US20190031618A1 - Benzimidazole derivatives useful as cb-1 inverse agonists - Google Patents

Benzimidazole derivatives useful as cb-1 inverse agonists Download PDF

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US20190031618A1
US20190031618A1 US16/150,484 US201816150484A US2019031618A1 US 20190031618 A1 US20190031618 A1 US 20190031618A1 US 201816150484 A US201816150484 A US 201816150484A US 2019031618 A1 US2019031618 A1 US 2019031618A1
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phenyl
sulfonyl
alkyl
carboxy
aminocarbonyl
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Mark J. Macielag
Rui Zhang
Yue-Mei Zhang
Bin Zhu
Michael H. Parker
Donald W. Ludovici
Daniel J. Parks
Bart L. Decorte
Michael N. Greco
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Janssen Pharmaceutica NV
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Janssen Pharmaceutica NV
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/18—Benzimidazoles; Hydrogenated benzimidazoles with aryl radicals directly attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/15—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen containing halogen
    • C07C53/16—Halogenated acetic acids
    • C07C53/18—Halogenated acetic acids containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/06—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
    • C07D403/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/06—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/14—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
    • C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
    • C07D409/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
    • C07D409/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
    • C07D417/06—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/08—Bridged systems

Definitions

  • the present invention is directed to benzimidazole derivatives, pharmaceutical compositions containing them and their use in the treatment of disorders and conditions mediated by the CB-1 receptor, more particularly, use in the treatment of disorders and conditions responsive to inverse agonism of the CB-1 receptor. More particularly, the compounds of the present invention are useful in the treatment of metabolic disorders.
  • Centrally penetrant cannabanoid-1 receptor (CB1) inverse agonist compounds are efficacious for weight loss, glycemic control and treatment of cardiovascular risk factors associated with obesity and/or Type II diabetes mellitus. However such compounds are also associated with serious adverse effects such as anxiety, depression, suicidal ideation, and others, which adverse effects preclude their use.
  • Peripherally restricted cannabanoid-1 receptor (CB1R) inverse agonists aim to selectively inhibit the CB1R in organs/tissues outside the blood-brain barrier, for example in the liver, adipose tissue and/or skeletal muscle, to avoid these adverse effects.
  • CB1R cannabanoid-1 receptor
  • the present invention is directed to compounds of formula (I)
  • R 0 is selected from the group consisting of hydrogen, —OH, —C(O)OH, —C(O)O—(C 1-4 alkyl), —CH 2 —OH, —CH 2 —O—(C 1-2 alkyl) and —CH 2 —O—(C 1-2 alkyl)-CO 2 H;
  • cylopropyl is selected from the group consisting of cylopropyl, cyclobutyl, cyclopentyl, cyclohexyl, phenyl, furyl, thienyl, thiazolyl, benzothiazolyl and benzo[d][1,3]dioxolyl;
  • phenyl, furyl, thienyl, thiazolyl or benzothiazolyl is optionally substituted with one or more substituents independently selected from the group consisting of halogen, hydroxy, C 1-4 alkyl, fluorinated C 1-2 alkyl, C 1-4 alkoxy, fluorinated C 1-2 alkoxy, cyano, —C(O)OH, —C(O)O—(C 1-4 alkyl), —C(O)NR A R B and NR A R B ; wherein R A and R B are each independently selected from the group consisting of hydrogen, alkyl and hydroxy substituted C 1-2 alkyl; provided that each substituent is bound to a carbon atom;
  • cylopropyl is selected from the group consisting of cylopropyl, cyclobutyl, cyclopentyl, cyclohexyl, phenyl, furyl, thienyl, thiazolyl, benzothiazolyl and benzo[d][1,3]dioxolyl;
  • phenyl, furyl, thienyl, thiazolyl or benzothiazolyl is optionally substituted with one or more substituents independently selected from the group consisting of halogen, hydroxy, C 1-4 alkyl, fluorinated C 1-2 alkyl, C 1-4 alkoxy, fluorinated C 1-2 alkoxy, cyano, —C(O)OH, —C(O)O—(C 1-4 alkyl), —C(O)NR C R D and NR C R D ; wherein R C and R D are each independently selected from the group consisting of hydrogen, alkyl and hydroxy substituted C 1-2 alkyl; provided that each substituent is bound to a carbon atom;
  • R 1 is selected from the group consisting of hydrogen, hydroxy and C 1-4 alkoxy
  • R 2 is selected from the group consisting of hydrogen, halogen, C 1-4 alkyl, fluorinated C 1-2 alkyl, —(C 1-2 alkyl)-OH, —(C 1-2 alkyl)-C(O)OH, —(C 1-2 alkyl)-NR E R F , —(C 2-4 alkenyl)-OH, —C(O)OH, —C(O)O—(C 1-2 alkyl), —NR E R F , C 3-6 cycloalkyl, phenyl, furyl, thienyl, pyridyl, azetidin-3-yl, oxetan-3-yl, tetrahydrofuran-2-yl and tetrahydropyran-4-yl;
  • phenyl is optionally substituted with one to two halogen; wherein the azetidin-3-yl is optionally substituted with —C(O)O—(C 1-4 alkyl); and wherein R E and R F are each independently selected from the group consisting of hydrogen and C 1-4 alkyl;
  • R 2 is selected from the group consisting of pyridyl, furyl and thienyl, then the R 2 is bound to the benzimidazole core through a carbon atom;
  • R 3 is selected from the group consisting of (a) through (k); wherein
  • R 4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)O—(C 1-2 alkyl), —C(O)NR G R H , —NH-(phenyl), and —NH—SO 2 -(phenyl); wherein the phenyl is optionally substituted with one or more substituents independently selected from the group consisting of halogen, hydroxy and carboxy; and wherein R G and R H are each independently selected from the group consisting of hydrogen and C 1-4 alkyl;
  • a is an integer from 0 to 1;
  • L 1 is selected from the group consisting of —CH 2 —, —CH 2 —CH 2 , —CH 2 CH 2 CH 2 —, —CH(CH 3 )CH 2 — and —CH 2 —CH(CH 3 )—;
  • R 5 is selected from the group consisting of hydrogen, C 1-2 alkyl, fluorinated C 1-2 alkyl, C 2-4 alkenyl, —(C 1-2 alkyl)-C(O)OH, —(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —(C 2-3 alkyl)-O-(phenyl), —C(O)—(C 1-2 alkyl)-OH, —C(O)—(C 1-2 alkyl)-C(O)OH, —C(O)—(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —C(O)—(C 1-2 alkyl)-C(O)—NH 2 , —C(O)OH, —C(O)O—(C 1-4 alkyl), —C(O)O—(C 3-5 cycloalkyl), —C(O)—NR J R K , —C(O)
  • phenyl, pyrimidin-2-yl, pyridyl, furyl, thienyl or pyridyl is optionally substituted with one or more substituents independently selected from the group consisting of halogen, hydroxy, C 1-4 alkyl, fluorinated C 1-2 alkyl, —(C 1-2 alkyl)-OH, —(C 1-2 alkyl)-C(O)OH, —(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —C( 1-2 alkyl)-C(O)OH, —(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —(C 1-2 alkyl)-C(O)—NR L R M , —O—(C 1-4 alkyl), —O-(fluorinated C 1-2 alkyl), —O—(C 2-6 alkenyl), —O—(C 1-2 alkyl,
  • R J and R K are each independently selected from the group consisting of hydrogen and C 1-4 alkyl; and wherein R L and R M are each independently selected from the group consisting of hydrogen and C 1-4 alkyl;
  • b is an integer from 0 to 1;
  • L 2 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH(CH 3 )—, —CH(CH 3 )—CH 2 —, —CH 2 —CH(CH 3 )—, —CH 2 CH 2 —O—, —CH 2 —CH(OH)—, —CH(CH 3 )—CH(OH) and —CH 2 CH 2 CH 2 —NH—SO 2 —;
  • R 6 is selected from the group consisting of hydrogen, halogen, hydroxy, C 1-2 alkyl, fluorinated C 1-2 alkyl, C 1-2 alkoxy, fluorinated C 1-2 alkoxy, —C(O)OH, —C(O)O—(C 1-2 alkyl), —O—(C 1-2 alkyl)-O—(C 1-2 alkyl), —O—(C 1-2 alkyl)-C(O)OH, —O—(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —C(O)—NR N R P , —O—(C 1-2 alkyl)-C(O)—NR N R P , phenyl, furyl and thienyl; wherein the phenyl, furyl or thienyl is optionally substituted with a substituent selected from the group consisting of halogen, C 1-4 alkyl and carboxy; and wherein R N and R N
  • R 7 is selected from the group consisting of hydrogen, halogen, hydroxy, C 1-4 alkyl, fluorinated C 1-2 alkyl, C 1-4 alkoxy, fluorinated C 1-2 alkoxy, —C(O)OH and —C(O)O—(C 1-4 alkyl);
  • L 3 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH 2 CH 2 CH 2 —, —CH(CH 3 )CH 2 —, —CH 2 CH(CH 3 )— and —CH 2 CH 2 —O—;
  • R 8 is selected from the group consisting of hydrogen, halogen, C 1-4 alkyl, C 1-4 alkoxy, —C(O)OH and —C(O)O—(C 1-4 alkyl);
  • c is an integer from 0 to 1;
  • L 4 is selected from the group consisting of —CH 2 — and —CH 2 —CH 2 —;
  • the present invention is further directed to a compound of formula (II)
  • the present invention is further directed to processes for the preparation of the compounds of formula (I) and the compound of formula (II).
  • the present invention is further directed to a product prepared according to any of the process(es) described herein.
  • the present invention is further directed to intermediate compounds useful in the synthesis of the compounds of formula (I) and the compound of formula (II), as described and defined in the synthesis schemes and examples which follow herein.
  • Illustrative of the invention is a pharmaceutical composition comprising a pharmaceutically acceptable carrier and the product prepared according to the process described herein.
  • An illustration of the invention is a pharmaceutical composition made by mixing the product prepared according to the process described herein and a pharmaceutically acceptable carrier.
  • Illustrating the invention is a process for making a pharmaceutical composition comprising mixing the product prepared according to the process described herein and a pharmaceutically acceptable carrier.
  • Exemplifying the invention are methods of treating a disorder mediated by the CB-1 receptor (selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain) comprising administering to a subject in need thereof a therapeutically effective amount of any of the compounds or pharmaceutical compositions described above.
  • a disorder mediated by the CB-1 receptor selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance,
  • the present invention is directed to a compound of formula (I) for use as a medicament.
  • the present invention is directed to a compound of formula (I) or compound of formula (II) for use in the treatment of a disorder mediated by the CB-1 receptor (selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain).
  • a disorder mediated by the CB-1 receptor selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA),
  • the present invention is directed to a composition
  • a disorder mediated by the CB-1 receptor selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain).
  • a disorder mediated by the CB-1 receptor selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL),
  • Another example of the invention is the use of any of the compounds described herein in the preparation of a medicament for treating: (a) obesity, (b) Type I diabetes, (c) Type II diabetes, (d) gestational diabetes, (e) latent autoimmune diabetes of adults (LADA), (f) pre-diabetes, (g) insulin resistance, (h) inadequate glucose tolerance, (i) dyslipidemia (including, but not limited to elevated triglycerides and LDL, and low HDL), (j) nonalcoholic steatohepatitis (NASH), (k) cirrhosis, (I) fatty liver disease, (m) atherosclerosis, (n) hypertension, (o) inflammatory bowel disease, (p) Alzheimer's disease, (q) osteoporosis, (r) multiple sclerosis, (s) traumatic brain injury, (t) arthritis, or (u) neuropathic pain, in a subject in need thereof.
  • NASH nonalcoholic steatohepatitis
  • cirrhosis
  • the present invention is directed to a compound as described herein for use in method for treating a disorder selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain, in a subject in need thereof.
  • a disorder selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL),
  • the present invention is directed to compounds of formula (I)
  • R 0 , R 1 , R 2 and R 3 are as herein defined; and stereoisomers, tautomers and pharmaceutically acceptable salts thereof.
  • the present invention is further directed to a compound of formula (II)
  • the compounds of formula (I) and the compound of formula (II) of the present invention are CB-1 receptor inverse agonists, useful in the treatment of metabolic disorders, including but not limited to obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain.
  • CB-1 receptor inverse agonists useful in the treatment of metabolic disorders, including but not limited to obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but
  • the present invention is directed to compounds of formula (I) wherein R 0 is selected from the group consisting of hydrogen, —OH, —C(O)OH, —C(O)O—(C 1-2 alkyl), —CH 2 —OH, —CH 2 —O—(C 1-2 alkyl) and —CH 2 —O—(C 1-2 alkyl)-CO 2 H.
  • the present invention is directed to compounds of formula (I) wherein R 0 is selected from the group consisting of hydrogen, —OH, —C(O)OH, —C(O)O—(C 1-2 alkyl), —CH 2 —OH, —CH 2 —O—(C 1-2 alkyl) and —CH 2 —O—(C 1-2 alkyl)-CO 2 H.
  • R 0 is selected from the group consisting of hydrogen, —OH, —C(O)OH, —C(O)OCH 3 , —CH 2 —OH, —CH 2 —OCH 3 and —CH 2 —OCH 2 —CO 2 H.
  • the present invention is directed to compound of formula (I) wherein R 0 is selected from the group consisting of hydrogen and —OH. In another embodiment, the present invention is directed to compound of formula (I) wherein R 0 is selected from the group consisting of hydrogen, —C(O)OH and —C(O)OCH 3 . In another embodiment, the present invention is directed to compound of formula (I) wherein R 0 is selected from the group consisting of hydrogen, —OH, —CH 2 OH and —CH 2 —OCH 3 . In another embodiment, the present invention is directed to compound of formula (I) wherein R 0 is hydrogen.
  • the present invention is directed to compounds of formula (I) wherein R 0 is selected from the group consisting of hydrogen, —OH, —CO 2 H, —C(O)OCH 3 and —CH 2 OCH 3 .
  • the present invention is directed to compounds of formula (I) wherein R 0 is selected from the group consisting of hydrogen, —OH, —CO 2 H and —C(O)OCH 3 .
  • the present invention is directed to compounds of formula (I) wherein R 0 is selected from the group consisting of hydrogen, —OH and —CO 2 H.
  • the present invention is directed to compounds of formula (I) wherein R 0 is selected from the group consisting of hydrogen and —OH.
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein
  • phenyl is phenyl; wherein the phenyl is optionally substituted a substituent independently selected from the group consisting of halogen and C 1-2 alkoxy.
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein
  • phenyl is selected from the group consisting of phenyl, 4-chlorophenyl, 4-fluorophenyl, 4-methylphenyl, 4-trifluoromethyl-phenyl, 4-carboxyphenyl, 4-methoxyphenyl, thiazol-2-yl, 4-ethyl-thiazol-2-yl, 5-ethyl-thiazol-2-yl, 4-t-butyl-thiazol-2-yl, 4-trifluoromethyl-thiazol-2-yl and benzo[d][1,3]dioxol-5-yl.
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein
  • the present invention is directed to compounds of formula (I) wherein R 1 is selected from the group consisting of hydrogen, hydroxy and C 1-2 alkoxy. In another embodiment, the present invention is directed to compounds of formula (I) wherein R 1 is selected from the group consisting of hydrogen, hydroxy and methoxy. In another embodiment, the present invention is directed to compounds of formula (I) wherein R 1 is selected from the group consisting of hydroxy and methoxy. In another embodiment, the present invention is directed to compounds of formula (I) wherein R 1 is selected from the group consisting of hydrogen and methoxy. In another embodiment, the present invention is directed to compounds of formula (I) wherein R 1 is hydrogen.
  • the present invention is directed to compounds of formula (I) wherein R 2 is selected from the group consisting of hydrogen, halogen, C 1-4 alkyl, fluorinated C 1-2 alkyl, —(C 1-2 alkyl)-OH, —(C 1-2 alkyl)-C(O)OH, —(C 1-2 alkyl)-NH 2 , —(C 2-4 alkenyl)-OH, —C(O)O—(C 1-2 alkyl), —NR E R F , C 3-5 cycloalkyl, phenyl, furyl, thienyl, pyridyl, oxetan-3-yl, azetidin-3-yl, tetrahydrofuran-2-yl and tetrahydropyran-4-yl; wherein the phenyl is optionally substituted with one to two halogen; wherein the azetidin-3-yl is optionally substituted with —
  • the present invention is directed to compounds of formula (I) wherein R 2 is selected from the group consisting of hydrogen, halogen, C 1-4 alkyl, fluorinated C 1-2 alkyl, —(C 1-2 alkyl)-OH, —(C 1-2 alkyl)-C(O)OH, —(C 1-2 alkyl)-NH 2 , —(C 2-4 alkenyl)-OH, —C(O)O—(C 1-2 alkyl), —NR E R F , C 3-6 cycloalkyl, phenyl, fur-2-yl, fur-3-yl, thien-3-yl, pyrid-2-yl, pyrid-3-yl, pyrid-4-yl, oxetan-3-yl, azetidin-3-yl, tetrahydrofuran-2-yl and tetrahydro-pyran-4-yl; wherein the phenyl is optional
  • the present invention is directed to compounds of formula (I) wherein R 2 is selected from the group consisting of hydrogen, chloro, methyl, ethyl, n-propyl, isopropyl, isobutyl, t-butyl, —CHF 2 , —CF 3 , —CH 2 —CF 3 , —CH 2 OH, —CH 2 CH 2 —C(O)OH, —CH 2 CH 2 —NH 2 , —C( ⁇ CH 2 )—CH 2 OH, —C(O)OCH 3 , —C(O)OCH 2 CH 3 , —NH 2 , —N(CH 3 ) 2 , cyclopropyl, cyclobutyl, cyclopentyl, oxetan-3-yl, azetidin-3-yl, 1-(t-butoxycarbonyl)-azetidin-3-yl, tetrahydrofuran-2-y
  • the present invention is directed to compounds of formula (I) wherein R 2 is selected from the group consisting of ethyl, cyclopropyl and cyclobutyl. In another embodiment, the present invention is directed to compounds of formula (I) wherein R 2 is selected from the group consisting of ethyl and cyclopropyl. In another embodiment, the present invention is directed to compounds of formula (I) wherein R 2 is cyclopropyl.
  • the present invention is directed to compounds of formula (I) wherein R 2 is selected from the group consisting of hydrogen, methyl, ethyl, cyclopropyl, cyclobutyl, amino-ethyl-, —C ⁇ (CH 2 )—CH 2 OH, oxetan-3-yl, tetrahydrofur-2-yl and pyrid-3-yl.
  • R 2 is selected from the group consisting of hydrogen, methyl, ethyl, cyclopropyl, cyclobutyl, oxetan-3-yl and tetrahydrofur-2-yl.
  • the present invention is directed to compounds of formula (I) wherein R 2 is selected from the group consisting of ethyl, cyclopropyl, cyclobutyl, oxetan-3-yl and tetrahydrofur-2-yl.
  • the present invention is directed to compounds of formula (I) wherein R 2 is selected from the group consisting of cyclopropyl, cyclobutyl and tetrahydrofur-2-yl.
  • the present invention is directed to compounds of formula (I) wherein R 3 is selected from the group consisting of (a) through (k); wherein
  • R 4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)O—(C 1-2 alkyl), —C(O)NR G R H , —NH-(phenyl), and —NH—SO 2 -(phenyl); wherein the phenyl is optionally substituted with hydroxy or carboxy; and wherein R G and R H are each independently selected from the group consisting of hydrogen and methyl; (b) is
  • a is an integer from 0 to 1; wherein L 1 is selected from the group consisting of —CH 2 —, —CH 2 —CH 2 , —CH(CH 3 )CH 2 — and —CH 2 —CH(CH 3 )—; wherein R 5 is selected from the group consisting of hydrogen, C 1-2 alkyl, fluorinated C 1-2 alkyl, C 2-4 alkenyl, —(C 1-2 alkyl)-C(O)OH, —(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —(C 2 alkyl)-O-(phenyl), —C(O)—(C 1-2 alkyl)-OH, —C(O)—(C 1-2 alkyl)-C(O)OH, —C(O)—(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —C(O)—(C 1-2 alkyl)-C(
  • L 2 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH(CH 3 )—, —CH(CH 3 )—CH 2 —, —CH 2 —CH(CH 3 )—, —CH 2 CH 2 —O—, —CH 2 —CH(OH)—, —CH(CH 3 )—CH(OH) and —CH 2 CH 2 CH 2 —NH—SO 2 —; wherein R 6 is selected from the group consisting of hydrogen, halogen, hydroxy, C 1-2 alkyl, fluorinated C 1-2 alkyl, C 1-2 alkoxy, fluorinated C 1-2 alkoxy, —C(O)OH, —C(O)O—(C 1-2 alkyl), —O—(C 1-2 alkyl)-C(O)OH, —O—(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl)-C(O)O—(C
  • L 3 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 — and —CH 2 CH 2 —O—; and wherein R 8 is selected from the group consisting of hydrogen, -halogen, C 1-2 alkyl, C 1-2 alkoxy, —C(O)OH and —C(O)O—(C 1-4 alkyl);
  • c is an integer from 0 to 1; and wherein L 4 is selected from the group consisting of —CH 2 — and —CH 2 —CH 2 —;
  • the present invention is directed to compounds of formula (I) wherein R 3 is selected from the group consisting of (a) through (k); wherein
  • R 4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)NR G R H , —NH-(phenyl) and —NH—SO 2 -(phenyl); wherein the phenyl is optionally substituted with hydroxy or carboxy; wherein R G and R H are each independently selected from the group consisting of hydrogen and methyl; (b) is
  • a is an integer from 0 to 1; and wherein L 1 is selected from the group consisting of —CH 2 — and —CH 2 —CH(CH 3 )—; wherein R 5 is selected from the group consisting of hydrogen, C 2-4 alkenyl, —(C 1-2 alkyl)-C(O)OH, —(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —(C 2 alkyl)-O-(phenyl), —C(O)—(C 1-2 alkyl)-OH, —C(O)—(C 1-2 alkyl)-C(O)OH, —C(O)—(C 1-2 alkyl)-C(O)—NH 2 , —C(O)O—(C 1-4 alkyl), —C(O)O-(hydroxy substituted C 1-4 alkyl), —C(O)O—(C 3-5 cycloalkyl), —C(O)NH—
  • L 2 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH(CH 3 )—, —CH(CH 3 )—CH 2 —, —CH 2 —CH(CH 3 )—, —CH 2 CH 2 —O—, —CH 2 —CH(OH)—, —CH(CH 3 )—CH(OH) and —CH 2 CH 2 CH 2 —NH—SO 2 —; wherein R 6 is selected from the group consisting of hydrogen, halogen, hydroxy, C 1-2 alkoxy, fluorinated C 1-2 alkyl, —C(O)OH, —C(O)O—(C 1-2 alkyl), —O—(C 1-2 alkyl)-C(O)OH, —O—(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —C(O)—NH 2 ,
  • L 3 is selected from the group consisting of —CH 2 — and —CH 2 CH 2 —O—; and wherein R 8 is selected from the group consisting of hydrogen, —C(O)OH and —C(O)O—(C 1-2 alkyl);
  • c is an integer from 0 to 1; wherein L 4 is —CH 2 —;
  • the present invention is directed to compounds of formula (I) wherein R 3 is selected from the group consisting of (a) through (k); wherein
  • R 4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)NH 2 , —NH—SO 2 -(3-carboxyphenyl), —NH-(3-hydroxyphenyl), —NH-(3-carboxyphenyl), —NH-(4-carboxyphenyl) and —NH—SO 2 -(4-carboxyphenyl); and wherein the cyclohexyl is bound to the benzimidazole core in a cis-, trans- or racemic stereo-orientation;
  • R 5 is selected from the group consisting of 3-carboxybenzyl-, 4-carboxyphenyl-sulfonyl- and 5-carboxyfur-2-yl-sulfonyl-;
  • R 5 is selected from the group consisting of 3-carboxybenzyl-, 4-carboxyphenyl-sulfonyl- and 5-carboxy-fur-2-yl-sulfonyl-;
  • a is an integer from 0 to 1;
  • L 1 is selected from the group consisting of —CH 2 — and —CH 2 —CH(R*—CH 3 )—; and wherein R 5 is selected from the group consisting of hydrogen, propyn-3-yl, carboxy-methyl-, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, 2-carboxy-ethyl-carbonyl-, aminocarbonyl-methyl-carbonyl-, 2-(aminocarbonyl)-ethyl-carbonyl-, ethoxycarbonyl-, t-butoxycarbonyl-, cyclopentyloxy-carbonyl-, 2,3,4-trihydroxy-n-butyloxy-carbonyl-, 3-carboxyphenyl, 4-carboxyphenyl, 3-(carboxy-methyl)-phenyl, 4-(car
  • R 5 is selected from the group consisting of ethoxycarbonyl- and trifluoromethyl-sulfonyl-;
  • R 5 is trifluoromethyl-sulfonyl-
  • L 2 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH(CH 3 )—, —CH(CH 3 )—CH 2 —, —CH 2 —CH(CH 3 )—, —CH 2 —CH(R*—CH 3 )—, —CH 2 —CH(S*—CH 3 )—, —CH 2 CH 2 —O—, —CH 2 —CH(OH)—, —CH 2 —CH(R*—OH), —CH(CH 3 )—CH(OH) and —CH 2 CH 2 CH 2 —NH—SO 2 —; wherein R 6 is selected from the group consisting of hydrogen, 3-bromo, 3-chloro, 4-chloro, 3-hydroxy, 4-hydroxy, 3-methoxy, 4-methoxy, 4-trifluoromethyl, 3-carboxy, 4-carboxy, 3-carboxy-methoxy-, 4-carbox
  • L 3 is selected from the group consisting of —CH 2 — and —CH 2 CH 2 —O—; and wherein R 8 is selected from the group consisting of hydrogen, carboxy and methoxycarbonyl-;
  • c is an integer from 0 to 1; wherein L 4 is —CH 2 —;
  • the present invention is directed to compounds of formula (I) wherein R 3 is selected from the group consisting of (a), (b), (d), (f), (g), (h) and (i); wherein
  • R 4 is selected from the group consisting of hydrogen, aminocarbonyl-, 3-hydroxyphenyl-amino-, 3-carboxyphenyl-amino-, 4-carboxyphenyl-amino-, 3-carboxyphenyl-sulfonyl-amino- and 4-carboxyphenyl-sulfonyl-amino-;
  • R 5 is selected from the group consisting of 3-carboxybenzyl- and 4-carboxyphenyl-sulfonyl-;
  • a is an integer from 0 to 1; wherein L 1 is —CH 2 —; and wherein R 5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, aminocarbonyl-methyl-carbonyl-, aminocarbonyl-ethyl-carbonyl-, ethoxycarbonyl-, t-butoxycarbonyl-, cyclopentyloxy-carbonyl-, 2,3,4-trihydroxy-n-butyloxy-carbonyl-, 3-carboxyphenyl, 4-carboxyphenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl
  • R 5 is trifluoromethyl-sulfonyl-
  • L 2 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH(CH 3 )—CH 2 —, —CH 2 —CH(R*—CH 3 )—, —CH 2 —CH(S*—CH 3 )—, —CH 2 CH 2 —O—, —CH 2 —CH(OH)— and —CH 2 CH 2 CH 2 —NH—SO 2 —; and wherein R 6 is selected from the group consisting of hydrogen, 3-chloro-, 4-chloro-, 3-bromo-, 4-bromo-, 3-hydroxy, 4-hydroxy-, 4-trifluoromethyl, 3-methoxy-, 4-methoxy-, 4-methoxycarbonyl-, 3-(ethoxy-carbonyl-methoxy)-, 4-(ethoxy-carbonyl-methoxy)-, 3-(aminocarbonyl-methoxy)-, 4-(aminocarbonyl-methoxy)-, 4-(amin
  • L 3 is —CH 2 CH 2 — and wherein R 8 is 5-methoxycarbonyl-;
  • c is an integer from 0 to 1; and wherein L 4 is —CH 2 —.
  • the present invention is directed to compounds of formula (I) wherein R 3 is selected from the group consisting of (a), (b), (d), (f), (g) and (i); wherein
  • a is an integer from 0 to 1; wherein L 1 is —CH 2 —; and wherein R 5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, ethoxycarbonyl-cyclopentyloxy-carbonyl-, 4-carboxyphenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 4-(aminocarbonyl-methoxy)-phenyl, 3-hydroxy-benzyl, 3-carboxy-benzyl, 4-carboxy-benzyl, 3-(aminocarbonyl)-benzyl
  • R 5 is trifluoromethyl-sulfonyl-
  • L 2 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH 2 —CH(R*—CH 3 )—, —CH 2 CH 2 —O—, —CH 2 —CH(OH)— and —CH 2 CH 2 CH 2 —NH—SO 2 —; and wherein R 6 is selected from the group consisting of hydrogen, 3-chloro-, 3-bromo-, 4-bromo-, 3-hydroxy, 4-trifluoromethyl, 3-methoxy-, 4-methoxy-, 3-(ethoxy-carbonyl-methoxy)-, 4-(ethoxy-carbonyl-methoxy)-, and 3-(5-carboxy-thein-2-yl); and R 7 is hydrogen;
  • the present invention is directed to compounds of formula (I) wherein R 3 is selected from the group consisting of (d), (f) and (g); wherein
  • R 5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 3-carboxy-benzyl, 3-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 3-fluoro-5-carboxy-benzyl, 1-(3-carboxyphenyl)-ethyl-, 1R*-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 5-carboxy-pyrimidin-2-yl, 5-aminocarbonyl
  • R 5 is trifluoromethyl-sulfonyl-
  • b is an integer from 0 to 1;
  • L 2 is —CH 2 CH 2 —; and wherein R 6 is selected from the group consisting of 3-chloro-, 4-trifluoromethyl, 4-methoxy- and 4-(ethoxy-carbonyl-methoxy)-; and R 7 is hydrogen.
  • the present invention is directed to compounds of formula (I) wherein R 3 is selected from the group consisting of (d), (f) and (g); wherein
  • R 5 is selected from the group consisting of methoxy-carbonyl-methyl-, 3-(aminocarbonyl)-benzyl, 1R*-(3-carboxyphenyl)-ethyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 3-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-a
  • R 5 is trifluoromethyl-sulfonyl-
  • b is an integer from 0 to 1;
  • L 2 is —CH 2 CH 2 —; and wherein R 6 is selected from the group consisting of 4-trifluoromethyl, 4-methoxy- and 4-(ethoxy-carbonyl-methoxy)-; and R 7 is hydrogen.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (a)
  • the present invention is directed to compounds of formula (I) wherein R 3 is (b)
  • the present invention is directed to compounds of formula (I) wherein R 3 is (c)
  • the present invention is directed to compounds of formula (I) wherein
  • R 3 is (d)
  • the present invention is directed to compounds of formula (I) wherein R 3 is (e)
  • the present invention is directed to compounds of formula (I) wherein R 3 is (f)
  • the present invention is directed to compounds of formula (I) wherein R 3 is (g)
  • the present invention is directed to compounds of formula (I) wherein R 3 is (h)
  • the present invention is directed to compounds of formula (I) wherein R 3 is (i)
  • the present invention is directed to compounds of formula (I) wherein
  • R 3 is (j)
  • the present invention is directed to compounds of formula (I) wherein R 3 is (k)
  • the present invention is directed to compounds of formula (I) wherein R 3 is (a); wherein (a) is
  • R 4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)O—(C 1-2 alkyl), —C(O)NR G R H , —NH-(phenyl), and —NH—SO 2 -(phenyl); wherein the phenyl is optionally substituted with hydroxy or carboxy; and wherein R G and R H are each independently selected from the group consisting of hydrogen and methyl.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (a); wherein (a) is
  • R 4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)NR G R H , —NH-(phenyl) and —NH—SO 2 -(phenyl); wherein the phenyl is optionally substituted with hydroxy or carboxy; wherein R G and R H are each independently selected from the group consisting of hydrogen and methyl.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (a); wherein (a) is
  • R 4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)NH 2 , —NH—SO 2 -(3-carboxyphenyl), —NH-(3-hydroxyphenyl), —NH-(3-carboxyphenyl), —NH-(4-carboxyphenyl) and —NH—SO 2 -(4-carboxyphenyl); and wherein the cyclohexyl is bound to the benzimidazole core in a cis-, trans- or racemic stereo-orientation.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (a) is
  • R 4 is selected from the group consisting of hydrogen, aminocarbonyl-, 3-hydroxyphenyl-amino-, 3-carboxyphenyl-amino-, 4-carboxyphenyl-amino-, 3-carboxyphenyl-sulfonyl-amino- and 4-carboxyphenyl-sulfonyl-amino-.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (a) is
  • the present invention is directed to compounds of formula (I) wherein R 3 is selected from the group consisting of (b) through (f);
  • a is an integer from 0 to 1; wherein L 1 is selected from the group consisting of —CH 2 —, —CH 2 —CH 2 , —CH(CH 3 )CH 2 — and —CH 2 —CH(CH 3 )—; wherein R 5 is selected from the group consisting of hydrogen, C 1-2 alkyl, fluorinated C 1-2 alkyl, C 2-4 alkenyl, —(C 1-2 alkyl)-C(O)OH, —(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —(C 2 alkyl)-O-(phenyl), —C(O)—(C 1-2 alkyl)-OH, —C(O)—(C 1-2 alkyl)-C(O)OH, —C(O)—(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —C(O)—(C 1-2 alkyl)-C(
  • the present invention is directed to compounds of formula (I) wherein R 3 is selected from the group consisting of (b) through (f);
  • a is an integer from 0 to 1; and wherein L 1 is selected from the group consisting of —CH 2 — and —CH 2 —CH(CH 3 )—; wherein R 5 is selected from the group consisting of hydrogen, C 2-4 alkenyl, —(C 1-2 alkyl)-C(O)OH, —(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —(C 2 alkyl)-O-(phenyl), —C(O)—(C 1-2 alkyl)-OH, —C(O)—(C 1-2 alkyl)-C(O)OH, —C(O)—(C 1-2 alkyl)-C(O)—NH 2 , —C(O)O—(C 1-4 alkyl), —C(O)O-(hydroxy substituted C 1-4 alkyl), —C(O)O—(C 3-5 cycloalkyl), —C(O)NH—
  • the present invention is directed to compounds of formula (I) wherein R 3 is (b); wherein (b) is
  • R 5 is selected from the group consisting of 3-carboxybenzyl-, 4-carboxyphenyl-sulfonyl- and 5-carboxyfur-2-yl-sulfonyl-.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (b) is
  • R 5 is selected from the group consisting of 3-carboxybenzyl- and 4-carboxyphenyl-sulfonyl-.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (b) is
  • the present invention is directed to compounds of formula (I) wherein R 3 is (c); wherein (c) is
  • R 5 is selected from the group consisting of 3-carboxybenzyl-, 4-carboxyphenyl-sulfonyl- and 5-carboxy-fur-2-yl-sulfonyl-.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (d); wherein (d) is
  • a is an integer from 0 to 1;
  • L 1 is selected from the group consisting of —CH 2 — and —CH 2 —CH(R*—CH 3 )—; and wherein R 5 is selected from the group consisting of hydrogen, propyn-3-yl, carboxy-methyl-, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, 2-carboxy-ethyl-carbonyl-, aminocarbonyl-methyl-carbonyl-, 2-(aminocarbonyl)-ethyl-carbonyl-, ethoxycarbonyl-, t-butoxycarbonyl-, cyclopentyloxy-carbonyl-, 2,3,4-trihydroxy-n-butyloxy-carbonyl-, 3-carboxyphenyl, 4-carboxyphenyl, 3-(carboxy-methyl)-phenyl, 4-(car
  • the present invention is directed to compounds of formula (I) wherein R 3 is (d) is
  • a is an integer from 0 to 1; wherein L 1 is —CH 2 —; and wherein R 5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, aminocarbonyl-methyl-carbonyl-, aminocarbonyl-ethyl-carbonyl-, ethoxycarbonyl-, t-butoxycarbonyl-, cyclopentyloxy-carbonyl-, 2,3,4-trihydroxy-n-butyloxy-carbonyl-, 3-carboxyphenyl, 4-carboxyphenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl
  • the present invention is directed to compounds of formula (I) wherein R 3 is (d) is
  • a is an integer from 0 to 1; wherein L 1 is —CH 2 —; and wherein R 5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, ethoxycarbonyl-cyclopentyloxy-carbonyl-, 4-carboxyphenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 4-(aminocarbonyl-methoxy)-phenyl, 3-hydroxy-benzyl, 3-carboxy-benzyl, 4-carboxy-benzyl, 3-(aminocarbonyl)-benzyl
  • the present invention is directed to compounds of formula (I) wherein R 3 is (d) is
  • R 5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 3-carboxy-benzyl, 3-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 3-fluoro-5-carboxy-benzyl, 1-(3-carboxyphenyl)-ethyl-, 1R′-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 5-carboxy-pyrimidin-2-yl, 5-aminocarbonyl
  • the present invention is directed to compounds of formula (I) wherein R 3 is (d) is
  • R 5 is selected from the group consisting of methoxy-carbonyl-methyl-, 3-(aminocarbonyl)-benzyl, 1R*-(3-carboxyphenyl)-ethyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 3-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-a
  • the present invention is directed to compounds of formula (I) wherein R 3 is (e); wherein (e) is
  • R 5 is selected from the group consisting of ethoxycarbonyl- and trifluoromethyl-sulfonyl-.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (f); wherein (f) is
  • R 5 is trifluoromethyl-sulfonyl-.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (g); wherein (g) is
  • L 2 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH(CH 3 )—, —CH(CH 3 )—CH 2 —, —CH 2 —CH(CH 3 )—, —CH 2 CH 2 —O—, —CH 2 —CH(OH)—, —CH(CH 3 )—CH(OH) and CH 2 CH 2 CH 2 —NH—SO 2 —; wherein R 6 is selected from the group consisting of hydrogen, halogen, hydroxy, C 1-2 alkyl, fluorinated C 1-2 alkyl, C 1-2 alkoxy, fluorinated C 1-2 alkoxy, —C(O)OH, —C(O)O—(C 1-2 alkyl), —O—(C 1-2 alkyl)-C(O)OH, —O—(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl)—(C 1-2 alkyl)
  • the present invention is directed to compounds of formula (I) wherein R 3 is (g); wherein (g) is
  • L 2 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH(CH 3 )—, —CH(CH 3 )—CH 2 —, —CH 2 —CH(CH 3 )—, —CH 2 CH 2 —O—, —CH 2 —CH(OH)—, —CH(CH 3 )—CH(OH) and CH 2 CH 2 CH 2 —NH—SO 2 —; wherein R 6 is selected from the group consisting of hydrogen, halogen, hydroxy, C 1-2 alkoxy, fluorinated C 1-2 alkyl, —C(O)OH, —C(O)O—(C 1-2 alkyl), —O—(C 1-2 alkyl)-C(O)OH, —O—(C 1-2 alkyl)-C(O)O—(C 1-2 alkyl), —C(O)—NH 2 , —O
  • the present invention is directed to compounds of formula (I) wherein R 3 is (g); wherein (g) is
  • L 2 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH(CH 3 )—, —CH(CH 3 )—CH 2 —, —CH 2 —CH(CH 3 )—, —CH 2 —CH(R*—CH 3 )—, —CH 2 —CH(S*—CH 3 )—, —CH 2 CH 2 —O—, —CH 2 —CH(OH)—, —CH 2 —CH(R*—OH), —CH(CH 3 )—CH(OH) and CH 2 CH 2 CH 2 —NH—SO 2 —; wherein R 6 is selected from the group consisting of hydrogen, 3-bromo, 3-chloro, 4-chloro, 3-hydroxy, 4-hydroxy, 3-methoxy, 4-methoxy, 4-trifluoromethyl, 3-carboxy, 4-carboxy, 3-carboxy-methoxy-, 4-carboxy-
  • the present invention is directed to compounds of formula (I) wherein R 3 is (g) is
  • L 2 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH(CH 3 )—CH 2 —, —CH 2 —CH(R*—CH 3 )—, —CH 2 —CH(S*—CH 3 )—, —CH 2 CH 2 —O—, —CH 2 —CH(OH)— and —CH 2 CH 2 CH 2 —NH—SO 2 —; and wherein R 8 is selected from the group consisting of hydrogen, 3-chloro-, 4-chloro-, 3-bromo-, 4-bromo-, 3-hydroxy, 4-hydroxy-, 4-trifluoromethyl, 3-methoxy-, 4-methoxy-, 4-methoxycarbonyl-, 3-(ethoxy-carbonyl-methoxy)-, 4-(ethoxy-carbonyl-methoxy)-, 3-(aminocarbonyl-methoxy)-, 4-(aminocarbonyl-methoxy)-, 4-(amin
  • the present invention is directed to compounds of formula (I) wherein R 3 is (g) is
  • L 2 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH 2 —CH(R*—CH 3 )—, —CH 2 CH 2 —O—, —CH 2 —CH(OH)— and —CH 2 CH 2 CH 2 —NH—SO 2 —; and wherein R 5 is selected from the group consisting of hydrogen, 3-chloro-, 3-bromo-, 4-bromo-, 3-hydroxy, 4-trifluoromethyl, 3-methoxy-, 4-methoxy-, 3-(ethoxy-carbonyl-methoxy)-, 4-(ethoxy-carbonyl-methoxy)-, and 3-(5-carboxy-thein-2-yl); and R 7 is hydrogen.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (g) is
  • b is an integer from 0 to 1;
  • L 2 is —CH 2 CH 2 —; and wherein R 6 is selected from the group consisting of 3-chloro-, 4-trifluoromethyl, 4-methoxy- and 4-(ethoxy-carbonyl-methoxy)-; and R 7 is hydrogen.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (g) is
  • b is an integer from 0 to 1;
  • L 2 is —CH 2 CH 2 —; and wherein R 6 is selected from the group consisting of 4-trifluoromethyl, 4-methoxy- and 4-(ethoxy-carbonyl-methoxy)-; and R 7 is hydrogen.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (h); wherein (h) is
  • L 3 is selected from the group consisting of —CH 2 —, —CH 2 CH 2 — and —CH 2 CH 2 —O—; and wherein R 8 is selected from the group consisting of hydrogen, -halogen, C 1-2 alkyl, C 1-2 alkoxy, —C(O)OH and —C(O)O—(C 1-4 alkyl).
  • the present invention is directed to compounds of formula (I) wherein R 3 is (h); wherein (h) is
  • L 3 is selected from the group consisting of —CH 2 — and —CH 2 CH 2 —O—; and wherein R 8 is selected from the group consisting of hydrogen, —C(O)OH and —C(O)O—(C 1-2 alkyl).
  • the present invention is directed to compounds of formula (I) wherein R 3 is (h); wherein (h) is
  • L 3 is selected from the group consisting of —CH 2 — and —CH 2 CH 2 —O—; and wherein R 8 is selected from the group consisting of hydrogen, carboxy and methoxycarbonyl-.
  • the present invention is directed to compounds of formula (I) wherein
  • L 3 is —CH 2 CH 2 — and wherein R 8 is 5-methoxycarbonyl-.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (i); wherein (i) is
  • c is an integer from 0 to 1; and wherein L 4 is selected from the group consisting of —CH 2 — and —CH 2 —CH 2 —.
  • the present invention is directed to compounds of formula (I) wherein R 3 is (i); wherein (i) is
  • the present invention is directed to compounds of formula (I) wherein R 3 is selected from the group consisting of 1-(3-fluoro-5-carboxy-benzyl)-piperidin-4-yl, 1-(2-fluoro-5-carboxy-benzyl)-piperidin-4-yl, 1-(5-carboxy-pyrid-2-yl-methyl)-piperidin-4-yl, 1-(6-carboxy-pyrid-2-yl-methyl)-piperidin-4-yl, 1-(5-carboxy-thien-2-yl-methyl)-piperidin-4-yl, 1-(4-carboxy-thien-2-yl-sulfonyl)-piperidin-4-yl, 1-(5-carboxy-fur-2-yl-sulfonyl)-piperidin-4-yl, 1-(3-carboxy-benzyl)-piperidin-4-yl, 1-(3-carboxy-phenyl-sulfyl
  • the present invention is directed to compounds of formula (I) wherein R 3 is selected from the group consisting of 1-(3-fluoro-5-carboxy-benzyl)-piperidin-4-yl, 1-(2-fluoro-5-carboxy-benzyl)-piperidin-4-yl, 1-(5-carboxy-pyrid-2-yl-methyl)-piperidin-4-yl, 1-(6-carboxy-pyrid-2-yl-methyl)-piperidin-4-yl, 1-(5-carboxy-thien-2-yl-methyl)-piperidin-4-yl, 1-(3-carboxy-benzyl)-piperidin-4-yl, 1-(3-carboxy-phenyl-sulfonyl)-piperidin-4-yl, 1-(3-hydroxy-phenyl-sulfonyl)-piperidin-4-yl, 1-trifluoromethyl-sulfonyl-piperidin-4-yl
  • the present invention is directed to compounds of formula (I) wherein the substituents selected for the variables defined herein (e.g., the substituents selected for the variables defined herein (e.g., the substituents selected for the variables defined herein (e.g., the substituents selected for the variables defined herein (e.g., the substituents selected for the variables defined herein (e.g., the substituents selected for the variables defined herein (e.g.
  • R 0 , R 1 , R 2 and R 3 , etc. are independently selected to be any individual substituent or any subset of substituents selected from the substituents found on compounds listed in Table BIO-1 as exhibiting CB-1 binding EC 50 (as measured according to the procedure described in Biological Example 1) of less than about 0.1 ⁇ M, preferably exhibiting CB-1 binding EC 50 of less than about 0.01 ⁇ M, more preferably, exhibiting CB-1 binding EC 50 less than about 0.05 ⁇ M, more preferably, exhibiting CB-1 binding EC 50 less than about 0.025 ⁇ M.
  • the present invention is directed to compound of formula (I), wherein the substituents selected for one or more of the variables defined herein (e.g.
  • R 0 , R 1 , R 2 and R 3 , etc. are independently selected to be any individual substituent or any subset of substituents selected from the complete list as defined herein.
  • R 0 , R 1 , R 2 and R 3 , etc. are independently selected to be any individual substituent or subset of substituents selected from those exemplified in the Tables which follow herein.
  • the present invention is directed to any single compound or subset of compounds selected from the representative compounds listed in Tables 1-5 below.
  • Representative compounds of the present invention are as listed in Tables 1-5, below. Unless otherwise noted, wherein a stereogenic center is present in the listed compound, the compound was prepared as a mixture of stereo-configurations. Where a stereogenic center is present, the S*— and R* designations are intended to indicate that the exact stereo-configuration of the center has not been determined.
  • halogen shall mean chlorine, bromine, fluorine and iodine.
  • alkyl whether used alone or as part of a substituent group, include straight and branched chains.
  • alkyl radicals include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, t-butyl, pentyl and the like.
  • C X-Y alkyl wherein X and Y are integers, shall mean a carbon chain composition of between X and Y carbon atoms.
  • C 1-4 alkyl shall mean any straight or branched chain composition of between 1 and 4 carbon atoms (including methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl and t-butyl).
  • C X-Y alkyl shall denote any C X-Y alkyl straight or branched chain composition as defined above, wherein said C X-Y alkyl straight or branched chain composition is divalent and is therefore bound through two points of attachment, preferably through two terminal carbon atoms.
  • halogenated C 1-4 alkyl shall mean any C X-Y alkyl group as defined above substituted with at least one halogen atom, preferably substituted with a least one fluoro atom. Suitable examples include but are not limited to —CH 2 F, —CH 2 I, —CH 2 Br, —CH 2 Cl, —CF 3 , —CCl 3 , —CH 2 —CF 3 , CH 2 —CCl 3 , —CF 2 —CF 2 —CF 2 —CF 3 , and the like.
  • fluorinated C 1-4 alkyl shall mean any C X-Y alkyl group as defined above substituted with at least one fluoro atom, preferably one to three fluoro atoms. Suitable examples include, but are not limited, to —CF 3 , —CH 2 —CF 3 , —CF 2 —CF 2 —CF 2 —CF 3 , and the like.
  • hydroxy substituted C X-Y alkyl shall mean any C X-Y alkyl group as defined above, substituted with at least one hydroxy group, preferably one to two hydroxy groups, more preferably one hydroxy group; provided that when the “hydroxy substituted C X-Y alkyl” is bound to a N or O atom of a substituent group as defined herein, then the hydroxy group(s) on the “hydroxy substituted C X-Y alkyl” are not bound to C-1 carbon atom of the C X-Y alkyl portion of the “hydroxy substituted C X-Y alkyl” (i.e.
  • the hydroxy group(s) are not bound to the carbon atom which is directly bound to the N or O atom of said substituent group). Suitable examples include but are not limited to —CH 2 OH, —CH 2 CH 2 OH, —CH(OH)CH 3 , —CH 2 CH 2 CH 2 OH, —CH 2 CH(OH)CH 3 , —CH 2 CH 2 CH 2 CH 2 OH, —C(CH 2 CH 2 OH) 2 —CH 2 CH 2 OH, and the like.
  • the C X-Y alkyl is substituted with the hydroxy group(s) at terminal carbon atom(s).
  • C X-Y alkenyl wherein X and Y are integers, shall mean a carbon chain composition of between X and Y carbon atoms wherein the carbon chain contains at least one, preferably one, double bond.
  • C 3-4 alkenyl shall mean a 3 to 4 carbon chain composition containing at least one, preferably one, double bond. Suitable example include, but are not limited to —CH 2 —CH ⁇ CH 2 , —CH ⁇ CH—CH 2 and the like.
  • —(C X-Y alkenyl)- shall denote any C X-Y alkenyl carbon chain composition as defined above, wherein said C X-Y alkenyl is divalent and is therefore bound through two points of attachment, preferably through two terminal carbon atoms.
  • the term “—(C 2-4 alkenyl)-” shall mean any 2 to 4 carbon atom chain containing at least one, preferably one double bond. Suitable examples include, but are not limited to —CH ⁇ CH—, —CH 2 —CH ⁇ CH—, —CH ⁇ CH—CH 2 —, —CH ⁇ CH—CH(CH 3 )— and the like.
  • alkoxy shall denote an oxygen ether radical of the above described straight or branched chain alkyl groups. For example, methoxy, ethoxy, n-propoxy, sec-butoxy, t-butoxy, n-hexyloxy and the like.
  • C X-Y alkoxy wherein X and Y are integers, shall mean an oxygen ether radical of the above described straight or branched chain carbon chain composition of between X and Y carbon atoms.
  • C 1-4 alkoxy shall mean any oxygen ether radical of the above described straight or branched chain composition of between 1 and 4 carbon atoms.
  • halogenated C 1-4 alkoxy shall mean any C 1-4 alkoxy group as defined above substituted with at least one halogen atom, preferably substituted with a least one fluoro atom. Suitable examples include but are not limited to —OCH 2 F, —OCH 2 I, —OCH 2 Br, —OCH 2 Cl, —OCF 3 , —OCCl 3 , —OCH 2 —CF 3 , —OCH 2 —CCl 3 , —OCF 2 —CF 2 —CF 2 —CF 3 , and the like.
  • fluorinated C 1-4 alkoxy shall mean any C 1-4 alkoxy group as defined above substituted with at least one fluoro atom, preferably one to three fluoro atoms. Suitable examples include but are not limited to —OCF 3 , —OCH 2 —CF 3 , —OCF 2 —CF 2 —CF 2 —CF 3 , and the like.
  • cycloalkyl shall mean any stable 3-8 membered monocyclic, saturated ring system, for example cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl and cyclooctyl.
  • C X-y cycloalkyl wherein X and Y are integers, shall mean a cycloalkyl ring structure as herein defined wherein the ring structure contains between X and Y carbon atoms.
  • C 3-6 cycloalkyl shall include cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl.
  • substituents e.g., alkyl, cycloalkyl, aryl, heteroaryl, heterocycloalkyl, etc.
  • that group may have one or more substituents, preferably from one to five substituents, more preferably from one to three substituents, most preferably from one to two substituents, independently selected from the list of substituents.
  • the compounds according to this invention may accordingly exist as enantiomers. Where the compounds possess two or more chiral centers, they may additionally exist as diastereomers. It is to be understood that all such isomers and mixtures thereof are encompassed within the scope of the present invention.
  • the enantiomer is present at an enantiomeric excess of greater than or equal to about 80%, more preferably, at an enantiomeric excess of greater than or equal to about 90%, more preferably still, at an enantiomeric excess of greater than or equal to about 95%, more preferably still, at an enantiomeric excess of greater than or equal to about 98%, most preferably, at an enantiomeric excess of greater than or equal to about 99%.
  • the diastereomer is present at an diastereomeric excess of greater than or equal to about 80%, more preferably, at an diastereomeric excess of greater than or equal to about 90%, more preferably still, at an diastereomeric excess of greater than or equal to about 95%, more preferably still, at an diastereomeric excess of greater than or equal to about 98%, most preferably, at an diastereomeric excess of greater than or equal to about 99%.
  • crystalline forms for the compounds of the present invention may exist as polymorphs and as such are intended to be included in the present invention.
  • some of the compounds of the present invention may form solvates with water (i.e., hydrates) or common organic solvents, and such solvates are also intended to be encompassed within the scope of this invention.
  • any element in particular when mentioned in relation to a compound of formula (I), shall comprise all isotopes and isotopic mixtures of said element, either naturally occurring or synthetically produced, either with natural abundance or in an isotopically enriched form.
  • a reference to hydrogen includes within its scope 1 H, 2 H (D), and 3 H (T).
  • references to carbon and oxygen include within their scope respectively 12 C, 13 C and 14 C and 16 O and 18 O.
  • the isotopes may be radioactive or non-radioactive.
  • Radiolabelled compounds of formula (I) may comprise a radioactive isotope selected from the group of 3 H, 11 C, 18 F, 122 I, 123 I, 125 I, 131 I, 75 Br, 76 Br, 77 Br and 82 Br.
  • the radioactive isotope is selected from the group of 3 H, 11 C and 18 F.
  • a “phenylC 1 -C 6 alkylaminocarbonylC 1 -C 6 alkyl” substituent refers to a group of the formula
  • the compounds of the present invention are CB-1 inverse agonists useful for the treatment and/or prevention of metabolic disorders, including obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain.
  • the metabolic disorder is selected from the group consisting of obesity, Type II diabetes, and dyslipidemias. More preferably, the metabolic disorder is obesity or Type II diabetes.
  • treating shall include the management and care of a subject or patient (preferably mammal, more preferably human) for the purpose of combating a disease, condition, or disorder and includes the administration of a compound of the present invention to prevent the onset of the symptoms or complications, alleviate the symptoms or complications, or eliminate the disease, condition, or disorder.
  • prevention shall include (a) reduction in the frequency of one or more symptoms; (b) reduction in the severity of one or more symptoms; (c) the delay or avoidance of the development of one or more additional symptoms; and/or (d) delay or avoidance of the development or progression of the disorder or condition.
  • a subject in need of thereof shall include any subject or patient (preferably a mammal, more preferably a human) who has experienced or exhibited at least one symptom of the disorder, disease or condition to be prevented.
  • a subject in need thereof may additionally be a subject (preferably a mammal, more preferably a human) who has not exhibited any symptoms of the disorder, disease or condition to be prevented, but who has been deemed by a physician, clinician or other medical profession to be at risk of developing said disorder, disease or condition.
  • the subject may be deemed at risk of developing a disorder, disease or condition (and therefore in need of prevention or preventive treatment) as a consequence of the subject's medical history, including, but not limited to, family history, pre-disposition, co-existing (comorbid) disorders or conditions, genetic testing, and the like.
  • subject refers to an animal, preferably a mammal, most preferably a human, who has been the object of treatment, observation or experiment. Preferably, the subject has experienced and/or exhibited at least one symptom of the disease or disorder to be treated and/or prevented.
  • terapéuticaally effective amount means that amount of active compound or pharmaceutical agent that elicits the biological or medicinal response in a tissue system, animal or human that is being sought by a researcher, veterinarian, medical doctor or other clinician, which includes alleviation of the symptoms of the disease or disorder being treated.
  • composition is intended to encompass a product comprising the specified ingredients in the specified amounts, as well as any product which results, directly or indirectly, from combinations of the specified ingredients in the specified amounts.
  • reaction step(s) is performed under suitable conditions, according to known methods, to provide the desired product.
  • a reagent or reagent class/type e.g.
  • the individual reagents are independently selected for each reaction step and may be the same or different from each other.
  • the organic or inorganic base selected for the first step may be the same or different than the organic or inorganic base of the second step.
  • a reaction step of the present invention may be carried out in a variety of solvents or solvent systems, said reaction step may also be carried out in a mixture of the suitable solvents or solvent systems. Examples of suitable solvents, bases, reaction temperatures, and other reaction parameters and components are provided in the detailed descriptions which follow herein.
  • suitable solvents, bases, reaction temperatures, and other reaction parameters and components are provided in the detailed descriptions which follow herein.
  • aprotic solvent shall mean any solvent that does not yield a proton. Suitable examples include, but are not limited to DMF, 1,4-dioxane, THF, acetonitrile, pyridine, dichloroethane, dichloromethane, MTBE, toluene, acetone, and the like.
  • the term “leaving group” shall mean a charged or uncharged atom or group which departs during a substitution or displacement reaction. Suitable examples include, but are not limited to, Br, Cl, I, mesylate, tosylate, and the like.
  • nitrogen protecting group shall mean a group which may be attached to a nitrogen atom to protect said nitrogen atom from participating in a reaction and which may be readily removed following the reaction.
  • Suitable nitrogen protecting groups include, but are not limited to carbamates—groups of the formula —C(O)O—R wherein R is for example methyl, ethyl, t-butyl, benzyl, phenylethyl, CH 2 ⁇ CH—CH 2 —, and the like; amides—groups of the formula —C(O)—R′ wherein R′ is for example methyl, phenyl, trifluoromethyl, and the like; N-sulfonyl derivatives—groups of the formula —SO 2 —R′′ wherein R′′ is for example tolyl, phenyl, trifluoromethyl, 2,2,5,7,8-pentamethylchroman-6-yl-, 2,3,6-trimethyl-4-methoxybenz
  • the processes for the preparation of the compounds according to the invention give rise to mixture of stereoisomers
  • these isomers may be separated by conventional techniques such as preparative chromatography.
  • the compounds may be prepared in racemic form, or individual enantiomers may be prepared either by enantiospecific synthesis or by resolution.
  • the compounds may, for example, be resolved into their component enantiomers by standard techniques, such as the formation of diastereomeric pairs by salt formation with an optically active acid, such as ( ⁇ )-di-p-toluoyl-D-tartaric acid and/or (+)-di-p-toluoyl-L-tartaric acid followed by fractional crystallization and regeneration of the free base.
  • the compounds may also be resolved by formation of diastereomeric esters or amides, followed by chromatographic separation and removal of the chiral auxiliary. Alternatively, the compounds may be resolved using a chiral HPLC column.
  • chiral HPLC against a standard may be used to determine percent enantiomeric excess (% ee).
  • the enantiomeric excess may be calculated as follows
  • the enantiomeric excess may alternatively be calculated from the specific rotations of the desired enantiomer and the prepared mixture as follows:
  • the present invention includes within its scope prodrugs of the compounds of this invention.
  • prodrugs will be functional derivatives of the compounds which are readily convertible in vivo into the required compound.
  • the term “administering” shall encompass the treatment of the various disorders described with the compound specifically disclosed or with a compound which may not be specifically disclosed, but which converts to the specified compound in vivo after administration to the patient.
  • Conventional procedures for the selection and preparation of suitable prodrug derivatives are described, for example, in “ Design of Prodrugs ”, ed. H. Bundgaard, Elsevier, 1985.
  • the salts of the compounds of this invention refer to non-toxic “pharmaceutically acceptable salts.”
  • Other salts may, however, be useful in the preparation of compounds according to this invention or of their pharmaceutically acceptable salts.
  • Suitable pharmaceutically acceptable salts of the compounds include acid addition salts which may, for example, be formed by mixing a solution of the compound with a solution of a pharmaceutically acceptable acid such as hydrochloric acid, sulfuric acid, fumaric acid, maleic acid, succinic acid, acetic acid, benzoic acid, citric acid, tartaric acid, carbonic acid or phosphoric acid.
  • suitable pharmaceutically acceptable salts thereof may include alkali metal salts, e.g., sodium or potassium salts; alkaline earth metal salts, e.g., calcium or magnesium salts; and salts formed with suitable organic ligands, e.g., quaternary ammonium salts.
  • alkali metal salts e.g., sodium or potassium salts
  • alkaline earth metal salts e.g., calcium or magnesium salts
  • suitable organic ligands e.g., quaternary ammonium salts.
  • representative pharmaceutically acceptable salts include, but are not limited to, the following: acetate, benzenesulfonate, benzoate, bicarbonate, bisulfate, bitartrate, borate, bromide, calcium edetate, camsylate, carbonate, chloride, clavulanate, citrate, dihydrochloride, edetate, edisylate, estolate, esylate, fumarate, gluceptate, gluconate, glutamate, glycollylarsanilate, hexylresorcinate, hydrabamine, hydrobromide, hydrochloride, hydroxynaphthoate, iodide, isothionate, lactate, lactobionate, laurate, malate, maleate, mandelate, mesylate, methylbromide, methylnitrate, methylsulfate, mucate, napsylate, nitrate, N-methylglucamine ammonium
  • acids which may be used in the preparation of pharmaceutically acceptable salts include, but are not limited to, the following: acids including acetic acid, 2,2-dichloroacetic acid, acylated amino acids, adipic acid, alginic acid, ascorbic acid, L-aspartic acid, benzenesulfonic acid, benzoic acid, 4-acetamidobenzoic acid, (+)-camphoric acid, camphorsulfonic acid, (+)-(1S)-camphor-10-sulfonic acid, capric acid, caproic acid, caprylic acid, cinnamic acid, citric acid, cyclamic acid, dodecylsulfuric acid, ethane-1,2-disulfonic acid, ethanesulfonic acid, 2-hydroxy-ethanesulfonic acid, formic acid, fumaric acid, galactaric acid, gentisic acid, glucoheptonic acid, D-gluconic acid, D-glucuronic
  • Representative bases which may be used in the preparation of pharmaceutically acceptable salts include, but are not limited to, the following: ammonia, L-arginine, benethamine, benzathine, calcium hydroxide, choline, deanol, diethanolamine, diethylamine, 2-(diethylamino)-ethanol, ethanolamine, ethylenediamine, N-methyl-glucamine, hydrabamine, 1H-imidazole, L-lysine, magnesium hydroxide, 4-(2-hydroxyethyl)-morpholine, piperazine, potassium hydroxide, 1-(2-hydroxyethyl)-pyrrolidine, sodium hydroxide, triethanolamine, tromethamine and zinc hydroxide.
  • a suitably substituted compound of formula (X) a known compound or compound prepared by known methods, is reacted with a suitably selected alcohol of the formula A 1 OH, wherein A 1 is C 1-4 alkyl, in the presence of a suitably selected acid such as H 2 SO 4 , p-toluenesuffonic acid, HCl, and the like; in a suitably selected solvent such as methanol, ethanol, and the like; to yield the corresponding compound of formula (XI).
  • a suitably selected alcohol of the formula A 1 OH wherein A 1 is C 1-4 alkyl
  • a suitably selected acid such as H 2 SO 4 , p-toluenesuffonic acid, HCl, and the like
  • a suitably selected solvent such as methanol, ethanol, and the like
  • the compound of formula (XI) is reacted with 2,4-difluoro-1-nitrobenzene, a known compound, in the presence of a suitably selected base such as KOt-Bu, LiHMDS, NaHMDS, NaOt-Bu, and the like; in a suitably selected solvent such as THF, DME, and the like; to yield the corresponding compound of formula (XII).
  • a suitably selected base such as KOt-Bu, LiHMDS, NaHMDS, NaOt-Bu, and the like
  • a suitably selected solvent such as THF, DME, and the like
  • PG 1 is a suitably selected nitrogen protecting group such as Boc, alloc, and the like; a known compound or compound prepared by known methods, in the presence of a suitably selected base such as DIPEA, TEA, pyridine, and the like; in a suitably selected solvent such as acetonitrile, DMSO, DMF, and the like; at a temperature in the range of from about 60° C. to about 100° C., for example at about 85° C.; to yield the corresponding compound of formula (XIV).
  • a suitably selected nitrogen protecting group such as Boc, alloc, and the like
  • a suitably selected base such as DIPEA, TEA, pyridine, and the like
  • a suitably selected solvent such as acetonitrile, DMSO, DMF, and the like
  • the compound of formula (XIV) is hydrogenated according to known methods, for example, by reacting with H 2 gas, in the presence of Raney nickel catalyst or Pd/C catalyst, in a suitably selected solvent or mixture of solvents such as methanol/THF or ethanol/THF; to yield the corresponding compound of formula (XV).
  • the compound of formula (XV) is reacted with a suitably substituted compound of formula (XVI), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as DCM, DCE, and the like; to yield the corresponding compound of formula (XVII).
  • a suitably substituted compound of formula (XVI) a known compound or compound prepared by known methods
  • a suitably selected base such as TEA, DIPEA, pyridine, and the like
  • a suitably selected solvent such as DCM, DCE, and the like
  • the compound of formula (XVII) is reacted with a suitably selected acid such as acetic acid, and the like; neat or in a suitably selected solvent; at a temperature in the range of from about 80° C. to about reflux temperature, for example at about 120° C., to yield the corresponding compound of formula (XVIII).
  • a suitably selected acid such as acetic acid, and the like
  • a suitably selected solvent such as acetic acid, and the like
  • the compound of formula (XV) is reacted with a suitably substituted compound of formula (XXXIX), a known compound or compound prepared by known methods; in the presence of air; in a suitably selected solvent such as DMSO, and the like; at a temperature in the range of from about room temperature to about 75° C., for example at about 50° C., to yield the corresponding compound of formula (XVIII).
  • a suitably substituted compound of formula (XXXIX) a known compound or compound prepared by known methods
  • a suitably selected solvent such as DMSO, and the like
  • the compound of formula (XVIII) is reacted with a suitably selected base such as NaOH, LiOH, and the like; in a suitably selected solvent or mixture of solvents such as methanol/THF, ethanol/THF, and the like; to yield the corresponding compound of formula (XIX).
  • a suitably selected base such as NaOH, LiOH, and the like
  • a suitably selected solvent or mixture of solvents such as methanol/THF, ethanol/THF, and the like
  • the compound of formula (XIX) is reacted with DBU; in a suitably selected solvent such as toluene, and the like; at a temperature in the range of from about 75° C. to about reflux temperature, for example, at about 90° C.; to yield the corresponding compound of formula (XX).
  • the desired compound of formula (I) may be prepared by further reacting the corresponding compound of formula (XVIII), as described in Scheme 2 below.
  • PG 1 is a suitably selected nitrogen protecting group such as Boc, alloc and the like; is de-protected according to known methods, (for example, wherein PG 1 is Boc, the compound of formula (XVIII) is reacted with a suitably selected acid such as TFA, HCl, and the like, in a suitably selected solvent such as 1,4-dioxane, DCM, DCE, and the like; to yield the corresponding compound of formula (XXI).
  • a suitably selected nitrogen protecting group such as Boc, alloc and the like
  • the compound of formula (XXI) is reacted with a suitably substituted compound of formula (XXII), wherein LG 1 is a suitably selected leaving group such as, Cl (for example, wherein the compound of formula (XXII) is an acyl chloride or a sulfonyl chloride), Br, and the like, a known compound or compound prepared by known methods; according to known methods; to yield the corresponding compound of formula (XXIII).
  • LG 1 is a suitably selected leaving group such as, Cl (for example, wherein the compound of formula (XXII) is an acyl chloride or a sulfonyl chloride), Br, and the like, a known compound or compound prepared by known methods; according to known methods; to yield the corresponding compound of formula (XXIII).
  • the compound of formula (XXII) is an acyl chloride or a sulfonyl chloride
  • the compound of formula (XXI) is reacted with the compound of formula (XXII) in the presence of a base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as DCM, DCE, THF, and the like.
  • the compound of formula (XXII) is for example an optionally substituted phenyl bromide, and the like; the compound of formula (XXI) is reacted with the compound of formula (XXII); in the presence of a suitably selected catalyst such as Pd 2 (dba) 3 , Pd(OAc) 2 , and the like; in the presence of a suitably selected ligand such as dppf, XantPhos, XPhos, and the like; in the presence of a suitably selected base such as Cs 2 CO 3 , K 2 CO 3 , K 3 PO 4 , and the like; in a suitably selected organic solvent such as 1,4-dioxane, toluene, THF, DME, and the like; at an elevated temperature in the range of from about 75° C. to about 150° C.
  • a suitably selected catalyst such as Pd 2 (dba) 3 , Pd(OAc) 2 , and the like
  • the compound of formula (XXIII) is reacted with a suitably selected base such as NaOH, LiOH, and the like; in a suitably selected solvent or mixture of solvents such as methanol/THF, ethanol/THF, and the like; to yield the corresponding compound of formula (XXIV).
  • a suitably selected base such as NaOH, LiOH, and the like
  • a suitably selected solvent or mixture of solvents such as methanol/THF, ethanol/THF, and the like
  • the compound of formula (XXIV) is reacted with DBU, and the like; in a suitably selected solvent such as toluene, and the like; at a temperature in the range of from about 75° C. to about reflux temperature; to yield the corresponding compound of formula (XXV).
  • the compound of formula (XVIIIa) is reacted with a suitably substituted base such as NaOH, LiOH, and the like; in a suitably selected solvent such as a mixture of methanol/THF, ethanol/THF, and the like; to yield the corresponding compound wherein the R 0 —C(O)OA 1 ester group is converted to acid (—C(O)OH).
  • This intermediate is then reacted with DBU; in a suitably selected solvent such as toluene, and the like; at a temperature in the range of from about 75° C. to about reflux temperature, for example, at about 90° C.; to yield the corresponding compound wherein the R 0 acid group (—C(O)OH) is removed, such that R 0 is hydrogen, a compound of formula (XVIII-ALT).
  • Compounds of formula (I) wherein R 0 is —CH 2 OH may be prepared from the corresponding compound of formula (XVIII), wherein R 0 is CO 2 A 1 by reduction.
  • a suitably substituted compound of formula (XVIIIa) is reacted with a suitably selected reducing agent such as LAH, and the like; in a suitably selected solvent such as THF, DME, and the like; to yield the corresponding compound wherein the —CO 2 A 1 ester at the R 0 position is converted to —CH 2 OH.
  • the resulting compound is then substituted for the compound of formula (XVIIIa) in Scheme 2 and reacted as described therein, to yield the desired compound of formula (I).
  • Compounds of formula (I) wherein R 0 is —CH 2 —O—(C 1-2 alkyl) may be prepared by reacting a suitably substituted compound of formula (I) wherein R 0 is —CH 2 OH with a suitably selected alkylating agent such as CH 31 (for the corresponding methyl ether) or CH 3 CH 2 I (for the corresponding ethyl ether), in the presence of a suitably selected base such as NaH, KOt-Bu, NaOt-Bu, and the like; in a suitably selected solvent such as DMF, THF, and the like.
  • a suitably selected alkylating agent such as CH 31 (for the corresponding methyl ether) or CH 3 CH 2 I (for the corresponding ethyl ether)
  • a suitably selected base such as NaH, KOt-Bu, NaOt-Bu, and the like
  • solvent such as DMF, THF, and the like.
  • Compound of formula (I) wherein R 0 is —CH 2 —O—(C 1-2 alkyl)-CO 2 H may be prepared by reacting a suitably substituted compound of formula (I) wherein R 0 is —CH 2 OH with a suitably selected C 3-4 alken-1-yl bromide, a known compound or compound prepared by known methods; in the presence of a suitably selected base such as KOt-Bu, NaOt-Bu, and the like; in a suitably selected solvent such as DMSO, THF, DMF, and the like; to yield the corresponding intermediate compound, wherein the —CH 2 —OH at the R 0 position is converted to the corresponding —CH 2 —O—(CH 2 ) 1-2 —CH—CH 2 group.
  • This intermediate is then reacted with a suitably selected oxidizing agent such as a mixture of NaIO 4 and RuCl 3 , and the like; in a suitably selected solvent or mixture of solvent such as a mixture of acetonitrile, DCM and water to yield the corresponding compound of formula (I) wherein R 0 is —CH 2 —O—(C 1-2 alkyl)-CO 2 H.
  • a suitably selected oxidizing agent such as a mixture of NaIO 4 and RuCl 3 , and the like
  • solvent or mixture of solvent such as a mixture of acetonitrile, DCM and water
  • Q 3 is selected from the group consisting of R 4 , —C(O)OA 2 and —NH-PG 2 , wherein A 2 is selected from the group consisting of C 1-4 alkyl, and wherein PG 2 is a suitably selected nitrogen protecting group, is substituted for the compound of formula (XIII) and reacted as described in Scheme 1 to yield the corresponding compound of formula (XVIII), formula (XIX) and formula (XX), wherein the Q 1 group is replaced with corresponding
  • R 4 is selected from the group consisting of —NH-(optionally substituted phenyl) and —NH—SO 2 -(optionally substituted phenyl).
  • Q 3 is —C(O)OA 2
  • Q 3 is —C(O)OA 2
  • the alkyl ester i.e. —C(O)OA 2
  • the corresponding acid group i.e. —C(O)OH
  • the acid group i.e. —C(O)OH
  • a compound of the formula NHR G R H a known compound or compound prepared by known methods
  • a suitably selected coupling agent such as HATU, DIC, EDCl, and the like
  • a suitably selected base such as DIPEA, TEA, pyridine, and the like
  • a suitably selected solvent such as DMF, DCM, THF and the like
  • L 3 is —CH 2 CH 2 —O—
  • L 3 is —CH 2 CH 2 —O—
  • a suitably substituted compound of formula (XII) with 2-hydroxyethylamine, a known compound, to yield the corresponding compound of formula (XIV), wherein the —NH-Q 1 group is replaced with —NH—CH 2 CH 2 —OH.
  • This intermediate is then reacted as described in Scheme 1 to yield the corresponding compound of formula (XX), wherein the Q 1 group is replaced with —CH 2 CH 2 —OH, a compound of formula (CXX)
  • L 3 is —CH 2 CH 2 —O—, respectively.
  • thiazol-2-yl may alternatively be prepared as described in Scheme 3, below.
  • a suitably substituted compound of formula (XXX), wherein each HAL 1 is independently selected from F or Cl, a known compound or compound prepared by known methods, is reacted with a suitably substituted compound of formula (XXXI), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as DIPEA, TEA, pyridine, and the like; in a suitably selected solvent such as DMSO, acetonitrile, and the like; to yield the corresponding compound of formula (XXXII).
  • a suitably selected base such as DIPEA, TEA, pyridine, and the like
  • a suitably selected solvent such as DMSO, acetonitrile, and the like
  • the compound of formula (XXXII) is reacted with a suitably substituted compound of formula (XXXIII), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as KOt-Bu, NaOt-Bu, and the like; in a suitably selected solvent such as THF, i-PrOH, and the like; to yield the corresponding compound of formula (XXXIV).
  • a suitably selected base such as KOt-Bu, NaOt-Bu, and the like
  • a suitably selected solvent such as THF, i-PrOH, and the like
  • the compound of formula (XXXIV) is reacted with P 2 S 5 , a known compound; in a suitably selected solvent such as ethanol, methanol, and the like; to yield the corresponding compound of formula (XXXV).
  • the compound of formula (XXIV) is reacted with H 2 S; in the presence of a base such as TEA; in a suitably selected solvent such as pyridine, and the like; to yield the corresponding compound of formula (XXXV).
  • R 1 is hydrogen
  • thiazolyl ring as defined herein, a known compound or compound prepared by known methods; in the presence of a suitably selected acid such as acetic acid, and the like; at a temperature in the range of from about 50° C. to about 120° C., for example at about 100° C.; to yield the corresponding compound of formula (XXXVI) wherein
  • the compound of formula (XXXVI) is reacted with hydrogen (preferably hydrogen gas); in the presence of a suitably selected catalyst, such as Raney nickel or Pd/C; in a suitably selected solvent or mixture of solvents such as ethanol, THF, and the like; to yield the corresponding compound of formula (XXXVIII).
  • hydrogen preferably hydrogen gas
  • a suitably selected catalyst such as Raney nickel or Pd/C
  • a suitably selected solvent or mixture of solvents such as ethanol, THF, and the like
  • the compound of formula (XXXVIII) is reacted with a suitably substituted compound of formula (XXXIX), a known compound or compound prepared by known methods; in a suitably selected solvent such as DMSO, and the like; in air; at a temperature in the range of from about 20° C. to about 50° C.; to yield the corresponding compound of formula (Ib).
  • R 2 is hydrogen
  • the compound of formula (XXXVIII) is reacted with triethylorthoformate, a known compound; in the presence of an acid such as conc HCl, and the like; neat; at a temperature in the range of from about 75° C. to about 150° C., for example, at about 125° C.
  • R 2 is methyl
  • the compound of formula (XXXVIII) is reacted with trimethylorthoacetate, a known compound; in the presence of an acid such as conc HCl, and the like; neat; at a temperature in the range of from about 75° C. to about reflux temperature.
  • a suitably selected base such as KOt-Bu, NaOt-Bu, and the like
  • solvent such as THF, i-PrOH, and the like
  • the compound of formula (XLI) is reacted with t-BuONO, NaNO 2 , and the like, a known compound; in the presence of a suitably selected source of chlorine such as CuCl 2 , CuCl, and the like; in a suitably selected solvent such as acetonitrile, water, and the like; to yield the corresponding compound of formula (XLII).
  • a suitably selected source of chlorine such as CuCl 2 , CuCl, and the like
  • a suitably selected solvent such as acetonitrile, water, and the like
  • the reaction of the compound of formula (XLI) may alternative be carried out in the presence of a source of bromide such as CuBr 2 , and the like; to yield the corresponding compound of formula (XLII) wherein the Cl is replaced with a Br.
  • the compound of formula (XLII) is reacted with a suitably substituted compound of formula (XLIII), wherein M 3 is H or Br, a known compound or compound prepared by known methods; in the presence of a suitably selected lithiating agent such as n-BuLi, t-BuLi, and the like; in a suitably selected solvent or mixture of solvents such as hexanes, THF, DME, and the like; to yield the corresponding compound of formula (XLIV).
  • a suitably selected lithiating agent such as n-BuLi, t-BuLi, and the like
  • solvent or mixture of solvents such as hexanes, THF, DME, and the like
  • the compound of formula (XLII) is reacted with a suitably substituted compound of formula (XLIII), wherein M 3 is MgBr or MgCl, a known compound or compound prepared by known methods; under Grignard conditions, to yield the corresponding compound of formula (XLIV).
  • the compound of formula (XLIV) is reacted with a suitably substituted compound of formula (XXXI), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as KF, K 2 CO 3 , DIPEA, and the like; in a suitably selected solvent such as DMSO, DMF, and the like; to yield the corresponding compound of formula (XLV).
  • a suitably substituted compound of formula (XXXI) a known compound or compound prepared by known methods
  • a suitably selected base such as KF, K 2 CO 3 , DIPEA, and the like
  • a suitably selected solvent such as DMSO, DMF, and the like
  • the compound of formula (XLV) is reacted with a suitably selected reducing agent such as SnCl 2 , and the like; in the presence of a suitably selected acid such as acetic acid, conc. HCl, and the like; in water; at a temperature in the range of from about 20° C. to about 60° C., for example, at about 50° C.; to yield the corresponding compound of formula (XLVI).
  • a suitably selected reducing agent such as SnCl 2 , and the like
  • a suitably selected acid such as acetic acid, conc. HCl, and the like
  • water at a temperature in the range of from about 20° C. to about 60° C., for example, at about 50° C.; to yield the corresponding compound of formula (XLVI).
  • the compound of formula (XLVI) is reacted with a suitably substituted compound of formula (XXXIX), a known compound or compound prepared by known methods; in air; in a suitably selected solvent such as DMSO, and the like; to yield the corresponding compound of formula (Ic).
  • a known compound or compound prepared as described herein is reacted with N,O-dimethylhydroxylamine, a known compound; in the presence of a suitably selected base such as LiHMDS, NaHMDS, and the like; in a suitably selected solvent such as THF, DME, and the like; to yield the corresponding compound of formula (XLVIII).
  • a suitably selected base such as LiHMDS, NaHMDS, and the like
  • a suitably selected solvent such as THF, DME, and the like
  • the compound of formula (L) is reacted with a suitably substituted compound of formula (LI), where M 2 is I, a known compound or compound prepared by known methods; in the presence of magnesium; in the presence of 12, in a suitably selected solvent such as THF; to yield the corresponding compound of formula (LII).
  • the compound of formula (L) is reacted with a suitably substituted compound of formula (LI) wherein M 2 is MgBr or MgCl; under Grignard conditions; to yield the corresponding compound of formula (LII).
  • the compound of formula (L) is reacted with a suitably substituted compound of formula (LI) wherein M 2 is Li; according to known methods; to yield the corresponding compound of formula (LII).
  • the compound of formula (LII) is reacted with Et 3 SiH in combination with TFA or SnCl 2 in combination with HCl or TiCl 4 ; in a suitably selected organic solvent such as DCM, DCE, and the like; to yield the corresponding compound of formula (LIII), wherein Q 2 is selected from the group consisting of —R 3 ,
  • the desired compounds of formula (I) may be prepared by further reacting the compound of formula (LIII), as described in more detail hereinafter (for example by reacting with a suitably substituted alkylating reagent, with a suitably selected acid chloride, a suitably selected sulfonyl chloride, and the like).
  • the compound of formula (LIV) is hydrogenated by reacting with, for example hydrogen gas, in the presence of a suitably selected catalyst such as Raney nickel, Pd/C, and the like; in a suitably selected solvent or mixture of solvents such as methanol/THF, ethanol/THF, and the like; to yield the corresponding compound of formula (LV).
  • a suitably selected catalyst such as Raney nickel, Pd/C, and the like
  • a suitably selected solvent or mixture of solvents such as methanol/THF, ethanol/THF, and the like
  • the compound of formula (LV) is reacted with a suitably substituted compound of formula (XVI), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as DCM, THF, and the like; to yield the corresponding compound of formula (LVI).
  • a suitably substituted compound of formula (XVI) a known compound or compound prepared by known methods
  • a suitably selected base such as TEA, DIPEA, pyridine, and the like
  • a suitably selected solvent such as DCM, THF, and the like
  • the compound of formula (LVI) is reacted with a suitably selected acid such as acetic acid; neat; at a temperature in the range of from about 60° C. to about 150° C., for example at about 120° C.; to yield the corresponding compound of formula (LVII), wherein Q 2 is selected from the group consisting of —R 3 ,
  • the compound of formula (LV) is reacted with a suitably substituted compound of formula (XXXIX), a known compound or compound prepared by known methods; in air; in a suitably selected solvent such as DMSO, and the like; to yield the corresponding compound of formula (LVII).
  • a suitably substituted compound of formula (XXXIX) a known compound or compound prepared by known methods; in air; in a suitably selected solvent such as DMSO, and the like; to yield the corresponding compound of formula (LVII).
  • the compound of formula (LVII) is then further reacted, according to known methods, to protect the nitrogen atom of the Q 1 group, as needed or desired.
  • the compound of formula (LVII) may be reacted with BOC anhydride, in the presence of a base such as NaHCO 3 , and the like, in a solvent such as DCM, and the like; to yield the corresponding compound of formula (XLVII), wherein PG 1 is BOC.
  • a suitably substituted compound of formula (XI) is reacted with a suitably substituted compound of formula (LVIII), a known compound or compound prepared by known methods; in the presence of a base such as LiHMDS, NaHMDS, and the like; in a suitably selected solvent such as 1,4-dioxane, THF, and the like; to yield the corresponding compound of formula (LIX).
  • a base such as LiHMDS, NaHMDS, and the like
  • a suitably selected solvent such as 1,4-dioxane, THF, and the like
  • the compound of formula (LIX) is reacted with a suitably selected sodium alkoxide (NaOA 3 ) or potassium alkoxide (KOA 3 ), wherein A 3 is a C 1-4 alkyl and wherein —OA 3 corresponds to the desired R 1 alkoxy group; in a suitably selected solvent such as DMF, THF, and the like; to yield the corresponding compound of formula (LX).
  • a suitably selected sodium alkoxide NaOA 3
  • KOA 3 potassium alkoxide
  • a 3 is a C 1-4 alkyl and wherein —OA 3 corresponds to the desired R 1 alkoxy group
  • a suitably selected solvent such as DMF, THF, and the like
  • R 2 group may be incorporated into the compound of formula (I) as a single substituent group (as described in the Schemes above and the examples which follow hereinafter) or may alternatively, be incorporated into the compound of formula (I) via two or more reaction steps.
  • R 2 group may be incorporated into the desired compound of formula (I) as described in Scheme 8, below.
  • a suitably substituted compound of formula (LXI), prepared according to the processes as herein described is reacted with a suitably substituted R 2 containing reagent, a compound of formula (LXII); to yield the corresponding compound of formula (LXIII) (a compound of formula (I) wherein R 1 and R 0 are each hydrogen).
  • the compound of formula (LXII) corresponds to a suitably substituted aldehyde (wherein X is —CHO); and the compound of formula (LXI) is reacted with the compound of formula (LXII) in air; in a suitably selected solvent such as DMSO, and the like; to yield the corresponding compound of formula (LXIII).
  • the compound of formula (LXII) corresponds to a suitably substituted acid (wherein X is —C(O)OH); and the compound of formula (LXI) is reacted with the compound of formula (LXII), in the presence of a suitably selected acid such as TFA, and the like; neat in a suitably selected solvent; to yield the corresponding compound of formula (LXIII).
  • a suitably selected acid such as TFA, and the like
  • the compound of formula (LXII) corresponds to R 2 —C(OCH 3 ) 3 , wherein R 2 is C 1-4 alkyl, and the compound of formula (LXI) is reacted with the compound of formula (LXII) in the presence of a suitably selected acid such as HCl; neat or in a suitably selected solvent; to yield the corresponding compound of formula (LXIII).
  • a suitably selected acid such as HCl
  • a suitably selected solvent such as HCl
  • compounds of formula (I) wherein R 2 is hydrogen may be similarly prepared from the compound of formula (LXI) with a compound of the formula H—C(OCH 3 ) 3 , as described above.
  • Compounds of formula (I) wherein R 2 is NH 2 may be similarly prepared by reacting a suitably substituted compound of formula (LXI) with cyanogen bromide, a known compound; in a suitably selected solvent such as ethanol, methanol, and the like; to yield the corresponding compound of formula (LXIII) wherein R 2 is NH 2 .
  • Compounds of formula (I) wherein R 2 is NR E R F (and wherein one or both of R E and R F are selected C 1-4 alkyl) may be similarly prepared by reacting a suitably substituted compound of formula (LXI) with 1,1,-carbonyldiimidazole, a known compound; in a suitably selected solvent such as THF, DCM, and the like; to yield the corresponding compound of formula (LXIII) wherein R 2 group is replaced with a ⁇ O group; which compound is then reacted with a suitably selected source of chlorine such as POCl 3 , and the like; neat or in a suitably selected solvent; at a temperature in the range of from about 50° C.
  • R 2 group may be incorporated into the desired compound of formula (I) as a complete substituent group, or may alternatively be incorporated via two or more reaction steps.
  • R 2 is —CH 2 CH 2 —NH 2
  • a compound of formula (LXIII) wherein R 2 is —CH 2 CH 2 —C(O)O—CH 2 CH 3 may be prepared as described herein and then reacted with a suitably selected base such as NaOH, and the like, according to known methods; to yield the corresponding compound wherein the ester is converted to the corresponding acid (i.e. R 2 is —CH 2 CH 2 —C(O)OH).
  • This compound may then be further reacted in a mixture of DPPA, TEA, benzene, according to known methods, to yield the corresponding compound wherein R 2 is —CH 2 CH 2 —NH 2 . Additional transformations would be readily known to those skilled in the art, and are further described in specific examples which follow hereinafter.
  • the compound of formula (LXIV) is reacted with a compound of formula (LXV), a suitably substituted sulfonyl chloride, wherein LG 3 is chloro; in the presence of a suitably selected base such as K 2 CO 3 , Na 2 CO 3 , TEA, DIPEA, pyridine, and the like; to yield the corresponding compound of formula (Ie) wherein R 5 is a substituent group bound through a sulfonyl (i.e. —SO 2 —) group.
  • the compound of formula (LXIV) is reacted with a compound of formula (LXV), a suitably substituted phenyl bromide, and the like, wherein LG 3 is bromo; in the presence of a suitably selected catalyst such as Pd 2 (dba) 3 , Pd(OAc) 2 , and the like; in the presence of a suitably selected ligand such as dppf, XantPhos, XPhos, and the like; in the presence of a suitably selected base such as Cs 2 CO 3 , K 2 CO 3 , K 3 P 04 , and the like; in a suitably selected organic solvent such as 1,4-dioxane, toluene, THF, DME, and the like; at an elevated temperature in the range of from about 75° C. to about 150° C.; to yield the corresponding compound of formula (Ie) wherein R 5 is the corresponding optionally substituted phenyl, and the like.
  • a suitably selected catalyst
  • the compound of formula (LXIV) is reacted with a compound of formula (LXV), a suitably substituted C 1-4 alkyl bromide, and the like, wherein LG 3 is bromo; in the presence of a suitably selected base such as Hunig's base, K 2 CO 3 , and the like; in a suitably selected solvent such as acetonitrile, and the like; to yield the corresponding compound of formula (Ia) wherein R 5 is the corresponding optionally substituted C 1-4 alkyl, and the like.
  • a suitably selected base such as Hunig's base, K 2 CO 3 , and the like
  • solvent such as acetonitrile
  • the compound of formula (LXIV) is reacted with a compound of formula (LXV), a suitably substituted aldehyde, wherein LG 3 is ⁇ O; in the presence of a suitably selected reducing agent such as NaBH(OAc) 3 , and the like; in a suitably selected solvent such as DCE, methanol, ethanol, and the like; to yield the corresponding compound of formula (Ia).
  • a suitably selected reducing agent such as NaBH(OAc) 3
  • solvent such as DCE, methanol, ethanol, and the like
  • the carbon atom of the aldehyde of formula (LXV) is incorporated into the R 5 substituent group as a —CH 2 — (for example wherein the compound of formula (LXV) is an optionally substituted phenyl aldehyde, then the resulting R 5 substituent group is the corresponding, optionally substituted benzyl group.)
  • the compound of formula (LXIV) is reacted with a suitably substituted isocyanate, in the presence of a suitably selected base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as DCM, THF, DMF, and the like; to yield the corresponding compound wherein the R 5 group is bound through a —C(O)—NH— group.
  • the compound of formula (LXIV) is reacted with a suitably substituted chloroformate, in the presence of a suitably selected base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as THF, and the like; to yield the corresponding compound wherein the R 5 group is bound through a —C(O)—O— group.
  • a suitably selected base such as TEA, DIPEA, pyridine, and the like
  • a suitably selected solvent such as THF, and the like
  • the compound of formula (LXIV) is reacted with CDI, a known compound; in the presence of a suitably selected base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as DCM, THF, and the like; to yield the corresponding compound wherein the R 5 group replaced with —C(O)-imidazol-1-yl; which compound is further reacted with a suitably substituted alcohol or amine; in the presence of a suitably selected base such as Cs 2 CO 3 , K 2 CO 3 , TEA, DIPEA, and the like; in a suitably selected solvent such as DMF, acetonitrile, and the like; to yield the corresponding compound wherein the R 5 group is bound through —C(O)—O— or a —C(O)—NH— group, respectively.
  • a suitably selected base such as TEA, DIPEA, pyridine, and the like
  • solvent such as DCM, THF,
  • a suitably substituted compound of formula (CLXV), wherein Q 1 is as defined above, a known compound or compound prepared as described herein, is reacted with a suitably substituted compound of formula (LXVI), a known compound or compound prepared by known methods; in the presence of a suitably selected lithiating reagent such as n-BuLi, t-BuLi, and the like; in a suitably selected solvent such as THF, DME, and the like; to yield the corresponding compound of formula (LXXI).
  • a suitably selected lithiating reagent such as n-BuLi, t-BuLi, and the like
  • solvent such as THF, DME, and the like
  • a suitably substituted compound of formula (CLXV), a known compound or compound prepared by known methods is reacted with a suitably substituted compound of formula (LXVII), a known compound or compound prepared by known methods; in the presence of a suitably selected lithiating reagent such as n-BuLi, t-BuLi, and the like; in a suitably selected solvent such as THF, DME, and the like; to yield the corresponding compound of formula (LXVIII).
  • a suitably selected lithiating reagent such as n-BuLi, t-BuLi, and the like
  • solvent such as THF, DME, and the like
  • the compound or formula (LXVIII) is reacted with a suitably selected oxidizing agent such as DMP, and the like; in a suitably selected solvent such as DCM, and the like; to yield the corresponding compound of formula (LXIX).
  • a suitably selected oxidizing agent such as DMP, and the like
  • a suitably selected solvent such as DCM, and the like
  • the compound of formula (LXIX) is reacted with a suitably substituted compound of formula (LXX), wherein M 1 is MgBr or MgCl, a known compound or compound prepared by known methods; under Grignard conditions; to yield the corresponding compound of formula (LXXI).
  • M 1 is MgBr or MgCl
  • MgCl a known compound or compound prepared by known methods
  • Grignard conditions to yield the corresponding compound of formula (LXXI
  • the compound of formula (LXIX) may alternatively be reacted with a compound of formula (LXX) wherein M 1 is replaced with lithium, according to known methods, to yield the corresponding compound of formula (LXXI).
  • a suitably substituted compound of formula (LXXI), wherein Q 1 is as defined above, a known compound or compound prepared by known methods, is reacted with 4-bromo-2-fluoro-1-nitrobenzene, a known compound; in the presence of a suitably selected base such as DIPEA, TEA, pyridine and the like; in a suitably selected solvent such as acetonitrile, DCM, and the like; to yield the corresponding compound of formula (LXXII).
  • a suitably selected base such as DIPEA, TEA, pyridine and the like
  • a suitably selected solvent such as acetonitrile, DCM, and the like
  • the compound of formula (LXXII) is reacted Fe in the presence of NH 4 Cl; in a suitably selected solvent such as methanol, ethanol, and the like; in the presence of water; at a temperature in the range of from about 50° C. to about 100° C., for example at about 80° C.; to yield the corresponding compound of formula (LXXIII).
  • a suitably selected solvent such as methanol, ethanol, and the like
  • water at a temperature in the range of from about 50° C. to about 100° C., for example at about 80° C.
  • alternate reduction conditions for example reacting the compound of formula (LXXII) with H 2 gas in the presence of Raney nickel in a mixture of methanol/THF may also be used to yield the corresponding compound of formula (LXXIII).
  • the compound of formula (LXXIII) is reacted with a suitably substituted compound of formula (XXXIX), a known compound or compound prepared by known methods; in the presence of air; in a suitably selected solvent such as DMSO, and the like; at a temperature in the range of from about room temperature to about 75° C., for example at about 50° C., to yield the corresponding compound of formula (LXVa).
  • a suitably substituted compound of formula (XXXIX) a known compound or compound prepared by known methods
  • a suitably selected solvent such as DMSO, and the like
  • 2-amino-3-nitrophenol a known compound, is reacted with a suitably selected source of bromine such as Br 2 , and the like; in the presence of a suitably selected acid such as acetic acid, and the like; neat or in a suitably selected solvent and the like; to yield 2-amino-5-bromo-3-nitrophenol.
  • a suitably selected source of bromine such as Br 2 , and the like
  • a suitably selected acid such as acetic acid, and the like
  • solvent and the like neat or in a suitably selected solvent and the like
  • the 2-amino-5-bromo-3-nitrophenol is reacted with a suitably selected alkylating agent, according to known methods, to yield the corresponding compound of formula (LXXIV), wherein A 1 is the corresponding C 1-4 alkyl.
  • a suitably selected alkylating agent for example, wherein the compound of formula (LXXIV) A 1 is —CH 3 , the 2-amino-5-bromo-3-nitrophenol may be reacted with CH 31 , in the presence of a base such as K 2 CO 3 , and the like; in a solvent such as DMF, and the like.
  • the compound of formula (LXXIV) is reacted with a suitably substituted compound of formula (XVI), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as DCM, DCE, and the like; to yield the corresponding compound of formula (LXXV).
  • a suitably substituted compound of formula (XVI) a known compound or compound prepared by known methods
  • a suitably selected base such as TEA, DIPEA, pyridine, and the like
  • a suitably selected solvent such as DCM, DCE, and the like
  • the compound of formula (LXXV) is reacted Fe in the presence of NH 4 Cl; in a suitably selected solvent such as methanol, ethanol, and the like; in the presence of water; at a temperature in the range of from about 50° C. to about 100° C., for example at about 80° C.; to yield the corresponding compound of formula (LXXVI).
  • the compound of formula (LXXVI) is reacted with a suitably substituted aldehyde or carbonyl compound, according to known methods or methods as described in the Schemes and Examples herein; to yield the corresponding compound of formula (LXXVII), wherein Q 1 is as defined herein.
  • the compound of formula (LXXVI) may be reacted with 1-((trifluoromethyl)sulfonyl)piperidin-4-one, in the presence of NaBH(OAc) 3 , in the presence of acetic acid, in DCE, to yield the corresponding compound of formula (LXXVII) wherein Q 1 is 1-trifluoromethyl-sulfonyl-piperidin-4-yl.
  • the 2-amino-5-bromo-3-nitrophenol may alternatively be reacted with (CH 3 ) 3 Si—CH 2 CH 2 —O—CH 2 Cl, a known compound, in the presence of a suitably selected base such as K 2 CO 3 , Na 2 CO 3 , and the like; in a suitably selected solvent such as DMF, acetonitrile, and the like; to yield the corresponding compound of formula (LXXIV) wherein the —OA 1 group is replaced with —O—CH 2 —O—CH 2 CH 2 —Si(CH 3 ) 3 . Said intermediate is then reacted as described in Scheme 12 above to yield the corresponding compound of formula (CLXV)
  • the compound of formula (CLXV) may then be reacted according to the procedures as described in the Schemes and Examples herein to yield the corresponding compound of formula (I) wherein the R 1 group is replaced with —O—CH 2 —O—CH 2 CH 2 —Si(CH 3 ) 3 , which compound is then de-protected according to known methods, to yield the desired compound of formula (I) wherein R 1 is hydroxy.
  • R 5 substituent group may alternatively be incorporated into the desired compound of formula (I) via multiple reaction steps, according to known methods, and as exemplified for representative compounds in the Synthesis Examples which follow hereinafter.
  • substituent groups as defined herein may be similarly incorporated into the desired compound of formula (I) via one or more coupling reactions and/or substituent transformations (e.g. removal of an alkyl group, conversion of a —CO 2 H group to corresponding —C(O)NH 2 group, hydrogenation, reductive amination, nucleophilic substitution, Suzuki coupling, Mitsunobu coupling, etc.), according to the methods known in the art, and/or according to procedures as described in the general synthesis schemes and examples herein.
  • substituent transformations e.g. removal of an alkyl group, conversion of a —CO 2 H group to corresponding —C(O)NH 2 group, hydrogenation, reductive amination, nucleophilic substitution, Suzuki coupling, Mitsunobu coupling, etc.
  • the present invention further comprises pharmaceutical compositions containing one or more compounds of formula (I) with a pharmaceutically acceptable carrier.
  • Pharmaceutical compositions containing one or more of the compounds of the invention described herein as the active ingredient can be prepared by intimately mixing the compound or compounds with a pharmaceutical carrier according to conventional pharmaceutical compounding techniques.
  • the carrier may take a wide variety of forms depending upon the desired route of administration (e.g., oral, parenteral).
  • suitable carriers and additives include water, glycols, oils, alcohols, flavoring agents, preservatives, stabilizers, coloring agents and the like;
  • suitable carriers and additives include starches, sugars, diluents, granulating agents, lubricants, binders, disintegrating agents and the like.
  • Solid oral preparations may also be coated with substances such as sugars or be enteric-coated so as to modulate major site of absorption.
  • the carrier will usually consist of sterile water and other ingredients may be added to increase solubility or preservation.
  • injectable suspensions or solutions may also be prepared utilizing aqueous carriers along with appropriate additives.
  • compositions of this invention one or more compounds of the present invention as the active ingredient is intimately admixed with a pharmaceutical carrier according to conventional pharmaceutical compounding techniques, which carrier may take a wide variety of forms depending of the form of preparation desired for administration, e.g., oral or parenteral such as intramuscular.
  • a pharmaceutical carrier may take a wide variety of forms depending of the form of preparation desired for administration, e.g., oral or parenteral such as intramuscular.
  • any of the usual pharmaceutical media may be employed.
  • suitable carriers and additives include water, glycols, oils, alcohols, flavoring agents, preservatives, coloring agents and the like;
  • suitable carriers and additives include starches, sugars, diluents, granulating agents, lubricants, binders, disintegrating agents and the like. Because of their ease in administration, tablets and capsules represent the most advantageous oral dosage unit form, in which case solid pharmaceutical carriers are obviously employed. If desired, tablets may be sugar coated or enteric coated by standard techniques.
  • the carrier will usually comprise sterile water, through other ingredients, for example, for purposes such as aiding solubility or for preservation, may be included.
  • injectable suspensions may also be prepared, in which case appropriate liquid carriers, suspending agents and the like may be employed.
  • the pharmaceutical compositions herein will contain, per dosage unit, e.g., tablet, capsule, powder, injection, teaspoonful and the like, an amount of the active ingredient necessary to deliver an effective dose as described above.
  • compositions herein will contain, per unit dosage unit, e.g., tablet, capsule, powder, injection, suppository, teaspoonful and the like, of from about 0.01 mg to about 1000 mg or any amount or range therein, and may be given at a dosage of from about 0.01 mg/kg/day to about 300 mg/kg/day, or any amount or range therein, preferably from about 0.1 mg/kg/day to about 50 mg/kg/day, or any amount or range therein, preferably from about 0.5 mg/kg/day to about 15 mg/kg/day, or any amount or range therein.
  • the dosages may be varied depending upon the requirement of the patients, the severity of the condition being treated and the compound being employed. The use of either daily administration or post-periodic dosing may be employed.
  • compositions are in unit dosage forms such as tablets, pills, capsules, powders, granules, sterile parenteral solutions or suspensions, metered aerosol or liquid sprays, drops, ampoules, autoinjector devices or suppositories; for oral parenteral, intranasal, sublingual or rectal administration, or for administration by inhalation or insufflation.
  • the composition may be presented in a form suitable for once-weekly or once-monthly administration; for example, an insoluble salt of the active compound, such as the decanoate salt, may be adapted to provide a depot preparation for intramuscular injection.
  • a pharmaceutical carrier e.g.
  • a solid preformulation composition containing a homogeneous mixture of a compound of the present invention, or a pharmaceutically acceptable salt thereof.
  • preformulation compositions as homogeneous, it is meant that the active ingredient is dispersed evenly throughout the composition so that the composition may be readily subdivided into equally effective dosage forms such as tablets, pills and capsules.
  • This solid preformulation composition is then subdivided into unit dosage forms of the type described above containing from about 0.01 mg to about 1,000 mg, or any amount or range therein, of the active ingredient of the present invention.
  • the tablets or pills of the novel composition can be coated or otherwise compounded to provide a dosage form affording the advantage of prolonged action.
  • the tablet or pill can comprise an inner dosage and an outer dosage component, the latter being in the form of an envelope over the former.
  • the two components can be separated by an enteric layer which serves to resist disintegration in the stomach and permits the inner component to pass intact into the duodenum or to be delayed in release.
  • enteric layers or coatings such materials including a number of polymeric acids with such materials as shellac, cetyl alcohol and cellulose acetate.
  • liquid forms in which the novel compositions of the present invention may be incorporated for administration orally or by injection include, aqueous solutions, suitably flavoured syrups, aqueous or oil suspensions, and flavoured emulsions with edible oils such as cottonseed oil, sesame oil, coconut oil or peanut oil, as well as elixirs and similar pharmaceutical vehicles.
  • Suitable dispersing or suspending agents for aqueous suspensions include synthetic and natural gums such as tragacanth, acacia, alginate, dextran, sodium carboxymethylcellulose, methylcellulose, polyvinyl-pyrrolidone or gelatin.
  • the method of treating disorders described herein may also be carried out using a pharmaceutical composition comprising any of the compounds as defined herein and a pharmaceutically acceptable carrier.
  • the pharmaceutical composition may contain between about 0.01 mg and about 1000 mg of the compound, or any amount or range therein; preferably from about 1.0 mg to about 500 mg of the compound, or any amount or range therein, and may be constituted into any form suitable for the mode of administration selected.
  • Carriers include necessary and inert pharmaceutical excipients, including, but not limited to, binders, suspending agents, lubricants, flavorants, sweeteners, preservatives, dyes, and coatings.
  • compositions suitable for oral administration include solid forms, such as pills, tablets, caplets, capsules (each including immediate release, timed release and sustained release formulations), granules, and powders, and liquid forms, such as solutions, syrups, elixirs, emulsions, and suspensions.
  • forms useful for parenteral administration include sterile solutions, emulsions and suspensions.
  • compounds of the present invention may be administered in a single daily dose, or the total daily dosage may be administered in divided doses of two, three or four times daily.
  • compounds for the present invention can be administered in intranasal form via topical use of suitable intranasal vehicles, or via transdermal skin patches well known to those of ordinary skill in that art.
  • the dosage administration will, of course, be continuous rather than intermittent throughout the dosage regimen.
  • the active drug component can be combined with an oral, non-toxic pharmaceutically acceptable inert carrier such as ethanol, glycerol, water and the like.
  • suitable binders include, without limitation, starch, gelatin, natural sugars such as glucose or beta-lactose, corn sweeteners, natural and synthetic gums such as acacia, tragacanth or sodium oleate, sodium stearate, magnesium stearate, sodium benzoate, sodium acetate, sodium chloride and the like.
  • Disintegrators include, without limitation, starch, methyl cellulose, agar, bentonite, xanthan gum and the like.
  • the liquid forms may contain suitably flavored suspending or dispersing agents such as the synthetic and natural gums, for example, tragacanth, acacia, methyl-cellulose and the like.
  • suspending or dispersing agents such as the synthetic and natural gums, for example, tragacanth, acacia, methyl-cellulose and the like.
  • sterile suspensions and solutions are desired.
  • Isotonic preparations which generally contain suitable preservatives are employed when intravenous administration is desired.
  • a compound of formula (I) as the active ingredient is intimately admixed with a pharmaceutical carrier according to conventional pharmaceutical compounding techniques, which carrier may take a wide variety of forms depending of the form of preparation desired for administration (e.g. oral or parenteral).
  • a pharmaceutical carrier may take a wide variety of forms depending of the form of preparation desired for administration (e.g. oral or parenteral).
  • Suitable pharmaceutically acceptable carriers are well known in the art. Descriptions of some of these pharmaceutically acceptable carriers may be found in The Handbook of Pharmaceutical Excipients , published by the American Pharmaceutical Association and the Pharmaceutical Society of Great Britain.
  • Compounds of the present invention may be administered in any of the foregoing compositions and according to dosage regimens established in the art whenever treatment of metabolic disorders is required.
  • the daily dosage of the products may be varied over a wide range from about 0.01 mg to about 1,000 mg per adult human per day, or any amount or range therein.
  • the compositions are preferably provided in the form of tablets containing, 0.01, 0.05, 0.1, 0.5, 1.0, 2.5, 5.0, 10.0, 15.0, 25.0, 50.0, 100, 150, 200, 250 and 500 milligrams of the active ingredient for the symptomatic adjustment of the dosage to the patient to be treated.
  • An effective amount of the drug is ordinarily supplied at a dosage level of from about 0.01 mg/kg to about 300 mg/kg of body weight per day, or any amount or range therein.
  • the range is from about 0.01 to about 50.0 mg/kg of body weight per day, or any amount or range therein. More preferably, from about 0.05 to about 15.0 mg/kg of body weight per day, or any amount or range therein. More preferably, from about 0.07 to about 7.5 mg/kg of body weight per day, or any amount or range therein.
  • the compounds may be administered on a regimen of 1 to 4 times per day.
  • Optimal dosages to be administered may be readily determined by those skilled in the art, and will vary with the particular compound used, the mode of administration, the strength of the preparation, the mode of administration, and the advancement of the disease condition. In addition, factors associated with the particular patient being treated, including patient age, weight, diet and time of administration, will result in the need to adjust dosages.
  • Step 1 Synthesis of methyl 2,2-bis(4-chlorophenyl)acetate
  • Step 2 Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate
  • Step 3 Synthesis of tert-butyl 4-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-nitrophenyl]amino)piperidine-1-carboxylate
  • Step 4 Synthesis of tert-butyl 4-([2-amino-5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]phenyl]amino)piperidine-1-carboxylate
  • Step 5 Synthesis of tert-butyl 4-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropaneamidophenyl]amino)piperidine-1-carboxylate
  • Step 6 Synthesis of tert-butyl 4-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate
  • Step 7 Synthesis of 2-(1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-2-cyclopropyl-1H-1,3-benzodiazol-6-yl)-2,2-bis(4-chlorophenyl)acetic acid
  • Step 8 Synthesis of tert-butyl 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate
  • Step 10 Synthesis of 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoic acid
  • the product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Column, Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH 3 CN (45% CH 3 CN up to 65% in 8 min, up to 100% in 9 min, down to 45% in 10 min; Detector, UV 254 nm to yield 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoic acid as a white solid.
  • Step 1 Synthesis of ethyl 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-4-oxobutanoate
  • Step 2 Synthesis of 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-4-oxobutanamide
  • the product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% NH 4 HCO 3 and CH 3 CN (30% CH 3 CN up to 80% in 7 min, up to 100% in 9 min, down to 65% in 11 min); Detector, UV 254 nm to yield 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-4-oxobutanamide as a white solid.
  • the product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH 3 CN (50% CH 3 CN up to 70% in 5 min, up to 100% in 7 min, down to 50% in 9 min); Detector, UV 254 nm to yield 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzamide trifluoroacetic acid as a white solid.
  • Step 1 Synthesis of 3-(4-[6-(bis (4-chlorophenyl) methyl]-2-cyclopropyl-1H-1, 3-benzodiazol-1-yl piperidine-1-sulfonyl) benzoic acid
  • Step 2 Synthesis of 3-(4-[6-[bis (4-chlorophenyl) methyl]-2-cyclopropyl-1H-1, 3-benzodiazol-1-yl] piperidine-1-sulfonyl) benzamide trifluoroacetic acid
  • the product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH 3 CN (40% CH 3 CN up to 60% in 6 min, up to 100% in 8 min, down to 55% in 10 min); Detector, UV 254 nm to yield 3-(4-[6-[bis (4-chlorophenyl) methyl]-2-cyclopropyl-1H-1, 3-benzodiazol-1-yl] piperidine-1-sulfonyl) benzamide trifluoroacetic acid as a white solid.
  • Step 1 Synthesis of 6-[bis (4-chlorophenyl) methyl]-2-cyclopropyl-1-[1-[(3-methoxybenzene) sulfonyl] piperidin-4-yl]-1H-1, 3-benzodiazole
  • Step 2 Synthesis of 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)phenol trifluoroacetic acid
  • the product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH 3 CN (50% CH 3 CN up to 65% in 6 min, up to 100% in 2 min, down to 50% in 2 min); Detector, UV 254 nm to yield 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)phenol trifluoroacetic acid as a white solid.
  • Step 1 Synthesis of methyl 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoate
  • Step 2 Synthesis of 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoic acid
  • Step 3 Synthesis of 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzamide trifluoroacetic acid
  • the product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH 3 CN (40% CH 3 CN up to 50% in 6 min, up to 100% in 7 min, down to 40% in 8 min); Detector, UV254 nm to yield 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzamide trifluoroacetic acid as a white solid.
  • Step 1 Synthesis of ethyl 2-[4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)phenoxy]acetate
  • Step 2 Synthesis of 2-[4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)phenoxy]acetamide; trifluoroacetic acid
  • the product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH 3 CN (30% CH 3 CN up to 55% in 10 min, up to 100% in 12 min, down to 50% in 14 min; Detector, UV 254 nm to yield 2-[4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)phenoxy]acetamide; trifluoroacetic acid as an off-white solid.
  • Step 1 Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate
  • Step 2 Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)acetate
  • Step 3 Synthesis of methyl 2-(4-amino-3-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)-2,2-bis(4-chlorophenyl)acetate
  • Step 4 Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-(4-propanamido-3-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)acetate
  • Step 5 Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-[2-ethyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazol-6-yl]acetate
  • Step 6 Synthesis of 2,2-bis(4-chlorophenyl)-2-[2-ethyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazol-6-yl]acetic acid
  • Step 7 Synthesis of 6-[bis(4-chlorophenyl)methyl]-2-ethyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazole hydrochloride
  • Step 1 Synthesis of 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)-2-oxoethyl acetate
  • Step 2 Synthesis of 1-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)-2-hydroxyethanone
  • Step 1 Synthesis of methyl 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-3-oxopropanoate
  • Step 2 Synthesis of 1-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-3-hydroxypropan-1-one trifluoroacetic acid
  • Step 1 Synthesis of methyl 2-chloro-4-(chlorosulfonyl)benzoate
  • Step 2 Synthesis of methyl 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-chlorobenzoate
  • Step 3 Synthesis of 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-chlorobenzoic acid in a mixture with the corresponding trifluoroacetic acid
  • the resulting solution was extracted with ethyl acetate (3 ⁇ 50 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum.
  • the product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18, 5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH 3 CN (22% CH 3 CN up to 55% in 8 min); Detector, UV 254 nm. 50 mL product was obtained. The CH 3 CN was evaporated and HCl (conc., 1 mL) was added.
  • the title compound was prepared according to the procedure as described in Example PH-10 substituting 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)picolinic acid for 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)benzoic acid.

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Abstract

The present invention is directed to benzimidazole derivatives, pharmaceutical compositions containing them and their use in the treatment of disorders and conditions mediated by the CB-1 receptor, more particularly, use in the treatment of disorders and conditions responsive to inverse agonism of the CB-1 receptor. More particularly, the compounds of the present invention are useful in the treatment of metabolic disorders.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • This application is a divisional of U.S. application Ser. No. 15/244,372, filed on Aug. 23, 2016, which claims priority from U.S. Provisional Application 62/209,381, filed on Aug. 25, 2015, and U.S. Provisional Application 62/233,655, filed on Sep. 28, 2015 which is incorporated by reference herein in its entirety.
    • FIELD OF THE INVENTION
  • The present invention is directed to benzimidazole derivatives, pharmaceutical compositions containing them and their use in the treatment of disorders and conditions mediated by the CB-1 receptor, more particularly, use in the treatment of disorders and conditions responsive to inverse agonism of the CB-1 receptor. More particularly, the compounds of the present invention are useful in the treatment of metabolic disorders.
    • BACKGROUND OF THE INVENTION
  • Centrally penetrant cannabanoid-1 receptor (CB1) inverse agonist compounds are efficacious for weight loss, glycemic control and treatment of cardiovascular risk factors associated with obesity and/or Type II diabetes mellitus. However such compounds are also associated with serious adverse effects such as anxiety, depression, suicidal ideation, and others, which adverse effects preclude their use. Peripherally restricted cannabanoid-1 receptor (CB1R) inverse agonists aim to selectively inhibit the CB1R in organs/tissues outside the blood-brain barrier, for example in the liver, adipose tissue and/or skeletal muscle, to avoid these adverse effects.
  • Thus, there is a need for peripherally restricted cannabanoid-1 receptor (CB1R) inverse agonists for the treatment of, for example metabolic disorders, such as obesity, Type II diabetes mellitus, metabolic syndrome, Syndrome X, and the like.
    • SUMMARY OF THE INVENTION
  • The present invention is directed to compounds of formula (I)
  • Figure US20190031618A1-20190131-C00001
  • wherein
  • R0 is selected from the group consisting of hydrogen, —OH, —C(O)OH, —C(O)O—(C1-4alkyl), —CH2—OH, —CH2—O—(C1-2alkyl) and —CH2—O—(C1-2alkyl)-CO2H;
  • Figure US20190031618A1-20190131-C00002
  • is selected from the group consisting of cylopropyl, cyclobutyl, cyclopentyl, cyclohexyl, phenyl, furyl, thienyl, thiazolyl, benzothiazolyl and benzo[d][1,3]dioxolyl;
  • wherein the phenyl, furyl, thienyl, thiazolyl or benzothiazolyl is optionally substituted with one or more substituents independently selected from the group consisting of halogen, hydroxy, C1-4alkyl, fluorinated C1-2alkyl, C1-4alkoxy, fluorinated C1-2alkoxy, cyano, —C(O)OH, —C(O)O—(C1-4alkyl), —C(O)NRARB and NRARB; wherein RA and RB are each independently selected from the group consisting of hydrogen, alkyl and hydroxy substituted C1-2alkyl; provided that each substituent is bound to a carbon atom;
  • Figure US20190031618A1-20190131-C00003
  • is selected from the group consisting of cylopropyl, cyclobutyl, cyclopentyl, cyclohexyl, phenyl, furyl, thienyl, thiazolyl, benzothiazolyl and benzo[d][1,3]dioxolyl;
  • wherein the phenyl, furyl, thienyl, thiazolyl or benzothiazolyl is optionally substituted with one or more substituents independently selected from the group consisting of halogen, hydroxy, C1-4alkyl, fluorinated C1-2alkyl, C1-4alkoxy, fluorinated C1-2alkoxy, cyano, —C(O)OH, —C(O)O—(C1-4alkyl), —C(O)NRCRD and NRCRD; wherein RC and RD are each independently selected from the group consisting of hydrogen, alkyl and hydroxy substituted C1-2alkyl; provided that each substituent is bound to a carbon atom;
  • R1 is selected from the group consisting of hydrogen, hydroxy and C1-4alkoxy;
  • R2 is selected from the group consisting of hydrogen, halogen, C1-4alkyl, fluorinated C1-2alkyl, —(C1-2alkyl)-OH, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-NRERF, —(C2-4alkenyl)-OH, —C(O)OH, —C(O)O—(C1-2alkyl), —NRERF, C3-6cycloalkyl, phenyl, furyl, thienyl, pyridyl, azetidin-3-yl, oxetan-3-yl, tetrahydrofuran-2-yl and tetrahydropyran-4-yl;
  • wherein the phenyl is optionally substituted with one to two halogen; wherein the azetidin-3-yl is optionally substituted with —C(O)O—(C1-4alkyl); and wherein RE and RF are each independently selected from the group consisting of hydrogen and C1-4alkyl;
  • provided that when R2 is selected from the group consisting of pyridyl, furyl and thienyl, then the R2 is bound to the benzimidazole core through a carbon atom;
  • R3 is selected from the group consisting of (a) through (k); wherein
  • (a) is
  • Figure US20190031618A1-20190131-C00004
  • wherein R4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)O—(C1-2alkyl), —C(O)NRGRH, —NH-(phenyl), and —NH—SO2-(phenyl); wherein the phenyl is optionally substituted with one or more substituents independently selected from the group consisting of halogen, hydroxy and carboxy; and wherein RG and RH are each independently selected from the group consisting of hydrogen and C1-4alkyl;
  • (b) is
  • Figure US20190031618A1-20190131-C00005
  • (c) is
  • Figure US20190031618A1-20190131-C00006
  • (d) is
  • Figure US20190031618A1-20190131-C00007
  • (e) is
  • Figure US20190031618A1-20190131-C00008
  • (f) is
  • Figure US20190031618A1-20190131-C00009
  • wherein a is an integer from 0 to 1;
  • wherein L1 is selected from the group consisting of —CH2—, —CH2—CH2, —CH2CH2CH2—, —CH(CH3)CH2— and —CH2—CH(CH3)—;
  • wherein R5 is selected from the group consisting of hydrogen, C1-2alkyl, fluorinated C1-2alkyl, C2-4alkenyl, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C2-3alkyl)-O-(phenyl), —C(O)—(C1-2alkyl)-OH, —C(O)—(C1-2alkyl)-C(O)OH, —C(O)—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—(C1-2alkyl)-C(O)—NH2, —C(O)OH, —C(O)O—(C1-4alkyl), —C(O)O—(C3-5cycloalkyl), —C(O)—NRJRK, —C(O)NH—(C3-5cycloalkyl), —C(O)NH-(phenyl), —C(O)NH—(C1-2alkyl)-(phenyl), —SO2—(C1-2alkyl), —SO2-(fluorinated C1-2alkyl), —SO2—(C1-2alkyl)-C(O)OH, —SO2—(C1-2alkyl)-C(O)O—(C1-2alkyl), —SO2—NRJRK, —SO2—(C1-2alkyl)-C(O)NRJRK, phenyl, —(C1-3alkyl)-phenyl, —C(O)-(phenyl), —C(O)O-(phenyl), —C(O)O—(C1-2alkyl)-(phenyl), —SO2-(phenyl), pyrimidin-2-yl, pyridyl, —(C1-2alkyl)-pyridyl, —C(O)-(pyridyl), —SO2-(pyridyl), furyl, —(C1-2alkyl)-furyl, —C(O)— furyl, —SO2-(furyl), thienyl, —(C1-2alkyl)-thienyl, —C(O)-thienyl, —SO2-(thienyl), —C(O)-(1,2,3-triazol-4-yl), —C(O)-(1,2,4,-triazol-3-yl) and —SO2—(C1-2alkyl)-(piperazin-1-yl);
  • wherein the phenyl, pyrimidin-2-yl, pyridyl, furyl, thienyl or pyridyl, is optionally substituted with one or more substituents independently selected from the group consisting of halogen, hydroxy, C1-4alkyl, fluorinated C1-2alkyl, —(C1-2alkyl)-OH, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C1-2alkyl)-C(O)—NRLRM, —O—(C1-4alkyl), —O-(fluorinated C1-2alkyl), —O—(C2-6alkenyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)O—(C1-2alkyl), —O—(C1-2alkyl)-C(O)NRLRM, —O—(C1-2alkyl)-C(O)—NRLRM, —C(O)OH, —C(O)O—(C1-4alkyl), —C(O)—NRLRM, —C(O)—NH—(C1-3alkyl)-OH, —C(O)—NH—(C1-2alkyl)-C(O)OH, —C(O)—NH—(C1-2alkyl)-C(O)O—(C1-2alkyl), —NRLRM and —SO2—NRLRM;
  • wherein RJ and RK are each independently selected from the group consisting of hydrogen and C1-4alkyl; and wherein RL and RM are each independently selected from the group consisting of hydrogen and C1-4alkyl;
  • (g) is
  • Figure US20190031618A1-20190131-C00010
  • wherein b is an integer from 0 to 1;
  • wherein L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—, —CH(CH3)—CH2—, —CH2—CH(CH3)—, —CH2CH2—O—, —CH2—CH(OH)—, —CH(CH3)—CH(OH) and —CH2CH2CH2—NH—SO2—;
  • wherein R6 is selected from the group consisting of hydrogen, halogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, C1-2alkoxy, fluorinated C1-2alkoxy, —C(O)OH, —C(O)O—(C1-2alkyl), —O—(C1-2alkyl)-O—(C1-2alkyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—NRNRP, —O—(C1-2alkyl)-C(O)—NRNRP, phenyl, furyl and thienyl; wherein the phenyl, furyl or thienyl is optionally substituted with a substituent selected from the group consisting of halogen, C1-4alkyl and carboxy; and wherein RN and RP are each independently selected from the group consisting of hydrogen and C1-4alkyl;
  • wherein R7 is selected from the group consisting of hydrogen, halogen, hydroxy, C1-4alkyl, fluorinated C1-2alkyl, C1-4alkoxy, fluorinated C1-2alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl);
  • (h) is
  • Figure US20190031618A1-20190131-C00011
  • wherein L3 is selected from the group consisting of —CH2—, —CH2CH2—, —CH2CH2CH2—, —CH(CH3)CH2—, —CH2CH(CH3)— and —CH2CH2—O—;
  • wherein R8 is selected from the group consisting of hydrogen, halogen, C1-4alkyl, C1-4alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl);
  • (i) is
  • Figure US20190031618A1-20190131-C00012
  • wherein c is an integer from 0 to 1;
  • and wherein L4 is selected from the group consisting of —CH2— and —CH2—CH2—;
  • (j) is
  • Figure US20190031618A1-20190131-C00013
  • and (k) is
  • Figure US20190031618A1-20190131-C00014
  • and stereoisomers, tautomers and pharmaceutically acceptable salts thereof.
  • The present invention is further directed to a compound of formula (II)
  • Figure US20190031618A1-20190131-C00015
  • and stereoisomers, tautomers and pharmaceutically acceptable salts thereof.
  • The present invention is further directed to processes for the preparation of the compounds of formula (I) and the compound of formula (II). The present invention is further directed to a product prepared according to any of the process(es) described herein.
  • The present invention is further directed to intermediate compounds useful in the synthesis of the compounds of formula (I) and the compound of formula (II), as described and defined in the synthesis schemes and examples which follow herein.
  • Illustrative of the invention is a pharmaceutical composition comprising a pharmaceutically acceptable carrier and the product prepared according to the process described herein. An illustration of the invention is a pharmaceutical composition made by mixing the product prepared according to the process described herein and a pharmaceutically acceptable carrier. Illustrating the invention is a process for making a pharmaceutical composition comprising mixing the product prepared according to the process described herein and a pharmaceutically acceptable carrier.
  • Exemplifying the invention are methods of treating a disorder mediated by the CB-1 receptor (selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain) comprising administering to a subject in need thereof a therapeutically effective amount of any of the compounds or pharmaceutical compositions described above.
  • In an embodiment, the present invention is directed to a compound of formula (I) for use as a medicament. In another embodiment, the present invention is directed to a compound of formula (I) or compound of formula (II) for use in the treatment of a disorder mediated by the CB-1 receptor (selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain). In another embodiment, the present invention is directed to a composition comprising a compound of formula (I) or compound of formula (II) for the treatment of a disorder mediated by the CB-1 receptor (selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain).
  • Another example of the invention is the use of any of the compounds described herein in the preparation of a medicament for treating: (a) obesity, (b) Type I diabetes, (c) Type II diabetes, (d) gestational diabetes, (e) latent autoimmune diabetes of adults (LADA), (f) pre-diabetes, (g) insulin resistance, (h) inadequate glucose tolerance, (i) dyslipidemia (including, but not limited to elevated triglycerides and LDL, and low HDL), (j) nonalcoholic steatohepatitis (NASH), (k) cirrhosis, (I) fatty liver disease, (m) atherosclerosis, (n) hypertension, (o) inflammatory bowel disease, (p) Alzheimer's disease, (q) osteoporosis, (r) multiple sclerosis, (s) traumatic brain injury, (t) arthritis, or (u) neuropathic pain, in a subject in need thereof. In another example, the present invention is directed to a compound as described herein for use in method for treating a disorder selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain, in a subject in need thereof.
  • In additional embodiments the present invention is as described herein.
    • DETAILED DESCRIPTION OF THE INVENTION
  • The present invention is directed to compounds of formula (I)
  • Figure US20190031618A1-20190131-C00016
  • wherein
  • Figure US20190031618A1-20190131-C00017
  • R0, R1, R2 and R3 are as herein defined; and stereoisomers, tautomers and pharmaceutically acceptable salts thereof. The present invention is further directed to a compound of formula (II)
  • Figure US20190031618A1-20190131-C00018
  • (also known as N-(2-(2-(benzyloxy)ethoxy)ethyl)-3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)aniline) and stereoisomers, tautomers and pharmaceutically acceptable salts thereof.
  • The compounds of formula (I) and the compound of formula (II) of the present invention are CB-1 receptor inverse agonists, useful in the treatment of metabolic disorders, including but not limited to obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein R0 is selected from the group consisting of hydrogen, —OH, —C(O)OH, —C(O)O—(C1-2alkyl), —CH2—OH, —CH2—O—(C1-2alkyl) and —CH2—O—(C1-2alkyl)-CO2H. In another embodiment, the present invention is directed to compounds of formula (I) wherein R0 is selected from the group consisting of hydrogen, —OH, —C(O)OH, —C(O)O—(C1-2alkyl), —CH2—OH, —CH2—O—(C1-2alkyl) and —CH2—O—(C1-2alkyl)-CO2H. In another embodiment, the present invention is directed to compounds of formula (I) wherein R0 is selected from the group consisting of hydrogen, —OH, —C(O)OH, —C(O)OCH3, —CH2—OH, —CH2—OCH3 and —CH2—OCH2—CO2H. In another embodiment, the present invention is directed to compound of formula (I) wherein R0 is selected from the group consisting of hydrogen and —OH. In another embodiment, the present invention is directed to compound of formula (I) wherein R0 is selected from the group consisting of hydrogen, —C(O)OH and —C(O)OCH3. In another embodiment, the present invention is directed to compound of formula (I) wherein R0 is selected from the group consisting of hydrogen, —OH, —CH2OH and —CH2—OCH3. In another embodiment, the present invention is directed to compound of formula (I) wherein R0 is hydrogen.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein R0 is selected from the group consisting of hydrogen, —OH, —CO2H, —C(O)OCH3 and —CH2OCH3. In another embodiment, the present invention is directed to compounds of formula (I) wherein R0 is selected from the group consisting of hydrogen, —OH, —CO2H and —C(O)OCH3. In another embodiment, the present invention is directed to compounds of formula (I) wherein R0 is selected from the group consisting of hydrogen, —OH and —CO2H. In another embodiment, the present invention is directed to compounds of formula (I) wherein R0 is selected from the group consisting of hydrogen and —OH.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00019
  • is selected from the group consisting of phenyl, thiazolyl and benzo[d][1,3]dioxolyl; wherein the phenyl or thiazolyl is optionally substituted with one to two substituents independently selected from the group consisting of halogen C1-4alkyl, fluorinated C1-2alkyl, C1-2alkoxy, fluorinated C1-2alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl). In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00020
  • is phenyl; wherein the phenyl is optionally substituted a substituent independently selected from the group consisting of halogen and C1-2alkoxy.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00021
  • is selected from the group consisting of phenyl, 2-chlorophenyl, 4-chlorophenyl and 4-methoxyphenyl. In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00022
  • is selected from the group consisting of 4-chlorophenyl and 4-methoxyphenyl.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00023
  • is selected from the group consisting of 4-chlorophenyl, 4-fluorophenyl, 4-methylphenyl and 4-methoxyphenyl. In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00024
  • is selected from the group consisting of 4-chlorophenyl, 4-fluorophenyl and 4-methylphenyl. In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00025
  • is 4-chlorophenyl.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00026
  • is selected from the group consisting of phenyl, thiazolyl and benzo[d][1,3]dioxolyl; wherein the phenyl or thiazolyl is optionally substituted with one to two substituents independently selected from the group consisting of halogen C1-4alkyl, fluorinated C1-2alkyl, C1-2alkoxy, fluorinated C1-2alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl). In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00027
  • is selected from the group consisting of phenyl, thiazol-2-yl and benzo[d][1,3]dioxol-5-yl; wherein the phenyl or thiazol-2-yl is optionally substituted with a substituent selected from the group consisting of halogen, C1-4alkyl, fluorinated C1-2alkyl, C1-2alkoxy and —C(O)OH.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00028
  • is selected from the group consisting of phenyl, 4-chlorophenyl, 4-fluorophenyl, 4-methylphenyl, 4-trifluoromethyl-phenyl, 4-carboxyphenyl, 4-methoxyphenyl, thiazol-2-yl, 4-ethyl-thiazol-2-yl, 5-ethyl-thiazol-2-yl, 4-t-butyl-thiazol-2-yl, 4-trifluoromethyl-thiazol-2-yl and benzo[d][1,3]dioxol-5-yl. In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00029
  • is selected from the group consisting of 4-chlorophenyl, 4-methoxyphenyl and thiazol-2-yl.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00030
  • is selected from the group consisting of phenyl, 4-chlorophenyl, 4-fluorphenyl, 4-methylphenyl, 4-trifluoromethyl-phenyl, 4-methoxyphenyl, 4-carboxyphenyl, thiazol-2-yl and benzo[d][1,3]dioxol-5-yl. In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00031
  • is selected from the group consisting of phenyl, 4-chlorophenyl, 4-fluorphenyl, 4-methylphenyl, 4-trifluoromethyl-phenyl, thiazol-2-yl and benzo[d][1,3]dioxol-5-yl. In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00032
  • is selected from the group consisting of 4-chlorophenyl, thiazol-2-yl and benzo[d][1,3]dioxol-5-yl. In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00033
  • is 4-chlorophenyl.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein R1 is selected from the group consisting of hydrogen, hydroxy and C1-2alkoxy. In another embodiment, the present invention is directed to compounds of formula (I) wherein R1 is selected from the group consisting of hydrogen, hydroxy and methoxy. In another embodiment, the present invention is directed to compounds of formula (I) wherein R1 is selected from the group consisting of hydroxy and methoxy. In another embodiment, the present invention is directed to compounds of formula (I) wherein R1 is selected from the group consisting of hydrogen and methoxy. In another embodiment, the present invention is directed to compounds of formula (I) wherein R1 is hydrogen.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein R2 is selected from the group consisting of hydrogen, halogen, C1-4alkyl, fluorinated C1-2alkyl, —(C1-2alkyl)-OH, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-NH2, —(C2-4alkenyl)-OH, —C(O)O—(C1-2alkyl), —NRERF, C3-5cycloalkyl, phenyl, furyl, thienyl, pyridyl, oxetan-3-yl, azetidin-3-yl, tetrahydrofuran-2-yl and tetrahydropyran-4-yl; wherein the phenyl is optionally substituted with one to two halogen; wherein the azetidin-3-yl is optionally substituted with —C(O)O—(C1-4alkyl); and wherein RE and RF are each independently selected from the group consisting of hydrogen and C1-4alkyl; provided that when R2 is selected from the group consisting of pyridyl, furyl and thienyl, then the R2 is bound to the benzimidazole core through a carbon atom. In another embodiment, the present invention is directed to compounds of formula (I) wherein R2 is selected from the group consisting of hydrogen, halogen, C1-4alkyl, fluorinated C1-2alkyl, —(C1-2alkyl)-OH, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-NH2, —(C2-4alkenyl)-OH, —C(O)O—(C1-2alkyl), —NRERF, C3-6cycloalkyl, phenyl, fur-2-yl, fur-3-yl, thien-3-yl, pyrid-2-yl, pyrid-3-yl, pyrid-4-yl, oxetan-3-yl, azetidin-3-yl, tetrahydrofuran-2-yl and tetrahydro-pyran-4-yl; wherein the phenyl is optionally substituted with one to two halogen; wherein the azetidin-3-yl is optionally substituted with —C(O)O—(C1-4alkyl); and wherein RE and RF are each independently selected from the group consisting of hydrogen, methyl and ethyl.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R2 is selected from the group consisting of hydrogen, chloro, methyl, ethyl, n-propyl, isopropyl, isobutyl, t-butyl, —CHF2, —CF3, —CH2—CF3, —CH2OH, —CH2CH2—C(O)OH, —CH2CH2—NH2, —C(═CH2)—CH2OH, —C(O)OCH3, —C(O)OCH2CH3, —NH2, —N(CH3)2, cyclopropyl, cyclobutyl, cyclopentyl, oxetan-3-yl, azetidin-3-yl, 1-(t-butoxycarbonyl)-azetidin-3-yl, tetrahydrofuran-2-yl, tetrahydro-pyran-4-yl, 4-chlorophenyl, 2,4-dichlorophenyl, pyrid-2-yl, pyrid-3-yl, pyrid-4-yl, fur-2-yl, fur-3-yl and thien-3-yl. In another embodiment, the present invention is directed to compounds of formula (I) wherein R2 is selected from the group consisting of ethyl, cyclopropyl and cyclobutyl. In another embodiment, the present invention is directed to compounds of formula (I) wherein R2 is selected from the group consisting of ethyl and cyclopropyl. In another embodiment, the present invention is directed to compounds of formula (I) wherein R2 is cyclopropyl.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein R2 is selected from the group consisting of hydrogen, methyl, ethyl, cyclopropyl, cyclobutyl, amino-ethyl-, —C═(CH2)—CH2OH, oxetan-3-yl, tetrahydrofur-2-yl and pyrid-3-yl. In another embodiment, the present invention is directed to compounds of formula (I) wherein R2 is selected from the group consisting of hydrogen, methyl, ethyl, cyclopropyl, cyclobutyl, oxetan-3-yl and tetrahydrofur-2-yl. In another embodiment, the present invention is directed to compounds of formula (I) wherein R2 is selected from the group consisting of ethyl, cyclopropyl, cyclobutyl, oxetan-3-yl and tetrahydrofur-2-yl. In another embodiment, the present invention is directed to compounds of formula (I) wherein R2 is selected from the group consisting of cyclopropyl, cyclobutyl and tetrahydrofur-2-yl.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein R3 is selected from the group consisting of (a) through (k); wherein
  • (a) is
  • Figure US20190031618A1-20190131-C00034
  • wherein R4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)O—(C1-2alkyl), —C(O)NRGRH, —NH-(phenyl), and —NH—SO2-(phenyl); wherein the phenyl is optionally substituted with hydroxy or carboxy; and wherein RG and RH are each independently selected from the group consisting of hydrogen and methyl;
    (b) is
  • Figure US20190031618A1-20190131-C00035
  • (c) is
  • Figure US20190031618A1-20190131-C00036
  • (d) is
  • Figure US20190031618A1-20190131-C00037
  • (e) is
  • Figure US20190031618A1-20190131-C00038
  • (f) is
  • Figure US20190031618A1-20190131-C00039
  • wherein a is an integer from 0 to 1; wherein L1 is selected from the group consisting of —CH2—, —CH2—CH2, —CH(CH3)CH2— and —CH2—CH(CH3)—; wherein R5 is selected from the group consisting of hydrogen, C1-2alkyl, fluorinated C1-2alkyl, C2-4alkenyl, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C2alkyl)-O-(phenyl), —C(O)—(C1-2alkyl)-OH, —C(O)—(C1-2alkyl)-C(O)OH, —C(O)—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—(C1-2alkyl)-C(O)—NH2, —C(O)O—(C1-4alkyl), —C(O)O—(C3-5cycloalkyl), —C(O)O-(phenyl), —C(O)O—CH2-(phenyl), —C(O)—NH2, —C(O)NH—(C1-2alkyl), —C(O)NH—(C3-5cycloalkyl), —C(O)NH-(phenyl), —C(O)NH—(C1-2alkyl)-(phenyl), —SO2—(C1-2alkyl), —SO2-(fluorinated C1-2alkyl), —SO2—(C1-2alkyl)-C(O)OH, —SO2—(C1-2alkyl)-C(O)O—(C1-2alkyl), —SO2—NH2, —SO2—NH—(C1-2alkyl), —SO2—(C1-2alkyl)-C(O)NH2, phenyl, —(C1-3alkyl)-phenyl, —C(O)-(phenyl), —C(O)O-(phenyl), —C(O)O—(C1-2alkyl)-(phenyl), —SO2-(phenyl), pyrimidin-2-yl, pyrid-2-yl, pyrid-3-yl, —(C1-2alkyl)-pyrid-2-yl, —(C1-2alkyl)-pyrid-3-yl, —(C1-2alkyl)-fur-2-yl, —(C1-2alkyl)-thien-2-yl, —C(O)-fur-2-yl, —C(O)-thien-2-yl, —C(O)-(pyrid-3-yl), —C(O)-(1,2,3-triazol-4-yl), —C(O)-(1,2,4,-triazol-3-yl), —SO2—(C1-2alkyl)-(piperazin-1-yl), —SO2-(fury-2-yl), —SO2-(thien-2-yl) and —SO2-(pyrid-3-yl); wherein the phenyl, pyrimidin-2-yl, pyridyl, furyl, thienyl or pyridyl, is optionally substituted with one to three substituents independently selected from the group consisting of halogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, —(C1-2alkyl)-OH, —C(1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —O—(C1-2alkyl), —O-(fluorinated C1-2alkyl), —O—(C2-6alkenyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)NH2, —C(O)OH, —C(O)O—(C1-4alkyl), —C(O)—NH2, —C(O)—NH—(C1-2alkyl), —C(O)—NH—(C1-3alkyl)-OH, —C(O)—NH—(C1-2alkyl)-C(O)OH, —C(O)—NH—(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C1-2alkyl)-C(O)—NH2, —O—(C1-2alkyl)-C(O)—NH2, —O—(C1-2alkyl)-C(O)OH, —NH2, —NH(C1-2alkyl), —SO2—NH2 and —SO2—NH(C1-2alkyl);
  • (g) is
  • Figure US20190031618A1-20190131-C00040
  • wherein b is an integer from 0 to 1; wherein L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—, —CH(CH3)—CH2—, —CH2—CH(CH3)—, —CH2CH2—O—, —CH2—CH(OH)—, —CH(CH3)—CH(OH) and —CH2CH2CH2—NH—SO2—; wherein R6 is selected from the group consisting of hydrogen, halogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, C1-2alkoxy, fluorinated C1-2alkoxy, —C(O)OH, —C(O)O—(C1-2alkyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—NH2, —O—(C1-2alkyl)-C(O)—NH2, phenyl, furyl and thienyl; wherein the phenyl, furyl or thienyl is optionally substituted with carboxy; and wherein R7 is selected from the group consisting of hydrogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, C1-2alkoxy, fluorinated C1-2alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl);
  • (h) is
  • Figure US20190031618A1-20190131-C00041
  • wherein L3 is selected from the group consisting of —CH2—, —CH2CH2— and —CH2CH2—O—; and wherein R8 is selected from the group consisting of hydrogen, -halogen, C1-2alkyl, C1-2alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl);
  • (i) is
  • Figure US20190031618A1-20190131-C00042
  • wherein c is an integer from 0 to 1; and wherein L4 is selected from the group consisting of —CH2— and —CH2—CH2—;
  • (j) is
  • Figure US20190031618A1-20190131-C00043
  • and (k) is
  • Figure US20190031618A1-20190131-C00044
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is selected from the group consisting of (a) through (k); wherein
  • (a) is
  • Figure US20190031618A1-20190131-C00045
  • wherein R4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)NRGRH, —NH-(phenyl) and —NH—SO2-(phenyl); wherein the phenyl is optionally substituted with hydroxy or carboxy; wherein RG and RH are each independently selected from the group consisting of hydrogen and methyl;
    (b) is
  • Figure US20190031618A1-20190131-C00046
  • (c) is
  • Figure US20190031618A1-20190131-C00047
  • (d) is
  • Figure US20190031618A1-20190131-C00048
  • (e) is
  • Figure US20190031618A1-20190131-C00049
  • (f) is
  • Figure US20190031618A1-20190131-C00050
  • wherein a is an integer from 0 to 1; and wherein L1 is selected from the group consisting of —CH2— and —CH2—CH(CH3)—; wherein R5 is selected from the group consisting of hydrogen, C2-4alkenyl, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C2alkyl)-O-(phenyl), —C(O)—(C1-2alkyl)-OH, —C(O)—(C1-2alkyl)-C(O)OH, —C(O)—(C1-2alkyl)-C(O)—NH2, —C(O)O—(C1-4alkyl), —C(O)O-(hydroxy substituted C1-4alkyl), —C(O)O—(C3-5cycloalkyl), —C(O)NH—(C1-2alkyl), —C(O)NH—(C3-5cycloalkyl), —C(O)NH-(phenyl), —C(O)NH—(C1-2alkyl)-(phenyl), —SO2—(C1-2alkyl), —SO2-(fluorinated C1-2alkyl), —SO2—(C1-2alkyl)-C(O)OH, —SO2—NH2, —SO2—NH—(C1-2alkyl), —SO2—(C1-2alkyl)-C(O)NH2, phenyl, —(C1-3alkyl)-phenyl, —C(O)-(phenyl), —C(O)O-(phenyl), —C(O)O—(C1-2alkyl)-(phenyl), —SO2-(phenyl), pyrimidin-2-yl, —(C1-2alkyl)-pyrid-2-yl, —(C1-2alkyl)-pyrid-3-yl, —(C1-2alkyl)-fur-2-yl, —(C1-2alkyl)-thien-2-yl, —C(O)-(pyrid-3-yl), —C(O)-(1,2,3-triazol-4-yl), —C(O)-(1,2,4,-triazol-3-yl), —SO2—(C1-2alkyl)-(piperazin-1-yl), —SO2-(fury-2-yl), —SO2-(thien-2-yl) and —SO2-(pyrid-3-yl); wherein the phenyl is optionally substituted with one to three substituents independently selected from the group consisting of halogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, —O—(C1-2alkyl), —O-(fluorinated C1-2alkyl), —O—(C2-6alkenyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)NH2, —C(O)OH, —C(O)O—(C1-2alkyl), —C(1-2alkyl)-C(O)OH, —C(O)—NH2, —C(O)—NH—(C1-2alkyl), —C(O)—NH—(C1-3alkyl)-OH, —C(O)—NH—(C1-2alkyl)-C(O)OH, —C(O)—NH—(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C1-2alkyl)-C(O)—NH2, —O—(C1-2alkyl)-C(O)—NH2, —O—(C1-2alkyl)-C(O)OH, —NH2 and —SO2—NH2; and wherein the pyrimidin-2-yl, pyrid-2-yl, pyrid-3-yl, fur-2-yl or thien-2-yl is optionally substituted with one to two substituents independently selected from the group consisting of C1-2alkyl, —(C1-2alkyl)-OH, —C(O)OH, —C(O)O—(C1-2alkyl), —C(O)—NH2, —C(O)NH—(C1-2alkyl)-OH, —C(O)NH—(C1-2alkyl)-C(O)OH and —C(O)NH—(C1-2alkyl)-C(O)O—(C1-2alkyl);
  • (g) is
  • Figure US20190031618A1-20190131-C00051
  • wherein b is an integer from 0 to 1; and wherein L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—, —CH(CH3)—CH2—, —CH2—CH(CH3)—, —CH2CH2—O—, —CH2—CH(OH)—, —CH(CH3)—CH(OH) and —CH2CH2CH2—NH—SO2—; wherein R6 is selected from the group consisting of hydrogen, halogen, hydroxy, C1-2alkoxy, fluorinated C1-2alkyl, —C(O)OH, —C(O)O—(C1-2alkyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—NH2, —O—(C1-2alkyl)-C(O)—NH2, phenyl and thienyl; wherein the phenyl or thienyl is optionally substituted with carboxy; and wherein R7 is selected from the group consisting of hydrogen and fluorinated C1-2alkyl;
  • (h) is
  • Figure US20190031618A1-20190131-C00052
  • wherein L3 is selected from the group consisting of —CH2— and —CH2CH2—O—; and wherein R8 is selected from the group consisting of hydrogen, —C(O)OH and —C(O)O—(C1-2alkyl);
  • (i) is
  • Figure US20190031618A1-20190131-C00053
  • wherein c is an integer from 0 to 1; wherein L4 is —CH2—;
  • (j) is
  • Figure US20190031618A1-20190131-C00054
  • and (k) is
  • Figure US20190031618A1-20190131-C00055
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is selected from the group consisting of (a) through (k); wherein
  • (a) is
  • Figure US20190031618A1-20190131-C00056
  • wherein R4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)NH2, —NH—SO2-(3-carboxyphenyl), —NH-(3-hydroxyphenyl), —NH-(3-carboxyphenyl), —NH-(4-carboxyphenyl) and —NH—SO2-(4-carboxyphenyl); and wherein the cyclohexyl is bound to the benzimidazole core in a cis-, trans- or racemic stereo-orientation;
  • (b) is
  • Figure US20190031618A1-20190131-C00057
  • wherein a 0; and wherein R5 is selected from the group consisting of 3-carboxybenzyl-, 4-carboxyphenyl-sulfonyl- and 5-carboxyfur-2-yl-sulfonyl-;
  • (c) is
  • Figure US20190031618A1-20190131-C00058
  • wherein a is 0; and wherein R5 is selected from the group consisting of 3-carboxybenzyl-, 4-carboxyphenyl-sulfonyl- and 5-carboxy-fur-2-yl-sulfonyl-;
  • (d) is
  • Figure US20190031618A1-20190131-C00059
  • wherein a is an integer from 0 to 1; L1 is selected from the group consisting of —CH2— and —CH2—CH(R*—CH3)—; and wherein R5 is selected from the group consisting of hydrogen, propyn-3-yl, carboxy-methyl-, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, 2-carboxy-ethyl-carbonyl-, aminocarbonyl-methyl-carbonyl-, 2-(aminocarbonyl)-ethyl-carbonyl-, ethoxycarbonyl-, t-butoxycarbonyl-, cyclopentyloxy-carbonyl-, 2,3,4-trihydroxy-n-butyloxy-carbonyl-, 3-carboxyphenyl, 4-carboxyphenyl, 3-(carboxy-methyl)-phenyl, 4-(carboxy-methyl)-phenyl, 3-(methoxycarbonyl)-phenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 4-(aminocarbonyl-methoxy)-phenyl, 3-(carboxy-methoxy)-phenyl, 4-(carboxy-methoxy)-phenyl, 3-hydroxy-benzyl, 3-(hex-2-en-1-yloxy)-benzyl, 2-trifluoromethyl-benzyl, 3-carboxy-benzyl, 4-carboxy-benzyl, 3-(methoxycarbonyl)-benzyl, 3-(aminocarbonyl)-benzyl, 4-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 2-hydroxy-3-carboxy-benzyl, 2-hydroxy-5-carboxy-benzyl, 2-fluoro-3-carboxy-benzyl, 2-fluoro-5-carboxy-benzyl, 2-chloro-3-carboxy-benzyl, 2-chloro-5-carboxy-benzyl, 2-trifluoromethyl-5-carboxy-benzyl, 3-fluoro-5-carboxy-benzyl, 3-carboxy-4-fluoro-benzyl, 3-carboxy-4-hydroxy-benzyl, 3-trifluoromethyl-5-carboxy-benzyl, 1-(3-hydroxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-ethyl-, 1R*-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 4-carboxy-pyrimidin-2-yl, 5-carboxy-pyrimidin-2-yl, 5-methoxycarbonyl-pyrimidin-2-yl, 2-carboxy-pyrid-4-yl-methyl-, 4-carboxy-pyrid-2-yl-methyl-,5-carboxy-pyrid-2-yl-methyl-, 6-carboxy-pyrid-2-yl-methyl-, 5-carboxy-pyrid-3-yl-methyl-, 6-carboxy-pyrid-3-yl-methyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 6-aminocarbonyl-pyrid-2-yl-methyl-, 5-aminocarbonyl-pyrid-3-yl-methyl-, 6-aminocarbonyl-pyrid-3-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl-, 5-carboxy-fur-2-yl-methyl-, 5-aminocarbonyl-fur-2-yl-methyl-, 1-(5-carboxy-fur-2-yl)-ethyl-, 4-carboxy-thien-2-yl-methyl-, 5-carboxy-thien-2-yl-methyl-, 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, phenoxy-carbonyl-, benzyloxy-carbonyl-, ethylamino-carbonyl-, cyclopentyl-amino-carbonyl-, phenyl-aminocarbonyl-, benzyl-amino-carbonyl-, 4-carboxy-phenyl-carbonyl-, 4-aminoarbonyl-phenyl-carbonyl-, 3-aminosulfonyl-phenyl-carbonyl-, 4-aminosulfonyl-phenyl-carbonyl-, 6-carboxy-pyrid-3-yl-carbonyl-, 6-aminocarbonyl-pyrid-3-yl-carbonyl-, 1,2,3-triazol-4-yl-carbonyl-, 1,2,4-triazol-3-yl-carbonyl-, methyl-sulfonyl-, trifluoromethyl-sulfonyl-, carboxymethyl-sulfonyl-, carboxyethyl-sulfonyl-, amino-sulfonyl-, amino-ethyl-sulfonyl-, aminocarbonyl-methyl-sulfonyl-, phenyl-sulfonyl-, 4-fluorophenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 2-hydroxyphenyl-sulfonyl-, 3-hydroxyphenyl-sulfonyl-, 4-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-methoxy-phenyl-sulfonyl-, 4-methoxy-phenyl-sulfonyl-, 2-trifluoromethyl-phenyl-sulfonyl-, 3-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethoxy-phenyl-sulfonyl-, 2-carboxyphenyl-sulfonyl-, 3-carboxyphenyl-sulfonyl-, 4-carboxyphenyl-sulfonyl-, 4-carboxy-methoxy-phenyl-sulfonyl-, 3-aminophenyl-sulfonyl-, 4-aminophenyl-sulfonyl-, 2-aminocarbonyl-phenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-(methylamino-carbonyl)-phenyl-sulfonyl-, 3-(carboxy-ethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(3-hydroxy-n-propyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(2-(methoxycarbonyl)-ethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(2-hydroxyethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-fluoro-4-hydroxy-phenyl-sulfonyl-, 3-fluoro-4-methoxy-phenyl-sulfonyl-, 3-fluoro-4-aminocabonyl-phenyl-sulfonyl-, 3-fluoro-4-carboxy-phenyl-sulfonyl-, 3-chloro-4-aminocarbonyl-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl-, 3-methyl-4-aminocarbonyl-phenyl-sulfonyl-, 3-methyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-aminocarbonyl-phenyl-sulfonyl, 3-methoxy-4-carboxy-phenyl-sulfonyl, 3-methoxy-4-aminocarbonyl-phenyl-sulfonyl-, 3-carboxy-4-chloro-phenyl-sulfonyl-, 3-carboxy-4-fluoro-phenyl-sulfonyl-, 3-carboxy-4-methyl-phenyl-sulfonyl-, 3-carboxy-4-methoxy-phenyl-sulfonyl-, 3-aminocarbonyl-4-fluoro-phenyl-sulfonyl-, 3-aminocarbonyl-4-methyl-phenyl-sulfonyl-, 3-aminocarbonyl-4-methoxy-phenyl-sulfonyl-, 3,5-dichloro-4-hydroxy-phenyl-sulfonyl-, piperazin-1-yl-ethyl-sulfonyl-, 5-(hydroxymethyl)-fur-2-yl-sulfonyl-, 5-carboxy-fur-2-yl-sulfonyl-, 5-(aminocarbonyl)-fur-2-yl-sulfonyl-, 4-carboxy-thien-2-yl-sulfonyl-, 4-(aminocarbonyl)-thien-2-yl-sulfonyl-, 3-methyl-5-carboxy-thien-2-yl-sulfonyl-, 3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl-, 6-carboxy-pyrid-3-yl-sulfonyl-, 6-aminocarbonyl-pyrid-3-yl-sulfonyl-, 6-(2-hydroxyethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-, 6-(carboxyethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl- and 6-(methoxycarbonyl-ethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-;
  • (e) is
  • Figure US20190031618A1-20190131-C00060
  • wherein a is 0; and wherein R5 is selected from the group consisting of ethoxycarbonyl- and trifluoromethyl-sulfonyl-;
  • (f) is
  • Figure US20190031618A1-20190131-C00061
  • wherein R5 is trifluoromethyl-sulfonyl-;
  • (g) is
  • Figure US20190031618A1-20190131-C00062
  • wherein b is an integer from 0 to 1; wherein L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—, —CH(CH3)—CH2—, —CH2—CH(CH3)—, —CH2—CH(R*—CH3)—, —CH2—CH(S*—CH3)—, —CH2CH2—O—, —CH2—CH(OH)—, —CH2—CH(R*—OH), —CH(CH3)—CH(OH) and —CH2CH2CH2—NH—SO2—; wherein R6 is selected from the group consisting of hydrogen, 3-bromo, 3-chloro, 4-chloro, 3-hydroxy, 4-hydroxy, 3-methoxy, 4-methoxy, 4-trifluoromethyl, 3-carboxy, 4-carboxy, 3-carboxy-methoxy-, 4-carboxy-methoxy-, 3-methoxycarbonyl-,4-methoxycarbonyl-, 3-ethoxy-carbonyl-methoxy-, 4-ethoxy-carbonyl-methoxy-, 4-aminocarbonyl-, 3-amino-carbonyl-methoxy-, 4-amino-carbonyl-methoxy-, 3-(3-carboxyphenyl), 3-(4-carboxy-phenyl), 4-(3-carboxyphenyl), 4-(4-carboxyphenyl) and 3-(5-carboxy-thien-2-yl); and wherein R7 is selected from the group consisting of hydrogen and 5-trifluoromethyl;
  • (h) is
  • Figure US20190031618A1-20190131-C00063
  • wherein L3 is selected from the group consisting of —CH2— and —CH2CH2—O—; and wherein R8 is selected from the group consisting of hydrogen, carboxy and methoxycarbonyl-;
  • (i) is
  • Figure US20190031618A1-20190131-C00064
  • wherein c is an integer from 0 to 1; wherein L4 is —CH2—;
  • (j) is
  • Figure US20190031618A1-20190131-C00065
  • and (k) is
  • Figure US20190031618A1-20190131-C00066
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein R3 is selected from the group consisting of (a), (b), (d), (f), (g), (h) and (i); wherein
  • (a) is
  • Figure US20190031618A1-20190131-C00067
  • wherein the cyclohexyl group is bound in a cis-, trans- or racemic orientation; and wherein R4 is selected from the group consisting of hydrogen, aminocarbonyl-, 3-hydroxyphenyl-amino-, 3-carboxyphenyl-amino-, 4-carboxyphenyl-amino-, 3-carboxyphenyl-sulfonyl-amino- and 4-carboxyphenyl-sulfonyl-amino-;
  • (b) is
  • Figure US20190031618A1-20190131-C00068
  • wherein a 0; and wherein R5 is selected from the group consisting of 3-carboxybenzyl- and 4-carboxyphenyl-sulfonyl-;
  • (d) is
  • Figure US20190031618A1-20190131-C00069
  • wherein a is an integer from 0 to 1; wherein L1 is —CH2—; and wherein R5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, aminocarbonyl-methyl-carbonyl-, aminocarbonyl-ethyl-carbonyl-, ethoxycarbonyl-, t-butoxycarbonyl-, cyclopentyloxy-carbonyl-, 2,3,4-trihydroxy-n-butyloxy-carbonyl-, 3-carboxyphenyl, 4-carboxyphenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 4-(aminocarbonyl-methoxy)-phenyl, 3-hydroxy-benzyl, 2-trifluoromethyl-benzyl, 3-carboxy-benzyl, 4-carboxy-benzyl, 3-(aminocarbonyl)-benzyl, 4-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 2-hydroxy-3-carboxy-benzyl, 2-fluoro-5-carboxy-benzyl, 3-fluoro-5-carboxy-benzyl, 2-chloro-3-carboxy-benzyl, 2-chloro-5-carboxy-benzyl, 2-trifluoromethyl-5-carboxy-benzyl, 3-carboxy-4-fluoro-benzyl, 3-carboxy-4-hydroxy-benzyl, 1-(3-hydroxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-ethyl-, 1R*-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 5-carboxy-pyrimidin-2-yl, 5-methoxycarbonyl-pyrimidin-2-yl, 2-carboxy-pyrid-4-yl-methyl-, 4-carboxy-pyrid-2-yl-methyl-, 5-carboxy-pyrid-2-yl-methyl-, 6-carboxy-pyrid-2-yl-methyl-, 5-carboxy-pyrid-3-yl-methyl-, 6-carboxy-pyrid-3-yl-methyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 6-aminocarbonyl-pyrid-2-yl-methyl-, 5-aminocarbonyl-pyrid-3-yl-methyl-, 6-aminocarbonyl-pyrid-3-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl-, 5-carboxy-fur-2-yl-methyl-, 1-(5-carboxy-fur-2-yl)-ethyl-, 5-aminocarbonyl-fur-2-yl-methyl-, 4-carboxy-thien-2-yl-methyl-, 5-carboxy-thien-2-yl-methyl-, 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, phenoxy-carbonyl-, benzyloxy-carbonyl-, ethylamino-carbonyl-, cyclopentyl-amino-carbonyl-, phenyl-aminocarbonyl-, benzyl-amino-carbonyl-, 4-aminocarbonyl-phenyl-carbonyl-, 3-aminosulfonyl-phenyl-carbonyl-, 4-aminosulfonyl-phenyl-carbonyl-, 6-aminocarbonyl-pyrid-3-yl-carbonyl-, 1,2,4-triazol-3-yl-carbonyl-, methylsulfonyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-fluorophenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 2-hydroxyphenyl-sulfonyl-, 3-hydroxyphenyl-sulfonyl-, 4-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-methoxy-phenyl-sulfonyl-, 4-methoxy-phenyl-sulfonyl-, 2-trifluoromethyl-phenyl-sulfonyl-, 3-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethoxy-phenyl-sulfonyl-,3-carboxyphenyl-sulfonyl-, 4-carboxyphenyl-sulfonyl-, 3-aminophenyl-sulfonyl-, 4-aminophenyl-sulfonyl-, 2-aminocarbonyl-phenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-(methylamino-carbonyl)-phenyl-sulfonyl-, 3-(3-hydroxy-n-propyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(2-(methoxycarbonyl)-ethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(2-hydroxyethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-fluoro-4-methoxy-phenyl-sulfonyl-, 3-fluoro-4-aminocabonyl-phenyl-sulfonyl-, 3-fluoro-4-carboxy-phenyl-sulfonyl-, 3-chloro-4-aminocarbonyl-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl, 3-methyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-aminocarbonyl-phenyl-sulfonyl, 3-methoxy-4-aminocarbonyl-phenyl-sulfonyl-, 3-methoxy-4-carboxy-phenyl-sulfonyl-, 3-carboxy-4-chloro-phenyl-sulfonyl-, 3-carboxy-4-fluoro-phenyl-sulfonyl-, 3-aminocarbonyl-4-fluoro-phenyl-sulfonyl-, 3-aminocarbonyl-4-methyl-phenyl-sulfonyl-, 3-aminocarbonyl-4-methoxy-phenyl-sulfonyl-, 3,5-dichloro-4-hydroxy-phenyl-sulfonyl-, 5-(hydroxymethyl)-fur-2-yl-sulfonyl-, 5-carboxy-fur-2-yl-sulfonyl-, 5-(aminocarbonyl)-fur-2-yl-sulfonyl-, 4-carboxy-thien-2-yl-sulfonyl-, 4-(aminocarbonyl)-thien-2-yl-sulfonyl-, 3-methyl-5-carboxy-thien-2-yl-sulfonyl-, 3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl-, 6-carboxy-pyrid-3-yl-sulfonyl-, 6-aminocarbonyl-pyrid-3-yl-sulfonyl-, 6-(2-hydroxyethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-, 6-(carboxyethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl- and 6-(methoxycarbonyl-ethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-;
  • (f) is
  • Figure US20190031618A1-20190131-C00070
  • wherein R5 is trifluoromethyl-sulfonyl-;
  • (g) is
  • Figure US20190031618A1-20190131-C00071
  • wherein b is an integer from 0 to 1; L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—CH2—, —CH2—CH(R*—CH3)—, —CH2—CH(S*—CH3)—, —CH2CH2—O—, —CH2—CH(OH)— and —CH2CH2CH2—NH—SO2—; and wherein R6 is selected from the group consisting of hydrogen, 3-chloro-, 4-chloro-, 3-bromo-, 4-bromo-, 3-hydroxy, 4-hydroxy-, 4-trifluoromethyl, 3-methoxy-, 4-methoxy-, 4-methoxycarbonyl-, 3-(ethoxy-carbonyl-methoxy)-, 4-(ethoxy-carbonyl-methoxy)-, 3-(aminocarbonyl-methoxy)-, 4-(aminocarbonyl-methoxy)-, 3-(3-carboxyphenyl), 3-(4-carboxyphenyl) and 3-(5-carboxy-thein-2-yl); and R7 is selected from the group consisting of hydrogen and 5-trifluoromethyl;
  • (h) is
  • Figure US20190031618A1-20190131-C00072
  • wherein L3 is —CH2CH2— and wherein R8 is 5-methoxycarbonyl-;
  • and (i) is
  • Figure US20190031618A1-20190131-C00073
  • wherein c is an integer from 0 to 1; and wherein L4 is —CH2—.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is selected from the group consisting of (a), (b), (d), (f), (g) and (i); wherein
  • (a) is
  • Figure US20190031618A1-20190131-C00074
  • wherein the cyclohexyl group is bound in trans-orientation; and wherein R4 is 3-hydroxyphenyl-amino-;
  • (b) is
  • Figure US20190031618A1-20190131-C00075
  • wherein a 0; and wherein R5 is 3-carboxybenzyl-;
  • (d) is
  • Figure US20190031618A1-20190131-C00076
  • wherein a is an integer from 0 to 1; wherein L1 is —CH2—; and wherein R5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, ethoxycarbonyl-cyclopentyloxy-carbonyl-, 4-carboxyphenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 4-(aminocarbonyl-methoxy)-phenyl, 3-hydroxy-benzyl, 3-carboxy-benzyl, 4-carboxy-benzyl, 3-(aminocarbonyl)-benzyl, 4-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 2-fluoro-5-carboxy-benzyl, 3-fluoro-5-carboxy-benzyl, 2-chloro-5-carboxy-benzyl, 3-carboxy-4-fluoro-benzyl, 3-carboxy-4-hydroxy-benzyl, 1-(3-hydroxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-ethyl-, 1R*-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 5-carboxy-pyrimidin-2-yl, 5-carboxy-pyrid-3-yl-methyl-, 6-carboxy-pyrid-3-yl-methyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 6-aminocarbonyl-pyrid-2-yl-methyl-, 5-aminocarbonyl-pyrid-3-yl-methyl-, 6-aminocarbonyl-pyrid-3-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl-, 5-carboxy-fur-2-yl-methyl-, 5-aminocarbonyl-fur-2-yl-methyl-, 1-(5-carboxy-fur-2-yl)-ethyl-, 4-carboxy-thien-2-yl-methyl-, 5-carboxy-thien-2-yl-methyl-, 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, phenoxy-carbonyl-, benzyloxy-carbonyl-, ethylamino-carbonyl-, 3-aminosulfonyl-phenyl-carbonyl-, 6-aminocarbonyl-pyrid-3-yl-carbonyl-, methylsulfonyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-fluorophenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 2-hydroxyphenyl-sulfonyl-, 3-hydroxyphenyl-sulfonyl-, 4-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-methoxy-phenyl-sulfonyl-, 4-methoxy-phenyl-sulfonyl-, 2-trifluoromethyl-phenyl-sulfonyl-, 3-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethyl-phenyl-sulfonyl-, 3-carboxyphenyl-sulfonyl-, 4-carboxyphenyl-sulfonyl-, 3-aminophenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-(methylamino-carbonyl)-phenyl-sulfonyl-, 3-(3-hydroxy-n-propyl-amino-carbonyl)-phenyl-sulfonyl-, 3-fluoro-4-aminocabonyl-phenyl-sulfonyl-, 3-fluoro-4-carboxy-phenyl-sulfonyl-, 3-chloro-4-aminocarbonyl-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl, 3-methyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl-, 3-methoxy-4-aminocarbonyl-phenyl-sulfonyl-, 3-methoxy-4-carboxy-phenyl-sulfonyl-, 3-carboxy-4-chloro-phenyl-sulfonyl-, 3-carboxy-4-fluoro-phenyl-sulfonyl-, 3-aminocarbonyl-4-fluoro-phenyl-sulfonyl-, 3,5-dichloro-4-hydroxy-phenyl-sulfonyl-, 5-(hydroxymethyl)-fur-2-yl-sulfonyl-, 5-carboxy-fur-2-yl-sulfonyl-, 5-(aminocarbonyl)-fur-2-yl-sulfonyl-, 4-carboxy-thien-2-yl-sulfonyl-, 4-(aminocarbonyl)-thien-2-yl-sulfonyl-, 3-methyl-5-carboxy-thien-2-yl-sulfonyl-, 3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl-, 6-carboxy-pyrid-3-yl-sulfonyl-, 6-aminocarbonyl-pyrid-3-yl-sulfonyl- and 6-(methoxycarbonyl-ethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-;
  • (f) is
  • Figure US20190031618A1-20190131-C00077
  • wherein R5 is trifluoromethyl-sulfonyl-;
  • (g) is
  • Figure US20190031618A1-20190131-C00078
  • wherein b is an integer from 0 to 1; L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH2—CH(R*—CH3)—, —CH2CH2—O—, —CH2—CH(OH)— and —CH2CH2CH2—NH—SO2—; and wherein R6 is selected from the group consisting of hydrogen, 3-chloro-, 3-bromo-, 4-bromo-, 3-hydroxy, 4-trifluoromethyl, 3-methoxy-, 4-methoxy-, 3-(ethoxy-carbonyl-methoxy)-, 4-(ethoxy-carbonyl-methoxy)-, and 3-(5-carboxy-thein-2-yl); and R7 is hydrogen;
  • and (i) is
  • Figure US20190031618A1-20190131-C00079
  • wherein c is 1; and wherein L4 is —CH2—.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is selected from the group consisting of (d), (f) and (g); wherein
  • (d) is
  • Figure US20190031618A1-20190131-C00080
  • wherein a is an integer from 0 to 1; wherein L1 is —CH2—; and wherein R5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 3-carboxy-benzyl, 3-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 3-fluoro-5-carboxy-benzyl, 1-(3-carboxyphenyl)-ethyl-, 1R*-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 5-carboxy-pyrimidin-2-yl, 5-aminocarbonyl-pyrid-2-yl-methyl-, 5-aminocarbonyl-pyrid-3-yl-methyl-, 6-aminocarbonyl-pyrid-3-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl-, 5-aminocarbonyl-fur-2-yl-methyl-, 5-carboxy-thien-2-yl-methyl-, 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, benzyloxy-carbonyl-, methylsulfonyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-fluorophenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 3-hydroxyphenyl-sulfonyl-, 4-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-trifluoromethyl-phenyl-sulfonyl-, 4-carboxyphenyl-sulfonyl-, 3-aminophenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl, 3-methyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl-, 3-methoxy-4-aminocarbonyl-phenyl-sulfonyl-, 3-methoxy-4-carboxy-phenyl-sulfonyl-, 5-(aminocarbonyl)-fur-2-yl-sulfonyl-, 4-carboxy-thien-2-yl-sulfonyl-, 4-(aminocarbonyl)-thien-2-yl-sulfonyl-, 3-methyl-5-carboxy-thien-2-yl-sulfonyl-, 3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl- and 6-aminocarbonyl-pyrid-3-yl-sulfonyl-;
  • (f) is
  • Figure US20190031618A1-20190131-C00081
  • wherein R5 is trifluoromethyl-sulfonyl-;
  • and (g) is
  • Figure US20190031618A1-20190131-C00082
  • wherein b is an integer from 0 to 1; L2 is —CH2CH2—; and wherein R6 is selected from the group consisting of 3-chloro-, 4-trifluoromethyl, 4-methoxy- and 4-(ethoxy-carbonyl-methoxy)-; and R7 is hydrogen.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is selected from the group consisting of (d), (f) and (g); wherein
  • (d) is
  • Figure US20190031618A1-20190131-C00083
  • wherein a is an integer from 0 to 1; wherein L1 is —CH2—; and wherein R5 is selected from the group consisting of methoxy-carbonyl-methyl-, 3-(aminocarbonyl)-benzyl, 1R*-(3-carboxyphenyl)-ethyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 3-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl- and 6-aminocarbonyl-pyrid-3-yl-sulfonyl-;
  • (f) is
  • Figure US20190031618A1-20190131-C00084
  • wherein R5 is trifluoromethyl-sulfonyl-;
  • and (g) is
  • Figure US20190031618A1-20190131-C00085
  • wherein b is an integer from 0 to 1; L2 is —CH2CH2—; and wherein R6 is selected from the group consisting of 4-trifluoromethyl, 4-methoxy- and 4-(ethoxy-carbonyl-methoxy)-; and R7 is hydrogen.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (a)
  • Figure US20190031618A1-20190131-C00086
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (b)
  • Figure US20190031618A1-20190131-C00087
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (c)
  • Figure US20190031618A1-20190131-C00088
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • R3 is (d)
  • Figure US20190031618A1-20190131-C00089
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (e)
  • Figure US20190031618A1-20190131-C00090
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (f)
  • Figure US20190031618A1-20190131-C00091
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (g)
  • Figure US20190031618A1-20190131-C00092
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (h)
  • Figure US20190031618A1-20190131-C00093
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (i)
  • Figure US20190031618A1-20190131-C00094
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein
  • R3 is (j)
  • Figure US20190031618A1-20190131-C00095
  • In another embodiment the present invention is directed to compounds of formula (I) wherein R3 is (k)
  • Figure US20190031618A1-20190131-C00096
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (a); wherein (a) is
  • Figure US20190031618A1-20190131-C00097
  • wherein R4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)O—(C1-2alkyl), —C(O)NRGRH, —NH-(phenyl), and —NH—SO2-(phenyl); wherein the phenyl is optionally substituted with hydroxy or carboxy; and wherein RG and RH are each independently selected from the group consisting of hydrogen and methyl.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (a); wherein (a) is
  • Figure US20190031618A1-20190131-C00098
  • wherein R4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)NRGRH, —NH-(phenyl) and —NH—SO2-(phenyl); wherein the phenyl is optionally substituted with hydroxy or carboxy; wherein RG and RH are each independently selected from the group consisting of hydrogen and methyl.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (a); wherein (a) is
  • Figure US20190031618A1-20190131-C00099
  • wherein R4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)NH2, —NH—SO2-(3-carboxyphenyl), —NH-(3-hydroxyphenyl), —NH-(3-carboxyphenyl), —NH-(4-carboxyphenyl) and —NH—SO2-(4-carboxyphenyl); and wherein the cyclohexyl is bound to the benzimidazole core in a cis-, trans- or racemic stereo-orientation.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (a) is
  • Figure US20190031618A1-20190131-C00100
  • wherein the cyclohexyl group is bound in a cis-, trans- or racemic orientation; and wherein R4 is selected from the group consisting of hydrogen, aminocarbonyl-, 3-hydroxyphenyl-amino-, 3-carboxyphenyl-amino-, 4-carboxyphenyl-amino-, 3-carboxyphenyl-sulfonyl-amino- and 4-carboxyphenyl-sulfonyl-amino-. In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (a) is
  • Figure US20190031618A1-20190131-C00101
  • wherein the cyclohexyl group is bound in trans-orientation; and wherein R4 is 3-hydroxyphenyl-amino-.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is selected from the group consisting of (b) through (f);
  • wherein (b) is
  • Figure US20190031618A1-20190131-C00102
  • (c) is
  • Figure US20190031618A1-20190131-C00103
  • (d) is
  • Figure US20190031618A1-20190131-C00104
  • (e) is
  • Figure US20190031618A1-20190131-C00105
  • (f) is
  • Figure US20190031618A1-20190131-C00106
  • wherein a is an integer from 0 to 1; wherein L1 is selected from the group consisting of —CH2—, —CH2—CH2, —CH(CH3)CH2— and —CH2—CH(CH3)—; wherein R5 is selected from the group consisting of hydrogen, C1-2alkyl, fluorinated C1-2alkyl, C2-4alkenyl, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C2alkyl)-O-(phenyl), —C(O)—(C1-2alkyl)-OH, —C(O)—(C1-2alkyl)-C(O)OH, —C(O)—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—(C1-2alkyl)-C(O)—NH2, —C(O)O—(C1-4alkyl), —C(O)O—(C3-5cycloalkyl), —C(O)O-(phenyl), —C(O)O—CH2-(phenyl), —C(O)—NH2, —C(O)NH—(C1-2alkyl), —C(O)NH—(C3-5cycloalkyl), —C(O)NH-(phenyl), —C(O)NH—(C1-2alkyl)-(phenyl), —SO2—(C1-2alkyl), —SO2-(fluorinated C1-2alkyl), —SO2—(C1-2alkyl)-C(O)OH, —SO2—(C1-2alkyl)-C(O)O—(C1-2alkyl), —SO2—NH2, —SO2—NH—(C1-2alkyl), —SO2—(C1-2alkyl)-C(O)NH2, phenyl, —(C1-3alkyl)-phenyl, —C(O)-(phenyl), —C(O)O-(phenyl), —C(O)O—(C1-2alkyl)-(phenyl), —SO2-(phenyl), pyrimidin-2-yl, pyrid-2-yl, pyrid-3-yl, —(C1-2alkyl)-pyrid-2-yl, —(C1-2alkyl)-pyrid-3-yl, —(C1-2alkyl)-fur-2-yl, —(C1-2alkyl)-thien-2-yl, —C(O)-fur-2-yl, —C(O)-thien-2-yl, —C(O)-(pyrid-3-yl), —C(O)-(1,2,3-triazol-4-yl), —C(O)-(1,2,4,-triazol-3-yl), —SO2—(C1-2alkyl)-(piperazin-1-yl), —SO2-(fury-2-yl), —SO2-(thien-2-yl) and —SO2-(pyrid-3-yl); wherein the phenyl, pyrimidin-2-yl, pyridyl, furyl, thienyl or pyridyl, is optionally substituted with one to three substituents independently selected from the group consisting of halogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, —(C1-2alkyl)-OH, —C(1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —O—(C1-2alkyl), —O-(fluorinated C1-2alkyl), —O—(C2-6alkenyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)NH2, —C(O)OH, —C(O)O—(C1-4alkyl), —C(O)—NH2, —C(O)—NH—(C1-2alkyl), —C(O)—NH—(C1-3alkyl)-OH, —C(O)—NH—(C1-2alkyl)-C(O)OH, —C(O)—NH—(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C1-2alkyl)-C(O)—NH2, —O—(C1-2alkyl)-C(O)—NH2, —O—(C1-2alkyl)-C(O)OH, —NH2, —NH(C1-2alkyl), —SO2—NH2 and —SO2—NH(C1-2alkyl).
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is selected from the group consisting of (b) through (f);
  • wherein (b) is
  • Figure US20190031618A1-20190131-C00107
  • (c) is
  • Figure US20190031618A1-20190131-C00108
  • (d) is
  • Figure US20190031618A1-20190131-C00109
  • (e) is
  • Figure US20190031618A1-20190131-C00110
  • (f) is
  • Figure US20190031618A1-20190131-C00111
  • wherein a is an integer from 0 to 1; and wherein L1 is selected from the group consisting of —CH2— and —CH2—CH(CH3)—; wherein R5 is selected from the group consisting of hydrogen, C2-4alkenyl, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C2alkyl)-O-(phenyl), —C(O)—(C1-2alkyl)-OH, —C(O)—(C1-2alkyl)-C(O)OH, —C(O)—(C1-2alkyl)-C(O)—NH2, —C(O)O—(C1-4alkyl), —C(O)O-(hydroxy substituted C1-4alkyl), —C(O)O—(C3-5cycloalkyl), —C(O)NH—(C1-2alkyl), —C(O)NH—(C3-5cycloalkyl), —C(O)NH-(phenyl), —C(O)NH—(C1-2alkyl)-(phenyl), —SO2—(C1-2alkyl), —SO2-(fluorinated C1-2alkyl), —SO2—(C1-2alkyl)-C(O)OH, —SO2—NH2, —SO2—NH—(C1-2alkyl), —SO2—(C1-2alkyl)-C(O)NH2, phenyl, —(C1-3alkyl)-phenyl, —C(O)-(phenyl), —C(O)O-(phenyl), —C(O)O—(C1-2alkyl)-(phenyl), —SO2-(phenyl), pyrimidin-2-yl, —(C1-2alkyl)-pyrid-2-yl, —(C1-2alkyl)-pyrid-3-yl, —(C1-2alkyl)-fur-2-yl, —(C1-2alkyl)-thien-2-yl, —C(O)-(pyrid-3-yl), —C(O)-(1,2,3-triazol-4-yl), —C(O)-(1,2,4,-triazol-3-yl), —SO2—(C1-2alkyl)-(piperazin-1-yl), —SO2-(fury-2-yl), —SO2-(thien-2-yl) and —SO2-(pyrid-3-yl); wherein the phenyl is optionally substituted with one to three substituents independently selected from the group consisting of halogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, —O—(C1-2alkyl), —O-(fluorinated C1-2alkyl), —O—(C2-6alkenyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)NH2, —C(O)OH, —C(O)O—(C1-2alkyl), —C(1-2alkyl)-C(O)OH, —C(O)—NH2, —C(O)—NH—(C1-2alkyl), —C(O)—NH—(C1-3alkyl)-OH, —C(O)—NH—(C1-2alkyl)-C(O)OH, —C(O)—NH—(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C1-2alkyl)-C(O)—NH2, —O—(C1-2alkyl)-C(O)—NH2, —O—(C1-2alkyl)-C(O)OH, —NH2 and —SO2—NH2; and wherein the pyrimidin-2-yl, pyrid-2-yl, pyrid-3-yl, fur-2-yl or thien-2-yl is optionally substituted with one to two substituents independently selected from the group consisting of C1-2alkyl, —(C1-2alkyl)-OH, —C(O)OH, —C(O)O—(C1-2alkyl), —C(O)—NH2, —C(O)NH—(C1-2alkyl)-OH, —C(O)NH—(C1-2alkyl)-C(O)OH and —C(O)NH—(C1-2alkyl)-C(O)O—(C1-2alkyl).
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (b); wherein (b) is
  • Figure US20190031618A1-20190131-C00112
  • wherein a 0; and wherein R5 is selected from the group consisting of 3-carboxybenzyl-, 4-carboxyphenyl-sulfonyl- and 5-carboxyfur-2-yl-sulfonyl-.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (b) is
  • Figure US20190031618A1-20190131-C00113
  • wherein a 0; and wherein R5 is selected from the group consisting of 3-carboxybenzyl- and 4-carboxyphenyl-sulfonyl-. In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (b) is
  • Figure US20190031618A1-20190131-C00114
  • wherein a 0; and wherein R5 is 3-carboxybenzyl-.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (c); wherein (c) is
  • Figure US20190031618A1-20190131-C00115
  • wherein a is 0; and wherein
  • R5 is selected from the group consisting of 3-carboxybenzyl-, 4-carboxyphenyl-sulfonyl- and 5-carboxy-fur-2-yl-sulfonyl-.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (d); wherein (d) is
  • Figure US20190031618A1-20190131-C00116
  • wherein a is an integer from 0 to 1; L1 is selected from the group consisting of —CH2— and —CH2—CH(R*—CH3)—; and wherein R5 is selected from the group consisting of hydrogen, propyn-3-yl, carboxy-methyl-, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, 2-carboxy-ethyl-carbonyl-, aminocarbonyl-methyl-carbonyl-, 2-(aminocarbonyl)-ethyl-carbonyl-, ethoxycarbonyl-, t-butoxycarbonyl-, cyclopentyloxy-carbonyl-, 2,3,4-trihydroxy-n-butyloxy-carbonyl-, 3-carboxyphenyl, 4-carboxyphenyl, 3-(carboxy-methyl)-phenyl, 4-(carboxy-methyl)-phenyl, 3-(methoxycarbonyl)-phenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 4-(aminocarbonyl-methoxy)-phenyl, 3-(carboxy-methoxy)-phenyl, 4-(carboxy-methoxy)-phenyl, 3-hydroxy-benzyl, 3-(hex-2-en-1-yloxy)-benzyl, 2-trifluoromethyl-benzyl, 3-carboxy-benzyl, 4-carboxy-benzyl, 3-(methoxycarbonyl)-benzyl, 3-(aminocarbonyl)-benzyl, 4-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 2-hydroxy-3-carboxy-benzyl, 2-hydroxy-5-carboxy-benzyl, 2-fluoro-3-carboxy-benzyl, 2-fluoro-5-carboxy-benzyl, 2-chloro-3-carboxy-benzyl, 2-chloro-5-carboxy-benzyl, 2-trifluoromethyl-5-carboxy-benzyl, 3-fluoro-5-carboxy-benzyl, 3-carboxy-4-fluoro-benzyl, 3-carboxy-4-hydroxy-benzyl, 3-trifluoromethyl-5-carboxy-benzyl, 1-(3-hydroxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-ethyl-, 1R*-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 4-carboxy-pyrimidin-2-yl, 5-carboxy-pyrimidin-2-yl, 5-methoxycarbonyl-pyrimidin-2-yl, 2-carboxy-pyrid-4-yl-methyl-, 4-carboxy-pyrid-2-yl-methyl-, 5-carboxy-pyrid-2-yl-methyl-, 6-carboxy-pyrid-2-yl-methyl-, 5-carboxy-pyrid-3-yl-methyl-, 6-carboxy-pyrid-3-yl-methyl-,5-aminocarbonyl-pyrid-2-yl-methyl-, 6-aminocarbonyl-pyrid-2-yl-methyl-, 5-aminocarbonyl-pyrid-3-yl-methyl-, 6-aminocarbonyl-pyrid-3-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl-, 5-carboxy-fur-2-yl-methyl-, 5-aminocarbonyl-fur-2-yl-methyl-, 1-(5-carboxy-fur-2-yl)-ethyl-, 4-carboxy-thien-2-yl-methyl-, 5-carboxy-thien-2-yl-methyl-, 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, phenoxy-carbonyl-, benzyloxy-carbonyl-, ethylamino-carbonyl-, cyclopentyl-amino-carbonyl-, phenyl-aminocarbonyl-, benzyl-amino-carbonyl-, 4-carboxy-phenyl-carbonyl-, 4-aminoarbonyl-phenyl-carbonyl-, 3-aminosulfonyl-phenyl-carbonyl-, 4-aminosulfonyl-phenyl-carbonyl-, 6-carboxy-pyrid-3-yl-carbonyl-,6-aminocarbonyl-pyrid-3-yl-carbonyl-, 1,2,3-triazol-4-yl-carbonyl-, 1,2,4-triazol-3-yl-carbonyl-, methyl-sulfonyl-, trifluoromethyl-sulfonyl-, carboxymethyl-sulfonyl-, carboxyethyl-sulfonyl-, amino-sulfonyl-, amino-ethyl-sulfonyl-, aminocarbonyl-methyl-sulfonyl-, phenyl-sulfonyl-, 4-fluorophenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 2-hydroxyphenyl-sulfonyl-, 3-hydroxyphenyl-sulfonyl-, 4-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-methoxy-phenyl-sulfonyl-, 4-methoxy-phenyl-sulfonyl-, 2-trifluoromethyl-phenyl-sulfonyl-, 3-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethoxy-phenyl-sulfonyl-, 2-carboxyphenyl-sulfonyl-, 3-carboxyphenyl-sulfonyl-, 4-carboxyphenyl-sulfonyl-, 4-carboxy-methoxy-phenyl-sulfonyl-, 3-aminophenyl-sulfonyl-, 4-aminophenyl-sulfonyl-, 2-aminocarbonyl-phenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-(methylamino-carbonyl)-phenyl-sulfonyl-, 3-(carboxy-ethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(3-hydroxy-n-propyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(2-(methoxycarbonyl)-ethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(2-hydroxyethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-fluoro-4-hydroxy-phenyl-sulfonyl-, 3-fluoro-4-methoxy-phenyl-sulfonyl-, 3-fluoro-4-aminocabonyl-phenyl-sulfonyl-, 3-fluoro-4-carboxy-phenyl-sulfonyl-, 3-chloro-4-aminocarbonyl-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl-, 3-methyl-4-aminocarbonyl-phenyl-sulfonyl-, 3-methyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-aminocarbonyl-phenyl-sulfonyl, 3-methoxy-4-carboxy-phenyl-sulfonyl, 3-methoxy-4-aminocarbonyl-phenyl-sulfonyl-, 3-carboxy-4-chloro-phenyl-sulfonyl-, 3-carboxy-4-fluoro-phenyl-sulfonyl-, 3-carboxy-4-methyl-phenyl-sulfonyl-, 3-carboxy-4-methoxy-phenyl-sulfonyl-, 3-aminocarbonyl-4-fluoro-phenyl-sulfonyl-, 3-aminocarbonyl-4-methyl-phenyl-sulfonyl-, 3-aminocarbonyl-4-methoxy-phenyl-sulfonyl-, 3,5-dichloro-4-hydroxy-phenyl-sulfonyl-, piperazin-1-yl-ethyl-sulfonyl-, 5-(hydroxymethyl)-fur-2-yl-sulfonyl-, 5-carboxy-fur-2-yl-sulfonyl-, 5-(aminocarbonyl)-fur-2-yl-sulfonyl-, 4-carboxy-thien-2-yl-sulfonyl-, 4-(aminocarbonyl)-thien-2-yl-sulfonyl-, 3-methyl-5-carboxy-thien-2-yl-sulfonyl-, 3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl-, 6-carboxy-pyrid-3-yl-sulfonyl-, 6-aminocarbonyl-pyrid-3-yl-sulfonyl-, 6-(2-hydroxyethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-, 6-(carboxyethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl- and 6-(methoxycarbonyl-ethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (d) is
  • Figure US20190031618A1-20190131-C00117
  • wherein a is an integer from 0 to 1; wherein L1 is —CH2—; and wherein R5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, aminocarbonyl-methyl-carbonyl-, aminocarbonyl-ethyl-carbonyl-, ethoxycarbonyl-, t-butoxycarbonyl-, cyclopentyloxy-carbonyl-, 2,3,4-trihydroxy-n-butyloxy-carbonyl-, 3-carboxyphenyl, 4-carboxyphenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 4-(aminocarbonyl-methoxy)-phenyl, 3-hydroxy-benzyl, 2-trifluoromethyl-benzyl, 3-carboxy-benzyl, 4-carboxy-benzyl, 3-(aminocarbonyl)-benzyl, 4-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 2-hydroxy-3-carboxy-benzyl, 2-fluoro-5-carboxy-benzyl, 3-fluoro-5-carboxy-benzyl, 2-chloro-3-carboxy-benzyl, 2-chloro-5-carboxy-benzyl, 2-trifluoromethyl-5-carboxy-benzyl, 3-carboxy-4-fluoro-benzyl, 3-carboxy-4-hydroxy-benzyl, 1-(3-hydroxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-ethyl-, 1R*-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 5-carboxy-pyrimidin-2-yl, 5-methoxycarbonyl-pyrimidin-2-yl, 2-carboxy-pyrid-4-yl-methyl-, 4-carboxy-pyrid-2-yl-methyl-, 5-carboxy-pyrid-2-yl-methyl-, 6-carboxy-pyrid-2-yl-methyl-, 5-carboxy-pyrid-3-yl-methyl-, 6-carboxy-pyrid-3-yl-methyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 6-aminocarbonyl-pyrid-2-yl-methyl-, 5-aminocarbonyl-pyrid-3-yl-methyl-, 6-aminocarbonyl-pyrid-3-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl-, 5-carboxy-fur-2-yl-methyl-, 1-(5-carboxy-fur-2-yl)-ethyl-, 5-aminocarbonyl-fur-2-yl-methyl-, 4-carboxy-thien-2-yl-methyl-, 5-carboxy-thien-2-yl-methyl-, 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, phenoxy-carbonyl-, benzyloxy-carbonyl-, ethylamino-carbonyl-, cyclopentyl-amino-carbonyl-, phenyl-aminocarbonyl-, benzyl-amino-carbonyl-, 4-aminocarbonyl-phenyl-carbonyl-, 3-aminosulfonyl-phenyl-carbonyl-, 4-aminosulfonyl-phenyl-carbonyl-, 6-aminocarbonyl-pyrid-3-yl-carbonyl-, 1,2,4-triazol-3-yl-carbonyl-, methylsulfonyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-fluorophenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 2-hydroxyphenyl-sulfonyl-, 3-hydroxyphenyl-sulfonyl-, 4-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-methoxy-phenyl-sulfonyl-, 4-methoxy-phenyl-sulfonyl-, 2-trifluoromethyl-phenyl-sulfonyl-, 3-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethoxy-phenyl-sulfonyl-,3-carboxyphenyl-sulfonyl-, 4-carboxyphenyl-sulfonyl-, 3-aminophenyl-sulfonyl-, 4-aminophenyl-sulfonyl-, 2-aminocarbonyl-phenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-(methylamino-carbonyl)-phenyl-sulfonyl-, 3-(3-hydroxy-n-propyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(2-(methoxycarbonyl)-ethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(2-hydroxyethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-fluoro-4-methoxy-phenyl-sulfonyl-, 3-fluoro-4-aminocabonyl-phenyl-sulfonyl-, 3-fluoro-4-carboxy-phenyl-sulfonyl-, 3-chloro-4-aminocarbonyl-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl, 3-methyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-aminocarbonyl-phenyl-sulfonyl, 3-methoxy-4-aminocarbonyl-phenyl-sulfonyl-, 3-methoxy-4-carboxy-phenyl-sulfonyl-, 3-carboxy-4-chloro-phenyl-sulfonyl-, 3-carboxy-4-fluoro-phenyl-sulfonyl-, 3-aminocarbonyl-4-fluoro-phenyl-sulfonyl-, 3-aminocarbonyl-4-methyl-phenyl-sulfonyl-, 3-aminocarbonyl-4-methoxy-phenyl-sulfonyl-, 3,5-dichloro-4-hydroxy-phenyl-sulfonyl-, 5-(hydroxymethyl)-fur-2-yl-sulfonyl-, 5-carboxy-fur-2-yl-sulfonyl-, 5-(aminocarbonyl)-fur-2-yl-sulfonyl-, 4-carboxy-thien-2-yl-sulfonyl-, 4-(aminocarbonyl)-thien-2-yl-sulfonyl-, 3-methyl-5-carboxy-thien-2-yl-sulfonyl-, 3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl-, 6-carboxy-pyrid-3-yl-sulfonyl-, 6-aminocarbonyl-pyrid-3-yl-sulfonyl-, 6-(2-hydroxyethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-, 6-(carboxyethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl- and 6-(methoxycarbonyl-ethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (d) is
  • Figure US20190031618A1-20190131-C00118
  • wherein a is an integer from 0 to 1; wherein L1 is —CH2—; and wherein R5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, ethoxycarbonyl-cyclopentyloxy-carbonyl-, 4-carboxyphenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 4-(aminocarbonyl-methoxy)-phenyl, 3-hydroxy-benzyl, 3-carboxy-benzyl, 4-carboxy-benzyl, 3-(aminocarbonyl)-benzyl, 4-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 2-fluoro-5-carboxy-benzyl, 3-fluoro-5-carboxy-benzyl, 2-chloro-5-carboxy-benzyl, 3-carboxy-4-fluoro-benzyl, 3-carboxy-4-hydroxy-benzyl, 1-(3-hydroxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-ethyl-, 1R*-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 5-carboxy-pyrimidin-2-yl, 5-carboxy-pyrid-3-yl-methyl-, 6-carboxy-pyrid-3-yl-methyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 6-aminocarbonyl-pyrid-2-yl-methyl-,5-aminocarbonyl-pyrid-3-yl-methyl-, 6-aminocarbonyl-pyrid-3-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl-, 5-carboxy-fur-2-yl-methyl-, 5-aminocarbonyl-fur-2-yl-methyl-, 1-(5-carboxy-fur-2-yl)-ethyl-, 4-carboxy-thien-2-yl-methyl-, 5-carboxy-thien-2-yl-methyl-, 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, phenoxy-carbonyl-, benzyloxy-carbonyl-, ethylamino-carbonyl-, 3-aminosulfonyl-phenyl-carbonyl-, 6-aminocarbonyl-pyrid-3-yl-carbonyl-, methylsulfonyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-fluorophenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 2-hydroxyphenyl-sulfonyl-, 3-hydroxyphenyl-sulfonyl-, 4-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-methoxy-phenyl-sulfonyl-, 4-methoxy-phenyl-sulfonyl-, 2-trifluoromethyl-phenyl-sulfonyl-, 3-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethyl-phenyl-sulfonyl-, 3-carboxyphenyl-sulfonyl-, 4-carboxyphenyl-sulfonyl-, 3-aminophenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-(methylamino-carbonyl)-phenyl-sulfonyl-, 3-(3-hydroxy-n-propyl-amino-carbonyl)-phenyl-sulfonyl-, 3-fluoro-4-aminocabonyl-phenyl-sulfonyl-, 3-fluoro-4-carboxy-phenyl-sulfonyl-, 3-chloro-4-aminocarbonyl-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl, 3-methyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl-, 3-methoxy-4-aminocarbonyl-phenyl-sulfonyl-, 3-methoxy-4-carboxy-phenyl-sulfonyl-, 3-carboxy-4-chloro-phenyl-sulfonyl-, 3-carboxy-4-fluoro-phenyl-sulfonyl-, 3-aminocarbonyl-4-fluoro-phenyl-sulfonyl-, 3,5-dichloro-4-hydroxy-phenyl-sulfonyl-, 5-(hydroxymethyl)-fur-2-yl-sulfonyl-, 5-carboxy-fur-2-yl-sulfonyl-, 5-(aminocarbonyl)-fur-2-yl-sulfonyl-, 4-carboxy-thien-2-yl-sulfonyl-, 4-(aminocarbonyl)-thien-2-yl-sulfonyl-, 3-methyl-5-carboxy-thien-2-yl-sulfonyl-, 3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl-, 6-carboxy-pyrid-3-yl-sulfonyl-, 6-aminocarbonyl-pyrid-3-yl-sulfonyl- and 6-(methoxycarbonyl-ethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (d) is
  • Figure US20190031618A1-20190131-C00119
  • wherein a is an integer from 0 to 1; wherein L1 is —CH2—; and wherein R5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 3-carboxy-benzyl, 3-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 3-fluoro-5-carboxy-benzyl, 1-(3-carboxyphenyl)-ethyl-, 1R′-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 5-carboxy-pyrimidin-2-yl, 5-aminocarbonyl-pyrid-2-yl-methyl-, 5-aminocarbonyl-pyrid-3-yl-methyl-, 6-aminocarbonyl-pyrid-3-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl-, 5-aminocarbonyl-fur-2-yl-methyl-, 5-carboxy-thien-2-yl-methyl-, 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, benzyloxy-carbonyl-, methylsulfonyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-fluorophenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 3-hydroxyphenyl-sulfonyl-, 4-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-trifluoromethyl-phenyl-sulfonyl-, 4-carboxyphenyl-sulfonyl-, 3-aminophenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl, 3-methyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl-, 3-methoxy-4-aminocarbonyl-phenyl-sulfonyl-, 3-methoxy-4-carboxy-phenyl-sulfonyl-, 5-(aminocarbonyl)-fur-2-yl-sulfonyl-, 4-carboxy-thien-2-yl-sulfonyl-, 4-(aminocarbonyl)-thien-2-yl-sulfonyl-, 3-methyl-5-carboxy-thien-2-yl-sulfonyl-, 3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl- and 6-aminocarbonyl-pyrid-3-yl-sulfonyl-.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (d) is
  • Figure US20190031618A1-20190131-C00120
  • wherein a is an integer from 0 to 1; wherein L1 is —CH2—; and wherein R5 is selected from the group consisting of methoxy-carbonyl-methyl-, 3-(aminocarbonyl)-benzyl, 1R*-(3-carboxyphenyl)-ethyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 3-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl- and 6-aminocarbonyl-pyrid-3-yl-sulfonyl-.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (e); wherein (e) is
  • Figure US20190031618A1-20190131-C00121
  • wherein a is 0; and wherein R5 is selected from the group consisting of ethoxycarbonyl- and trifluoromethyl-sulfonyl-.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (f); wherein (f) is
  • Figure US20190031618A1-20190131-C00122
  • wherein R5 is trifluoromethyl-sulfonyl-.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (g); wherein (g) is
  • Figure US20190031618A1-20190131-C00123
  • wherein b is an integer from 0 to 1; wherein L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—, —CH(CH3)—CH2—, —CH2—CH(CH3)—, —CH2CH2—O—, —CH2—CH(OH)—, —CH(CH3)—CH(OH) and CH2CH2CH2—NH—SO2—; wherein R6 is selected from the group consisting of hydrogen, halogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, C1-2alkoxy, fluorinated C1-2alkoxy, —C(O)OH, —C(O)O—(C1-2alkyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—NH2, —O—(C1-2alkyl)-C(O)—NH2, phenyl, furyl and thienyl; wherein the phenyl, furyl or thienyl is optionally substituted with carboxy; and wherein R7 is selected from the group consisting of hydrogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, C1-2alkoxy, fluorinated C1-2alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl).
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (g); wherein (g) is
  • Figure US20190031618A1-20190131-C00124
  • wherein b is an integer from 0 to 1; and wherein L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—, —CH(CH3)—CH2—, —CH2—CH(CH3)—, —CH2CH2—O—, —CH2—CH(OH)—, —CH(CH3)—CH(OH) and CH2CH2CH2—NH—SO2—; wherein R6 is selected from the group consisting of hydrogen, halogen, hydroxy, C1-2alkoxy, fluorinated C1-2alkyl, —C(O)OH, —C(O)O—(C1-2alkyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—NH2, —O—(C1-2alkyl)-C(O)—NH2, phenyl and thienyl; wherein the phenyl or thienyl is optionally substituted with carboxy; and wherein R7 is selected from the group consisting of hydrogen and fluorinated C1-2alkyl.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (g); wherein (g) is
  • Figure US20190031618A1-20190131-C00125
  • wherein b is an integer from 0 to 1; wherein L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—, —CH(CH3)—CH2—, —CH2—CH(CH3)—, —CH2—CH(R*—CH3)—, —CH2—CH(S*—CH3)—, —CH2CH2—O—, —CH2—CH(OH)—, —CH2—CH(R*—OH), —CH(CH3)—CH(OH) and CH2CH2CH2—NH—SO2—; wherein R6 is selected from the group consisting of hydrogen, 3-bromo, 3-chloro, 4-chloro, 3-hydroxy, 4-hydroxy, 3-methoxy, 4-methoxy, 4-trifluoromethyl, 3-carboxy, 4-carboxy, 3-carboxy-methoxy-, 4-carboxy-methoxy-, 3-methoxycarbonyl-, 4-methoxycarbonyl-, 3-ethoxy-carbonyl-methoxy-, 4-ethoxy-carbonyl-methoxy-, 4-aminocarbonyl-, 3-amino-carbonyl-methoxy-, 4-amino-carbonyl-methoxy-, 3-(3-carboxyphenyl), 3-(4-carboxy-phenyl), 4-(3-carboxyphenyl), 4-(4-carboxyphenyl) and 3-(5-carboxy-thien-2-yl); and wherein R7 is selected from the group consisting of hydrogen and 5-trifluoromethyl.
  • In an embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (g) is
  • Figure US20190031618A1-20190131-C00126
  • wherein b is an integer from 0 to 1; L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—CH2—, —CH2—CH(R*—CH3)—, —CH2—CH(S*—CH3)—, —CH2CH2—O—, —CH2—CH(OH)— and —CH2CH2CH2—NH—SO2—; and wherein R8 is selected from the group consisting of hydrogen, 3-chloro-, 4-chloro-, 3-bromo-, 4-bromo-, 3-hydroxy, 4-hydroxy-, 4-trifluoromethyl, 3-methoxy-, 4-methoxy-, 4-methoxycarbonyl-, 3-(ethoxy-carbonyl-methoxy)-, 4-(ethoxy-carbonyl-methoxy)-, 3-(aminocarbonyl-methoxy)-, 4-(aminocarbonyl-methoxy)-, 3-(3-carboxyphenyl), 3-(4-carboxyphenyl) and 3-(5-carboxy-thein-2-yl); and R7 is selected from the group consisting of hydrogen and 5-trifluoromethyl.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (g) is
  • Figure US20190031618A1-20190131-C00127
  • wherein b is an integer from 0 to 1; L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH2—CH(R*—CH3)—, —CH2CH2—O—, —CH2—CH(OH)— and —CH2CH2CH2—NH—SO2—; and wherein R5 is selected from the group consisting of hydrogen, 3-chloro-, 3-bromo-, 4-bromo-, 3-hydroxy, 4-trifluoromethyl, 3-methoxy-, 4-methoxy-, 3-(ethoxy-carbonyl-methoxy)-, 4-(ethoxy-carbonyl-methoxy)-, and 3-(5-carboxy-thein-2-yl); and R7 is hydrogen.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (g) is
  • Figure US20190031618A1-20190131-C00128
  • wherein b is an integer from 0 to 1; L2 is —CH2CH2—; and wherein R6 is selected from the group consisting of 3-chloro-, 4-trifluoromethyl, 4-methoxy- and 4-(ethoxy-carbonyl-methoxy)-; and R7 is hydrogen.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (g) is
  • Figure US20190031618A1-20190131-C00129
  • wherein b is an integer from 0 to 1; L2 is —CH2CH2—; and wherein R6 is selected from the group consisting of 4-trifluoromethyl, 4-methoxy- and 4-(ethoxy-carbonyl-methoxy)-; and R7 is hydrogen.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (h); wherein (h) is
  • Figure US20190031618A1-20190131-C00130
  • wherein L3 is selected from the group consisting of —CH2—, —CH2CH2— and —CH2CH2—O—; and wherein R8 is selected from the group consisting of hydrogen, -halogen, C1-2alkyl, C1-2alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl).
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (h); wherein (h) is
  • Figure US20190031618A1-20190131-C00131
  • wherein L3 is selected from the group consisting of —CH2— and —CH2CH2—O—; and wherein R8 is selected from the group consisting of hydrogen, —C(O)OH and —C(O)O—(C1-2alkyl).
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (h); wherein (h) is
  • Figure US20190031618A1-20190131-C00132
  • wherein L3 is selected from the group consisting of —CH2— and —CH2CH2—O—; and wherein R8 is selected from the group consisting of hydrogen, carboxy and methoxycarbonyl-. In an embodiment, the present invention is directed to compounds of formula (I) wherein
  • R3 is (h) is
  • Figure US20190031618A1-20190131-C00133
  • wherein L3 is —CH2CH2— and wherein R8 is 5-methoxycarbonyl-.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (i); wherein (i) is
  • Figure US20190031618A1-20190131-C00134
  • wherein c is an integer from 0 to 1; and wherein L4 is selected from the group consisting of —CH2— and —CH2—CH2—.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (i); wherein (i) is
  • Figure US20190031618A1-20190131-C00135
  • wherein c is an integer from 0 to 1; wherein L4 is —CH2—. In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is (i) is
  • Figure US20190031618A1-20190131-C00136
  • wherein c is 1; and wherein L4 is —CH2—.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is selected from the group consisting of 1-(3-fluoro-5-carboxy-benzyl)-piperidin-4-yl, 1-(2-fluoro-5-carboxy-benzyl)-piperidin-4-yl, 1-(5-carboxy-pyrid-2-yl-methyl)-piperidin-4-yl, 1-(6-carboxy-pyrid-2-yl-methyl)-piperidin-4-yl, 1-(5-carboxy-thien-2-yl-methyl)-piperidin-4-yl, 1-(4-carboxy-thien-2-yl-sulfonyl)-piperidin-4-yl, 1-(5-carboxy-fur-2-yl-sulfonyl)-piperidin-4-yl, 1-(3-carboxy-benzyl)-piperidin-4-yl, 1-(3-carboxy-phenyl-sulfonyl)-piperidin-4-yl, 1-(3-hydroxy-phenyl-sulfonyl)-piperidin-4-yl, 1-(4-carboxy-phenyl-sulfonyl)-piperidin-4-yl, 1-trifluoromethyl-sulfonyl-piperidin-4-yl-methyl- and 1-trifluoromethyl-sulfonyl-piperidin-4-yl.
  • In another embodiment, the present invention is directed to compounds of formula (I) wherein R3 is selected from the group consisting of 1-(3-fluoro-5-carboxy-benzyl)-piperidin-4-yl, 1-(2-fluoro-5-carboxy-benzyl)-piperidin-4-yl, 1-(5-carboxy-pyrid-2-yl-methyl)-piperidin-4-yl, 1-(6-carboxy-pyrid-2-yl-methyl)-piperidin-4-yl, 1-(5-carboxy-thien-2-yl-methyl)-piperidin-4-yl, 1-(3-carboxy-benzyl)-piperidin-4-yl, 1-(3-carboxy-phenyl-sulfonyl)-piperidin-4-yl, 1-(3-hydroxy-phenyl-sulfonyl)-piperidin-4-yl, 1-trifluoromethyl-sulfonyl-piperidin-4-yl-methyl-, 1-trifluoromethyl-sulfonyl-piperidin-4-yl.
  • In additional embodiments, the present invention is directed to compounds of formula (I) wherein the substituents selected for the variables defined herein (e.g.
  • Figure US20190031618A1-20190131-C00137
  • R0, R1, R2 and R3, etc.) are independently selected to be any individual substituent or any subset of substituents selected from the substituents found on compounds listed in Table BIO-1 as exhibiting CB-1 binding EC50 (as measured according to the procedure described in Biological Example 1) of less than about 0.1 μM, preferably exhibiting CB-1 binding EC50 of less than about 0.01 μM, more preferably, exhibiting CB-1 binding EC50 less than about 0.05 μM, more preferably, exhibiting CB-1 binding EC50 less than about 0.025 μM.
  • Additional embodiments, the present invention is directed to compound of formula (I), wherein the substituents selected for one or more of the variables defined herein (e.g.
  • Figure US20190031618A1-20190131-C00138
  • R0, R1, R2 and R3, etc.) are independently selected to be any individual substituent or any subset of substituents selected from the complete list as defined herein.
  • Additional embodiments of the present invention, include those wherein the substituents selected for one or more of the variables defined herein (e.g.
  • Figure US20190031618A1-20190131-C00139
  • R0, R1, R2 and R3, etc.) are independently selected to be any individual substituent or subset of substituents selected from those exemplified in the Tables which follow herein.
  • In additional embodiments, the present invention is directed to any single compound or subset of compounds selected from the representative compounds listed in Tables 1-5 below.
  • Representative compounds of the present invention are as listed in Tables 1-5, below. Unless otherwise noted, wherein a stereogenic center is present in the listed compound, the compound was prepared as a mixture of stereo-configurations. Where a stereogenic center is present, the S*— and R* designations are intended to indicate that the exact stereo-configuration of the center has not been determined.
  • TABLE 1
    Representative Compounds of Formula (I)
    Figure US20190031618A1-20190131-C00140
    ID No.
    Figure US20190031618A1-20190131-C00141
    Figure US20190031618A1-20190131-C00142
         		R2 Stereo* R4
    21 4-chloro- 4-chloro- cyclo- trans- 4-carboxy-phenyl-
    phenyl phenyl propyl cyclohexyl sulfonyl-amino-
    22 4-chloro- 4-chloro- cyclo- trans- 3-carboxy-phenyl-
    phenyl phenyl propyl cyclohexyl sulfonyl-amino-
    28 4-chloro- 4-chloro- cyclo- trans- 3-hydroxy-phenyl-
    phenyl phenyl propyl cyclohexyl amino-
    29 4-chloro- 4-chloro- cyclo- cis- 3-hydroxy-phenyl-
    phenyl phenyl propyl cyclohexyl amino-
    30 4-chloro- 4-chloro- cyclo- trans- 4-carboxy-phenyl-
    phenyl phenyl propyl cyclohexyl amino-
    31 4-chloro- 4-chloro- cyclo- trans- 3-carboxy-phenyl-
    phenyl phenyl propyl cyclohexyl amino-
    32 4-chloro- 4-chloro- cyclo- cis- 4-carboxy-phenyl-
    phenyl phenyl propyl cyclohexyl amino-
    40 4-chloro- 4-chloro- cyclo- cis- 3-carboxy-phenyl-
    phenyl phenyl propyl cyclohexyl amino-
    42 4-chloro- 4-chloro- cyclo- cis- 4-carboxy-phenyl-
    phenyl phenyl propyl cyclohexyl sulfonyl-amino-
    43 4-chloro- 4-chloro- cyclo- cis- 3-carboxy-phenyl-
    phenyl phenyl propyl cyclohexyl sulfonyl-amino-
    134 4-chloro- 4-chloro- cyclo- trans- carboxy
    phenyl phenyl propyl cyclohexyl
    135 4-chloro- 4-chloro- cyclo- trans- amino-carbonyl-
    phenyl phenyl propyl cyclohexyl
    136 4-chloro- 4-chloro- cyclo- cis- amino-carbonyl-
    phenyl phenyl propyl cyclohexyl
    137 4-chloro- 4-chloro- cyclo- cis- carboxy
    phenyl phenyl propyl cyclohexyl
    442 4-chloro- thiazol-2- 4- cyclohexyl H
    phenyl yl chloro-
    phenyl
    444 4-chloro- thiazol-2- 2,4- cyclohexyl H
    phenyl yl dichloro-
    phenyl
    446 4-chloro- thiazol-2- methyl cyclohexyl H
    phenyl yl
    465 4-chloro- thiazol-2- H cyclohexyl H
    phenyl yl
    *The column headed “Stereo” indicates the stereo-orientation of the bonds at the 1- and 4-positions of the cyclohexyl ring. Where neither “cis-” nor “trans-” is indicated, the compound was prepared as a racemate.
  • TABLE 2
    Representative Compounds of Formula (I)
    Figure US20190031618A1-20190131-C00143
    ID No. R0
    Figure US20190031618A1-20190131-C00144
    Figure US20190031618A1-20190131-C00145
         		R2 (L2)b R6 and R7*
    6 H 4-chloro- 4-chloro- cyclo- —CH2CH2— 3-(5-carboxy-
    phenyl phenyl propyl thien-2-yl)
    7 H 4-chloro- 4-chloro- cyclo- —CH2CH2O— 3-bromo
    phenyl phenyl propyl
    8 H 4-chloro- 4-chloro- cyclo- —CH2CH2—CH2—NH—SO2— 3-(4-carboxy-
    phenyl phenyl propyl phenyl)
    9 H 4-chloro- 4-chloro- cyclo- —CH2CH2—CH2—NH—SO2— 3-bromo
    phenyl phenyl propyl
    11 H 4-chloro- 4-chloro- cyclo- —CH2CH2— 3-(3-carboxy-
    phenyl phenyl propyl phenyl)
    16 H 4-chloro- 4-chloro- cyclo- —CH2CH2O— 3-carboxy-5-
    phenyl phenyl propyl trifluoro-
    methyl
    17 H 4-chloro- 4-chloro- cyclo- —CH2CH2— 3-(4-carboxy-
    phenyl phenyl propyl phenyl)
    18 H 4-chloro- 4-chloro- cyclo- —CH2CH2O— 3-methoxy-
    phenyl phenyl propyl carbonyl-5-
    trifluoro-
    methyl-
    19 H 4-chloro- 4-chloro- cyclo- —CH2CH2— 3-bromo
    phenyl phenyl propyl
    20 H 4-chloro- 4-chloro- cyclo- —CH2CH2— 3-bromo
    phenyl phenyl propyl
    23 H 4-chloro- 4-chloro- cyclo- —CH2CH2O— 3-carboxy
    phenyl phenyl propyl
    24 H 4-chloro- 4-chloro- cyclo- —CH2CH2— 4-(3-carboxy-
    phenyl phenyl propyl phenyl)
    25 H 4-chloro- 4-chloro- cyclo- —CH2CH2— 4-(4-carboxy-
    phenyl phenyl propyl phenyl)
    26 H 4-chloro- 4-chloro- cyclo- —CH2CH2O— 3-methoxy-
    phenyl phenyl propyl carbonyl-
    27 H 4-chloro- 4-chloro- cyclo- —CH2CH2— 4-bromo
    phenyl phenyl propyl
    35 H 4-chloro- 4-chloro- cyclo- —CH2CH2O— 4-carboxy
    phenyl phenyl propyl
    36 H 4-chloro- 4-chloro- cyclo- —CH2CH2O— 4-methoxy-
    phenyl phenyl propyl carbonyl-
    37 H 4-chloro- 4-chloro- cyclo- —CH2CH2— 4-hydroxy
    phenyl phenyl propyl
    38 H 4-chloro- 4-chloro- cyclo- —CH2CH2— 4-carboxy
    phenyl phenyl propyl
    132 H 4-chloro- 4-chloro- cyclo- —CH2— 4-carboxy
    phenyl phenyl propyl
    133 H 4-chloro- 4-chloro- cyclo- —CH2— 4-amino-
    phenyl phenyl propyl carbonyl
    144 H 4-chloro- 4-chloro- cyclo- —CH2— 3-(ethoxy-
    phenyl phenyl propyl carbonyl-
    methoxy-)
    145 H 4-chloro- 4-chloro- cyclo- —CH2— 3-hydroxy
    phenyl phenyl propyl
    146 H 4-chloro- 4-chloro- cyclo- —CH2— 3-methoxy
    phenyl phenyl propyl
    165 H 4-chloro- 4-chloro- cyclo- b = 0 4-carboxy-
    phenyl phenyl propyl methoxy-
    169 H 4-chloro- 4-chloro- cyclo- b = 0 4-amino-
    phenyl phenyl propyl carbonyl-
    methoxy-
    170 H 4-chloro- 4-chloro- cyclo- b = 0 4-ethoxy-
    phenyl phenyl propyl carbonyl-
    methoxy-
    171 H 4-chloro- 4-chloro- cyclo- b = 0 4-hydroxy
    phenyl phenyl propyl
    172 H 4-chloro- 4-chloro- cyclo- b = 0 3-amino-
    phenyl phenyl propyl carbonyl-
    methoxy-
    173 H 4-chloro- 4-chloro- cyclo- b = 0 3-ethoxy-
    phenyl phenyl propyl carbonyl-
    methoxy-
    174 H 4-chloro- 4-chloro- cyclo- b = 0 3-carbonyl-
    phenyl phenyl propyl methoxy-
    175 H 4-chloro- 4-chloro- cyclo- —CH2— 4-ethoxy-
    phenyl phenyl propyl carbonyl-
    methoxy-
    176 H 4-chloro- 4-chloro- cyclo- —CH2— 4-carboxy-
    phenyl phenyl propyl methoxy-
    177 H 4-chloro- 4-chloro- cyclo- —CH2— 4-methoxy
    phenyl phenyl propyl
    179 H 4-chloro- 4-chloro- cyclo- b = 0 4-methoxy
    phenyl phenyl propyl
    180 H 4-chloro- 4-chloro- cyclo- b = 0 3-hydroxy
    phenyl phenyl propyl
    181 H 4-chloro- 4-chloro- cyclo- b = 0 3-methoxy
    phenyl phenyl propyl
    182 H 4-chloro- 4-chloro- cyclo- —CH2— 4-amino-
    phenyl phenyl propyl carbonyl-
    methoxy-
    183 H 4-chloro- 4-chloro- cyclo- —CH2— 4-hydroxy
    phenyl phenyl propyl
    268 OH 4-chloro- 4-chloro- cyclo- —CH2—CH(OH)— —
    phenyl phenyl propyl
    286 H 4-chloro- 4-chloro- ethyl —CH(CH3)—CH2— 4-chloro
    phenyl phenyl
    289 H 4-chloro- 4-chloro- cyclo- —CH2—CH(R*—OH)  —
    phenyl phenyl propyl
    299 H 4-chloro- 4-chloro- cyclo- —CH(CH3)—CH(OH)— —
    phenyl phenyl propyl
    301 H 4-chloro- 4-chloro- cyclo- —CH2—CH(OH)— —
    phenyl phenyl propyl
    305 H phenyl phenyl cyclo- —CH2—CH(S*—CH3)  —
    propyl
    306 H phenyl 4-chloro- cyclo- —CH2—CH(S*—CH3)  —
    phenyl propyl
    309 H 4-chloro- 4-chloro- cyclo- —CH2CH2— 4-trifluoro-
    phenyl phenyl propyl methyl-
    311 H 4-chloro- 4-chloro- ethyl —CH2CH2— 3-chloro
    phenyl phenyl
    312 H 4-chloro- 4-chloro- ethyl —CH2—CH(S*—CH3)  —
    phenyl phenyl
    313 H 4-chloro- 4-chloro- methyl —CH2—CH(S*—CH3)  —
    phenyl phenyl
    314 H 4-chloro- 4-chloro- ethyl —CH2CH2 4-trifluoro-
    phenyl phenyl methyl-
    317 H 4-chloro- 4-chloro- ethyl —CH2—CH(R*—CH3)— —
    phenyl phenyl
    329 H 4-chloro- thiazol-2- —CHF2 —CH(CH3)—CH2— 4-chloro
    phenyl yl
    330 H 4-chloro- thiazol-2- ethyl —CH(CH3)—CH2— 4-chloro
    phenyl yl
    331 H 4-chloro- thiazol-2- cyclo- —CH(CH3)—CH2— 4-chloro
    phenyl yl propyl
    333 H 4-chloro- thiazol-2- cyclo- —CH2—CH(OH)— 4-chloro
    phenyl yl propyl
    334 H 4-chloro- thiazol-2- ethyl —CH2—CH(OH)— 4-chloro
    phenyl yl
    336 H 4-chloro- thiazol-2- cyclo- —CH2—CH(CH3)— 4-chloro
    phenyl yl propyl
    337 H 4-chloro- thiazol-2- 2,2,2- —CH2—CH(CH3)— 4-chloro
    phenyl yl trifluoro-
    ethyl
    338 H 4-chloro- thiazol-2- cyclo- —CH2CH2— 4-chloro
    phenyl yl propyl
    339 OH 4-chloro- thiazol-2- 2,2,2- —CH2CH2— 3-chloro
    phenyl yl trifluoro-
    ethyl
    340 H 4-chloro- thiazol-2- 2,2,2- —CH2CH2— 3-chloro
    phenyl yl trifluoro-
    ethyl
    374 H 4-chloro- thiazol-2- —CH2—OH b = 0 3-chloro
    phenyl yl
    375 H 4-chloro- thiazol-2- thien-3-yl b = 0 3-chloro
    phenyl yl
    376 H 4-chloro- thiazol-2- fur-3-yl b = 0 3-chloro
    phenyl yl
    377 H 4-chloro- thiazol-2- fur-2-yl b = 0 3-chloro
    phenyl yl
    401 H 4-chloro- thiazol-2- cyclo- —CH(CH3)— 4-chloro
    phenyl yl propyl
    402 H 4-chloro- thiazol-2- iso-propyl b = 0 3-chloro
    phenyl yl
    404 H 4-chloro- thiazol-2- azetidin- —CH2CH2— 3-chloro
    phenyl yl 3-yl
    405 OH 4-chloro- thiazol-2- H —CH2CH2— 3-chloro
    phenyl yl
    406 H 4-chloro- thiazol-2- 1-t- —CH2CH2— 3-chloro
    phenyl yl butoxy-
    carbonyl-
    azetidin-
    3-yl
    409 H 4-chloro- thiazol-2- ethyl —CH2CH2— 3-chloro
    phenyl yl
    410 H 4-chloro- thiazol-2- n-propyl —CH2CH2— 3-chloro
    phenyl yl
    423 H 4-chloro- thiazol-2- cyclo- —CH2CH2— 3-chloro
    phenyl yl propyl
    424 H 4-chloro- thiazol-2- —CF3 —CH2CH2— 3-chloro
    phenyl yl
    429 H 4-chloro- thiazol-2- —C(O)O— b = 0 3-chloro
    phenyl yl CH2CH3
    431 H 4-chloro- thiazol-2- n-propyl b = 0 3-chloro
    phenyl yl
    432 H 4-chloro- thiazol-2- cyclo- b = 0 3-chloro
    phenyl yl propyl
    433 H 4-chloro- thiazol-2- isobutyl b = 0 3-chloro
    phenyl yl
    434 H 4-chloro- thiazol-2- ethyl b = 0 3-chloro
    phenyl yl
    435 H 4-chloro- thiazol-2- H b = 0 3-chloro
    phenyl yl
    436 H 4-chloro- thiazol-2- methyl b = 0 3-chloro
    phenyl yl
    437 H 4-chloro- thiazol-2- methyl —CH2CH2— 3-chloro
    phenyl yl
    438 H 4-chloro- thiazol-2- H —CH2CH2— 3-chloro
    phenyl yl
    449 H 4-chloro- 4-t-butyl- H —CH2— 4-chloro
    phenyl thiazol-2-
    yl
    451 H 4-chloro- 5-ethyl- methyl —CH2— 4-chloro
    phenyl thiazol-2-
    yl
    452 H 4-chloro- 4-ethyl- methyl —CH2— 4-chloro
    phenyl thiazol-2-
    yl
    455 H 4-chloro- 4- methyl —CH2— 4-chloro
    phenyl trifluoro-
    methyl-
    thiazol-2-
    yl
    456 H 4-chloro- 4-ethyl- 4-chloro- —CH2— 4-chloro
    phenyl thiazol-2- phenyl
    yl
    460 H 4-chloro- 4-ethyl- H —CH2— 4-chloro
    phenyl thiazol-2-
    yl
    462 H 4-chloro- 4- H —CH2— 4-chloro
    phenyl trifluoro-
    methyl-
    thiazol-2-
    yl
    463 H 4-chloro- thiazol-2- methyl —CH2— 4-chloro
    phenyl yl
    464 H 4-chloro- thiazol-2- 4-chloro- —CH2— 4-chloro
    phenyl yl phenyl
    466 H 4-chloro- thiazol-2- H —CH2— 4-chloro
    phenyl yl
    474 H 2-chloro- thiazol-2- H —CH2— —
    phenyl yl
    *In the column titled “R6 and R7”, if no substituent group(s) are listed, then both R6 and R7 are hydrogen; if only one substituent group is listed, then one of R6 or R7 is hydrogen.
  • TABLE 3
    Representative Compounds of Formula (I)
    Figure US20190031618A1-20190131-C00146
    ID No. R0
    Figure US20190031618A1-20190131-C00147
    Figure US20190031618A1-20190131-C00148
         		R2 R3
    33 H 4-chloro- 4-chloro- cyclo- 5-carboxy-pyrid-
    phenyl phenyl propyl 2-yl-O—CH2CH2—
    34 H 4-chloro- 4-chloro- cyclo- 5-(methoxy-carbonyl)-
    phenyl phenyl propyl pyrid-2-yl-O—CH2CH2—
    119 H 4-chloro- 4-chloro- cyclo- tetrahydro-pyran-4-yl
    phenyl phenyl propyl
    120 H 4-chloro- 4-chloro- cyclo- tetrahydro-pyran-4-yl-
    phenyl phenyl propyl CH2—
    297 H 4-chloro- 4-chloro- ethyl 2,3-dihydro-1H-inden-2-
    phenyl phenyl yl
    298 H 4-chloro- 4-chloro- H 2,3-dihydro-1H-inden-2-
    phenyl phenyl yl
    300 H 4-chloro- 4-chloro- cyclo- 2,3-dihydro-1H-inden-2-
    phenyl phenyl propyl yl
    341 OH 4-chloro- thiazol-2-yl cyclo- 1,2,3,4-tetrahydro-
    phenyl propyl naphth-2-yl
    342 H 4-chloro- thiazol-2-yl cyclo- 1,2,3,4-tetrahydro-
    phenyl propyl naphth-2-yl
    361 H 4-chloro- thiazol-2-yl methyl 2,3-dihydro-1H-inden-2-
    phenyl yl
    362 H 4-chloro- thiazol-2-yl cyclo- 2,3-dihydro-1H-inden-2-
    phenyl propyl yl
    403 H 4-chloro- thiazol-2-yl cyclo- pyrid-2-yl-CH2—
    phenyl propyl
  • TABLE 4
    Representative Compounds of Formula (I)
    Figure US20190031618A1-20190131-C00149
    ID No. R0
    Figure US20190031618A1-20190131-C00150
    Figure US20190031618A1-20190131-C00151
         		R1 R2 (L1)a R5
    1 H 4-chloro- 4-chloro- H cyclo- —CH2— 4-carboxy-
    phenyl phenyl propyl phenyl
    2 H 4-chloro- 4-chloro- H cyclo- —CH2— 4-carboxy-
    phenyl phenyl propyl pyrimidin-2-
    yl
    3 H 4-chloro- 4-chloro- H cyclo- a = 0 3-(hex-2-en-
    phenyl phenyl propyl 1-yloxy)-
    benzyl
    4 H 4-chloro- 4-chloro- H cyclo- —CH2— 5-carboxy-
    phenyl phenyl propyl pyrimidin-2-
    yl
    5 H 4-chloro- 4-chloro- H cyclo- —CH2— 5-methoxy-
    phenyl phenyl propyl carbonyl-
    pyrimidin-2-
    yl
    10 H 4-chloro- 4-chloro- H cyclo- —CH2— 3-carboxy-
    phenyl phenyl propyl benzyl
    12 —CO2H 4-chloro- 4-chloro- H cyclo- —CH2— trifluoro-
    phenyl phenyl propyl methyl-
    sulfonyl
    13 H 4-chloro- 4-chloro- H cyclo- —CH2— 3-methoxy-
    phenyl phenyl propyl carbonyl-
    phenyl
    14 —C(O)—OCH3 4-chloro- 4-chloro- H cyclo- —CH2— trifluoro-
    phenyl phenyl propyl methyl-
    sulfonyl
    15 H 4-chloro- 4-chloro- H cyclo- —CH2— 4-carboxy-
    phenyl phenyl propyl phenyl-
    sulfonyl
    41 —OH 4-chloro- 4-chloro- H cyclo- a = 0 t-butoxy-
    phenyl phenyl propyl carbonyl-
    44 H 4-chloro- 4-chloro- H cyclo- a = 0 3-carboxy-
    phenyl phenyl propyl phenyl-ox-
    ethyl-
    45 H 4-chloro- 4-chloro- H cyclo- a = 0 piperazin-
    phenyl phenyl propyl 1yl-ethyl-
    sulfonyl-
    46 H 4-chloro- 4-chloro- H cyclo- a = 0 amino-ethyl-
    phenyl phenyl propyl sulfonyl-
    47 H 4-chloro- 4-chloro- H cyclo- a = 0 1R*-(3-
    phenyl phenyl propyl carboxy-
    phenyl)-
    ethyl-
    48 H 4-chloro- 4-chloro- H cyclo- a = 0 1R*-(3-
    phenyl phenyl propyl carboxy-
    phenyl)-
    ethyl-
    49 H 4-chloro- 4-chloro- H cyclo- a = 0 1-(3-
    phenyl phenyl propyl carboxy-
    phenyl)-n-
    propyl
    50 H 4-chloro- 4-chloro- H cyclo- a = 0 phenyl-
    phenyl phenyl propyl amino-
    carbonyl-
    52 H 4-chloro- 4-chloro- H cyclo- a = 0 3-amino-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    55 H 4-chloro- 4-chloro- H cyclo- a = 0 5-(hydroxy-
    phenyl phenyl propyl methyl)-fur-
    2-yl-sulfonyl-
    56 H 4-chloro- 4-chloro- H cyclo- a = 0 1-(3-
    phenyl phenyl propyl hydroxy-
    phenyl)-
    ethyl-
    59 H 4-chloro- 4-chloro- H cyclo- a = 0 1-(4-
    phenyl phenyl propyl carboxy-
    pyrid-2-yl)-
    ethyl-
    61 H 4-chloro- 4-chloro- H cyclo- a = 0 phenoxy-
    phenyl phenyl propyl carbonyl-
    63 H 4-chloro- 4-chloro- H cyclo- a = 0 carboxy-
    phenyl phenyl propyl methyl-
    64 H 4-chloro- 4-chloro- H cyclo- a = 0 methoxy-
    phenyl phenyl propyl carbonyl-
    methyl-
    69 H 4-chloro- 4-chloro- H cyclo- a = 0 benzyloxy-
    phenyl phenyl propyl carbonyl-
    70 H 4-chloro- 4-chloro- H cyclo- a = 0 3-(2-
    phenyl phenyl propyl hydroxy-
    ethyl-amino-
    carbonyl)-
    benzyl
    71 H 4-chloro- 4-chloro- H cyclo- a = 0 cyclopentyl-
    phenyl phenyl propyl oxy-
    carbonyl-
    72 H 4-chloro- 4-chloro- H 2- a = 0 3-methoxy-
    phenyl phenyl carboxy- carbonyl-
    ethyl- benzyl
    73 H 4-chloro- 4-chloro- H cyclo- a = 0 ethyl-amino-
    phenyl phenyl propyl carbonyl-
    74 H 4-chloro- 4-chloro- H cyclo- a = 0 cyclopentyl-
    phenyl phenyl propyl amino-
    carbonyl-
    75 H 4-chloro- 4-chloro- H cyclo- a = 0 benzyl-
    phenyl phenyl propyl amino-
    carbonyl-
    76 H 4-chloro- 4-chloro- H cyclo- a = 0 propyn-3-yl
    phenyl phenyl propyl
    77 H 4-chloro- 4-chloro- H amino- a = 0 3-carboxy-
    phenyl phenyl ethyl- benzyl
    78 H 4-chloro- 4-chloro- H 2- a = 0 trifluoro-
    phenyl phenyl carboxy- methyl-
    ethyl- sulfonyl
    79 H 4-chloro- 4-chloro- H cyclo- a = 0 2-hydroxy-3-
    phenyl phenyl propyl carboxy-
    benzyl
    80 H 4-chloro- 4-chloro- H cyclo- a = 0 2-trifluoro-
    phenyl phenyl propyl methyl-5-
    carboxy-
    benzyl
    81 H 4-chloro- 4-chloro- H cyclo- a = 0 3-carboxy-4-
    phenyl phenyl propyl hydroxy-
    benzyl
    82 H 4-chloro- 4-chloro- H cyclo- a = 0 2-hydroxy-5-
    phenyl phenyl propyl carboxy-
    benzyl
    83 H 4-chloro- 4-chloro- H cyclo- a = 0 2-carboxy-
    phenyl phenyl propyl pyrid-4-yl-
    methyl-
    84 H 4-chloro- 4-chloro- H cyclo- a = 0 2-trifluoro-
    phenyl phenyl propyl methyl-
    benzyl
    85 H 4-chloro- 4-chloro- H cyclo- a = 0 2-fluoro-3-
    phenyl phenyl propyl carboxy-
    benzyl
    86 H 4-chloro- 4-chloro- H cyclo- a = 0 1-(5-
    phenyl phenyl propyl carboxy-fur-
    2-yl)-ethyl
    87 H 4-chloro- 4-chloro- H cyclo- a = 0 1-(3-
    phenyl phenyl propyl carboxy-
    phenyl)-ethyl
    88 H 4-chloro- 4-chloro- H cyclo- a = 0 4-carboxy-
    phenyl phenyl propyl pyrid-2-yl-
    methyl-
    89 H 4-chloro- 4-chloro- H cyclo- a = 0 3-fluoro-5-
    phenyl phenyl propyl carboxy-
    benzyl
    90 H 4-chloro- 4-chloro- H cyclo- a = 0 3-hydroxy-
    phenyl phenyl propyl benzyl
    91 H 4-chloro- 4-chloro- H cyclo- a = 0 2-chloro-3-
    phenyl phenyl propyl carboxy-
    benzyl
    92 H 4-chloro- 4-chloro- H cyclo- a = 0 2-fluoro-5-
    phenyl phenyl propyl carboxy-
    benzyl
    93 H 4-chloro- 4-chloro- H cyclo- a = 0 3-trifluoro-
    phenyl phenyl propyl methyl-5-
    carboxy-
    benzyl
    94 H 4-chloro- 4-chloro- H cyclo- a = 0 2-chloro-5-
    phenyl phenyl propyl carboxy-
    benzyl
    95 H 4-chloro- 4-chloro- H cyclo- a = 0 3-carboxy-4-
    phenyl phenyl propyl fluoro-benzyl
    96 H 4-methyl- 4-methyl- H cyclo- a = 0 3-carboxy-
    phenyl phenyl propyl benzyl
    97 H 4-fluoro- 4-fluoro- H cyclo- a = 0 3-carboxy-
    phenyl phenyl propyl benzyl
    98 H 4-chloro- 4-fluoro- H cyclo- a = 0 3-carboxy-
    phenyl phenyl propyl benzyl
    99 H 4-chloro- 4- H cyclo- a = 0 3-carboxy-
    phenyl trifluoro- propyl benzyl
    methyl-
    phenyl
    100 H 4-chloro- 4-methyl- H cyclo- a = 0 3-carboxy-
    phenyl phenyl propyl benzyl
    101 H 4-chloro- phenyl H cyclo- a = 0 3-carboxy-
    phenyl propyl benzyl
    102 H 4-chloro- 4-chloro- H cyclo- a = 0 2,3,4-
    phenyl phenyl propyl trihydroxy-n-
    butyl-oxy-
    carbonyl
    104 H 4-chloro- 4-chloro- H cyclo- a = 0 6-amino-
    phenyl phenyl propyl carbonyl-
    pyrid-2-yl-
    methyl-
    105 H 4-chloro- 4-chloro- H cyclo- a = 0 6-amino-
    phenyl phenyl propyl carbonyl-
    pyrid-3-yl-
    methyl-
    106 H 4-chloro- 4-chloro- H cyclo- a = 0 6-carboxy-
    phenyl phenyl propyl pyrid-3-yl-
    methyl-
    118 H 4-chloro- 4-chloro- H —C(═CH2)—CH2OH a = 0 trifluoro-
    phenyl phenyl methyl-
    sulfonyl
    121 H 4-chloro- 4-chloro- H cyclo- a = 0 5-amino-
    phenyl phenyl propyl carbonyl-
    pyrid-3-yl-
    methyl-
    122 H 4-chloro- 4-chloro- H cyclo- a = 0 5-amino-
    phenyl phenyl propyl carbonyl-
    pyrid-2-yl-
    methyl-
    123 H 4-chloro- 4-chloro- H cyclo- a = 0 5-carboxy-
    phenyl phenyl propyl pyrid-3-yl-
    methyl-
    124 H 4-chloro- 4-chloro- H cyclo- a = 0 5-carboxy-
    phenyl phenyl propyl pyrid-2-yl-
    methyl-
    125 H 4-chloro- 4-chloro- H cyclo- a = 0 6-carboxy-
    phenyl phenyl propyl pyrid-2-yl-
    methyl-
    126 H 4-chloro- 4-chloro- H cyclo- a = 0 5-amino-
    phenyl phenyl propyl carbonyl-
    thien-2-yl-
    methyl-
    127 H 4-chloro- 4-chloro- H cyclo- a = 0 4-amino-
    phenyl phenyl propyl carbonyl-
    thien-2-yl-
    methyl-
    128 H 4-chloro- 4-chloro- H cyclo- a = 0 5-carboxy-
    phenyl phenyl propyl thien-2-yl-
    methyl-
    129 H 4-chloro- 4-chloro- H cyclo- a = 0 5-carboxy-
    phenyl phenyl propyl fur-2-yl-
    methyl-
    130 H 4-chloro- 4-chloro- H cyclo- a = 0 4-carboxy-
    phenyl phenyl propyl thien-2-yl-
    methyl-
    131 H 4-chloro- 4-chloro- H cyclo- a = 0 5-amino-
    phenyl phenyl propyl carbonyl-fur-
    2-yl-methyl-
    138 H 4-chloro- 4-chloro- H cyclo- a = 0 4-amino-
    phenyl phenyl propyl carbonyl-
    benzyl
    140 H 4-chloro- 4- H cyclo- a = 0 trifluoro-
    phenyl phenyl propyl methyl-
    sulfonyl
    141 H 4-chloro- 4-chloro- H cyclo- a = 0 3-amino-
    phenyl phenyl propyl carbonyl-
    benzyl
    142 H 4-chloro- 4-chloro- H cyclo- a = 0 4-(amino-
    phenyl phenyl propyl carbonyl-
    methoxy)-
    phenyl
    143 —CH2—O—CH2—CO2H 4-chloro- 4-chloro- H cyclo- a = 0 trifluoro-
    phenyl phenyl propyl methyl-
    sulfonyl
    147 H 4-chloro- 4-chloro- H cyclo- a = 0 4-carboxy-
    phenyl phenyl propyl benzyl
    148 H 4-chloro- 4-chloro- H cyclo- a = 0 3-carboxy-
    phenyl phenyl propyl benzyl
    150 —OH 4-chloro- 4- H cyclo- a = 0 trifluoro-
    phenyl carboxy- propyl methyl-
    phenyl sulfonyl
    151 H 4-chloro- 4-chloro- H cyclo- a = 0 4-amino-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    152 H 4-chloro- 4-chloro- H cyclo- a = 0 4-(carboxy-
    phenyl phenyl propyl methoxy)-
    phenyl
    153 H 4-chloro- 4-chloro- H cyclo- a = 0 3-(amino-
    phenyl phenyl propyl carobnyl-
    methoxy)-
    phenyl
    154 H 4-chloro- 4-chloro- H cyclo- a = 0 3-(carboxy-
    phenyl phenyl propyl methoxy)-
    phenyl
    155 H 4-chloro- 4-chloro- H cyclo- a = 0 3-amino-
    phenyl phenyl propyl carbonyl-
    methyl-
    phenyl
    157 H 4-chloro- 4-chloro- H cyclo- a = 0 4-carboxy-
    phenyl phenyl propyl methyl-
    phenyl
    158 H 4-chloro- 4-chloro- H cyclo- a = 0 3-carboxy-
    phenyl phenyl propyl methyl-
    phenyl
    159 H 4-chloro- 4-chloro- H cyclo- a = 0 4-carboxy-
    phenyl phenyl propyl phenyl)
    160 H 4-chloro- 4-chloro- H cyclo- a = 0 4-amino-
    phenyl phenyl propyl carbonyl-
    methyl-
    phenyl
    161 H 4-chloro- 4-chloro- H cyclo- a = 0 4-amino-
    phenyl phenyl propyl carbonyl-
    phenyl
    162 H 4-chloro- 4-chloro- H cyclo- a = 0 3-amino-
    phenyl phenyl propyl carbonyl-
    phenyl
    163 H 4-chloro- 4-chloro- H cyclo- a = 0 3-carboxy-
    phenyl phenyl propyl phenyl
    164 H 4-chloro- 4-chloro- H cyclo- a = 0 6-(methoxy-
    phenyl phenyl propyl carbonyl-
    ethyl-amino-
    carbonyl)-
    pyrid-3-yl-
    sulfonyl-
    166 H 4-chloro- 4-chloro- H cyclo- a = 0 3-trifluoro-
    phenyl phenyl propyl methyl-4-
    carboxy-
    phenyl-
    sulfonyl-
    167 H 4-chloro- 4-chloro- H cyclo- a = 0 6-(carboxy-
    phenyl phenyl propyl ethyl-amino-
    carbonyl)-
    pyrid-3-yl-
    sulfonyl
    168 H 4-chloro- 4-chloro- H cyclo- a = 0 3-amino-
    phenyl phenyl propyl carbonyl-4-
    methyl-
    phenyl-
    sulfonyl-
    178 —CH2—OCH3 4-chloro- 4-chloro- H cyclo- a = 0 3-chloro-4-
    phenyl phenyl propyl carboxy-
    phenyl-
    sulfonyl-
    184 H 4-chloro- 4-chloro- H cyclo- a = 0 3-trifluoro-
    phenyl phenyl propyl methyl-4-
    amino-
    carbonyl-
    phenyl-
    sulfonyl
    185 H 4-chloro- 4-chloro- H cyclo- a = 0 3-(carboxy-
    phenyl phenyl propyl ethyl-amino-
    carbonyl)-
    phenyl-
    sulfonyl
    186 H 4-chloro- 4-chloro- H cyclo- a = 0 3-
    phenyl phenyl propyl methylamino-
    carbonyl-
    phenyl-
    sulfonyl-
    187 H 4-chloro- 4-chloro- H cyclo- a = 0 3-amino-
    phenyl phenyl propyl carbonyl-4-
    methoxy-
    phenyl-
    sulfonyl-
    188 H 4-chloro- 4-chloro- H cyclo- a = 0 3-carboxy-4-
    phenyl phenyl propyl methyl-
    phenyl-
    sulfonyl-
    189 H 4-chloro- 4-chloro- H cyclo- a = 0 3-fluoro-4-
    phenyl phenyl propyl amino-
    carbonyl-
    phenyl-
    sulfonyl-
    190 H 4-chloro- 4-chloro- H cyclo- a = 0 3-fluoro-4-
    phenyl phenyl propyl carboxy-
    phenyl-
    sulfonyl-
    191 H 4-chloro- 4-chloro- H cyclo- a = 0 3-(3-
    phenyl phenyl propyl hydroxy-n-
    propyl-
    amino-
    carbonyl)-
    phenyl-
    sulfonyl-
    192 —CH2—OH 4-chloro- 4-chloro- H cyclo- a = 0 3-methoxy-
    phenyl phenyl propyl 4-amino-
    carbonyl-
    phenyl-
    sulfonyl-
    193 —CH2—OH 4-chloro- 4-chloro- H cyclo- a = 0 3-methoxy-
    phenyl phenyl propyl 4-carboxy-
    phenyl-
    sulfonyl-
    198 H phenyl phenyl H cyclo- a = 0 1,2,3-triazol-
    propyl 4-yl-
    carbonyl-
    199 H 4-chloro- 4-chloro- H cyclo- a = 0 1,2,3-triazol-
    phenyl phenyl propyl 4-yl-
    carbonyl-
    200 H phenyl phenyl H cyclo- a = 0 1,2,4-triazol-
    propyl 3-yl-
    carbonyl-
    201 H 4-chloro- 4-chloro- H cyclo- a = 0 1,2,4-triazol-
    phenyl phenyl propyl 3-yl-
    carbonyl-
    202 H 4-chloro- 4-chloro- —OH cyclo- a = 0 trifluoro-
    phenyl phenyl propyl methyl-
    sulfonyl
    203 H 4-chloro- 4-chloro- H cyclo- a = 0 3-(2-
    phenyl phenyl propyl (methoxy-
    carbonyl)-
    ethyl-amino-
    carbonyl)-
    phenyl-
    sulfonyl-
    204 H 4-chloro- 4-chloro- H cyclo- a = 0 6-(2-
    phenyl phenyl propyl hydroxy-
    ethyl-amino-
    carbonyl)-
    pyrid-3-yl-
    sulfonyl-
    205 H 4-chloro- 4-chloro- H cyclo- a = 0 3-(2-
    phenyl phenyl propyl hydroxy-
    ethyl-amino-
    carbonyl)-
    phenyl-
    sulfonyl-
    206 H 4-chloro- 4-chloro- H cyclo- a = 0 3-methyl-4-
    phenyl phenyl propyl amino-
    carbonyl-
    phenyl-
    sulfonyl-
    207 H 4-chloro- 4-chloro- H cyclo- a = 0 3-methyl-4-
    phenyl phenyl propyl carboxy-
    phenyl-
    sulfonyl-
    211 H 4-chloro- 4-chloro- H cyclo- a = 0 3-carboxy-4-
    phenyl phenyl propyl methoxy-
    phenyl-
    sulfonyl-
    212 —CH2—OH 4-chloro- 4-chloro- H cyclo- a = 0 3-chloro-4-
    phenyl phenyl propyl amino-
    carbonyl-
    phenyl-
    sulfonyl-
    213 —CH2—OH 4-chloro- 4-chloro- H cyclo- a = 0 3-chloro-4-
    phenyl phenyl propyl carboxy-
    phenyl-
    sulfonyl-
    214 H 4-chloro- 4-chloro- H cyclo- a = 0 3-carboxy-4-
    phenyl phenyl propyl chloro-
    phenyl-
    sulfonyl-
    215 H 4-chloro- 4-chloro- H cyclo- a = 0 3-methyl-5-
    phenyl phenyl propyl amino-
    carbonyl-
    thien-2-yl-
    sulfonyl-
    216 H 4-chloro- 4-chloro- H cyclo- a = 0 4-amino-
    phenyl phenyl propyl carbonyl-
    thien-2-yl-
    sulfonyl-
    217 H 4-chloro- 4-chloro- H cyclo- a = 0 3-amino-
    phenyl phenyl propyl carbonyl-4-
    fluoro-
    phenyl-
    sulfonyl-
    218 H 4-chloro- 4-chloro- H cyclo- a = 0 3-methyl-5-
    phenyl phenyl propyl carboxy-
    thien-2-yl-
    sulfonyl-
    220 H 4-chloro- 4-chloro- H cyclo- a = 0 3-fluoro-4-
    phenyl phenyl propyl hydroxy-
    phenyl-
    sulfonyl-
    221 H 4-chloro- 4-chloro- H cyclo- a = 0 4-carboxy-
    phenyl phenyl propyl thien-2-yl-
    sulfonyl-
    222 H 4-chloro- 4-chloro- H cyclo- a = 0 3,5-dichloro-
    phenyl phenyl propyl 4-hydroxy-
    phenyl-
    sulfonyl-
    223 H 4-chloro- 4-chloro- H cyclo- a = 0 6-amino-
    phenyl phenyl propyl carbonyl-
    pyrid-3-yl-
    carbonyl-
    224 H 4-chloro- 4-chloro- H cyclo- a = 0 5-amino-
    phenyl phenyl propyl carbonyl-fur-
    2-yl-sulfonyl-
    225 H 4-chloro- 4-chloro- H cyclo- a = 0 3-fluoro-4-
    phenyl phenyl propyl methoxy-
    phenyl-
    sulfonyl-
    226 H 4-chloro- 4-chloro- H cyclo- a = 0 3-carboxy-4-
    phenyl phenyl propyl fluoro-
    phenyl-
    sulfonyl-
    227 —CH2—OH 4-chloro- 4-chloro- H cyclo- a = 0 4-amino-
    phenyl phenyl propyl carbonyl-
    phenyl-
    sulfonyl-
    228 —CH2—OH 4-chloro- 4-chloro- H cyclo- a = 0 4-carboxy-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    229 H 4-chloro- 4-chloro- H cyclo- a = 0 3-amino-
    phenyl phenyl propyl sulfonyl-
    phenyl-
    carbonyl-
    230 H 4-chloro- 4-chloro- H cyclo- a = 0 4-amino-
    phenyl phenyl propyl sulfonyl-
    phenyl-
    carbonyl-
    231 H 4-chloro- 4-chloro- H cyclo- a = 0 6-carboxy-
    phenyl phenyl propyl pyrid-3-yl-
    carbonyl-
    232 H 4-chloro- 4-chloro- H cyclo- a = 0 5-carboxy-
    phenyl phenyl propyl fur-2-yl-
    sulfonyl-
    234 H 4-chloro- 4-chloro- H cyclo- a = 0 2-hydroxy-
    phenyl phenyl propyl ethyl-
    carbonyl-
    235 H 4-chloro- 4-chloro- H cyclo- a = 0 carboxy-
    phenyl phenyl propyl ethyl-
    sulfonyl-
    238 H 4-chloro- 4-chloro- H cyclo- a = 0 6-amino-
    phenyl phenyl propyl carbonyl-
    pyrid-3-yl-
    sulfonyl-
    239 H 4-chloro- 4-chloro- H cyclo- a = 0 6-carboxy-
    phenyl phenyl propyl sulfonyl-
    240 H 4-chloro- 4-chloro- H cyclo- a = 0 hydroxy-
    phenyl phenyl propyl methyl-
    carbonyl-
    241 H 4-chloro- 4-chloro- H cyclo- a = 0 2-carboxy-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    242 H 4-chloro- 4-chloro- H cyclo- a = 0 3-carboxy-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    243 H 4-chloro- 4-chloro- H cyclo- a = 0 2-amino-
    phenyl phenyl propyl carbonyl-
    phenyl-
    sulfonyl-
    244 —CH2—OH 4-chloro- 4-chloro- H ethyl a = 0 trifluoro-
    phenyl phenyl methyl-
    sulfonyl
    245 —CH2—OH 4-chloro- 4-chloro- H cyclo- a = 0 trifluoro-
    phenyl phenyl propyl methyl-
    sulfonyl
    246 H 4-chloro- 4-chloro- H cyclo- a = 0 4-carboxy-
    phenyl phenyl propyl phenyl-
    carbonyl-
    247 H 4-chloro- 4-chloro- H cyclo- a = 0 amino-
    phenyl phenyl propyl carbonyl-
    methyl-
    sulfonyl-
    248 H 4-chloro- 4-chloro- H cyclo- a = 0 carboxy-
    phenyl phenyl propyl methyl-
    sulfonyl-
    249 H 4-chloro- 4-chloro- H cyclo- a = 0 4-amino-
    phenyl phenyl propyl carbonyl-
    methoxy-
    phenyl-
    sulfonyl-
    250 H 4-chloro- 4-chloro- H cyclo- a = 0 3-methoxy-
    phenyl phenyl propyl 4-amino-
    carbonyl-
    phenyl-
    sulfonyl-
    251 H 4-chloro- 4-chloro- H cyclo- a = 0 3-methoxy-
    phenyl phenyl propyl 4-carboxy-
    phenyl-
    sulfonyl-
    252 H 4-chloro- 4-chloro- H cyclo- a = 0 3-chloro-4-
    phenyl phenyl propyl amino-
    carbonyl-
    phenyl-
    sulfonyl-
    253 H 4-chloro- 4-chloro- H cyclo- a = 0 3-chloro-4-
    phenyl phenyl propyl carboxy-
    phenyl-
    sulfonyl-
    254 H 4-chloro- 4-chloro- H cyclo- a = 0 4-amino-
    phenyl phenyl propyl carbonyl-
    phenyl-
    carbonyl-
    255 OH 4-chloro- 4-chloro- H oxetan-3- a = 0 trifluroo-
    phenyl phenyl yl methyl-
    sulfonyl
    256 H 4-chloro- 4-chloro- H cyclo- a = 0 4-carboxy-
    phenyl phenyl propyl methoxy-
    phenyl-
    sulfonyl-
    257 H 4-chloro- 4-chloro- H cyclo- a = 0 4-hydroxy-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    258 H 4-chloro- 4-chloro- H cyclo- a = 0 2-hydroxy-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    259 H 4-chloro- 4-chloro- H cyclo- a = 0 3-hydroxy-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    260 H 4-chloro- 4-chloro- H cyclo- a = 0 3-amino-
    phenyl phenyl propyl carbonyl)-
    phenyl-
    sulfonyl-
    261 H 4-chloro- 4-chloro- H cyclo- a = 0 3-methoxy-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    262 H 4-chloro- 4-chloro- H cyclo- a = 0 4-amino-
    phenyl phenyl propyl carbonyl-
    phenyl-
    sulfonyl-
    266 —CO2H 4-chloro- 4-chloro- H ethyl a = 0 trifluoro-
    phenyl phenyl methyl-
    sulfonyl
    267 —CO2H 4-chloro- 4-chloro- H cyclo- a = 0 trifluoro-
    phenyl phenyl propyl methyl-
    sulfonyl
    269 H 4-chloro- 4-chloro- H cyclo- a = 0 2-carboxy-
    phenyl phenyl propyl ethyl-
    carbonyl-
    270 H 4-chloro- 4-chloro- H cyclo- a = 0 methyl-
    phenyl phenyl propyl sulfonyl-
    271 H 4-chloro- 4-chloro- H tetra- a = 0 trifluoro-
    phenyl phenyl hydro- methyl-
    fur-2-yl sulfonyl
    272 H 4-chloro- 4-chloro- H cyclo- a = 0 2-trifluoro-
    phenyl phenyl propyl methyl-
    phenyl-
    sulfonyl-
    273 H 4-chloro- 4-chloro- H cyclo- a = 0 2-amino-
    phenyl phenyl propyl carbonyl-
    ethyl-
    carbonyl-
    274 H 4-chloro- 4-chloro- H cyclo- a = 0 amino-
    phenyl phenyl propyl sulfonyl-
    275 H 4-chloro- 4-chloro- H cyclo- a = 0 2-methoxy-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    276 H 4-chloro- 4-chloro- H cyclo- a = 0 4-carboxy-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    277 H 4-chloro- 4-chloro- H cyclo- a = 0 4-chloro-
    phenyl phenyl propyl sulfonyl-
    278 H 4-chloro- 4-chloro- H cyclo- a = 0 amino-
    phenyl phenyl propyl carbonyl-
    methyl-
    carbonyl-
    279 H 4-chloro- 4-chloro- H cyclo- a = 0 4-trifluoro-
    phenyl phenyl propyl methoxy-
    phenyl-
    sulfonyl-
    280 H 4-chloro- 4-chloro- H cyclo- a = 0 4-trifluoro-
    phenyl phenyl propyl methyl-
    phenyl-
    sulfonyl-
    281 H 4-chloro- 4-chloro- H cyclo- a = 0 4-methoxy-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    282 H 4-chloro- 4-chloro- H cyclo- a = 0 4-fluoro-
    phenyl phenyl propyl phenyl-
    sulfonyl-
    283 H 4-chloro- 4-chloro- H cyclo- a = 0 phenyl-
    phenyl phenyl propyl sulfonyl-
    284 H 4-chloro- 4-chloro- H cyclo- a = 0 3-trifluoro-
    phenyl phenyl propyl methyl-
    phenyl-
    sulfonyl-
    285 OH 4-chloro- 4-chloro- H tetrahydro- a = 0 trifluoro-
    phenyl phenyl fur-2-yl methyl-
    sulfonyl
    287 H 4-chloro- 4-chloro- —O—CH3 cyclo- a = 0 trifluoro-
    phenyl phenyl propyl methyl-
    sulfonyl
    288 H 4-chloro- 4-chloro- H cyclo- —CH2— trifluoro-
    phenyl phenyl butyl methyl-
    sulfonyl
    291 H 4-chloro- 4-chloro- H t-butyl a = 0 trifluoro-
    phenyl phenyl methyl-
    sulfonyl
    292 OH 4-chloro- 4-chloro- H t-butyl a = 0 trifluoro-
    phenyl phenyl methyl-
    sulfonyl
    293 OH 4-chloro- 4-chloro- H —CH2OH a = 0 trifluoro-
    phenyl phenyl methyl-
    sulfonyl
    294 OH 4-chloro- 4-chloro- H cyclo- —CH2— trifluoro-
    phenyl phenyl propyl methyl-
    sulfonyl
    303 OH 4-chloro- 4-chloro- H cyclo- a = 0 trifluoro-
    phenyl phenyl propyl methyl-
    sulfonyl
    308 OH 4-chloro- 4-chloro- H ethyl a = 0 trifluoro-
    phenyl phenyl methyl-
    sulfonyl
    315 H 4-chloro- 4-chloro- H ethyl —CH2— trifluoro-
    phenyl phenyl methyl-
    sulfonyl
    316 H 4-chloro- 4-chloro- H cyclo- —CH2— trifluoro-
    phenyl phenyl propyl methyl-
    sulfonyl
    318 H 4-chloro- 4-chloro- H cyclo- a = 0 trifluoro-
    phenyl phenyl butyl methyl-
    sulfonyl
    319 OH 4-chloro- 4-chloro- H cyclo- a = 0 trifluoro-
    phenyl phenyl butyl methyl-
    sulfonyl
    320 H 4- 4- H cyclo- a = 0 trifluoro-
    methoxy- methoxy- butyl methyl-
    phenyl phenyl sulfonyl
    321 H 4-chloro- benzo[d][1,3]- H cyclo- a = 0 trifluoro-
    phenyl dioxol-5- propyl methyl-
    yl sulfonyl
    322 H 4-chloro- thiazol-2- H H —CH2— trifluoro-
    phenyl yl methyl-
    sulfonyl
    323 H 4-chloro- thiazol-2- H ethyl —CH2— trifluoro-
    phenyl yl methyl-
    sulfonyl
    324 H 4-chloro- thiazol-2- H cyclo- —CH2— trifluoro-
    phenyl yl propyl methyl-
    sulfonyl
    328 H 4-chloro- 4-chloro- H ethyl a = 0 trifluoro-
    phenyl phenyl methyl-
    sulfonyl
    332 H 4-chloro- 4-chloro- H ethyl a = 0 ethoxy-
    phenyl phenyl carbonyl-
    335 H 4-chloro- 4-chloro- H cyclo- a = 0 trifluoro-
    phenyl phenyl propyl methyl-
    sulfonyl
    384 H 4-chloro- thiazol-2- H cyclo- a = 0 trifluoro-
    phenyl yl propyl methyl-
    sulfonyl
    385 H 4-chloro- thiazol-2- H pyrid-2-yl a = 0 trifluoro-
    phenyl yl methyl-
    sulfonyl
    386 H 4-chloro- thiazol-2- H methyl a = 0 trifluoro-
    phenyl yl methyl-
    sulfonyl
    387 H 4-chloro- thiazol-2- H —C(O)O—CH2—CH3 a = 0 trifluoro-
    phenyl yl methyl-
    sulfonyl
    390 H 4-chloro- thiazol-2- H pyrid-4-yl a = 0 trifluoro-
    phenyl yl methyl-
    sulfonyl
    391 H 4-chloro- thiazol-2- H cyclo- a = 0 trifluoro-
    phenyl yl butyl methyl-
    sulfonyl
    393 H 4-chloro- thiazol-2- H pyrid-3-yl a = 0 trifluoro-
    phenyl yl methyl-
    sulfonyl
    394 H 4-chloro- thiazol-2- H 4-chloro- a = 0 trifluoro-
    phenyl yl phenyl methyl-
    sulfonyl
    395 H 4-chloro- thiazol-2- H cyclo- a = 0 trifluoro-
    phenyl yl pentyl methyl-
    sulfonyl
    396 H 4-chloro- thiazol-2- H isobutyl a = 0 trifluoro-
    phenyl yl methyl-
    sulfonyl
    397 H 4-chloro- thiazol-2- H isopropyl a = 0 trifluoro-
    phenyl yl methyl-
    sulfonyl
    398 H 4-chloro- thiazol-2- H H a = 0 trifluoro-
    phenyl yl methyl-
    sulfonyl
    399 H 4-chloro- thiazol-2- H n-propyl a = 0 trifluoro-
    phenyl yl methyl-
    sulfonyl
    400 H 4-chloro- thiazol-2- H ethyl a = 0 trifluoro-
    phenyl yl methyl-
    sulfonyl
    408 H 4-chloro- thiazol-2- H t-butyl a = 0 ethoxy-
    phenyl yl carbonyl-
    411 H 4-chloro- thiazol-2- H tetra- a = 0 ethoxy-
    phenyl yl hydro- carbonyl-
    fur-2-yl
    412 H 4-chloro- thiazol-2- H tetra- a = 0 ethoxy-
    phenyl yl hydro- carbonyl-
    pyran-4-
    yl
    413 H 4-chloro- thiazol-2- H —C(O)O—CH2CH3 a = 0 ethoxy-
    phenyl yl carbonyl-
    414 H 4-chloro- thiazol-2- H azetidin- a = 0 ethoxy-
    phenyl yl 3-yl carbonyl-
    415 H 4-chloro- thiazol-2- H —CF3 a = 0 ethoxy-
    phenyl yl carbonyl-
    416 H 4-chloro- thiazol-2- H n-propyl a = 0 ethoxy-
    phenyl yl carbonyl-
    417 H 4-chloro- thiazol-2- H 1-t- a = 0 ethoxy-
    phenyl yl butoxy- carbonyl-
    carbonyl-
    azetidin-
    3-yl
    418 H 4-chloro- thiazol-2- H 4-chloro- a = 0 ethoxy-
    phenyl yl phenyl carbonyl-
    419 H 4-chloro- thiazol-2- H thiazol-2- a = 0 ethoxy-
    phenyl yl yl carbonyl-
    420 H 4-chloro- thiazol-2- H isobutyl a = 0 ethoxy-
    phenyl yl carbonyl-
    421 H 4-chloro- thiazol-2- H cyclo- a = 0 ethoxy-
    phenyl yl propyl carbonyl-
    422 H 4-chloro- thiazol-2- H chloro a = 0 ethoxy-
    phenyl yl carbonyl-
    439 H 4-chloro- thiazol-2- H dimethyl- a = 0 ethoxy-
    phenyl yl amino carbonyl-
    440 H 4-chloro- thiazol-2- H amino a = 0 ethoxy-
    phenyl yl carbonyl-
    441 H 4-chloro- thiazol-2- H 4-chloro- a = 0 ethoxy-
    phenyl yl phenyl carbonyl-
    443 H 4-chloro- thiazol-2- H 2,4- a = 0 ethoxy-
    phenyl yl dichloro- carbonyl-
    phenyl
    445 H 4-chloro- thiazol-2- H methyl a = 0 ethoxy-
    phenyl yl carbonyl-
    448 H 4-chloro- thiazol-2- H H a = 0 ethoxy-
    phenyl yl carbonyl-
  • TABLE 5
    Representative Compounds of Formula (I)
    Figure US20190031618A1-20190131-C00152
    ID. No.
    Figure US20190031618A1-20190131-C00153
    Figure US20190031618A1-20190131-C00154
         		R2 R3
    53 4-chloro- 4-chloro- cyclo- 3-(carboxy-benzyl)-azetidin-
    phenyl phenyl propyl 3-yl
    54 4-chloro- 4-chloro- cyclo- 5-(carboxy-fur-2-yl-sulfonyl)-
    phenyl phenyl propyl azetidin-3-yl
    57 4-chloro- 4-chloro- cyclo- 4-(carboxy-phenyl-sulfonyl)-
    phenyl phenyl propyl azetidin-3-yl
    65 4-chloro- 4-chloro- cyclo- 4-(carboxy-phenyl-sulfonyl)-
    phenyl phenyl propyl pyrrolidin-3-yl
    67 4-chloro- 4-chloro- cyclo- 3-(carboxy-benzyl)-pyrrolidin-
    phenyl phenyl propyl 3-yl
    68 4-chloro- 4-chloro- cyclo- 5-(carboxy-fur-2-yl-sulfonyl)-
    phenyl phenyl propyl pyrrolidin-3-yl
    295 4-chloro- 4-chloro- cyclo- 1-(trifluoro-methyl-sulfonyl)-
    phenyl phenyl propyl 4-hydroxy-piperidin-4-yl-CH2—
    343 4-chloro- thiazol-2-yl —C(O)O—CH3 1-(trifluoro-methyl-sulfonyl)-
    phenyl 8-azabicyclo[3.2.1]octan-3-yl
    344 4-chloro- thiazol-2-yl cyclo- 1-(trifluoro-methyl-sulfonyl)-
    phenyl butyl 8-azabicyclo[3.2.1]octan-3-yl
    345 4-chloro- thiazol-2-yl —C(O)O—CH2CH3 1-(ethoxy-carbonyl)-8-
    phenyl azabicyclo[3.2.1]octan-3-yl
    347 4-chloro- thiazol-2-yl pyrid-3-yl 1-(trifluoro-methyl-sulfonyl)-
    phenyl 8-azabicyclo[3.2.1]octan-3-yl
    348 4-chloro- thiazol-2-yl ethyl 1-(trifluoro-methyl-sulfonyl)-
    phenyl 8-azabicyclo[3.2.1]octan-3-yl
    349 4-chloro- thiazol-2-yl pyrid-4-yl 1-(trifluoro-methyl-sulfonyl)-
    phenyl 8-azabicyclo[3.2.1]octan-3-yl
    350 4-chloro- thiazol-2-yl H 1-(trifluoro-methyl-sulfonyl)-
    phenyl 8-azabicyclo[3.2.1]octan-3-yl
    351 4-chloro- thiazol-2-yl 4-chloro- 1-(trifluoro-methyl-sulfonyl)-
    phenyl phenyl 8-azabicyclo[3.2.1]octan-3-yl
    352 4-chloro- thiazol-2-yl cyclo- 1-(trifluoro-methyl-sulfonyl)-
    phenyl pentyl 8-azabicyclo[3.2.1]octan-3-yl
    353 4-chloro- thiazol-2-yl n-propyl 1-(trifluoro-methyl-sulfonyl)-
    phenyl 8-azabicyclo[3.2.1]octan-3-yl
    356 4-chloro- thiazol-2-yl isopropyl 1-(trifluoro-methyl-sulfonyl)-
    phenyl 8-azabicyclo[3.2.1]octan-3-yl
    357 4-chloro- thiazol-2-yl methyl 1-(trifluoro-methyl-sulfonyl)-
    phenyl 8-azabicyclo[3.2.1]octan-3-yl
    358 4-chloro- thiazol-2-yl pyrid-2-yl 1-(trifluoro-methyl-sulfonyl)-
    phenyl 8-azabicyclo[3.2.1]octan-3-yl
    359 4-chloro- thiazol-2-yl isobutyl 1-(trifluoro-methyl-sulfonyl)-
    phenyl 8-azabicyclo[3.2.1]octan-3-yl
    360 4-chloro- thiazol-2-yl cyclo- 1-(trifluoro-methyl-sulfonyl)-
    phenyl propyl 8-azabicyclo[3.2.1]octan-3-yl
    363 4-chloro- thiazol-2-yl cyclo- 1-(ethoxy-carbonyl)-8-
    phenyl propyl azabicyclo[3.2.1]octan-3-yl
    366 4-chloro- thiazol-2-yl pyrid-4-yl 1-(ethoxy-carbonyl)-8-
    phenyl azabicyclo[3.2.1]octan-3-yl
    367 4-chloro- thiazol-2-yl pyrid-3-yl 1-(ethoxy-carbonyl)-8-
    phenyl azabicyclo[3.2.1]octan-3-yl
    368 4-chloro- thiazol-2-yl cyclo- 1-(ethoxy-carbonyl)-8-
    phenyl propyl azabicyclo[3.2.1]octan-3-yl
    369 4-chloro- thiazol-2-yl isobutyl 1-(ethoxy-carbonyl)-8-
    phenyl azabicyclo[3.2.1]octan-3-yl
    378 4-chloro- thiazol-2-yl pyrid-2-yl 1-(ethoxy-carbonyl)-8-
    phenyl azabicyclo[3.2.1]octan-3-yl
    379 4-chloro- thiazol-2-yl methyl 1-(ethoxy-carbonyl)-8-
    phenyl azabicyclo[3.2.1]octan-3-yl
    380 4-chloro- thiazol-2-yl H 1-(ethoxy-carbonyl)-8-
    phenyl azabicyclo[3.2.1]octan-3-yl
    381 4-chloro- thiazol-2-yl isopropyl 1-(ethoxy-carbonyl)-8-
    phenyl azabicyclo[3.2.1]octan-3-yl
    382 4-chloro- thiazol-2-yl n-propyl 1-(ethoxy-carbonyl)-8-
    phenyl azabicyclo[3.2.1]octan-3-yl
    383 4-chloro- thiazol-2-yl ethyl 1-(ethoxy-carbonyl)-8-
    phenyl azabicyclo[3.2.1]octan-3-yl
    388 4-chloro- thiazol-2-yl 4-chloro- 1-(ethoxy-carbonyl)-8-
    phenyl phenyl azabicyclo[3.2.1]octan-3-yl
    389 4-chloro- thiazol-2-yl cyclo- 1-(ethoxy-carbonyl)-8-
    phenyl pentyl azabicyclo[3.2.1]octan-3-yl
    • Definitions
  • As used herein, unless otherwise noted, “halogen” shall mean chlorine, bromine, fluorine and iodine.
  • As used herein, unless otherwise noted, the term “carboxy” shall mean —C(O)OH.
  • As used herein, unless otherwise noted, the term “alkyl” whether used alone or as part of a substituent group, include straight and branched chains. For example, alkyl radicals include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, t-butyl, pentyl and the like. Unless otherwise noted, “CX-Yalkyl” wherein X and Y are integers, shall mean a carbon chain composition of between X and Y carbon atoms. For example, “C1-4alkyl” shall mean any straight or branched chain composition of between 1 and 4 carbon atoms (including methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl and t-butyl).
  • One skilled in the art will recognize that the term “—(CX-Yalkyl)-” shall denote any CX-Yalkyl straight or branched chain composition as defined above, wherein said CX-Yalkyl straight or branched chain composition is divalent and is therefore bound through two points of attachment, preferably through two terminal carbon atoms.
  • As used herein, unless otherwise noted, the term “halogenated C1-4alkyl” shall mean any CX-Yalkyl group as defined above substituted with at least one halogen atom, preferably substituted with a least one fluoro atom. Suitable examples include but are not limited to —CH2F, —CH2I, —CH2Br, —CH2Cl, —CF3, —CCl3, —CH2—CF3, CH2—CCl3, —CF2—CF2—CF2—CF3, and the like. Similarly, the term “fluorinated C1-4alkyl” shall mean any CX-Yalkyl group as defined above substituted with at least one fluoro atom, preferably one to three fluoro atoms. Suitable examples include, but are not limited, to —CF3, —CH2—CF3, —CF2—CF2—CF2—CF3, and the like.
  • As used herein, unless otherwise noted, the term “hydroxy substituted CX-Yalkyl” shall mean any CX-Yalkyl group as defined above, substituted with at least one hydroxy group, preferably one to two hydroxy groups, more preferably one hydroxy group; provided that when the “hydroxy substituted CX-Yalkyl” is bound to a N or O atom of a substituent group as defined herein, then the hydroxy group(s) on the “hydroxy substituted CX-Yalkyl” are not bound to C-1 carbon atom of the CX-Yalkyl portion of the “hydroxy substituted CX-Yalkyl” (i.e. the hydroxy group(s) are not bound to the carbon atom which is directly bound to the N or O atom of said substituent group). Suitable examples include but are not limited to —CH2OH, —CH2CH2OH, —CH(OH)CH3, —CH2CH2CH2OH, —CH2CH(OH)CH3, —CH2CH2CH2CH2OH, —C(CH2CH2OH)2—CH2CH2OH, and the like. In an embodiment, the CX-Yalkyl is substituted with the hydroxy group(s) at terminal carbon atom(s).
  • As used herein, unless otherwise noted, the term “CX-Y alkenyl” wherein X and Y are integers, shall mean a carbon chain composition of between X and Y carbon atoms wherein the carbon chain contains at least one, preferably one, double bond. For example, “C3-4alkenyl” shall mean a 3 to 4 carbon chain composition containing at least one, preferably one, double bond. Suitable example include, but are not limited to —CH2—CH═CH2, —CH═CH—CH2 and the like.
  • One skilled in the art will recognize that the term “—(CX-Y alkenyl)-” shall denote any CX-Y alkenyl carbon chain composition as defined above, wherein said CX-Y alkenyl is divalent and is therefore bound through two points of attachment, preferably through two terminal carbon atoms. For example, the term “—(C2-4alkenyl)-” shall mean any 2 to 4 carbon atom chain containing at least one, preferably one double bond. Suitable examples include, but are not limited to —CH═CH—, —CH2—CH═CH—, —CH═CH—CH2—, —CH═CH—CH(CH3)— and the like.
  • As used herein, unless otherwise noted, “alkoxy” shall denote an oxygen ether radical of the above described straight or branched chain alkyl groups. For example, methoxy, ethoxy, n-propoxy, sec-butoxy, t-butoxy, n-hexyloxy and the like. Unless otherwise noted, “CX-Yalkoxy” wherein X and Y are integers, shall mean an oxygen ether radical of the above described straight or branched chain carbon chain composition of between X and Y carbon atoms. For example, “C1-4alkoxy” shall mean any oxygen ether radical of the above described straight or branched chain composition of between 1 and 4 carbon atoms.
  • As used herein, unless otherwise noted, the term “halogenated C1-4alkoxy” shall mean any C1-4alkoxy group as defined above substituted with at least one halogen atom, preferably substituted with a least one fluoro atom. Suitable examples include but are not limited to —OCH2F, —OCH2I, —OCH2Br, —OCH2Cl, —OCF3, —OCCl3, —OCH2—CF3, —OCH2—CCl3, —OCF2—CF2—CF2—CF3, and the like. Similarly, the term “fluorinated C1-4alkoxy” shall mean any C1-4alkoxy group as defined above substituted with at least one fluoro atom, preferably one to three fluoro atoms. Suitable examples include but are not limited to —OCF3, —OCH2—CF3, —OCF2—CF2—CF2—CF3, and the like.
  • As used herein, unless otherwise noted, the term “cycloalkyl” shall mean any stable 3-8 membered monocyclic, saturated ring system, for example cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl and cyclooctyl. Unless otherwise noted, “CX-ycycloalkyl” wherein X and Y are integers, shall mean a cycloalkyl ring structure as herein defined wherein the ring structure contains between X and Y carbon atoms. For example, C3-6cycloalkyl shall include cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl.
  • When a particular group is “substituted” (e.g., alkyl, cycloalkyl, aryl, heteroaryl, heterocycloalkyl, etc.), that group may have one or more substituents, preferably from one to five substituents, more preferably from one to three substituents, most preferably from one to two substituents, independently selected from the list of substituents.
  • With reference to substituents, the term “Independently” means that when more than one of such substituents is possible, such substituents may be the same or different from each other.
  • As used herein, the notation “*” shall denote the presence of a stereogenic center.
  • Where the compounds according to this invention have at least one chiral center, they may accordingly exist as enantiomers. Where the compounds possess two or more chiral centers, they may additionally exist as diastereomers. It is to be understood that all such isomers and mixtures thereof are encompassed within the scope of the present invention. Preferably, wherein the compound is present as an enantiomer, the enantiomer is present at an enantiomeric excess of greater than or equal to about 80%, more preferably, at an enantiomeric excess of greater than or equal to about 90%, more preferably still, at an enantiomeric excess of greater than or equal to about 95%, more preferably still, at an enantiomeric excess of greater than or equal to about 98%, most preferably, at an enantiomeric excess of greater than or equal to about 99%. Similarly, wherein the compound is present as a diastereomer, the diastereomer is present at an diastereomeric excess of greater than or equal to about 80%, more preferably, at an diastereomeric excess of greater than or equal to about 90%, more preferably still, at an diastereomeric excess of greater than or equal to about 95%, more preferably still, at an diastereomeric excess of greater than or equal to about 98%, most preferably, at an diastereomeric excess of greater than or equal to about 99%.
  • Furthermore, some of the crystalline forms for the compounds of the present invention may exist as polymorphs and as such are intended to be included in the present invention. In addition, some of the compounds of the present invention may form solvates with water (i.e., hydrates) or common organic solvents, and such solvates are also intended to be encompassed within the scope of this invention.
  • Furthermore, it is intended that within the scope of the present invention, any element, in particular when mentioned in relation to a compound of formula (I), shall comprise all isotopes and isotopic mixtures of said element, either naturally occurring or synthetically produced, either with natural abundance or in an isotopically enriched form. For example, a reference to hydrogen includes within its scope 1H, 2H (D), and 3H (T). Similarly, references to carbon and oxygen include within their scope respectively 12C, 13C and 14C and 16O and 18O. The isotopes may be radioactive or non-radioactive. Radiolabelled compounds of formula (I) may comprise a radioactive isotope selected from the group of 3H, 11C, 18F, 122I, 123I, 125I, 131I, 75Br, 76Br, 77Br and 82Br. Preferably, the radioactive isotope is selected from the group of 3H, 11C and 18F.
  • Under standard nomenclature used throughout this disclosure, the terminal portion of the designated side chain is described first, followed by the adjacent functionality toward the point of attachment. Thus, for example, a “phenylC1-C6alkylaminocarbonylC1-C6alkyl” substituent refers to a group of the formula
  • Figure US20190031618A1-20190131-C00155
  • Abbreviations used in the specification, particularly the Schemes and Examples, are as follows:
      • AcOH or HOAc=Acetic acid
      • Alloc=Allyloxycarbonyl
      • aq. or aq=Aqueous
      • Boc or BOC=tert-butoxycarbonyl
      • Boc2O=Boc anhydride (i.e. di-tert-butyl dicarbonate)
      • BSA=Bovine Serum Albumin
      • cAMP=Cyclic Adenosine Monophosphate
      • CB1 or CB1R or CB1R=Cannabinoid 1 Receptor
      • CB2 or CB2R or CB2R=Cannabinoid 2 Receptor
      • CDI=Carbonyldiimidazole
      • conc.=Concentrated
      • DBU=1,8-Diazabicyclo[5.4.0]undec-7-ene
      • DCE=1,1-Dichloroethane
      • DCM=Dichloromethane
      • DIAD=Diisopropylazodicarboxylate
      • DIC=N,N′-diisopropylcarbodiimide
      • DIO=Diet-Induced Obesity (Mouse Model)
      • DIPEA or DIEA or Hunig's Base=Diisopropylethylamine
      • DME=Dimethoxyethane
      • DMEM=Dulbecco's Modified Eagle Medium
      • DMF=N,N-Dimethylformamide
      • DMP=Dess-Martin Periodinane (1,1,1-Triacetoxy-1,1-dihydro-1,2-benziodoxol-3(1H)-one)
      • DMSO=Dimethylsulfoxide
      • DPPA=Diphenylphosphoryl azide
      • dppf=1,1′-Bis(diphenylphosphino)ferrocene
      • EDCl=1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide
      • EtOAc or EA=Ethyl acetate
      • EtOH=Ethanol
      • Et2O=Diethyl ether
      • Et3SiH=Triethylsilane
      • FBS=Fetal Bovine Serum
      • GCMS or GC-MS=Gas Chromatography-Mass Spectroscopy
      • GPCR=G-coupled Receptor
      • HATU=O-(7-Azabenzotriazol-1-yl)-N,N,N″,N″-Tetramethyl Uronium Hexafluorophosphate
      • HBSS=Hank's Balanced Salt Solution
      • HBTU=N N,N,N′,N′-Tetramethyl-O-(1H-benzotriazol-1-yl)uronium hexafluorophosphate
      • HDL=High Density Lipoprotein
      • HEPES=4-(2-Hydroxyethyl)-1-Piperazine Ethane Sulfonic Acid
      • HPLC=High Performance Liquid Chromatography
      • IPA or i-PrOH=Isopropyl alcohol
      • KOt-Bu or t-BuOK=Potassium t-butoxide
      • LADA=Latent Autoimmune Diabetes of Adults
      • LAH=Lithium Aluminum Hydride
      • LCMS or LC-MS=Liquid Chromatography-Mass Spectrometry
      • LDL=Low Density Lipoprotein
      • LiHMDS or LiN(SiMe3)2=Lithium bis(trimethylsilyl)amide
      • MeOH=Methanol
      • Mesyl=Methylsulfonyl
      • MOMBr=Bromomethyl methyl ether
      • MTBE=Methyl t-butyl ether
      • n-BuLi=n-Butyl Lithium
      • NaBH(OAc)3=Sodium triacetoxyborohydride
      • NaHMDS or NaN(SiMe3)2=Sodium bis(trimethylsilyl)amide
      • NaOt-Bu or t-BuONa=Sodium terf-butoxide
      • NASH=NonAlcoholic Steatohepatitis
      • NMR=Nuclear magnetic Resonance
      • NSB=Non-Specific Binding
      • PBS=Phosphate Buffered Saline
      • Pd/C=Palladium on Carbon (catalyst)
      • Pd2(Oac)2=Palladium(II)acetate
      • Pd2(dba)3=Tris(dibenzylidene acetone)dipalladium (0)
      • Pd(dppf)Cl2=[1,1′-Bis(diphenylphosphino) ferrocene]dichloro palladium(II)
      • PE=Petroleum Ether
      • PPh3=Triphenyl Phosphine
      • Raney nickel or Raney Ni or RaNi W.R. Grace and Co. Trademarked Nickel Catalyst
      • sat.=Saturated
      • t-BuLi=tert-Butyl lithium
      • t-BuOH=tert-Butanol
      • TEA or Et3N=Triethylamine
      • TFA=Trifluoroacetic Acid
      • THF=Tetrahydrofuran
      • Ti(OiPr)4=Titanium isopropoxide
      • TLC=Thin Layer Chromatography
      • Tosyl=p-Toluenesulfonyl
      • Tris HCl or Tris-Cl=Tris[hydroxymethyl]aminomethyl hydrochloride
      • XantPhos=4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene
      • XPhos=2-Dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl
  • The compounds of the present invention are CB-1 inverse agonists useful for the treatment and/or prevention of metabolic disorders, including obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain. Preferably, the metabolic disorder is selected from the group consisting of obesity, Type II diabetes, and dyslipidemias. More preferably, the metabolic disorder is obesity or Type II diabetes.
  • As used herein, unless otherwise noted, the terms “treating”, “treatment” and the like, shall include the management and care of a subject or patient (preferably mammal, more preferably human) for the purpose of combating a disease, condition, or disorder and includes the administration of a compound of the present invention to prevent the onset of the symptoms or complications, alleviate the symptoms or complications, or eliminate the disease, condition, or disorder.
  • As used herein, unless otherwise noted, the term “prevention” shall include (a) reduction in the frequency of one or more symptoms; (b) reduction in the severity of one or more symptoms; (c) the delay or avoidance of the development of one or more additional symptoms; and/or (d) delay or avoidance of the development or progression of the disorder or condition.
  • One skilled in the art will recognize that wherein the present invention is directed to methods of prevention, a subject in need of thereof (i.e. a subject in need of prevention) shall include any subject or patient (preferably a mammal, more preferably a human) who has experienced or exhibited at least one symptom of the disorder, disease or condition to be prevented. Further, a subject in need thereof may additionally be a subject (preferably a mammal, more preferably a human) who has not exhibited any symptoms of the disorder, disease or condition to be prevented, but who has been deemed by a physician, clinician or other medical profession to be at risk of developing said disorder, disease or condition. For example, the subject may be deemed at risk of developing a disorder, disease or condition (and therefore in need of prevention or preventive treatment) as a consequence of the subject's medical history, including, but not limited to, family history, pre-disposition, co-existing (comorbid) disorders or conditions, genetic testing, and the like.
  • The term “subject” as used herein, refers to an animal, preferably a mammal, most preferably a human, who has been the object of treatment, observation or experiment. Preferably, the subject has experienced and/or exhibited at least one symptom of the disease or disorder to be treated and/or prevented.
  • The term “therapeutically effective amount” as used herein, means that amount of active compound or pharmaceutical agent that elicits the biological or medicinal response in a tissue system, animal or human that is being sought by a researcher, veterinarian, medical doctor or other clinician, which includes alleviation of the symptoms of the disease or disorder being treated.
  • As used herein, the term “composition” is intended to encompass a product comprising the specified ingredients in the specified amounts, as well as any product which results, directly or indirectly, from combinations of the specified ingredients in the specified amounts.
  • To provide a more concise description, some of the quantitative expressions given herein are not qualified with the term “about”. It is understood that whether the term “about” is used explicitly or not, every quantity given herein is meant to refer to the actual given value, and it is also meant to refer to the approximation to such given value that would reasonably be inferred based on the ordinary skill in the art, including approximations due to the experimental and/or measurement conditions for such given value.
  • To provide a more concise description, some of the quantitative expressions herein are recited as a range from about amount X to about amount Y. It is understood that wherein a range is recited, the range is not limited to the recited upper and lower bounds, but rather includes the full range from about amount X through about amount Y, or any amount or range therein.
  • As more extensively provided in this written description, terms such as “reacting” and “reacted” are used herein in reference to a chemical entity that is any one of: (a) the actually recited form of such chemical entity, and (b) any of the forms of such chemical entity in the medium in which the compound is being considered when named. One skilled in the art will recognize that, where not otherwise specified, the reaction step(s) is performed under suitable conditions, according to known methods, to provide the desired product. One skilled in the art will further recognize that, in the specification and claims as presented herein, wherein a reagent or reagent class/type (e.g. base, solvent, etc.) is recited in more than one step of a process, the individual reagents are independently selected for each reaction step and may be the same or different from each other. For example wherein two steps of a process recite an organic or inorganic base as a reagent, the organic or inorganic base selected for the first step may be the same or different than the organic or inorganic base of the second step. Further, one skilled in the art will recognize that wherein a reaction step of the present invention may be carried out in a variety of solvents or solvent systems, said reaction step may also be carried out in a mixture of the suitable solvents or solvent systems. Examples of suitable solvents, bases, reaction temperatures, and other reaction parameters and components are provided in the detailed descriptions which follow herein. One skilled in the art will recognize that the listing of said examples is not intended, and should not be construed, as limiting in any way the invention set forth in the claims which follow thereafter.
  • As used herein, unless otherwise noted, the term “aprotic solvent” shall mean any solvent that does not yield a proton. Suitable examples include, but are not limited to DMF, 1,4-dioxane, THF, acetonitrile, pyridine, dichloroethane, dichloromethane, MTBE, toluene, acetone, and the like.
  • As used herein, unless otherwise noted, the term “leaving group” shall mean a charged or uncharged atom or group which departs during a substitution or displacement reaction. Suitable examples include, but are not limited to, Br, Cl, I, mesylate, tosylate, and the like.
  • One skilled in the art will recognize that during any of the processes for preparation of the compounds of the present invention, as herein described in more detail, it may be necessary and/or desirable to protect sensitive or reactive groups on any of the molecules concerned. This may be achieved by means of conventional protecting groups, such as those described in Protective Groups in Organic Chemistry, ed. J. F. W. McOmie, Plenum Press, 1973; and T. W. Greene & P. G. M. Wuts, Protective Groups in Organic Synthesis, John Wiley & Sons, 1991. The protecting groups may be removed at a convenient subsequent stage using methods known from the art.
  • As used herein, unless otherwise noted, the term “nitrogen protecting group” shall mean a group which may be attached to a nitrogen atom to protect said nitrogen atom from participating in a reaction and which may be readily removed following the reaction. Suitable nitrogen protecting groups include, but are not limited to carbamates—groups of the formula —C(O)O—R wherein R is for example methyl, ethyl, t-butyl, benzyl, phenylethyl, CH2═CH—CH2—, and the like; amides—groups of the formula —C(O)—R′ wherein R′ is for example methyl, phenyl, trifluoromethyl, and the like; N-sulfonyl derivatives—groups of the formula —SO2—R″ wherein R″ is for example tolyl, phenyl, trifluoromethyl, 2,2,5,7,8-pentamethylchroman-6-yl-, 2,3,6-trimethyl-4-methoxybenzene, and the like. Other suitable nitrogen protecting groups may be found in texts such as T. W. Greene & P. G. M. Wuts, Protective Groups in Organic Synthesis, John Wiley & Sons, 1991.
  • Where the processes for the preparation of the compounds according to the invention give rise to mixture of stereoisomers, these isomers may be separated by conventional techniques such as preparative chromatography. The compounds may be prepared in racemic form, or individual enantiomers may be prepared either by enantiospecific synthesis or by resolution. The compounds may, for example, be resolved into their component enantiomers by standard techniques, such as the formation of diastereomeric pairs by salt formation with an optically active acid, such as (−)-di-p-toluoyl-D-tartaric acid and/or (+)-di-p-toluoyl-L-tartaric acid followed by fractional crystallization and regeneration of the free base. The compounds may also be resolved by formation of diastereomeric esters or amides, followed by chromatographic separation and removal of the chiral auxiliary. Alternatively, the compounds may be resolved using a chiral HPLC column.
  • Additionally, chiral HPLC against a standard may be used to determine percent enantiomeric excess (% ee). The enantiomeric excess may be calculated as follows

  • [(Rmoles−Smoles)/(Rmoles+Smoles)]×100%
  • where Rmoles and Smoles are the R and S mole fractions in the mixture such that Rmoles+Smoles=1. The enantiomeric excess may alternatively be calculated from the specific rotations of the desired enantiomer and the prepared mixture as follows:

  • ee=([α−obs]/[α−max])×100.
  • The present invention includes within its scope prodrugs of the compounds of this invention. In general, such prodrugs will be functional derivatives of the compounds which are readily convertible in vivo into the required compound. Thus, in the methods of treatment of the present invention, the term “administering” shall encompass the treatment of the various disorders described with the compound specifically disclosed or with a compound which may not be specifically disclosed, but which converts to the specified compound in vivo after administration to the patient. Conventional procedures for the selection and preparation of suitable prodrug derivatives are described, for example, in “Design of Prodrugs”, ed. H. Bundgaard, Elsevier, 1985.
  • For use in medicine, the salts of the compounds of this invention refer to non-toxic “pharmaceutically acceptable salts.” Other salts may, however, be useful in the preparation of compounds according to this invention or of their pharmaceutically acceptable salts. Suitable pharmaceutically acceptable salts of the compounds include acid addition salts which may, for example, be formed by mixing a solution of the compound with a solution of a pharmaceutically acceptable acid such as hydrochloric acid, sulfuric acid, fumaric acid, maleic acid, succinic acid, acetic acid, benzoic acid, citric acid, tartaric acid, carbonic acid or phosphoric acid. Furthermore, where the compounds of the invention carry an acidic moiety, suitable pharmaceutically acceptable salts thereof may include alkali metal salts, e.g., sodium or potassium salts; alkaline earth metal salts, e.g., calcium or magnesium salts; and salts formed with suitable organic ligands, e.g., quaternary ammonium salts. Thus, representative pharmaceutically acceptable salts include, but are not limited to, the following: acetate, benzenesulfonate, benzoate, bicarbonate, bisulfate, bitartrate, borate, bromide, calcium edetate, camsylate, carbonate, chloride, clavulanate, citrate, dihydrochloride, edetate, edisylate, estolate, esylate, fumarate, gluceptate, gluconate, glutamate, glycollylarsanilate, hexylresorcinate, hydrabamine, hydrobromide, hydrochloride, hydroxynaphthoate, iodide, isothionate, lactate, lactobionate, laurate, malate, maleate, mandelate, mesylate, methylbromide, methylnitrate, methylsulfate, mucate, napsylate, nitrate, N-methylglucamine ammonium salt, oleate, pamoate (embonate), palmitate, pantothenate, phosphate/diphosphate, polygalacturonate, salicylate, stearate, sulfate, subacetate, succinate, tannate, tartrate, teoclate, tosylate, triethiodide and valerate.
  • Representative acids which may be used in the preparation of pharmaceutically acceptable salts include, but are not limited to, the following: acids including acetic acid, 2,2-dichloroacetic acid, acylated amino acids, adipic acid, alginic acid, ascorbic acid, L-aspartic acid, benzenesulfonic acid, benzoic acid, 4-acetamidobenzoic acid, (+)-camphoric acid, camphorsulfonic acid, (+)-(1S)-camphor-10-sulfonic acid, capric acid, caproic acid, caprylic acid, cinnamic acid, citric acid, cyclamic acid, dodecylsulfuric acid, ethane-1,2-disulfonic acid, ethanesulfonic acid, 2-hydroxy-ethanesulfonic acid, formic acid, fumaric acid, galactaric acid, gentisic acid, glucoheptonic acid, D-gluconic acid, D-glucuronic acid, L-glutamic acid, α-oxo-glutaric acid, glycolic acid, hippuric acid, hydrobromic acid, hydrochloric acid, (+)-L-lactic acid, (±)-DL-lactic acid, lactobionic acid, maleic acid, (−)-L-malic acid, malonic acid, (±)-DL-mandelic acid, methanesulfonic acid, naphthalene-2-sulfonic acid, naphthalene-1,5-disulfonic acid, 1-hydroxy-2-naphthoic acid, nicotinic acid, nitric acid, oleic acid, orotic acid, oxalic acid, palmitic acid, pamoic acid, phosphoric acid, L-pyroglutamic acid, salicylic acid, 4-amino-salicylic acid, sebacic acid, stearic acid, succinic acid, sulfuric acid, tannic acid, (+)-L-tartaric acid, thiocyanic acid, p-toluenesulfonic acid and undecylenic acid.
  • Representative bases which may be used in the preparation of pharmaceutically acceptable salts include, but are not limited to, the following: ammonia, L-arginine, benethamine, benzathine, calcium hydroxide, choline, deanol, diethanolamine, diethylamine, 2-(diethylamino)-ethanol, ethanolamine, ethylenediamine, N-methyl-glucamine, hydrabamine, 1H-imidazole, L-lysine, magnesium hydroxide, 4-(2-hydroxyethyl)-morpholine, piperazine, potassium hydroxide, 1-(2-hydroxyethyl)-pyrrolidine, sodium hydroxide, triethanolamine, tromethamine and zinc hydroxide.
    • Synthesis Schemes
  • Compounds of formula (I) (preferably compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00156
  • are both aromatic, and more preferably,
  • Figure US20190031618A1-20190131-C00157
  • are each optionally substituted phenyl), may be prepared according to the process outlined in Schemes 1-2, below.
  • Figure US20190031618A1-20190131-C00158
  • Accordingly, a suitably substituted compound of formula (X), a known compound or compound prepared by known methods, is reacted with a suitably selected alcohol of the formula A1OH, wherein A1 is C1-4alkyl, in the presence of a suitably selected acid such as H2SO4, p-toluenesuffonic acid, HCl, and the like; in a suitably selected solvent such as methanol, ethanol, and the like; to yield the corresponding compound of formula (XI).
  • The compound of formula (XI) is reacted with 2,4-difluoro-1-nitrobenzene, a known compound, in the presence of a suitably selected base such as KOt-Bu, LiHMDS, NaHMDS, NaOt-Bu, and the like; in a suitably selected solvent such as THF, DME, and the like; to yield the corresponding compound of formula (XII).
  • The compound of formula (XII) is reacted with a suitably substituted compound of formula (XIII), wherein Q1 is selected from the group consisting of —R3,
  • Figure US20190031618A1-20190131-C00159
  • wherein PG1 is a suitably selected nitrogen protecting group such as Boc, alloc, and the like; a known compound or compound prepared by known methods, in the presence of a suitably selected base such as DIPEA, TEA, pyridine, and the like; in a suitably selected solvent such as acetonitrile, DMSO, DMF, and the like; at a temperature in the range of from about 60° C. to about 100° C., for example at about 85° C.; to yield the corresponding compound of formula (XIV).
  • The compound of formula (XIV) is hydrogenated according to known methods, for example, by reacting with H2 gas, in the presence of Raney nickel catalyst or Pd/C catalyst, in a suitably selected solvent or mixture of solvents such as methanol/THF or ethanol/THF; to yield the corresponding compound of formula (XV).
  • The compound of formula (XV) is reacted with a suitably substituted compound of formula (XVI), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as DCM, DCE, and the like; to yield the corresponding compound of formula (XVII).
  • The compound of formula (XVII) is reacted with a suitably selected acid such as acetic acid, and the like; neat or in a suitably selected solvent; at a temperature in the range of from about 80° C. to about reflux temperature, for example at about 120° C., to yield the corresponding compound of formula (XVIII).
  • Alternatively, the compound of formula (XV) is reacted with a suitably substituted compound of formula (XXXIX), a known compound or compound prepared by known methods; in the presence of air; in a suitably selected solvent such as DMSO, and the like; at a temperature in the range of from about room temperature to about 75° C., for example at about 50° C., to yield the corresponding compound of formula (XVIII).
  • The compound of formula (XVIII) is reacted with a suitably selected base such as NaOH, LiOH, and the like; in a suitably selected solvent or mixture of solvents such as methanol/THF, ethanol/THF, and the like; to yield the corresponding compound of formula (XIX).
  • The compound of formula (XIX) is reacted with DBU; in a suitably selected solvent such as toluene, and the like; at a temperature in the range of from about 75° C. to about reflux temperature, for example, at about 90° C.; to yield the corresponding compound of formula (XX).
  • One skilled in the art will recognize that wherein the compound of formula (XVIII), formula (XIX) and/or formula (XX), Q1 is R3, then said compounds of formula (XVIII), formula (XIX) and/or formula (XX) correspond to compounds of formula (I) wherein R0 is —C(O)O—(C1-4alkyl), —C(O)OH and hydrogen, respectively.
  • Wherein the compounds of formula (XVIII), formula (XIX) and/or formula (XX) Q1 is selected from the group consisting of
  • Figure US20190031618A1-20190131-C00160
  • then the desired compound of formula (I) may be prepared by further reacting the corresponding compound of formula (XVIII), as described in Scheme 2 below.
  • Figure US20190031618A1-20190131-C00161
  • Accordingly, a suitably substituted compound of formula (XVIIIa), a compound of formula (XVIII) wherein Q2 is selected from the group consisting of
  • Figure US20190031618A1-20190131-C00162
  • and wherein PG1 is a suitably selected nitrogen protecting group such as Boc, alloc and the like; is de-protected according to known methods, (for example, wherein PG1 is Boc, the compound of formula (XVIII) is reacted with a suitably selected acid such as TFA, HCl, and the like, in a suitably selected solvent such as 1,4-dioxane, DCM, DCE, and the like; to yield the corresponding compound of formula (XXI).
  • The compound of formula (XXI) is reacted with a suitably substituted compound of formula (XXII), wherein LG1 is a suitably selected leaving group such as, Cl (for example, wherein the compound of formula (XXII) is an acyl chloride or a sulfonyl chloride), Br, and the like, a known compound or compound prepared by known methods; according to known methods; to yield the corresponding compound of formula (XXIII). For example, when the compound of formula (XXII) is an acyl chloride or a sulfonyl chloride, the compound of formula (XXI) is reacted with the compound of formula (XXII) in the presence of a base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as DCM, DCE, THF, and the like. Alternatively, wherein the compound of formula (XXII) is for example an optionally substituted phenyl bromide, and the like; the compound of formula (XXI) is reacted with the compound of formula (XXII); in the presence of a suitably selected catalyst such as Pd2(dba)3, Pd(OAc)2, and the like; in the presence of a suitably selected ligand such as dppf, XantPhos, XPhos, and the like; in the presence of a suitably selected base such as Cs2CO3, K2CO3, K3PO4, and the like; in a suitably selected organic solvent such as 1,4-dioxane, toluene, THF, DME, and the like; at an elevated temperature in the range of from about 75° C. to about 150° C.
  • The compound of formula (XXIII) is reacted with a suitably selected base such as NaOH, LiOH, and the like; in a suitably selected solvent or mixture of solvents such as methanol/THF, ethanol/THF, and the like; to yield the corresponding compound of formula (XXIV).
  • The compound of formula (XXIV) is reacted with DBU, and the like; in a suitably selected solvent such as toluene, and the like; at a temperature in the range of from about 75° C. to about reflux temperature; to yield the corresponding compound of formula (XXV).
  • One skilled in the art will recognize that the compound of formula (XXII), formula (XXIII) and/or formula (XXIV), correspond to compounds of formula (I) wherein R0 is —C(O)O—(C1-4alkyl), —C(O)OH and hydrogen, respectively.
  • Alternatively, the compound of formula (XVIIIa) is reacted with a suitably substituted base such as NaOH, LiOH, and the like; in a suitably selected solvent such as a mixture of methanol/THF, ethanol/THF, and the like; to yield the corresponding compound wherein the R0—C(O)OA1 ester group is converted to acid (—C(O)OH). This intermediate is then reacted with DBU; in a suitably selected solvent such as toluene, and the like; at a temperature in the range of from about 75° C. to about reflux temperature, for example, at about 90° C.; to yield the corresponding compound wherein the R0 acid group (—C(O)OH) is removed, such that R0 is hydrogen, a compound of formula (XVIII-ALT).
  • Figure US20190031618A1-20190131-C00163
  • The compound of formula (XVIII-ALT) is then substituted for the compound of formula (XVIIIa) in the Scheme 2 and reacted as described therein, (to remove the PG1 protecting group, and further to attach the desired R5 group), to yield the desired compound of formula (I).
  • Compounds of formula (I) wherein R0 is —CH2OH may be prepared from the corresponding compound of formula (XVIII), wherein R0 is CO2A1 by reduction. In an example, a suitably substituted compound of formula (XVIIIa) is reacted with a suitably selected reducing agent such as LAH, and the like; in a suitably selected solvent such as THF, DME, and the like; to yield the corresponding compound wherein the —CO2A1 ester at the R0 position is converted to —CH2OH. The resulting compound is then substituted for the compound of formula (XVIIIa) in Scheme 2 and reacted as described therein, to yield the desired compound of formula (I).
  • Compounds of formula (I) wherein R0 is —CH2—O—(C1-2alkyl) may be prepared by reacting a suitably substituted compound of formula (I) wherein R0 is —CH2OH with a suitably selected alkylating agent such as CH31 (for the corresponding methyl ether) or CH3CH2I (for the corresponding ethyl ether), in the presence of a suitably selected base such as NaH, KOt-Bu, NaOt-Bu, and the like; in a suitably selected solvent such as DMF, THF, and the like.
  • Compound of formula (I) wherein R0 is —CH2—O—(C1-2alkyl)-CO2H may be prepared by reacting a suitably substituted compound of formula (I) wherein R0 is —CH2OH with a suitably selected C3-4alken-1-yl bromide, a known compound or compound prepared by known methods; in the presence of a suitably selected base such as KOt-Bu, NaOt-Bu, and the like; in a suitably selected solvent such as DMSO, THF, DMF, and the like; to yield the corresponding intermediate compound, wherein the —CH2—OH at the R0 position is converted to the corresponding —CH2—O—(CH2)1-2—CH—CH2 group. This intermediate is then reacted with a suitably selected oxidizing agent such as a mixture of NaIO4 and RuCl3, and the like; in a suitably selected solvent or mixture of solvent such as a mixture of acetonitrile, DCM and water to yield the corresponding compound of formula (I) wherein R0 is —CH2—O—(C1-2alkyl)-CO2H.
  • Compounds of formula (I) wherein R3 is
  • Figure US20190031618A1-20190131-C00164
  • may be similarly prepared according to the procedure as described in Scheme 1. More particularly, a suitably substituted compound of formula (CXXV)
  • Figure US20190031618A1-20190131-C00165
  • wherein Q3 is selected from the group consisting of R4, —C(O)OA2 and —NH-PG2, wherein A2 is selected from the group consisting of C1-4alkyl, and wherein PG2 is a suitably selected nitrogen protecting group, is substituted for the compound of formula (XIII) and reacted as described in Scheme 1 to yield the corresponding compound of formula (XVIII), formula (XIX) and formula (XX), wherein the Q1 group is replaced with corresponding
  • Figure US20190031618A1-20190131-C00166
  • group.
  • One skilled in the art will recognize that the compound of formula (XVIII), formula (XIX) or formula (XX) wherein the Q1 group is replaced with
  • Figure US20190031618A1-20190131-C00167
  • and wherein Q3 is —NH-PG2 may be de-protected according to known methods (to remove the PG2 protecting group) to yield the corresponding compound of formula (I) wherein R3 4-amino-cyclohex-1-yl. This intermediate is then further reacted with a compound of formula LG2-Q4, wherein LG2 is a suitably selected leaving group such as Cl, Br, and the like; and wherein Q4 is selected from the group consisting of -phenyl and —SO2-phenyl, and wherein the phenyl is optionally substituted as defined above for the R4 substituent group; to yield the corresponding compound of formula (I) wherein R3 is
  • Figure US20190031618A1-20190131-C00168
  • and wherein R4 is selected from the group consisting of —NH-(optionally substituted phenyl) and —NH—SO2-(optionally substituted phenyl).
  • One skilled in the art will recognize that the compounds of formula (XVIII), formula (XIX) and formula (XX) wherein Q1 is replaced with
  • Figure US20190031618A1-20190131-C00169
  • and Q3 is —C(O)OA2, represent the corresponding compounds of formula (I) wherein R3 is
  • Figure US20190031618A1-20190131-C00170
  • One skilled in the art will recognize that the compound of formula (XVIII), formula (XIX) or formula (XX) wherein the Q1 group is replaced with
  • Figure US20190031618A1-20190131-C00171
  • and wherein Q3 is —C(O)OA2 may be reacted to convert the alkyl ester (i.e. —C(O)OA2) to the corresponding acid group (i.e. —C(O)OH), by for example reacting with a suitably selected base such as NaOH, LiOH, and the like; in a suitably selected solvent or mixture of solvents such as methanol/THF, ethanol/THF, and the like. The acid group (i.e. —C(O)OH) may be further, optionally reacted with NH4Cl or a suitably substituted amine (e.g. a compound of the formula NHRGRH, a known compound or compound prepared by known methods), in the presence of a suitably selected coupling agent such as HATU, DIC, EDCl, and the like; in the presence of a suitably selected base such as DIPEA, TEA, pyridine, and the like; in a suitably selected solvent such as DMF, DCM, THF and the like; to yield the corresponding compound, wherein the R4 substituent group is the corresponding amide (i.e. —C(O)—NH2 or —C(O)—NRGRH).
  • One skilled in the art will recognize that the above described transformations and variations thereof will result in the preparation of the corresponding compounds of formula (I) wherein R3 is
  • Figure US20190031618A1-20190131-C00172
  • Compounds of formula (I) wherein R3 is selected from the group consisting
  • Figure US20190031618A1-20190131-C00173
  • wherein b is 1 and L2 is —CH2CH2—O— and
  • Figure US20190031618A1-20190131-C00174
  • wherein L3 is —CH2CH2—O— may be similarly prepared as described in Scheme 1 above, by reacting a suitably substituted compound of formula (XII) with 2-hydroxyethylamine, a known compound, to yield the corresponding compound of formula (XIV), wherein the —NH-Q1 group is replaced with —NH—CH2CH2—OH. This intermediate is then reacted as described in Scheme 1 to yield the corresponding compound of formula (XX), wherein the Q1 group is replaced with —CH2CH2—OH, a compound of formula (CXX)
  • Figure US20190031618A1-20190131-C00175
  • The compound of formula (CXX) is then reacted with a suitably substituted phenol or hydroxy-pyridyl; under Mitsunobu conditions (for example, in the presence of DIAD, PPH3 and in a solvent such as THF); to yield the corresponding compound of formula (I) wherein R3 is selected from the group consisting
  • Figure US20190031618A1-20190131-C00176
  • wherein b is 1 and L2 is —CH2CH2—O— and
  • Figure US20190031618A1-20190131-C00177
  • wherein L3 is —CH2CH2—O—, respectively.
  • Compounds of formula (I) wherein R3 is selected from the group consisting
  • Figure US20190031618A1-20190131-C00178
  • wherein b is 1 and L2 is —CH2CH2CH2—NH—SO2— may be similarly prepared as described in Scheme 1 and 2, by preparing the corresponding compounds wherein the -Q2-PG1 substituent group is replaced with —CH2CH2CH2—NH—PG5 (by reacting with a suitably substituted and suitably protected amine of the formula NH2—CH2CH2CH2—NH-PG5 wherein PG5 is a suitably selected nitrogen protecting group such as Boc, alloc, and the like); and then reacting as described above to remove the PG5 protecting group and further functionalizing to the desired product by reacting with a suitably substituted sulfonyl chloride, according to known methods.
  • Compounds of formula (I) wherein R3 is selected from the group consisting of
  • Figure US20190031618A1-20190131-C00179
  • may be prepared as described in Scheme 1 above.
  • Compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00180
  • is an optionally substituted phenyl and wherein
  • Figure US20190031618A1-20190131-C00181
  • is thiazol-2-yl may alternatively be prepared as described in Scheme 3, below.
  • Figure US20190031618A1-20190131-C00182
    Figure US20190031618A1-20190131-C00183
  • Accordingly, a suitably substituted compound of formula (XXX), wherein each HAL1 is independently selected from F or Cl, a known compound or compound prepared by known methods, is reacted with a suitably substituted compound of formula (XXXI), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as DIPEA, TEA, pyridine, and the like; in a suitably selected solvent such as DMSO, acetonitrile, and the like; to yield the corresponding compound of formula (XXXII).
  • The compound of formula (XXXII) is reacted with a suitably substituted compound of formula (XXXIII), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as KOt-Bu, NaOt-Bu, and the like; in a suitably selected solvent such as THF, i-PrOH, and the like; to yield the corresponding compound of formula (XXXIV).
  • The compound of formula (XXXIV) is reacted with P2S5, a known compound; in a suitably selected solvent such as ethanol, methanol, and the like; to yield the corresponding compound of formula (XXXV). Alternatively, the compound of formula (XXIV) is reacted with H2S; in the presence of a base such as TEA; in a suitably selected solvent such as pyridine, and the like; to yield the corresponding compound of formula (XXXV).
  • The compound of formula (XXXV) is reacted with 2-bromo-1,1-diethoxyethane, a known compound; in the presence of a suitably selected acid such as acetic acid, and the like; in water; to yield the corresponding compound of formula (XXXVI) wherein
  • Figure US20190031618A1-20190131-C00184
  • is thiazol-2-yl and R1 is hydrogen.
  • Alternatively, the compound of formula (XXXV) is reacted with a suitably substituted compound of formula (XXXVII), wherein R10 is a substituent on the
  • Figure US20190031618A1-20190131-C00185
  • thiazolyl ring, as defined herein, a known compound or compound prepared by known methods; in the presence of a suitably selected acid such as acetic acid, and the like; at a temperature in the range of from about 50° C. to about 120° C., for example at about 100° C.; to yield the corresponding compound of formula (XXXVI) wherein
  • Figure US20190031618A1-20190131-C00186
  • is the corresponding 4-(R11 substituted)-thiazol-2-yl.
  • The compound of formula (XXXVI) is reacted with hydrogen (preferably hydrogen gas); in the presence of a suitably selected catalyst, such as Raney nickel or Pd/C; in a suitably selected solvent or mixture of solvents such as ethanol, THF, and the like; to yield the corresponding compound of formula (XXXVIII).
  • The compound of formula (XXXVIII) is reacted with a suitably substituted compound of formula (XXXIX), a known compound or compound prepared by known methods; in a suitably selected solvent such as DMSO, and the like; in air; at a temperature in the range of from about 20° C. to about 50° C.; to yield the corresponding compound of formula (Ib).
  • Wherein the desired compound of formula (Ib) R2 is hydrogen, the compound of formula (XXXVIII) is reacted with triethylorthoformate, a known compound; in the presence of an acid such as conc HCl, and the like; neat; at a temperature in the range of from about 75° C. to about 150° C., for example, at about 125° C.
  • Wherein the desired compound of formula (Ib) R2 is methyl, the compound of formula (XXXVIII) is reacted with trimethylorthoacetate, a known compound; in the presence of an acid such as conc HCl, and the like; neat; at a temperature in the range of from about 75° C. to about reflux temperature.
  • Compounds of formula (I) wherein R1 is hydrogen may alternatively be prepared as described in Scheme 4, below.
  • Figure US20190031618A1-20190131-C00187
  • Accordingly, a suitably substituted compound of formula (XL), wherein HAL1 is selected from F or Cl, a known compound or compound prepared by known methods, is reacted with a suitably substituted compound of formula (XXXIII), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as KOt-Bu, NaOt-Bu, and the like; in a suitably selected solvent such as THF, i-PrOH, and the like; to yield the corresponding compound of formula (XLI).
  • The compound of formula (XLI) is reacted with t-BuONO, NaNO2, and the like, a known compound; in the presence of a suitably selected source of chlorine such as CuCl2, CuCl, and the like; in a suitably selected solvent such as acetonitrile, water, and the like; to yield the corresponding compound of formula (XLII). One skilled in the art will recognize that the reaction of the compound of formula (XLI) may alternative be carried out in the presence of a source of bromide such as CuBr2, and the like; to yield the corresponding compound of formula (XLII) wherein the Cl is replaced with a Br.
  • The compound of formula (XLII) is reacted with a suitably substituted compound of formula (XLIII), wherein M3 is H or Br, a known compound or compound prepared by known methods; in the presence of a suitably selected lithiating agent such as n-BuLi, t-BuLi, and the like; in a suitably selected solvent or mixture of solvents such as hexanes, THF, DME, and the like; to yield the corresponding compound of formula (XLIV).
  • Alternatively, the compound of formula (XLII) is reacted with a suitably substituted compound of formula (XLIII), wherein M3 is MgBr or MgCl, a known compound or compound prepared by known methods; under Grignard conditions, to yield the corresponding compound of formula (XLIV).
  • The compound of formula (XLIV) is reacted with a suitably substituted compound of formula (XXXI), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as KF, K2CO3, DIPEA, and the like; in a suitably selected solvent such as DMSO, DMF, and the like; to yield the corresponding compound of formula (XLV).
  • The compound of formula (XLV) is reacted with a suitably selected reducing agent such as SnCl2, and the like; in the presence of a suitably selected acid such as acetic acid, conc. HCl, and the like; in water; at a temperature in the range of from about 20° C. to about 60° C., for example, at about 50° C.; to yield the corresponding compound of formula (XLVI).
  • The compound of formula (XLVI) is reacted with a suitably substituted compound of formula (XXXIX), a known compound or compound prepared by known methods; in air; in a suitably selected solvent such as DMSO, and the like; to yield the corresponding compound of formula (Ic).
  • Compounds of formula (I) (for example, compounds of formula (I) wherein
  • Figure US20190031618A1-20190131-C00188
  • are each an optionally substituted phenyl) may alternatively be prepared as described in Scheme 5, below.
  • Figure US20190031618A1-20190131-C00189
  • Accordingly, a suitably substituted compound of formula (XLVII), wherein Q1 is selected from the group consisting of —R3,
  • Figure US20190031618A1-20190131-C00190
  • a known compound or compound prepared as described herein, is reacted with N,O-dimethylhydroxylamine, a known compound; in the presence of a suitably selected base such as LiHMDS, NaHMDS, and the like; in a suitably selected solvent such as THF, DME, and the like; to yield the corresponding compound of formula (XLVIII).
  • The compound of formula (XLVIII) is reacted with a suitably substituted compound of formula (XLIX), wherein M1 is MgBr or MgCl, a known compound or compound prepared by known methods; under Grignard conditions; to yield the corresponding compound of formula (L).
  • The compound of formula (L) is reacted with a suitably substituted compound of formula (LI), where M2 is I, a known compound or compound prepared by known methods; in the presence of magnesium; in the presence of 12, in a suitably selected solvent such as THF; to yield the corresponding compound of formula (LII). Alternatively, the compound of formula (L) is reacted with a suitably substituted compound of formula (LI) wherein M2 is MgBr or MgCl; under Grignard conditions; to yield the corresponding compound of formula (LII). Alternatively, the compound of formula (L) is reacted with a suitably substituted compound of formula (LI) wherein M2 is Li; according to known methods; to yield the corresponding compound of formula (LII).
  • The compound of formula (LII) is reacted with Et3SiH in combination with TFA or SnCl2 in combination with HCl or TiCl4; in a suitably selected organic solvent such as DCM, DCE, and the like; to yield the corresponding compound of formula (LIII), wherein Q2 is selected from the group consisting of —R3,
  • Figure US20190031618A1-20190131-C00191
  • One skilled in the art will recognize that in the reaction of the compound of formula (LII) to yield the corresponding compound of formula (LIII), wherein Q1 is R3, the R3 group does not participate in the reaction, whereas when Q1 is selected from the group consisting of
  • Figure US20190031618A1-20190131-C00192
  • the PG1 group is simultaneously removed.
  • One skilled in the art will further recognize that for the compound of formula (LIII) when Q2 is R3, then the compound of formula (LIII) corresponds to the compound of formula (I). Wherein the compound of formula (LIII), Q2 is selected from the group consisting of
  • Figure US20190031618A1-20190131-C00193
  • the desired compounds of formula (I) may be prepared by further reacting the compound of formula (LIII), as described in more detail hereinafter (for example by reacting with a suitably substituted alkylating reagent, with a suitably selected acid chloride, a suitably selected sulfonyl chloride, and the like).
  • Compounds of formula (LVII) may be prepared as described in Scheme 6, below.
  • Figure US20190031618A1-20190131-C00194
  • Accordingly, a suitably substituted compound of formula (CLIII), a known compound or compound prepared by known methods, is reacted with a suitably substituted compound of formula (XIII), wherein Q1 is selected from the group consisting of —R3—,
  • Figure US20190031618A1-20190131-C00195
  • a known compound or compound prepared by known methods; in the presence of s suitably selected base such as DIPEA, TEA, pyridine, and the like; in a suitably selected solvent such as acetonitrile, DMF, and the like; at a temperature in the range of from about 20° C. to about reflux, for example at about 85° C.; to yield the corresponding compound of formula (LIV).
  • The compound of formula (LIV) is hydrogenated by reacting with, for example hydrogen gas, in the presence of a suitably selected catalyst such as Raney nickel, Pd/C, and the like; in a suitably selected solvent or mixture of solvents such as methanol/THF, ethanol/THF, and the like; to yield the corresponding compound of formula (LV).
  • The compound of formula (LV) is reacted with a suitably substituted compound of formula (XVI), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as DCM, THF, and the like; to yield the corresponding compound of formula (LVI).
  • The compound of formula (LVI) is reacted with a suitably selected acid such as acetic acid; neat; at a temperature in the range of from about 60° C. to about 150° C., for example at about 120° C.; to yield the corresponding compound of formula (LVII), wherein Q2 is selected from the group consisting of —R3,
  • Figure US20190031618A1-20190131-C00196
  • Alternatively, the compound of formula (LV) is reacted with a suitably substituted compound of formula (XXXIX), a known compound or compound prepared by known methods; in air; in a suitably selected solvent such as DMSO, and the like; to yield the corresponding compound of formula (LVII).
  • One skilled in the art will recognize that wherein the compound of formula (LVII) Q2 is R3, then the compound of formula (LVII) corresponds to the compound of formula (XLVII).
  • One skilled in the art will further recognize that wherein the compound of formula (LVI) Q1 is selected from the group consisting of
  • Figure US20190031618A1-20190131-C00197
  • the reaction of the compound of formula (LVI) with acetic acid will result in not only the cyclization of the benzimidazole ring structure, but also the removal of the PG1 group, to yield the corresponding compound of formula (LVII) wherein Q2 is selected from the group consisting of
  • Figure US20190031618A1-20190131-C00198
  • The compound of formula (LVII) is then further reacted, according to known methods, to protect the nitrogen atom of the Q1 group, as needed or desired. For example, the compound of formula (LVII) may be reacted with BOC anhydride, in the presence of a base such as NaHCO3, and the like, in a solvent such as DCM, and the like; to yield the corresponding compound of formula (XLVII), wherein PG1 is BOC.
  • Compounds of formula (I) wherein R1 is C1-4alkoxy may be prepared from a suitably substituted intermediate compound of formula (LIX), which may prepared as described in Scheme 7 below.
  • Figure US20190031618A1-20190131-C00199
  • Accordingly, a suitably substituted compound of formula (XI) is reacted with a suitably substituted compound of formula (LVIII), a known compound or compound prepared by known methods; in the presence of a base such as LiHMDS, NaHMDS, and the like; in a suitably selected solvent such as 1,4-dioxane, THF, and the like; to yield the corresponding compound of formula (LIX).
  • The compound of formula (LIX) is reacted with a suitably selected sodium alkoxide (NaOA3) or potassium alkoxide (KOA3), wherein A3 is a C1-4alkyl and wherein —OA3 corresponds to the desired R1 alkoxy group; in a suitably selected solvent such as DMF, THF, and the like; to yield the corresponding compound of formula (LX). One skilled in the art will recognize that wherein the sodium alkoxide is sodium methoxide, said reagent is preferably added as a mixture with methanol.
  • The compound of formula (LX) is then substituted for the compound of formula (XII) in Scheme 1, and reacted as described in the Schemes herein; to yield the desired compound of formula (I) wherein R1 is C1-4alkoxy.
  • One skilled in the art will recognize that the R2 group may be incorporated into the compound of formula (I) as a single substituent group (as described in the Schemes above and the examples which follow hereinafter) or may alternatively, be incorporated into the compound of formula (I) via two or more reaction steps.
  • More particularly, the R2 group may be incorporated into the desired compound of formula (I) as described in Scheme 8, below.
  • Figure US20190031618A1-20190131-C00200
  • Accordingly, a suitably substituted compound of formula (LXI), prepared according to the processes as herein described is reacted with a suitably substituted R2 containing reagent, a compound of formula (LXII); to yield the corresponding compound of formula (LXIII) (a compound of formula (I) wherein R1 and R0 are each hydrogen).
  • In an example, the compound of formula (LXII) corresponds to a suitably substituted aldehyde (wherein X is —CHO); and the compound of formula (LXI) is reacted with the compound of formula (LXII) in air; in a suitably selected solvent such as DMSO, and the like; to yield the corresponding compound of formula (LXIII).
  • In another example, the compound of formula (LXII) corresponds to a suitably substituted acid (wherein X is —C(O)OH); and the compound of formula (LXI) is reacted with the compound of formula (LXII), in the presence of a suitably selected acid such as TFA, and the like; neat in a suitably selected solvent; to yield the corresponding compound of formula (LXIII).
  • In another example, the compound of formula (LXII) corresponds to R2—C(OCH3)3, wherein R2 is C1-4alkyl, and the compound of formula (LXI) is reacted with the compound of formula (LXII) in the presence of a suitably selected acid such as HCl; neat or in a suitably selected solvent; to yield the corresponding compound of formula (LXIII). One skilled in the art will recognize that compounds of formula (I) wherein R2 is hydrogen, may be similarly prepared from the compound of formula (LXI) with a compound of the formula H—C(OCH3)3, as described above.
  • Compounds of formula (I) wherein R2 is NH2 may be similarly prepared by reacting a suitably substituted compound of formula (LXI) with cyanogen bromide, a known compound; in a suitably selected solvent such as ethanol, methanol, and the like; to yield the corresponding compound of formula (LXIII) wherein R2 is NH2.
  • Compounds of formula (I) wherein R2 is NRERF (and wherein one or both of RE and RF are selected C1-4alkyl) may be similarly prepared by reacting a suitably substituted compound of formula (LXI) with 1,1,-carbonyldiimidazole, a known compound; in a suitably selected solvent such as THF, DCM, and the like; to yield the corresponding compound of formula (LXIII) wherein R2 group is replaced with a ═O group; which compound is then reacted with a suitably selected source of chlorine such as POCl3, and the like; neat or in a suitably selected solvent; at a temperature in the range of from about 50° C. to about 120° C., for example at about 90° C.; to yield the corresponding compound of formula (LXIII) wherein R2 is chloro; and which compound is further reacted with a suitably substituted amine of the formula NHRERF, a known compound or compound prepared by known methods; in a suitably selected solvent such as THF, DCM, 1,4-dioxane, and the like; to yield the corresponding compound of formula (LXIII) wherein R2 is NRERF.
  • One skilled in the art will further recognize that the R2 group may be incorporated into the desired compound of formula (I) as a complete substituent group, or may alternatively be incorporated via two or more reaction steps. For example, wherein R2 is —CH2CH2—NH2, a compound of formula (LXIII) wherein R2 is —CH2CH2—C(O)O—CH2CH3 may be prepared as described herein and then reacted with a suitably selected base such as NaOH, and the like, according to known methods; to yield the corresponding compound wherein the ester is converted to the corresponding acid (i.e. R2 is —CH2CH2—C(O)OH). This compound may then be further reacted in a mixture of DPPA, TEA, benzene, according to known methods, to yield the corresponding compound wherein R2 is —CH2CH2—NH2. Additional transformations would be readily known to those skilled in the art, and are further described in specific examples which follow hereinafter.
  • Compounds of formula (I) wherein R3 is selected from the group consisting of
  • Figure US20190031618A1-20190131-C00201
  • may alternatively be prepared according to the process as outlined in Scheme 9, below.
  • Figure US20190031618A1-20190131-C00202
  • Accordingly, a suitably substituted compound of formula (LXIV), wherein Q3 is
  • Figure US20190031618A1-20190131-C00203
  • a compound prepared for example as described in the Schemes 1-2 above, is reacted with a suitably substituted compound of formula (LXV), wherein LG3 is a suitably selected leaving group, a known compound or compound prepared by known methods; to yield the corresponding compound of formula (Ie).
  • In an example, the compound of formula (LXIV) is reacted with a compound of formula (LXV), a suitably substituted sulfonyl chloride, wherein LG3 is chloro; in the presence of a suitably selected base such as K2CO3, Na2CO3, TEA, DIPEA, pyridine, and the like; to yield the corresponding compound of formula (Ie) wherein R5 is a substituent group bound through a sulfonyl (i.e. —SO2—) group.
  • In another example, the compound of formula (LXIV) is reacted with a compound of formula (LXV), a suitably substituted phenyl bromide, and the like, wherein LG3 is bromo; in the presence of a suitably selected catalyst such as Pd2(dba)3, Pd(OAc)2, and the like; in the presence of a suitably selected ligand such as dppf, XantPhos, XPhos, and the like; in the presence of a suitably selected base such as Cs2CO3, K2CO3, K3P04, and the like; in a suitably selected organic solvent such as 1,4-dioxane, toluene, THF, DME, and the like; at an elevated temperature in the range of from about 75° C. to about 150° C.; to yield the corresponding compound of formula (Ie) wherein R5 is the corresponding optionally substituted phenyl, and the like.
  • In another example, the compound of formula (LXIV) is reacted with a compound of formula (LXV), a suitably substituted C1-4alkyl bromide, and the like, wherein LG3 is bromo; in the presence of a suitably selected base such as Hunig's base, K2CO3, and the like; in a suitably selected solvent such as acetonitrile, and the like; to yield the corresponding compound of formula (Ia) wherein R5 is the corresponding optionally substituted C1-4alkyl, and the like.
  • In another example, the compound of formula (LXIV) is reacted with a compound of formula (LXV), a suitably substituted aldehyde, wherein LG3 is ═O; in the presence of a suitably selected reducing agent such as NaBH(OAc)3, and the like; in a suitably selected solvent such as DCE, methanol, ethanol, and the like; to yield the corresponding compound of formula (Ia). One skilled in the art will recognize that the carbon atom of the aldehyde of formula (LXV) is incorporated into the R5 substituent group as a —CH2— (for example wherein the compound of formula (LXV) is an optionally substituted phenyl aldehyde, then the resulting R5 substituent group is the corresponding, optionally substituted benzyl group.) Alternatively, the compound of formula (LXIV) is reacted with a suitably substituted isocyanate, in the presence of a suitably selected base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as DCM, THF, DMF, and the like; to yield the corresponding compound wherein the R5 group is bound through a —C(O)—NH— group.
  • Alternatively, the compound of formula (LXIV) is reacted with a suitably substituted chloroformate, in the presence of a suitably selected base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as THF, and the like; to yield the corresponding compound wherein the R5 group is bound through a —C(O)—O— group.
  • Alternatively, the compound of formula (LXIV) is reacted with CDI, a known compound; in the presence of a suitably selected base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as DCM, THF, and the like; to yield the corresponding compound wherein the R5 group replaced with —C(O)-imidazol-1-yl; which compound is further reacted with a suitably substituted alcohol or amine; in the presence of a suitably selected base such as Cs2CO3, K2CO3, TEA, DIPEA, and the like; in a suitably selected solvent such as DMF, acetonitrile, and the like; to yield the corresponding compound wherein the R5 group is bound through —C(O)—O— or a —C(O)—NH— group, respectively.
  • Compounds of formula (I), wherein R0 is hydroxy may alternatively be prepared as described in Scheme 10, below.
  • Figure US20190031618A1-20190131-C00204
  • Accordingly, a suitably substituted compound of formula (CLXV), wherein Q1 is as defined above, a known compound or compound prepared as described herein, is reacted with a suitably substituted compound of formula (LXVI), a known compound or compound prepared by known methods; in the presence of a suitably selected lithiating reagent such as n-BuLi, t-BuLi, and the like; in a suitably selected solvent such as THF, DME, and the like; to yield the corresponding compound of formula (LXXI).
  • Alternatively, a suitably substituted compound of formula (CLXV), a known compound or compound prepared by known methods, is reacted with a suitably substituted compound of formula (LXVII), a known compound or compound prepared by known methods; in the presence of a suitably selected lithiating reagent such as n-BuLi, t-BuLi, and the like; in a suitably selected solvent such as THF, DME, and the like; to yield the corresponding compound of formula (LXVIII).
  • The compound or formula (LXVIII) is reacted with a suitably selected oxidizing agent such as DMP, and the like; in a suitably selected solvent such as DCM, and the like; to yield the corresponding compound of formula (LXIX).
  • The compound of formula (LXIX) is reacted with a suitably substituted compound of formula (LXX), wherein M1 is MgBr or MgCl, a known compound or compound prepared by known methods; under Grignard conditions; to yield the corresponding compound of formula (LXXI). One skilled in the art will recognize that the compound of formula (LXIX) may alternatively be reacted with a compound of formula (LXX) wherein M1 is replaced with lithium, according to known methods, to yield the corresponding compound of formula (LXXI).
  • One skilled in the art will recognize that wherein Q1 is R3, then the compound of formula (LXXI) is the corresponding compound of formula (I). One skilled in the art will further recognize that when in the compound of formula (LXXI), Q1 is other than R3, then the compound of formula (LXXI) may be further reacted, as described herein, to yield the desired compound of formula (I). For example, the compound of formula (LXXI) may be substituted for the compound of formula (XVIIIa) in Scheme 2 and reacted as described therein to yield the desired R3 substituent group.
  • One skilled in the art will further recognize that the compound of formula (LXXI) may be further optionally reacted, as described herein to convert the hydroxy group at the R0 position to hydrogen.
  • One skilled in the art will further recognize that the compounds of formula (LXV) may be prepared according to known methods, and/or by adapting the procedures as described in the Example which follow hereinafter.
  • Compounds of formula (LXV) wherein R1 is hydrogen may alternative be prepared as described in Scheme 11 below.
  • Figure US20190031618A1-20190131-C00205
  • Accordingly, a suitably substituted compound of formula (LXXI), wherein Q1 is as defined above, a known compound or compound prepared by known methods, is reacted with 4-bromo-2-fluoro-1-nitrobenzene, a known compound; in the presence of a suitably selected base such as DIPEA, TEA, pyridine and the like; in a suitably selected solvent such as acetonitrile, DCM, and the like; to yield the corresponding compound of formula (LXXII).
  • The compound of formula (LXXII) is reacted Fe in the presence of NH4Cl; in a suitably selected solvent such as methanol, ethanol, and the like; in the presence of water; at a temperature in the range of from about 50° C. to about 100° C., for example at about 80° C.; to yield the corresponding compound of formula (LXXIII). One skilled in the art will recognize that alternate reduction conditions, for example reacting the compound of formula (LXXII) with H2 gas in the presence of Raney nickel in a mixture of methanol/THF may also be used to yield the corresponding compound of formula (LXXIII).
  • The compound of formula (LXXIII) is reacted with a suitably substituted compound of formula (XXXIX), a known compound or compound prepared by known methods; in the presence of air; in a suitably selected solvent such as DMSO, and the like; at a temperature in the range of from about room temperature to about 75° C., for example at about 50° C., to yield the corresponding compound of formula (LXVa).
  • Compounds of formula (LXV) wherein R1 is —OC1-4alkyl may alternatively be prepared as described in Scheme 12 below.
  • Figure US20190031618A1-20190131-C00206
  • Accordingly, 2-amino-3-nitrophenol, a known compound, is reacted with a suitably selected source of bromine such as Br2, and the like; in the presence of a suitably selected acid such as acetic acid, and the like; neat or in a suitably selected solvent and the like; to yield 2-amino-5-bromo-3-nitrophenol.
  • The 2-amino-5-bromo-3-nitrophenol is reacted with a suitably selected alkylating agent, according to known methods, to yield the corresponding compound of formula (LXXIV), wherein A1 is the corresponding C1-4alkyl. For example, wherein the compound of formula (LXXIV) A1 is —CH3, the 2-amino-5-bromo-3-nitrophenol may be reacted with CH31, in the presence of a base such as K2CO3, and the like; in a solvent such as DMF, and the like.
  • The compound of formula (LXXIV) is reacted with a suitably substituted compound of formula (XVI), a known compound or compound prepared by known methods; in the presence of a suitably selected base such as TEA, DIPEA, pyridine, and the like; in a suitably selected solvent such as DCM, DCE, and the like; to yield the corresponding compound of formula (LXXV).
  • The compound of formula (LXXV) is reacted Fe in the presence of NH4Cl; in a suitably selected solvent such as methanol, ethanol, and the like; in the presence of water; at a temperature in the range of from about 50° C. to about 100° C., for example at about 80° C.; to yield the corresponding compound of formula (LXXVI).
  • The compound of formula (LXXVI) is reacted with a suitably substituted aldehyde or carbonyl compound, according to known methods or methods as described in the Schemes and Examples herein; to yield the corresponding compound of formula (LXXVII), wherein Q1 is as defined herein. For example, the compound of formula (LXXVI) may be reacted with 1-((trifluoromethyl)sulfonyl)piperidin-4-one, in the presence of NaBH(OAc)3, in the presence of acetic acid, in DCE, to yield the corresponding compound of formula (LXXVII) wherein Q1 is 1-trifluoromethyl-sulfonyl-piperidin-4-yl.
  • The compound of formula (LXXVII) is reacted with a suitably selected acid such as acetic acid, and the like; neat or in a suitably selected solvent; to yield the corresponding compound of formula (LXVb).
  • One skilled in the art will recognize that the 2-amino-5-bromo-3-nitrophenol may alternatively be reacted with (CH3)3Si—CH2CH2—O—CH2Cl, a known compound, in the presence of a suitably selected base such as K2CO3, Na2CO3, and the like; in a suitably selected solvent such as DMF, acetonitrile, and the like; to yield the corresponding compound of formula (LXXIV) wherein the —OA1 group is replaced with —O—CH2—O—CH2CH2—Si(CH3)3. Said intermediate is then reacted as described in Scheme 12 above to yield the corresponding compound of formula (CLXV)
  • Figure US20190031618A1-20190131-C00207
  • The compound of formula (CLXV) may then be reacted according to the procedures as described in the Schemes and Examples herein to yield the corresponding compound of formula (I) wherein the R1 group is replaced with —O—CH2—O—CH2CH2—Si(CH3)3, which compound is then de-protected according to known methods, to yield the desired compound of formula (I) wherein R1 is hydroxy.
  • One skilled in the art will further recognize that the R5 substituent group may alternatively be incorporated into the desired compound of formula (I) via multiple reaction steps, according to known methods, and as exemplified for representative compounds in the Synthesis Examples which follow hereinafter.
  • One skilled in the art will further recognize that additional substituent groups as defined herein may be similarly incorporated into the desired compound of formula (I) via one or more coupling reactions and/or substituent transformations (e.g. removal of an alkyl group, conversion of a —CO2H group to corresponding —C(O)NH2 group, hydrogenation, reductive amination, nucleophilic substitution, Suzuki coupling, Mitsunobu coupling, etc.), according to the methods known in the art, and/or according to procedures as described in the general synthesis schemes and examples herein. One skilled in the art will further recognize that the reaction steps and processes described herein (in the synthesis schemes and examples) may be adapted and/or applied to the synthesis of any of the compounds of the present invention.
  • One skilled in the art will further recognize that in any of the processes described herein, the
  • Figure US20190031618A1-20190131-C00208
  • rings (as substituent groups or in reagents containing said substituent groups) may be interchanged, and the synthesis completed as described, to yield the corresponding desired compound.
  • One skilled in the art will further recognize that in the synthesis of the compounds of formula (I) of the present invention, the various substituent groups may be incorporated in the order specifically described in the Scheme and Examples herein, or may alternatively be incorporated in a different order, adapting and/or adjusting the individual reaction step conditions to yield the desired intermediate or product compound.
    • Pharmaceutical Compositions and Methods of Treatment
  • The present invention further comprises pharmaceutical compositions containing one or more compounds of formula (I) with a pharmaceutically acceptable carrier. Pharmaceutical compositions containing one or more of the compounds of the invention described herein as the active ingredient can be prepared by intimately mixing the compound or compounds with a pharmaceutical carrier according to conventional pharmaceutical compounding techniques. The carrier may take a wide variety of forms depending upon the desired route of administration (e.g., oral, parenteral). Thus for liquid oral preparations such as suspensions, elixirs and solutions, suitable carriers and additives include water, glycols, oils, alcohols, flavoring agents, preservatives, stabilizers, coloring agents and the like; for solid oral preparations, such as powders, capsules and tablets, suitable carriers and additives include starches, sugars, diluents, granulating agents, lubricants, binders, disintegrating agents and the like. Solid oral preparations may also be coated with substances such as sugars or be enteric-coated so as to modulate major site of absorption. For parenteral administration, the carrier will usually consist of sterile water and other ingredients may be added to increase solubility or preservation. Injectable suspensions or solutions may also be prepared utilizing aqueous carriers along with appropriate additives.
  • To prepare the pharmaceutical compositions of this invention, one or more compounds of the present invention as the active ingredient is intimately admixed with a pharmaceutical carrier according to conventional pharmaceutical compounding techniques, which carrier may take a wide variety of forms depending of the form of preparation desired for administration, e.g., oral or parenteral such as intramuscular. In preparing the compositions in oral dosage form, any of the usual pharmaceutical media may be employed. Thus, for liquid oral preparations, such as for example, suspensions, elixirs and solutions, suitable carriers and additives include water, glycols, oils, alcohols, flavoring agents, preservatives, coloring agents and the like; for solid oral preparations such as, for example, powders, capsules, caplets, gelcaps and tablets, suitable carriers and additives include starches, sugars, diluents, granulating agents, lubricants, binders, disintegrating agents and the like. Because of their ease in administration, tablets and capsules represent the most advantageous oral dosage unit form, in which case solid pharmaceutical carriers are obviously employed. If desired, tablets may be sugar coated or enteric coated by standard techniques. For parenterals, the carrier will usually comprise sterile water, through other ingredients, for example, for purposes such as aiding solubility or for preservation, may be included. Injectable suspensions may also be prepared, in which case appropriate liquid carriers, suspending agents and the like may be employed. The pharmaceutical compositions herein will contain, per dosage unit, e.g., tablet, capsule, powder, injection, teaspoonful and the like, an amount of the active ingredient necessary to deliver an effective dose as described above. The pharmaceutical compositions herein will contain, per unit dosage unit, e.g., tablet, capsule, powder, injection, suppository, teaspoonful and the like, of from about 0.01 mg to about 1000 mg or any amount or range therein, and may be given at a dosage of from about 0.01 mg/kg/day to about 300 mg/kg/day, or any amount or range therein, preferably from about 0.1 mg/kg/day to about 50 mg/kg/day, or any amount or range therein, preferably from about 0.5 mg/kg/day to about 15 mg/kg/day, or any amount or range therein. The dosages, however, may be varied depending upon the requirement of the patients, the severity of the condition being treated and the compound being employed. The use of either daily administration or post-periodic dosing may be employed.
  • Preferably these compositions are in unit dosage forms such as tablets, pills, capsules, powders, granules, sterile parenteral solutions or suspensions, metered aerosol or liquid sprays, drops, ampoules, autoinjector devices or suppositories; for oral parenteral, intranasal, sublingual or rectal administration, or for administration by inhalation or insufflation. Alternatively, the composition may be presented in a form suitable for once-weekly or once-monthly administration; for example, an insoluble salt of the active compound, such as the decanoate salt, may be adapted to provide a depot preparation for intramuscular injection. For preparing solid compositions such as tablets, the principal active ingredient is mixed with a pharmaceutical carrier, e.g. conventional tableting ingredients such as corn starch, lactose, sucrose, sorbitol, talc, stearic acid, magnesium stearate, dicalcium phosphate or gums, and other pharmaceutical diluents, e.g. water, to form a solid preformulation composition containing a homogeneous mixture of a compound of the present invention, or a pharmaceutically acceptable salt thereof. When referring to these preformulation compositions as homogeneous, it is meant that the active ingredient is dispersed evenly throughout the composition so that the composition may be readily subdivided into equally effective dosage forms such as tablets, pills and capsules. This solid preformulation composition is then subdivided into unit dosage forms of the type described above containing from about 0.01 mg to about 1,000 mg, or any amount or range therein, of the active ingredient of the present invention. The tablets or pills of the novel composition can be coated or otherwise compounded to provide a dosage form affording the advantage of prolonged action. For example, the tablet or pill can comprise an inner dosage and an outer dosage component, the latter being in the form of an envelope over the former. The two components can be separated by an enteric layer which serves to resist disintegration in the stomach and permits the inner component to pass intact into the duodenum or to be delayed in release. A variety of material can be used for such enteric layers or coatings, such materials including a number of polymeric acids with such materials as shellac, cetyl alcohol and cellulose acetate.
  • The liquid forms in which the novel compositions of the present invention may be incorporated for administration orally or by injection include, aqueous solutions, suitably flavoured syrups, aqueous or oil suspensions, and flavoured emulsions with edible oils such as cottonseed oil, sesame oil, coconut oil or peanut oil, as well as elixirs and similar pharmaceutical vehicles. Suitable dispersing or suspending agents for aqueous suspensions, include synthetic and natural gums such as tragacanth, acacia, alginate, dextran, sodium carboxymethylcellulose, methylcellulose, polyvinyl-pyrrolidone or gelatin.
  • The method of treating disorders described herein may also be carried out using a pharmaceutical composition comprising any of the compounds as defined herein and a pharmaceutically acceptable carrier. The pharmaceutical composition may contain between about 0.01 mg and about 1000 mg of the compound, or any amount or range therein; preferably from about 1.0 mg to about 500 mg of the compound, or any amount or range therein, and may be constituted into any form suitable for the mode of administration selected. Carriers include necessary and inert pharmaceutical excipients, including, but not limited to, binders, suspending agents, lubricants, flavorants, sweeteners, preservatives, dyes, and coatings. Compositions suitable for oral administration include solid forms, such as pills, tablets, caplets, capsules (each including immediate release, timed release and sustained release formulations), granules, and powders, and liquid forms, such as solutions, syrups, elixirs, emulsions, and suspensions. Forms useful for parenteral administration include sterile solutions, emulsions and suspensions.
  • Advantageously, compounds of the present invention may be administered in a single daily dose, or the total daily dosage may be administered in divided doses of two, three or four times daily. Furthermore, compounds for the present invention can be administered in intranasal form via topical use of suitable intranasal vehicles, or via transdermal skin patches well known to those of ordinary skill in that art. To be administered in the form of a transdermal delivery system, the dosage administration will, of course, be continuous rather than intermittent throughout the dosage regimen.
  • For instance, for oral administration in the form of a tablet or capsule, the active drug component can be combined with an oral, non-toxic pharmaceutically acceptable inert carrier such as ethanol, glycerol, water and the like. Moreover, when desired or necessary, suitable binders; lubricants, disintegrating agents and coloring agents can also be incorporated into the mixture. Suitable binders include, without limitation, starch, gelatin, natural sugars such as glucose or beta-lactose, corn sweeteners, natural and synthetic gums such as acacia, tragacanth or sodium oleate, sodium stearate, magnesium stearate, sodium benzoate, sodium acetate, sodium chloride and the like. Disintegrators include, without limitation, starch, methyl cellulose, agar, bentonite, xanthan gum and the like.
  • The liquid forms may contain suitably flavored suspending or dispersing agents such as the synthetic and natural gums, for example, tragacanth, acacia, methyl-cellulose and the like. For parenteral administration, sterile suspensions and solutions are desired. Isotonic preparations which generally contain suitable preservatives are employed when intravenous administration is desired.
  • To prepare a pharmaceutical composition of the present invention, a compound of formula (I) as the active ingredient is intimately admixed with a pharmaceutical carrier according to conventional pharmaceutical compounding techniques, which carrier may take a wide variety of forms depending of the form of preparation desired for administration (e.g. oral or parenteral). Suitable pharmaceutically acceptable carriers are well known in the art. Descriptions of some of these pharmaceutically acceptable carriers may be found in The Handbook of Pharmaceutical Excipients, published by the American Pharmaceutical Association and the Pharmaceutical Society of Great Britain.
  • Methods of formulating pharmaceutical compositions have been described in numerous publications such as Pharmaceutical Dosage Forms: Tablets, Second Edition, Revised and Expanded, Volumes 1-3, edited by Lieberman et al; Pharmaceutical Dosage Forms: Parenteral Medications, Volumes 1-2, edited by Avis et al; and Pharmaceutical Dosage Forms: Disperse Systems, Volumes 1-2, edited by Lieberman et al; published by Marcel Dekker, Inc.
  • Compounds of the present invention may be administered in any of the foregoing compositions and according to dosage regimens established in the art whenever treatment of metabolic disorders is required.
  • The daily dosage of the products may be varied over a wide range from about 0.01 mg to about 1,000 mg per adult human per day, or any amount or range therein. For oral administration, the compositions are preferably provided in the form of tablets containing, 0.01, 0.05, 0.1, 0.5, 1.0, 2.5, 5.0, 10.0, 15.0, 25.0, 50.0, 100, 150, 200, 250 and 500 milligrams of the active ingredient for the symptomatic adjustment of the dosage to the patient to be treated. An effective amount of the drug is ordinarily supplied at a dosage level of from about 0.01 mg/kg to about 300 mg/kg of body weight per day, or any amount or range therein. Preferably, the range is from about 0.01 to about 50.0 mg/kg of body weight per day, or any amount or range therein. More preferably, from about 0.05 to about 15.0 mg/kg of body weight per day, or any amount or range therein. More preferably, from about 0.07 to about 7.5 mg/kg of body weight per day, or any amount or range therein. The compounds may be administered on a regimen of 1 to 4 times per day.
  • Optimal dosages to be administered may be readily determined by those skilled in the art, and will vary with the particular compound used, the mode of administration, the strength of the preparation, the mode of administration, and the advancement of the disease condition. In addition, factors associated with the particular patient being treated, including patient age, weight, diet and time of administration, will result in the need to adjust dosages.
  • One skilled in the art will recognize that, both in vivo and in vitro trials using suitable, known and generally accepted cell and/or animal models are predictive of the ability of a test compound to treat or prevent a given disorder.
  • One skilled in the art will further recognize that human clinical trials including first-in-human, dose ranging and efficacy trials, in healthy patients and/or those suffering from a given disorder, may be completed according to methods well known in the clinical and medical arts.
    • EXAMPLES
  • The following Examples are set forth to aid in the understanding of the invention, and are not intended and should not be construed to limit in any way the invention set forth in the claims which follow thereafter.
  • In the Synthesis Examples which follow, some synthesis products are listed as having been isolated as a residue. It will be understood by one of ordinary skill in the art that the term “residue” does not limit the physical state in which the product was isolated and may include, for example, a solid, an oil, a foam, a gum, a syrup, and the like.
    • Example PH-1 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoic acid
  • Figure US20190031618A1-20190131-C00209
    • Step 1: Synthesis of methyl 2,2-bis(4-chlorophenyl)acetate
  • Into a 1000-mL round-bottom flask, was placed a solution of 2,2-bis(4-chlorophenyl)acetic acid (150 g, 533.55 mmol, 1.00 equiv) in methanol (600 mL) and sulfuric acid (50 mL). The resulting solution was stirred overnight at 80° C. The mixture was concentrated under vacuum. The reaction was then quenched by the addition of water (500 mL). The pH value of the solution was adjusted to pH 7 with sodium hydroxide. The resulting solution was extracted with ethyl acetate (3×500 mL) and the organic layers combined and dried over anhydrous sodium sulfate to yield methyl 2,2-bis(4-chlorophenyl)acetate as yellow oil. LC/MS (ES, m/z): 295 [M+H]+.
    • Step 2: Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate
  • Into a 1000-mL 3-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of methyl 2,2-bis(4-chlorophenyl)acetate (54 g, 182.95 mmol, 1.00 equiv) in tetrahydrofuran (250 mL). To the mixture was then added t-BuOK (201 mL, 1.10 equiv) dropwise with stirring at 0° C. in 20 min. To the resulting mixture was added a solution of 2,4-difluoro-1-nitrobenzene (37.5 g, 235.72 mmol, 1.05 equiv) in tetrahydrofuran (250 mL) dropwise with stirring. The resulting solution was stirred overnight at room temperature. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:20) to yield methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate as yellow oil. LC/MS (ES, m/z): 434 [M+H]+.
    • Step 3: Synthesis of tert-butyl 4-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-nitrophenyl]amino)piperidine-1-carboxylate
  • Into a 1000-mL round-bottom flask, was placed a solution of methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (35 g, 80.60 mmol, 1.00 equiv) in CH3CN (200 mL), tert-butyl 4-aminopiperidine-1-carboxylate (19 g, 94.87 mmol, 1.20 equiv) and DIEA (26 g, 201.18 mmol, 2.50 equiv). The resulting solution was stirred overnight at 85° C. The resulting mixture was concentrated under vacuum. The solids were collected by filtration to yield tert-butyl 4-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-nitrophenyl]amino)piperidine-1-carboxylate as a yellow solid. LC/MS (ES, m/z): 614 [M+H]+.
    • Step 4: Synthesis of tert-butyl 4-([2-amino-5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]phenyl]amino)piperidine-1-carboxylate
  • Into a 500-mL round-bottom flask, was placed a solution of tert-butyl 4-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-nitrophenyl]amino)piperidine-1-carboxylate (31 g, 25.22 mmol, 1.00 equiv, 50%) in methanol/THF (200/100 mL) and Raney Ni (20 g). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum to yield tert-butyl 4-([2-amino-5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]phenyl]amino)piperidine-1-carboxylate as a red solid. LC/MS (ES, m/z): 584 [M+H]+.
    • Step 5: Synthesis of tert-butyl 4-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropaneamidophenyl]amino)piperidine-1-carboxylate
  • Into a 25-mL round-bottom flask, was placed a solution of tert-butyl 4-([2-amino-5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]phenyl]amino)piperidine-1-carboxylate (24 g, 41.06 mmol, 1.00 equiv) in dichloromethane (400 ml), cyclopropanecarbonyl chloride (4.2 g, 40.18 mmol, 1.00 equiv) and triethylamine (15 g, 148.24 mmol, 3.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum to yield tert-butyl 4-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropaneamidophenyl]amino)piperidine-1-carboxylate as red oil. LC/MS (ES, m/z): 652 [M+H]+.
    • Step 6: Synthesis of tert-butyl 4-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate
  • Into a 500-mL round-bottom flask, was placed a solution of tert-butyl 4-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropaneamidophenyl]amino)piperidine-1-carboxylate (25 g, 38.31 mmol, 1.00 equiv) in acetic acid (300 mL). The resulting solution was stirred for 3 h at 120° C. The resulting mixture was concentrated under vacuum to yield tert-butyl 4-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate as red oil. LC/MS (ES, m/z): 634 [M+H]+.
    • Step 7: Synthesis of 2-(1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-2-cyclopropyl-1H-1,3-benzodiazol-6-yl)-2,2-bis(4-chlorophenyl)acetic acid
  • Into a 1000-mL round-bottom flask, was placed a solution of tert-butyl 4-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate (26 g, 40.97 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (150/150 mL) and sodium hydroxide (3N) (300 mL). The resulting solution was stirred for 4 h at 50° C. The pH value of the solution was adjusted to pH 6 with hydrogen chloride (12 mol/L). The resulting solution was extracted with ethyl acetate (3×500 mL) and the organic layers combined to yield 2-(1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-2-cyclopropyl-1H-1,3-benzodiazol-6-yl)-2,2-bis(4-chlorophenyl)acetic acid as red oil. LC/MS (ES, m/z): 620 [M+H]+.
    • Step 8: Synthesis of tert-butyl 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate
  • Into a 500-mL round-bottom flask, was placed a solution of 2-(1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-2-cyclopropyl-1H-1,3-benzodiazol-6-yl)-2,2-bis(4-chlorophenyl)acetic acid (23 g, 37.06 mmol, 1.00 equiv) in toluene (200 mL) and DBU (36 g, 236.47 mmol, 6.00 equiv). The resulting solution was stirred for 3 h at 90° C. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with DCM:MeOH (1:10) to yield tert-butyl 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate as a light-yellow solid. LC/MS (ES, m/z): 576 [M+H]+.
    • Step 9: Synthesis of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole
  • Into a 500-mL round-bottom flask, was placed a solution of tert-butyl 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate (24 g, 41.63 mmol, 1.00 equiv) in dichloromethane (100 mL) and CF3COOH (20 g, 175.41 mmol, 4.21 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The reaction was then quenched by the addition of water (100 mL). The pH value of the solution was adjusted to pH 8 with sodium carbonate (100%). The resulting solution was extracted with DCM (3×100 mL) and the organic layers combined and dried over anhydrous sodium sulfate, then concentrated under vacuum to yield 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole as a red solid. LC/MS (ES, m/z): 476 [M+H]+.
    • Step 10: Synthesis of 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoic acid
  • Into a 8-mL vial, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (200 mg, 0.42 mmol, 1.00 equiv) in tetrahydrofuran (4 mL), triethylamine (85 mg, 0.84 mmol, 2.00 equiv) and 4-(chlorosulfonyl)benzoic acid (93 mg, 0.42 mmol, 1.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Column, Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH3CN (45% CH3CN up to 65% in 8 min, up to 100% in 9 min, down to 45% in 10 min; Detector, UV 254 nm to yield 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoic acid as a white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 8.29 (d, J=8.1 Hz, 2H), 7.98 (d, J=8.1 Hz, 2H), 7.78 (s, 1H), 7.65 (d, J=8.4 Hz, 1H), 7.34-7.37 (m, 5H), 7.13-7.15 (m, 4H), 5.88 (s, 1H), 4.07 (d, J=10.8 Hz, 2H), 2.47-2.74 (m, 5H), 2.13-2.16 (m, 2H), 1.26-1.42 (m, 4H). LC/MS (ES, m/z): 660 [M+H]+.
    • Example PH-2 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(methylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00210
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting methanesulfonyl chloride for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (300 MHz, CDCl3) δ: 7.61 (d, J=8.4 Hz, 1H), 7.25-7.28 (m, 4H), 7.18 (s, 1H), 7.02-7.04 (m, 4H), 6.92 (d, J=8.4 Hz, 1H), 5.62 (s, 1H), 4.52-4.60 (m, 1H), 4.05 (d, J=12.6 Hz, 2H), 2.86-2.93 (m, 5H), 2.49-2.62 (m, 2H), 1.89-2.03 (m, 3H), 1.20-1.24 (m, 2H), 1.12-1.17 (m, 2H). LC/MS (ES, m/z): 554 [M+H]+.
    • Example PH-3 4-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)-4-oxobutanamide
  • Figure US20190031618A1-20190131-C00211
    • Step 1: Synthesis of ethyl 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-4-oxobutanoate
  • Into a 100-mL round-bottom flask, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (100 mg, 0.21 mmol, 1.00 equiv) in CH3CN (10 mL), potassium carbonate (87 mg, 0.63 mmol, 3.00 equiv) and ethyl 4-chloro-4-oxobutanoate (41.25 mg, 0.25 mmol, 1.20 equiv). The resulting solution was stirred overnight at room temperature. The reaction was then quenched by the addition of water (10 mL). The resulting solution was extracted with DCM (3×10 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum to yield ethyl 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-4-oxobutanoate as a white solid.
    • Step 2: Synthesis of 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-4-oxobutanamide
  • Into a 30-mL sealed tube, was placed a solution of ethyl 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-4-oxobutanoate (100 mg, 0.17 mmol, 1.00 equiv) in methanol/NH3 (10 mL). The resulting solution was stirred for 1 min at 70° C. The resulting mixture was concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% NH4HCO3 and CH3CN (30% CH3CN up to 80% in 7 min, up to 100% in 9 min, down to 65% in 11 min); Detector, UV 254 nm to yield 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-4-oxobutanamide as a white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 7.48 (d, J=9.3 Hz, 1H), 7.30-7.33 (m, 5H), 7.09-7.12 (m, 4H), 6.97 (d, J=8.4 Hz, 1H), 5.77 (s, 1H), 4.87-4.95 (m, 1H), 4.73 (d, J=12.0 Hz, 1H), 4.21 (d, J=15.3 Hz, 1H), 3.30-3.35 (m, 1H), 2.59-2.83 (m, 5H), 2.22-2.40 (m, 3H), 1.90-2.10 (m, 2H), 1.12-1.17 (m, 4H). LC/MS (ES, m/z): 575 [M+H]+.
    • Example PH-4 1-[1-(benzenesulfonyl)piperidin-4-yl]-6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazole
  • Figure US20190031618A1-20190131-C00212
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting benzenesulfonyl chloride for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (300 MHz, CDCl3) δ: 7.82 (d, J=6.9 Hz, 1H), 7.56-7.68 (m, 4H), 7.22-7.32 (m, 5H), 7.01-7.04 (m, 4H), 6.90 (d, J=8.1 Hz, 1H), 5.61 (s, 1H), 4.34-4.42 (m, 1H), 4.08 (d, J=11.1 Hz, 2H), 2.43-2.64 (m, 4H), 1.80-1.99 (m, 3H), 1.20-1.30 (m, 2H), 1.02-1.12 (m, 2H). LC/MS (ES, m/z): 616 [M+H]+.
    • Example PH-5 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(4-fluorophenylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00213
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting 4-fluorobenzene-1-sulfonyl chloride for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (300 MHz, CDCl3) δ: 7.84-7.89 (m, 2H), 7.64 (d, J=8.4 Hz, 1H), 7.24-7.32 (m, 7H), 7.04-7.07 (m, 4H), 6.94 (d, J=8.1 Hz, 1H), 5.64 (s, 1H), 4.39-4.46 (m, 1H), 4.09 (d, J=11.4 Hz, 2H), 2.46-2.68 (m, 4H), 1.90-2.03 (m, 3H), 1.23-1.33 (m, 2H), 1.06-1.12 (m, 2H). LC/MS (ES, m/z): 634 [M+H]+.
    • Example PH-6 6-(bis(4-chlorophenyl)methyl)-1-(1-(4-chlorophenylsulfonyl)piperidin-4-yl)-2-cyclopropyl-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00214
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting 4-chlorobenzene-1-sulfonyl chloride for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (300 MHz, DMSO-d6) δ: 7.84 (dd, J1=2.1 Hz, J2=6.6 Hz, 2H), 7.77 (dd, J1=2.1 Hz, J2=6.6 Hz, 2H), 7.52 (s, 1H), 7.35-7.43 (m, 5H), 7.12-7.14 (m, 4H), 6.81 (d, J=8.7 Hz, 1H), 5.82 (s, 1H), 4.64-4.74 (m, 1H), 3.84 (d, J=11.1 Hz, 2H), 2.51-2.61 (m, 2H), 2.35-2.42 (m, 2H), 2.14-2.20 (m, 1H), 1.85-1.95 (m, 2H), 0.96-0.98 (m, 4H). LC/MS (ES, m/z): 651 [M+H]+.
    • Example PH-7 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(4-methoxyphenylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00215
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting 4-methoxybenzene-1-sulfonyl chloride for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (300 MHz, CDCl3) δ: 7.78 (d, J=9.0 Hz, 2H), 7.66 (d, J=8.4 Hz, 1H), 7.28-7.31 (m, 5H), 7.04-7.08 (m, 6H), 6.94 (d, J=8.4 Hz, 1H), 5.64 (s, 1H), 4.36-4.46 (m, 1H), 4.07 (d, J=11.1 Hz, 2H), 3.93 (s, 3H), 2.44-2.64 (m, 4H), 1.90-2.01 (m, 3H), 1.15-1.35 (m, 3H), 1.11-1.18 (m, 2H). LC/MS (ES, m/z): 646 [M+H]+.
    • Example PH-8 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(4 (trifluoromethyl)phenylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00216
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting 4-(trifluoromethyl)benzene-1-sulfonyl chloride 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (300 MHz, CDCl3) δ: 7.90-8.01 (m, 2H), 7.84-7.87 (m, 2H), 7.62 (d, J=8.4 Hz, 1H), 7.22-7.26 (m, 5H), 7.01-7.08 (m, 4H), 6.92 (d, J=9.0 Hz, 1H), 5.62 (s, 1H), 4.40-4.50 (m, 1H), 4.09 (d, J=10.8 Hz, 2H), 2.45-2.66 (m, 4H), 1.98-2.02 (m, 2H), 1.85-1.95 (m, 1H), 1.20-1.35 (m, 2H), 1.07-1.15 (m, 2H). LC/MS (ES, m/z): 684 [M+H]+.
    • Example PH-9 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(4-(trifluoromethoxy)phenylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00217
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting 4-(trifluoromethoxy)benzene-1-sulfonyl chloride for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (300 MHz, CDCl3) δ: 7.87 (d, J=8.7 Hz, 2H), 7.61-7.66 (m, 1H), 7.41 (d, J=8.4 Hz, 2H), 7.24-7.28 (m, 5H), 7.01-7.04 (m, 4H), 6.93 (d, J=7.8 Hz, 2H), 5.62 (s, 1H), 4.39-4.47 (m, 1H), 4.08 (d, J=11.4 Hz, 2H), 2.45-2.67 (m, 4H), 1.92-2.02 (m, 3H), 1.25-1.35 (m, 2H), 1.10-1.15 (m, 2H). LC/MS (ES, m/z): 700 [M+H]+.
    • Example PH-10 4-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-ylsulfonyl)benzamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00218
  • Into a 8-mL vial, was placed solution of 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoic acid (45 mg, 0.07 mmol, 1.00 equiv) in N,N-dimethylformamide (4 mL), HATU (31 mg, 0.08 mmol, 5.00 equiv), NH4Cl (18 mg, 0.34 mmol, 1.20 equiv) and DIEA (26 mg, 0.20 mmol, 3.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH3CN (50% CH3CN up to 70% in 5 min, up to 100% in 7 min, down to 50% in 9 min); Detector, UV 254 nm to yield 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzamide trifluoroacetic acid as a white solid.
  • 1H NMR (400 MHz, CD3OD) δ: 8.13 (d, J=8.4 Hz, 2H), 7.96 (d, J=8.4 Hz, 2H), 7.78 (s, 1H), 7.64 (d, J=8.8 Hz, 1H), 7.34-7.37 (m, 5H), 7.14-7.16 (m, 4H), 5.88 (s, 1H), 4.88-4.93 (m, 1H), 4.07 (d, J=10.8 Hz, 2H), 2.66-2.72 (m, 2H), 2.44-2.60 (m, 3H), 2.13-2.16 (m, 2H), 1.40-1.42 (m, 2H), 1.26-1.29 (m, 2H). LC/MS (ES, m/z): 659 [M+H]+.
    • Example PH-11 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(3-(trifluoromethyl)phenylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00219
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting 3-(trifluoromethyl)benzene-1-sulfonyl chloride for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (300 MHz, CDCl3) δ: 8.07 (s, 1H), 8.02 (d, J=7.8 Hz, 1H), 7.92 (d, J=7.8 Hz, 1H), 7.75 (t, J=8.1 Hz, 1H), 7.60-7.64 (m, 1H), 7.23-7.29 (m, 5H), 7.01-7.08 (m, 4H), 6.94 (d, J=8.7 Hz, 1H), 5.62 (s, 1H), 4.38-4.48 (m, 1H), 4.10 (d, J=11.7 Hz, 2H), 2.46-2.67 (m, 4H), 1.96-2.04 (m, 2H), 1.89-1.93 (m, 1H), 1.25-1.36 (m, 2H), 1.12-1.18 (m, 2H). LC/MS (ES, m/z): 684 [M+H]+.
    • Example PH-12 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(3-methoxyphenylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00220
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting 3-methoxybenzene-1-sulfonyl chloride for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (400 MHz, CD3OD) δ: 7.76 (s, 1H), 7.64 (d, J=8.8 Hz, 1H), 7.58 (t, J=8.0 Hz, 1H), 7.43 (d, J=8.0 Hz, 1H), 7.27-7.36 (m, 7H), 7.13-7.15 (m, 4H), 5.87 (s, 1H), 4.87-4.94 (m, 1H), 4.04 (d, J=12.4 Hz, 2H), 3.90 (s, 3H), 2.52-2.68 (m, 2H), 2.43-2.47 (m, 3H), 2.11-2.14 (m, 2H), 1.30-1.41 (m, 2H), 1.27-1.29 (m, 2H). LC/MS (ES, m/z): 646 [M+H]+.
    • Example PH-13 3-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)benzamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00221
    • Step 1: Synthesis of 3-(4-[6-(bis (4-chlorophenyl) methyl]-2-cyclopropyl-1H-1, 3-benzodiazol-1-yl piperidine-1-sulfonyl) benzoic acid
  • Into a 8-mL vial, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (150 mg, 0.31 mmol, 1.00 equiv) in tetrahydrofuran (4 mL), triethylamine (65 mg, 0.64 mmol, 2.00 equiv) and 3-(chlorosulfonyl)benzoic acid (70 mg, 0.32 mmol, 1.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum to yield 3-(4-[6-[bis (4-chlorophenyl) methyl]-2-cyclopropyl-1H-1, 3-benzodiazol-1-yl] piperidine-1-sulfonyl) benzoic acid as a white solid. LC/MS (ES, m/z): 661 [M+H]+.
    • Step 2: Synthesis of 3-(4-[6-[bis (4-chlorophenyl) methyl]-2-cyclopropyl-1H-1, 3-benzodiazol-1-yl] piperidine-1-sulfonyl) benzamide trifluoroacetic acid
  • Into a 8-mL vial, was placed a solution of 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoic acid (200 mg, 0.30 mmol, 1.00 equiv) in N,N-dimethylformamide (4 mL), NH4Cl (80 mg, 1.50 mmol, 5.00 equiv), HATU (138 mg, 0.36 mmol, 1.20 equiv) and DIEA (117 mg, 0.91 mmol, 3.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH3CN (40% CH3CN up to 60% in 6 min, up to 100% in 8 min, down to 55% in 10 min); Detector, UV 254 nm to yield 3-(4-[6-[bis (4-chlorophenyl) methyl]-2-cyclopropyl-1H-1, 3-benzodiazol-1-yl] piperidine-1-sulfonyl) benzamide trifluoroacetic acid as a white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 8.36 (s, 1H), 8.21 (d, J=7.8 Hz, 1H), 8.04 (d, J=8.4 Hz, 1H), 7.74-7.79 (m, 2H), 7.63 (d, J=8.4 Hz, 1H), 7.29-7.36 (m, 5H), 7.12-7.15 (m, 4H), 5.87 (s, 1H), 4.87-4.94 (m, 1H), 4.07 (d, J=11.4 Hz, 2H), 2.39-2.73 (m, 5H), 2.11-2.14 (m, 2H), 1.30-1.42 (m, 2H), 1.25-1.29 (m, 2H). LC/MS (ES, m/z): 649 [M+H]+.
    • Example PH-14 3-(4-(6-(bis (4-chlorophenyl) methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl) piperidin-1-ylsulfonyl) phenol 2, 2, 2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00222
    • Step 1: Synthesis of 6-[bis (4-chlorophenyl) methyl]-2-cyclopropyl-1-[1-[(3-methoxybenzene) sulfonyl] piperidin-4-yl]-1H-1, 3-benzodiazole
  • Into a 25-mL round-bottom flask, was placed 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (400 mg, 0.84 mmol, 1.00 equiv), 3-methoxybenzene-1-sulfonyl chloride (190 mg, 0.92 mmol, 1.10 equiv) and a solution of triethylamine (254 mg, 2.51 mmol, 2.99 equiv) in dichloromethane (10 mL). The resulting solution was stirred for 2 h at room temperature. The resulting mixture was concentrated under vacuum to yield 6-[bis (4-chlorophenyl) methyl]-2-cyclopropyl-1-[1-[(3-methoxybenzene) sulfonyl]piperidin-4-yl]-1H-1, 3-benzodiazole as yellow oil. LC/MS (ES, m/z): 647 [M+H]+.
    • Step 2: Synthesis of 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)phenol trifluoroacetic acid
  • Into a 50-mL round-bottom flask, was placed a solution of 6-[bis (4-chlorophenyl) methyl]-2-cyclopropyl-1-[1-[(3-methoxybenzene) sulfonyl] piperidin-4-yl]-1H-1, 3-benzodiazole (200 mg, 0.31 mmol, 1.00 equiv) in dichloromethane (5 ml) and BBr3 (0.29 mL, 10.00 equiv). The resulting solution was stirred for 4 h at room temperature. The pH value of the solution was adjusted to pH 7 with sodium bicarbonate (100%). The resulting solution was extracted with DCM (3×5 mL) and the organic layers combined and concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH3CN (50% CH3CN up to 65% in 6 min, up to 100% in 2 min, down to 50% in 2 min); Detector, UV 254 nm to yield 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)phenol trifluoroacetic acid as a white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 7.79 (s, 1H), 7.65 (d, J=8.4 Hz, 1H), 7.46 (t, J=8.1 Hz, 1H), 7.29-7.37 (m, 6H), 7.24 (t, J=2.1 Hz, 1H), 7.09-7.16 (m, 5H), 5.89 (s, 1H), 4.87-4.93 (m, 1H), 4.02 (d, J=12.3 Hz, 2H), 2.66-2.74 (m, 2H), 2.45-2.60 (m, 3H), 2.12-2.16 (m, 2H), 1.40-1.47 (m, 2H), 1.33-1.36 (m, 2H). LC/MS (ES, m/z): 632 [M+H]+.
    • Example PH-15 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(2-(trifluoromethyl)phenylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00223
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting 2-(trifluoromethyl) benzene-1-sulfonyl chloride for 4-(chlorosulfonyl) benzoic acid in Step 10.
  • 1H NMR (300 MHz, CDCl3) δ: 8.22-8.26 (m, 1H), 7.91-7.94 (m, 1H), 7.73-7.76 (m, 2H), 7.62 (d, J=7.5 Hz, 1H), 7.23-7.28 (m, 5H), 7.03-7.06 (m, 4H), 6.94 (d, J=8.7 Hz, 1H), 5.59 (s, 1H), 4.51-4.61 (m, 1H), 4.02 (d, J=13.2 Hz, 2H), 2.89-2.97 (m, 2H), 2.53-2.58 (m, 2H), 1.93-1.97 (m, 3H), 1.20-1.30 (m, 2H), 1.11-1.18 (m, 2H). LC/MS (ES, m/z): 684 [M+H]+.
    • Example PH-16 6-(bis(4-chlorophenyl methyl)-2-cyclopropyl-1-(1-(2-methoxyphenylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00224
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting 2-methoxybenzene-1-sulfonyl chloride for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (300 MHz, CDCl3) δ: 7.94 (d, J=7.8 Hz, 1H), 7.54-7.66 (m, 2H), 7.23-7.28 (m, 5H), 7.01-7.11 (m, 6H), 6.92 (d, J=8.1 Hz, 1H), 5.60 (s, 1H), 4.45-4.55 (m, 1H), 4.15 (d, J=11.1 Hz, 2H), 3.92 (s, 3H), 2.79-2.86 (m, 2H), 2.47-2.58 (m, 2H), 1.93-1.97 (m, 3H), 1.25-1.35 (m, 2H), 1.14-1.19 (m, 2H). LC/MS (ES, m/z): 646 [M+H]+.
    • Example PH-17 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-ylsulfonyl)phenol 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00225
  • The title compound was prepared according to the procedure as described in Example PH-14 substituting 2-methoxybenzene-1-sulfonyl chloride for 3-methoxybenzene-1-sulfonyl chloride in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 7.76-7.80 (m, 2H), 7.64 (d, J=8.4 Hz, 1H), 7.49-7.52 (m, 1H), 7.32-7.37 (m, 5H), 7.13-7.15 (m, 4H), 7.01-7.04 (m, 2H), 5.86 (s, 1H), 4.90-4.99 (m, 1H), 4.11 (d, J=11.2 Hz, 2H), 2.94-3.01 (m, 2H), 2.50-2.56 (m, 3H), 2.10-2.12 (m, 2H), 1.41-1.43 (m, 2H), 1.29-1.30 (m, 2H). LC/MS (ES, m/z): 632 [M+H]+.
    • Example PH-18 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-ylsulfonyl)benzamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00226
    • Step 1: Synthesis of methyl 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoate
  • Into a 8-mL vial, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (150 mg, 0.31 mmol, 1.00 equiv) in CH3CN (5 ml), potassium carbonate (131 mg, 0.95 mmol, 3.00 equiv) and methyl 2-(chlorosulfonyl)benzoate (89 mg, 0.38 mmol, 1.20 equiv). The resulting solution was stirred overnight at room temperature. The reaction was then quenched by the addition of water (5 mL). The resulting solution was extracted with DCM (3×5 mL) and the organic layers combined and dried over anhydrous sodium sulfate, then concentrated under vacuum to yield methyl 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoate as a white solid. LC/MS (ES, m/z): 674 [M+H]+.
    • Step 2: Synthesis of 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoic acid
  • Into a 50-mL round-bottom flask, was placed a solution of methyl 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoate (150 mg, 0.22 mmol, 1.00 equiv) in methanol/THF (5/1 mL), sodiumol (5 mL, 3N). The resulting solution was stirred overnight at room temperature. The pH value of the solution was adjusted to pH 6 with hydrogen chloride (3 mol/L). The resulting solution was extracted with DCM (3×10 mL) and the organic layers combined, then dried over anhydrous sodium sulfate to yield 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoic acid as colorless oil.
    • Step 3: Synthesis of 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzamide trifluoroacetic acid
  • Into a 8-mL vial, was placed a solution of 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoic acid (150 mg, 0.23 mmol, 1.00 equiv) in N,N-dimethylformamide (4 ml), NH4Cl (60 mg, 1.12 mmol, 5.00 equiv), HATU (104 mg, 0.27 mmol, 1.20 equiv) and DIEA (88 mg, 0.68 mmol, 3.00 equiv). The resulting solution was stirred overnight at room temperature. The product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH3CN (40% CH3CN up to 50% in 6 min, up to 100% in 7 min, down to 40% in 8 min); Detector, UV254 nm to yield 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzamide trifluoroacetic acid as a white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 8.04 (d, J=7.8 Hz, 1H), 7.95 (s, 1H), 7.60-7.76 (m, 4H), 7.33-7.37 (m, 5H), 7.14-7.17 (m, 4H), 5.87 (s, 1H), 5.00-5.08 (m, 1H), 4.04 (d, J=13.5 Hz, 2H), 2.99-3.07 (m, 2H), 2.51-2.63 (m, 3H), 2.06-2.11 (m, 2H), 1.42-1.49 (m, 2H), 1.28-1.33 (m, 2H). LC/MS (ES, m/z): 659 [M+H]+.
    • Example PH-19 4-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-ylsulfonyl)phenol hydrochloride
  • Figure US20190031618A1-20190131-C00227
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting 4-hydroxybenzene-1-sulfonyl chloride for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (400 MHz, CD3OD) δ: 7.81 (s, 1H), 7.65-7.72 (m, 3H), 7.34-7.36 (m, 5H), 7.14-7.16 (m, 4H), 7.00 (d, J=8.8 Hz, 2H), 5.87 (s, 1H), 4.87-4.95 (m, 1H), 4.00 (d, J=12.0 Hz, 2H), 2.47-2.68 (m, 5H), 2.11-2.14 (m, 2H), 1.42-1.47 (m, 2H), 1.30-1.34 (m, 2H). LC/MS (ES, m/z): 632 [M+H]+.
    • Example PH-20 2-(4-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-3aH-benzo[d]imidazol-1(7aH)-yl)piperidin-1-ylsulfonyl)phenoxy)acetamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00228
    • Step 1: Synthesis of ethyl 2-[4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)phenoxy]acetate
  • Into a 50-mL round-bottom flask, was placed a solution of 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)phenol (266 mg, 0.42 mmol, 1.00 equiv) in N,N-dimethylformamide (10 mL), ethyl 2-bromoacetate (105 mg, 0.63 mmol, 1.50 equiv) and potassium carbonate (174 mg, 1.26 mmol, 3.00 equiv). The resulting solution was stirred overnight at room temperature. The reaction was then quenched by the addition of water (10 mL). The resulting solution was extracted with DCM (3×10 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum to yield ethyl 2-[4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)phenoxy]acetate as a white solid.
    • Step 2: Synthesis of 2-[4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)phenoxy]acetamide; trifluoroacetic acid
  • Into a 30-mL sealed tube, was placed a solution of ethyl 2-[4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)phenoxy]acetate (100 mg, 0.14 mmol, 1.00 equiv) in methanol/NH3 (20 mL). The resulting solution was stirred for 1 overnight at room temperature. The resulting mixture was concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH3CN (30% CH3CN up to 55% in 10 min, up to 100% in 12 min, down to 50% in 14 min; Detector, UV 254 nm to yield 2-[4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)phenoxy]acetamide; trifluoroacetic acid as an off-white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 7.81-7.84 (m, 3H), 7.65 (d, J=8.7 Hz, 1H), 7.34-7.37 (m, 5H), 7.23-7.26 (m, 2H), 7.13-7.16 (m, 4H), 5.88 (s, 1H), 4.81-4.91 (m, 1H), 3.99-4.12 (m, 2H), 2.50-2.68 (m, 5H), 2.11-2.16 (m, 2H), 1.41-1.47 (m, 2H), 1.30-1.38 (m, 2H). LC/MS (ES, m/z): 689 [M+H]+.
    • Example PH-21 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)acetic acid hydrochloride
  • Figure US20190031618A1-20190131-C00229
  • The title compound was prepared according to the procedure as described in Example PH-23 substituting cyclopropanecarbonyl chloride for propanoyl chloride in Step 4.
  • 1H NMR (400 MHz, DMSO-d6) δ: 7.46 (d, J=8.4 Hz, 1H), 7.38-7.40 (m, 4H), 7.30 (s, 1H), 7.16-7.19 (m, 4H), 6.88 (d, J=8.4 Hz, 1H), 4.93-5.03 (m, 1H), 3.93 (d, J=12.8 Hz, 2H), 3.45-3.52 (m, 2H), 2.31-2.34 (m, 1H), 2.01-2.12 (m, 4H), 1.01-1.07 (m, 4H). LC/MS (ES, m/z): 652 [M+H]+.
    • Example PH-22 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole hydrochloride
  • Figure US20190031618A1-20190131-C00230
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting trifluoromethanesulfonic anhydride for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (300 MHz, DMSO-d6) δ: 7.69-7.80 (m, 2H), 7.39-7.42 (m, 4H), 7.24 (d, J=8.7 Hz, 1H), 7.12-7.15 (m, 4H), 5.96 (s, 1H), 5.14-5.22 (m, 1H), 4.01 (d, J=12.6 Hz, 2H), 3.70-3.77 (m, 2H), 2.57-2.66 (m, 1H), 2.18-2.40 (m, 4H), 1.34-1.42 (m, 4H). LC/MS (ES, m/z): 608 [M+H]+.
    • Example PH-23 6-(bis(4-chlorophenyl)methyl)-2-ethyl-1-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole hydrochloride
  • Figure US20190031618A1-20190131-C00231
    • Step 1: Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate
  • Into a 1000-mL 3-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of methyl 2,2-bis(4-chlorophenyl)acetate (50 g, 169.40 mmol, 1.00 equiv) in tetrahydrofuran (150 mL). To the mixture was then added t-BuOK (190 mL, 1M, 1.10 equiv) dropwise with stirring at 0° C. in 20 min. The resulting solution was stirred for 30 min at 0° C. To the resulting mixture was added a solution of 2,4-difluoro-1-nitrobenzene (28 g, 176.00 mmol, 1.05 equiv) in tetrahydrofuran (150 mL) dropwise with stirring. The resulting solution was stirred overnight at room temperature. The mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:10) to yield methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate as yellow oil.
    • Step 2: Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)acetate
  • Into a 1000-mL round-bottom flask, was placed a solution of methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (70 g, 161.20 mmol, 1.00 equiv) in CH3CN (300 mL), DIEA (104 g, 804.70 mmol, 3.00 equiv) and 1-(trifluoromethane)sulfonylpiperidin-4-amine hydrochloride (52 g, 193.54 mmol, 1.20 equiv). The resulting solution was stirred overnight at 85° C. The reaction was then quenched by the addition of water (200 mL). The resulting solution was extracted with ethyl acetate (3×200 mL) and the organic layers combined, then dried over anhydrous sodium sulfate to yield methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)acetate as yellow oil.
    • Step 3: Synthesis of methyl 2-(4-amino-3-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)-2,2-bis(4-chlorophenyl)acetate
  • Into a 500-mL round-bottom flask, was placed a solution of methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)acetate (50 g, 77.34 mmol, 1.00 equiv) in methanol/THF (100/100 ml) and Raney Ni (2 g). To the mixture was then introduced hydrogen. The resulting solution was stirred overnight at room temperature to yield methyl 2-(4-amino-3-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)-2,2-bis(4-chlorophenyl)acetate as a red solid.
    • Step 4: Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-(4-propanamido-3-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)acetate
  • Into a 500-mL round-bottom flask, was placed a solution of methyl 2-(4-amino-3-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)-2,2-bis(4-chlorophenyl)acetate (50 g, 81.11 mmol, 1.00 equiv) in dichloromethane (250 mL), triethylamine (24.6 g, 243.11 mmol, 3.00 equiv) and propanoyl chloride (7.5 g, 81.06 mmol, 1.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum to yield methyl 2,2-bis(4-chlorophenyl)-2-(4-propanamido-3-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)acetate as brown oil. LC/MS (ES, m/z): 672 [M+H]+.
    • Step 5: Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-[2-ethyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazol-6-yl]acetate
  • Into a 500-mL round-bottom flask, was placed a solution of methyl 2,2-bis(4-chlorophenyl)-2-(4-propanamido-3-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)acetate (54 g, 40.15 mmol, 1.00 equiv, 50%) in acetic acid (200 mL). The resulting solution was stirred for 24 hrs at reflux. The resulting mixture was concentrated under vacuum to yield methyl 2,2-bis(4-chlorophenyl)-2-[2-ethyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazol-6-yl]acetate as brown oil. LC/MS (ES, m/z): 654 [M+H]+.
    • Step 6: Synthesis of 2,2-bis(4-chlorophenyl)-2-[2-ethyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazol-6-yl]acetic acid
  • Into a 1000-mL round-bottom flask, was placed a solution of methyl 2,2-bis(4-chlorophenyl)-2-[2-ethyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazol-6-yl]acetate (32 g, 24.45 mmol, 1.00 equiv, 50%) in tetrahydrofuran/MeOH (150/100 mL) and sodium hydroxide (250 mL). The resulting solution was stirred overnight at 50° C. The resulting solution was extracted with ethyl acetate (3×250 mL) and the organic layers combined. The pH value of the aqueous layers was adjusted to pH 2 with hydrogen chloride (3 mol/L). The resulting solution was extracted with ethyl acetate (100 mL) acetate and the organic layers combined to yield 2,2-bis(4-chlorophenyl)-2-[2-ethyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazol-6-yl]acetic acid as a white solid. LC/MS (ES, m/z): 640 [M+H]+.
    • Step 7: Synthesis of 6-[bis(4-chlorophenyl)methyl]-2-ethyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazole hydrochloride
  • Into a 500-mL round-bottom flask, was placed 2,2-bis(4-chlorophenyl)-2-[2-ethyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazol-6-yl]acetic acid (30 g, 46.84 mmol, 1.00 equiv), toluene (300 mL) and DBU (42.8 g, 281.14 mmol, 6.00 equiv). The resulting solution was stirred for 3 h at 90° C. The resulting mixture was concentrated under vacuum. The resulting solution was extracted with ethyl acetate (3×300 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column with EA:PE (1:1). The residue was dissolved in diethyl ether/MeOH (100 mL) and reacted with hydrochloric acid to yield the corresponding hydrochloride salt, which precipitated from the mixture. The solids were collected by filtration. The product was re-crystallized from ethyl ether/ethanol in the ratio of 1:10 to yield 6-[bis(4-chlorophenyl)methyl]-2-ethyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazole hydrochloride as an off-white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 7.76 (d, J=8.7 Hz, 1H), 7.64 (s, 1H), 7.42 (d, J=8.4 Hz, 1H), 7.34-7.37 (m, 4H), 7.13-7.16 (m, 4H), 5.91 (s, 1H), 4.94-4.99 (m, 1H), 4.12 (d, J=13.2 Hz, 2H), 3.36-3.52 (m, 3H), 2.33-2.45 (m, 2H), 2.18-2.22 (m, 2H), 1.54 (t, J=7.5 Hz, 3H). LC/MS (ES, m/z): 596 [M+H]+.
    • Example PH-24 2,2-bis(4-chlorophenyl)-2-(2-ethyl-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)acetic acid
  • Figure US20190031618A1-20190131-C00232
  • The title compound was prepared according to the procedure as describe din Example PH-23, Step 6.
  • 1H NMR (300 MHz, DMSO-d6) δ: 7.52 (d, J=8.7 Hz, 1H), 7.37-7.48 (m, 4H), 7.31 (d, J=9.0 Hz, 1H), 7.11-7.18 (m, 4H), 6.91 (d, J=8.4 Hz, 1H), 4.61-4.71 (m, 1H), 3.90 (d, J=12.3 Hz, 2H), 3.43-3.47 (m, 2H), 2.91-2.98 (m, 2H), 1.95-2.10 (m, 4H), 1.31 (t, J=7.5 Hz, 3H). LC/MS (ES, m/z): 640 [M+H]+.
    • Example PH-25 4-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carbonyl)benzamide
  • Figure US20190031618A1-20190131-C00233
  • The title compound was prepared according to the procedure as described in Example PH-18 substituting methyl 4-(chlorocarbonyl)benzoate for methyl 2-(chlorosulfonyl)benzoate in Step 1.
  • 1H NMR (300 MHz, DMSO-d6) δ: 8.04-8.07 (m, 1H), 7.95 (d, J=8.1 Hz, 2H), 7.72-7.80 (m, 1H), 7.61-7.64 (m, 1H), 7.40-7.49 (m, 7H), 7.14-7.24 (m, 5H), 5.95 (s, 1H), 4.73-4.76 (m, 1H), 4.62-4.70 (m, 1H), 3.40-3.60 (m, 8H), 1.20-1.30 (m, 4H). LC/MS (ES, m/z): 623 [M+H]+.
    • Example PH-26 1-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)-2-hydroxyethanone 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00234
    • Step 1: Synthesis of 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)-2-oxoethyl acetate
  • Into a 25-mL round-bottom flask, was placed 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(piperidin-4-yl)-1H-benzo[d]imidazole (100 mg, 0.21 mmol, 1.00 equiv), 2-chloro-2-oxoethyl acetate (34.5 mg, 0.23 mmol, 1.09 equiv) and a solution of triethylamine (63 mg, 0.62 mmol, 2.97 equiv) in dichloromethane (5 mL). The resulting solution was stirred for 3 h at room temperature. The resulting mixture was concentrated under vacuum to yield 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)-2-oxoethyl acetate as yellow oil. LC/MS (ES, m/z): 576.5 [M+H]+.
    • Step 2: Synthesis of 1-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)-2-hydroxyethanone
  • Into a 25-mL round-bottom flask, was placed 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-2-oxoethyl acetate (110 mg, 0.19 mmol, 1.00 equiv), a solution of LiOH*H2O (48 mg, 1.14 mmol, 6.00 equiv) in tetrahydrofuran/H2O (5/3 mL). The resulting solution was stirred for 3 h at room temperature. The resulting solution was extracted with ethyl acetate (3×10 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18, 5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH3CN (20% CH3CN up to 65% in 8 min); Detector, 254 nm to yield 1-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)-2-hydroxyethanone as trifluoroacetic acid salt as an off-white solid.
  • 1H NMR (300 MHz, DMSO-d6) δ: 7.78 (s, 1H), 7.62 (d, J=8.4 Hz, 1H), 7.37-7.40 (m, 4H), 7.09-7.15 (m, 5H), 5.90 (m, 1H), 5.01-5.06 (m, 1H), 4.57-4.61 (m, 1H), 4.16 (d, J=6.3 Hz, 2H), 3.87-3.99 (m, 2H), 3.16-3.20 (m, 1H), 2.79-2.87 (m, 1H), 1.95-2.30 (m, 5H), 1.20-1.35 (m, 4H). LC/MS (ES, m/z): 534 [M+H]+.
    • Example PH-27 1-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)-3-hydroxypropan-1-one 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00235
    • Step 1: Synthesis of methyl 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-3-oxopropanoate
  • Into a 8-mL vial, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (150 mg, 0.31 mmol, 1.00 equiv) in dichloromethane (4 mL), triethylamine (96 mg, 0.95 mmol, 3.00 equiv) and methyl 3-chloro-3-oxopropanoate (52 mg, 0.38 mmol, 1.20 equiv). The resulting solution was stirred overnight at room temperature. The reaction was then quenched by the addition of water (4 mL). The resulting solution was extracted with DCM (3×4 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum to yield methyl 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-3-oxopropanoate as colorless oil. LC/MS (ES, m/z): 576.5 [M+H]+.
    • Step 2: Synthesis of 1-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-3-hydroxypropan-1-one trifluoroacetic acid
  • Into a 25-mL round-bottom flask, was placed a solution of methyl 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-3-oxopropanoate (200 mg, 0.35 mmol, 1.00 equiv) in tetrahydrofuran (4 ml), LiBH4 (38 mg, 5.00 equiv) and water (0.04 mL). The resulting solution was stirred for 2 h at room temperature. The resulting mixture was concentrated under vacuum. The reaction was then quenched by the addition of water (10 mL). The resulting solution was extracted with DCM (3×10 mL) and the organic layers combined, then concentrated under vacuum to yield 1-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-3-hydroxypropan-1-one trifluoroacetic acid as a light yellow semi-solid.
  • 1H NMR (400 MHz, CD3OD) δ: 7.71 (s, 1H), 7.66 (d, J=6.3 Hz, 1H), 7.33-7.36 (m, 5H), 7.12-7.14 (m, 4H), 5.87 (s, 1H), 5.15-5.25 (m, 1H), 4.82-4.87 (m, 1H), 4.27-4.30 (m, 1H), 3.92 (t, J=6.0 Hz, 2H), 3.33-3.41 (m, 1H), 2.83-2.93 (m, 1H), 2.59-2.73 (m, 3H), 2.12-2.44 (m, 4H), 1.47-1.52 (m, 2H), 1.32-1.36 (m, 2H).
  • LC/MS (ES, m/z): 548 [M+H]+.
    • Example PH-28 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-chlorobenzoic acid; trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00236
    • Step 1: Synthesis of methyl 2-chloro-4-(chlorosulfonyl)benzoate
  • Into a 100-mL round-bottom flask, was placed a solution of methyl 4-amino-2-chlorobenzoate (1.86 g, 10.02 mmol, 1.00 equiv) in hydrogen chloride(aq) (20 mL). To the mixture was then added a solution of NaNO2 (759 mg, 11.00 mmol, 1.10 equiv) in water (3 mL) dropwise with stirring at 0° C. To the resulting mixture was added a solution of CuCl2 (1.47 g, 10.97 mmol, 1.09 equiv) in SO02/HOAc (8.3 mL) dropwise with stirring at 0° C. The resulting solution was stirred for 30 min at 0° C. The resulting solution was allowed to react, with stirring, for an additional 3 h at room temperature. The resulting solution was diluted with ethyl acetate (100 mL). The resulting mixture was washed with sodium chloride (aq) (3×10 mL). The mixture was dried over anhydrous sodium sulfate and concentrated under vacuum to yield methyl 2-chloro-4-(chlorosulfonyl)benzoate as yellow oil. LC/MS (ES, m/z): 269 [M+H]+.
    • Step 2: Synthesis of methyl 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-chlorobenzoate
  • Into a 50-mL round-bottom flask, was placed methyl 2-chloro-4-(chlorosulfonyl)benzoate (248 mg, 0.92 mmol, 1.10 equiv), 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (400 mg, 0.84 mmol, 1.00 equiv) and a solution of triethylamine (254 mg, 2.51 mmol, 2.99 equiv) in dichloromethane (10 mL). The resulting solution was stirred for 2 h at room temperature. The resulting mixture was concentrated under vacuum to yield methyl 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-chlorobenzoate as yellow oil. LC/MS (ES, m/z): 709 [M+H]+.
    • Step 3: Synthesis of 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-chlorobenzoic acid in a mixture with the corresponding trifluoroacetic acid
  • Into a 25-mL round-bottom flask, was placed methyl 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-chlorobenzoate (230 mg, 0.32 mmol, 1.00 equiv) and a solution of LiOH*H2O (82 mg, 1.95 mmol, 6.02 equiv) in tetrahydrofuran/H2O (5/3 mL). The resulting solution was stirred for 6 h at room temperature. The pH value of the solution was adjusted to pH 3 with hydrogen chloride (1 mol/L). The resulting solution was extracted with ethyl acetate (3×10 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions: Column, Sunfire prep C18, 5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH3CN (20% CH3CN up to 65% in 10 min); Detector, 254 nm to yield 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-chlorobenzoic acid trifluoroacetic acid as a white solid. LC/MS (ES, m/z): 695 [M+H]+.
    • Alternate Step 2: Synthesis of 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-chlorobenzoic acid hydrochloride
  • Into a 50-mL round-bottom flask, was placed methyl 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-chlorobenzoate (400 mg, 0.56 mmol, 1.00 equiv) and a solution of LiOH*H2O (118 mg, 2.81 mmol, 4.99 equiv) in tetrahydrofuran/H2O (5/5 mL). The resulting solution was stirred for 5 h at room temperature. The resulting mixture was concentrated under vacuum. The pH value of the solution was adjusted to pH 3 with hydrogen chloride (1 mol/L). The resulting solution was extracted with ethyl acetate (3×50 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18, 5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH3CN (22% CH3CN up to 55% in 8 min); Detector, UV 254 nm. 50 mL product was obtained. The CH3CN was evaporated and HCl (conc., 1 mL) was added. The resulting mixture was lyophilized to yield 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-chlorobenzoic acid hydrochloride as an off-white solid.
  • 1H NMR (300 MHz, DMSO-d6) δ: 8.03 (d, J=8.1 Hz, 1H), 7.92 (d, J=1.5 Hz, 1H), 7.85 (dd, J1=1.5 Hz, J2=8.1 Hz, 1H), 7.72 (s, 1H), 7.51 (d, J=8.1 Hz, 1H), 7.36-7.39 (m, 4H), 7.11-7.14 (m, 4H), 6.97 (d, J=8.1 Hz, 1H), 5.88 (m, 1H), 4.74-4.84 (m, 1H), 3.89 (d, J=10.5 Hz, 2H), 2.50-2.65 (m, 2H), 2.26-2.43 (m, 3H), 1.98-2.07 (m, 2H), 1.05-1.15 (m, 4H). LC/MS (ES, m/z): 694 [M+H]+.
    • Example PH-29 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-methoxybenzamide; trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00237
  • The title compound was prepared according to the procedure as described in Example PH-10 substituting 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)-2-chlorobenzoic acid for 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)benzoic acid.
  • 1H NMR (300 MHz, DMSO-d6) δ: 8.07 (s, 1H), 7.72-7.87 (m, 5H), 7.57 (d, J=8.4 Hz, 1H), 7.37-7.40 (m, 4H), 7.12-7.14 (m, 4H), 7.05-7.08 (m, 1H), 5.93 (s, 1H), 4.80-4.84 (m, 1H), 3.89-4.04 (m, 2H), 2.55-2.72 (m, 2H), 2.38-2.49 (m, 3H), 2.03-2.07 (m, 2H), 1.15-1.23 (m, 4H). LC/MS (ES, m/z): 693 [M+H]+.
    • Example PH-30 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-methoxybenzoic acid; trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00238
  • The title compound was prepared according to the procedure as described in Example PH-28 substituting 4-amino-2-methoxybenzoate for methyl 4-amino-2-chlorobenzoate in Step 1.
  • 1H NMR (300 MHz, DMSO-d6) δ: 7.80-7.86 (m, 2H), 7.55 (d, J=8.4 Hz, 1H), 7.37-7.44 (m, 6H), 7.11-7.14 (m, 4H), 7.01-7.04 (m, 1H), 5.92 (s, 1H), 4.77-4.81 (m, 1H), 3.93 (s, 3H), 3.78-3.88 (m, 2H), 2.55-2.72 (m, 2H), 2.36-2.49 (m, 3H), 2.00-2.07 (m, 2H), 1.12-1.20 (m, 4H). LC/MS (ES, m/z): 690 [M+H]+.
    • Example PH-31 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-methoxybenzamide; trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00239
  • The title compound was prepared according to the procedure as described in Example PH-10 substituting 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)-2-methoxybenzoic acid for 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)benzoic acid.
  • 1H NMR (300 MHz, DMSO-d6) δ: 7.90-7.95 (m, 2H), 7.75 (d, J=5.7 Hz, 1H), 7.59 (d, J=8.4 Hz, 1H), 7.37-7.46 (m, 6H), 7.11-7.14 (m, 4H), 5.95 (s, 1H), 4.79-4.89 (m, 1H), 3.98 (s, 3H), 3.89-3.93 (m, 2H), 2.54-2.72 (m, 2H), 2.42-2.49 (m, 3H), 2.03-2.07 (m, 2H), 1.18-1.25 (m, 4H). LC/MS (ES, m/z): 689 [M+H]+.
    • Example PH-32 5-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)pyridine-2-carboxylic acid; trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00240
  • The title compound was prepared according to the procedure as described in Example PH-28 substituting methyl 5-(chlorosulfonyl)pyridine-2-carboxylate for methyl 4-amino-2-chlorobenzoate in Step 2.
  • 1H NMR (300 MHz, DMSO-d6) δ: 9.09 (s, 1H), 8.41 (d, J=9.3 Hz, 1H), 8.30 (d, J=8.4 Hz, 1H), 7.86 (s, 1H), 7.59 (d, J=8.4 Hz, 1H), 7.38-7.41 (m, 4H), 7.08-7.15 (m, 5H), 5.94 (s, 1H), 4.80-4.84 (m, 1H), 3.91-4.05 (m, 3H), 2.61-2.73 (m, 2H), 2.39-2.50 (m, 2H), 2.04-2.08 (m, 2H), 1.13-1.23 (m, 4H). LC/MS (ES, m/z): 661 [M+H]+.
    • Example PH-33 5-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)pyridine-2-carboxamide trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00241
  • The title compound was prepared according to the procedure as described in Example PH-10 substituting 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)picolinic acid for 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)benzoic acid.
  • 1H NMR (300 MHz, DMSO-d6) δ: 8.99 (s, 1H), 8.30-8.43 (m, 3H), 7.89-7.95 (m, 2H), 7.60 (d, J=9.0 Hz, 1H), 7.38-7.41 (m, 4H), 7.12-7.15 (m, 5H), 5.95 (s, 1H), 4.80-4.90 (m, 1H), 3.91-3.95 (m, 3H), 2.59-2.73 (m, 2H), 2.40-2.44 (m, 2H), 2.05-2.08 (m, 2H), 1.15-1.25 (m, 4H). LC/MS (ES, m/z): 660 [M+H]+
    • Example PH-34 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)benzoic acid; trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00242
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting 3-(chlorosulfonyl)benzoic acid for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (300 MHz, CD3OD) δ: 8.32 (d, J=1.5 Hz, 1H), 8.23 (d, J=7.8 Hz, 1H), 7.97 (d, J=8.1 Hz, 1H), 7.65-7.70 (m, 2H), 7.53 (d, J=8.4 Hz, 1H), 7.21-7.25 (m, 5H), 6.98-7.04 (m, 4H), 5.76 (s, 1H), 4.76-4.84 (m, 1H), 3.95 (d, J=11.4 Hz, 2H), 2.31-2.61 (m, 5H), 2.00-2.04 (m, 2H), 1.14-1.33 (m, 4H). LC/MS (ES, m/z): 660 [M+H]+.
    • Example PH-35 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-fluorobenzoic acid hydrochloride
  • Figure US20190031618A1-20190131-C00243
  • The title compound was prepared according to the procedure as described in Example PH-28 substituting methyl 4-(chlorosulfonyl)-2-fluorobenzoate for methyl 4-amino-2-chlorobenzoate in Step 2.
  • 1H NMR (300 MHz, CD3OD) δ: 8.12-8.18 (m, 1H), 7.60-7.74 (m, 4H), 7.29-7.33 (m, 5H), 7.08-7.11 (m, 4H), 5.84 (s, 1H), 4.82-4.91 (m, 1H), 4.22 (d, J=12.0 Hz, 2H), 2.65-2.73 (m, 2H), 2.46-2.56 (m, 3H), 2.10-2.14 (m, 2H), 1.26-1.43 (m, 4H). LC/MS (ES, m/z): 678 [M+H]+.
    • Example PH-36 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-fluorobenzamide hydrochloride
  • Figure US20190031618A1-20190131-C00244
  • The title compound was prepared according to the procedure as described in Example PH-10 substituting 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)-2-fluorobenzoic acid for 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)benzoic acid.
  • 1H NMR (300 MHz, CD3OD) δ: 7.96-8.01 (m, 1H), 7.67-7.73 (m, 3H), 7.58 (d, J=8.4 Hz, 1H), 7.24-7.32 (m, 5H), 7.08-7.11 (m, 4H), 5.82 (s, 1H), 4.82-4.90 (m, 1H), 4.01 (d, J=12.3 Hz, 2H), 2.36-2.71 (m, 5H), 2.00-2.11 (m, 2H), 1.31-1.36 (m, 2H), 1.21-1.25 (m, 2H). LC/MS (ES, m/z): 677 [M+H]+.
    • Example PH-37 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-methylbenzoic acid; trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00245
  • The title compound was prepared according to the procedure as described in Example PH-1 substituting 4-(chlorosulfonyl)-2-methylbenzoic acid for 4-(chlorosulfonyl)benzoic acid in Step 10.
  • 1H NMR (300 MHz, CD3OD) δ: 8.11 (d, J=7.5 Hz, 1H), 7.73-7.76 (m, 3H), 7.63 (d, J=8.4 Hz, 1H), 7.33-7.36 (m, 5H), 7.12-7.15 (m, 4H), 5.87 (s, 1H), 4.05 (d, J=10.8 Hz, 2H), 2.43-2.71 (m, 9H), 2.11-2.14 (m, 2H), 1.32-1.41 (m, 2H), 1.26-1.28 (m, 2H). LC/MS (ES, m/z): 674 [M+H]+.
    • Example PH-38 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-N-methylbenzamide hydrochloride
  • Figure US20190031618A1-20190131-C00246
  • The title compound was prepared according to the procedure as described in Example PH-10 substituting CH3NH2*HCl for ammonium chloride in Step 1.
  • 1H NMR (300 MHz, CD3OD) δ: 8.25 (t, J=1.8 Hz, 1H), 8.10 (t, J=1.5 Hz, 1H), 7.96-8.08 (m, 1H), 7.72-7.74 (m, 2H), 7.58-7.69 (m, 1H), 7.29-7.32 (m, 5H), 7.08-7.11 (m, 4H), 5.83 (s, 1H), 4.82-4.87 (m, 1H), 4.02 (d, J=12.6 Hz, 2H), 2.92 (s, 3H), 2.42-2.69 (m, 5H), 2.08-2.11 (m, 2H), 1.34-1.39 (m, 2H), 1.23-1.27 (m, 2H). LC/MS (ES, m/z): 673 [M+H]+.
    • Example PH-39 3-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-)piperidin-1-ylsulfonyl)-N-(2-hydroxyethyl)benzamide; trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00247
  • The title compound was prepared according to the procedure as described in Example PH-10 substituting 2-aminoethan-1-ol for ammonium chloride in Step 1.
  • 1H NMR (300 MHz, CD3OD) δ: 8.33 (s, 1H), 8.18 (d, J=6.0 Hz, 1H), 8.03 (d, J=5.7 Hz, 1H), 7.75-7.79 (m, 2H), 7.64 (d, J=6.0 Hz, 1H), 7.34-7.37 (m, 5H), 7.13-7.16 (m, 4H), 5.88 (s, 1H), 4.86-4.91 (m, 1H), 4.08 (d, J=9.0 Hz, 2H), 3.75 (t, J=4.2 Hz, 2H), 3.56 (t, J=4.2 Hz, 2H), 2.67-2.73 (m, 2H), 2.45-2.65 (m, 3H), 2.13-2.16 (m, 2H), 1.28-1.42 (m, 5H). LC/MS (ES, m/z): 703 [M+H]+.
    • Example PH-40 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-N-(3-hydroxypropyl)benzamide hydrochloride
  • Figure US20190031618A1-20190131-C00248
  • The title compound was prepared according to the procedure as described in Example PH-10 substituting 3-aminoethan-1-ol for ammonium chloride in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 8.30 (s, 1H), 8.15 (d, J=7.2 Hz, 1H), 8.03 (d, J=7.6 Hz, 1H), 7.75-7.80 (m, 2H), 7.66 (d, J=8.4 Hz, 1H), 7.34-7.36 (m, 5H), 7.13-7.16 (m, 4H), 5.89 (s, 1H), 4.82-4.92 (m, 1H), 4.07 (d, J=11.6 Hz, 2H), 3.68 (t, J=6.0 Hz, 2H), 3.53 (t, J=6.0 Hz, 2H), 2.68-2.74 (m, 2H), 2.52-2.57 (m, 3H), 2.14-−2.17 (m, 2H), 1.87 (t, J=6.4 Hz, 2H), 1.42-1.44 (m, 2H), 1.31-1.40 (m, 2H).
  • LC/MS (ES, m/z): 717 [M+H]+.
    • Example PH-41 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl-2-(trifluoromethyl)benzoic acid hydrochloride
  • Figure US20190031618A1-20190131-C00249
  • The title compound was prepared according to the procedure as described in Example PH-28 substituting 4-amino-2-(trifluoromethyl)benzoic acid for 4-amino-2-chlorobenzoate in Step 1.
  • 1H NMR (300 MHz, DMSO-d6) δ: 8.48-8.49 (br.m, 1H), 8.17 (d, J=8.7 Hz, 1H), 8.04-8.09 (m, 2H), 7.77 (br.s, 1H), 7.52 (d, J=8.7 Hz, 1H), 7.33-7.36 (m, 4H), 6.99-7.18 (m, 5H), 5.89 (s, 1H), 4.76-4.80 (m, 1H), 3.89 (d, J=10.5 Hz, 2H), 2.56-2.69 (m, 2H), 2.34-2.45 (m, 3H), 1.99-2.03 (m, 2H), 1.09-1.23 (m, 4H). LC/MS (ES, m/z): 728 [M+H]+.
    • Example PH-42 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)-2-(trifluoromethyl)benzamide hydrochloride
  • Figure US20190031618A1-20190131-C00250
  • The title compound was prepared according to the procedure as described in Example PH-10 substituting 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)-2-(trifluoromethyl)benzoic acid for 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)benzoic acid.
  • 1H NMR (300 MHz, CD3OD) δ: 8.10-8.13 (m, 2H), 7.82 (d, J=8.1 Hz, 1H), 7.74 (s, 1H), 7.60 (d, J=8.4 Hz, 1H), 7.28-7.33 (m, 5H), 7.08-7.11 (m, 4H), 5.84 (s, 1H), 4.82-4.89 (m, 1H), 4.03 (d, J=11.4 Hz, 2H), 2.41-2.70 (m, 5H), 2.09-2.14 (m, 2H), 1.26-1.40 (m, 4H). LC/MS (ES, m/z): 727 [M+H]+.
    • Example PH-43 methyl 3-[[3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)phenyl]formamido]propanoate: trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00251
  • The title compound was prepared according to the procedure as described in Example PH-13 substituting methyl 3-aminopropanoate hydrochloride for ammonium chloride in Step 2.
  • 1H NMR (300 MHz, CD3OD) δ: 8.29 (s, 1H), 8.11-8.15 (m, 1H), 8.01-8.04 (m, 1H), 7.73-7.79 (m, 2H), 7.64 (d, J=8.7 Hz, 1H), 7.31-7.37 (m, 5H), 7.12-7.16 (m, 4H), 5.87 (s, 1H), 4.85-4.91 (m, 1H), 4.07 (d, J=11.7 Hz, 2H), 3.66-3.71 (m, 5H), 2.66-2.72 (m, 4H), 2.46-2.56 (m, 3H), 2.12-2.15 (m, 2H), 1.38-1.42 (m, 2H), 1.26-1.30 (m, 2H). LC/MS (ES, m/z): 745 [M+H]+.
    • Example PH-44 Methyl 3-[[5-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)pyridin-2-yl]formamido]propanoate: trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00252
  • The title compound was prepared according to the procedure as described in Example PH-18 substituting methyl 5-(chlorosulfonyl)pyridine-2-carboxylate for methyl 2-(chlorosulfonyl)benzoate in Step 1, and substituting methyl 3-aminopropanoate hydrochloride for ammonium chloride in Step 3.
  • 1H NMR (300 MHz, CD3OD) δ: 9.01 (d, J=1.5 Hz, 1H), 8.28-8.39 (m, 2H), 7.68 (s, 1H), 7.58 (d, J=8.7 Hz, 1H), 7.26-7.32 (m, 5H), 7.08-7.11 (m, 4H), 5.82 (s, 1H), 4.83-4.90 (m, 1H), 4.04 (d, J=11.4 Hz, 2H), 3.66-3.72 (m, 5H), 2.63-2.73 (m, 4H), 2.36-2.56 (m, 3H), 2.08-2.12 (m, 2H), 1.31-1.35 (m, 2H), 1.23-1.35 (m, 2H). LC/MS: (m/z) 746 [M+H]+.
    • Example PH-45 5-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)furan-2-carboxylic acid trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00253
  • The title compound was prepared according to the procedure as described in Example PH-13 substituting 5-(chlorosulfonyl)furan-2-carboxylic acid for 3-(chlorosulfonyl)benzoic acid in Step 1.
  • 1H NMR (300 MHz, CD3OD) δ: 7.76 (s, 1H), 7.65 (d, J=8.7 Hz, 1H), 7.33-7.36 (m, 6H), 7.25 (d, J=3.6 Hz, 1H), 7.12-7.15 (m, 4H), 5.88 (s, 1H), 4.97-5.07 (m, 1H), 4.11 (d, J=12.6 Hz, 2H), 2.98-3.06 (m, 2H), 2.49-2.56 (m, 3H), 2.17-2.21 (m, 2H), 1.41-1.45 (m, 2H), 1.30-1.34 (m, 2H). LC/MS (ES, m/z): 650 [M+H]+.
    • Example PH-46 5-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-sulfonyl)furan-2-carboxamide; trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00254
  • The title compound was prepared according to the procedure as described in Example PH-10 substituting 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)furan-2-carboxylic acid for 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)benzoic acid. 1H NMR (300 MHz, CD3OD) δ: 7.76 (s, 1H), 7.65 (d, J=8.4 Hz, 1H), 7.21-7.40 (m, 7H), 7.12-7.20 (m, 4H), 5.88 (s, 1H), 4.95-5.05 (m, 1H), 4.12 (d, J=11.4 Hz, 2H), 2.94-3.04 (m, 2H), 2.42-2.58 (m, 3H), 2.16-2.19 (m, 2H), 1.21-1.49 (m, 4H). LC/MS (ES, m/z): 649 [M+H]+.
    • Example PH-47 3-(4-(6-(bis(4-chlorophenyl methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)benzamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00255
    • Step 1: Synthesis of methyl 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)benzoate
  • Into a 100-mL 3-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (300 mg, 0.63 mmol, 1.00 equiv) in toluene (10 mL), methyl 3-bromobenzoate (162 mg, 0.75 mmol, 1.20 equiv), Pd2(dba)3 (90 mg, 0.10 mmol, 0.30 equiv), XPhos (58 mg, 0.10 equiv) and Cs2CO3 (411 mg, 1.26 mmol, 2.00 equiv). The resulting solution was stirred overnight at 95° C. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:1) to yield methyl 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)benzoate as yellow oil. LC/MS (ES, m/z): 610 [M+H]+.
    • Step 2: Synthesis of 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)benzoic acid; trifluoroacetic acid
  • Into a 50-mL round-bottom flask, was placed a solution of methyl 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)benzoate (240 mg, 0.39 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (10/2 mL) and LiOH (10 mL). The resulting solution was stirred overnight at room temperature. The reaction was then quenched by the addition of water (10 mL).
  • The pH value of the solution was adjusted to pH 6 with hydrogen chloride (1 mol/L). The solids were collected by filtration. The product residue was purified by Prep-HPLC with the following conditions (Waters 2767-1): Column, SunFire Prep C18, 5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH3CN (25% CH3CN up to 55% in 9 min); Detector, UV 254 nm to yield 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)benzoic acid; trifluoroacetic acid as a white solid. LC/MS (ES, m/z): 596 [M+H]+.
    • Step 3: Synthesis of 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)benzamide; trifluoroacetic acid
  • Into a 50-mL round-bottom flask, was placed a solution of 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)benzoic acid (100 mg, 0.17 mmol, 1.00 equiv) in N,N-dimethylformamide (5 mL), NH4Cl (45 mg, 0.84 mmol, 5.00 equiv), HATU (77 mg, 0.20 mmol, 1.20 equiv) and DIEA (43 mg, 0.33 mmol, 2.00 equiv). The resulting solution was stirred overnight at room temperature. The reaction was then quenched by the addition of water. The solids were collected by filtration. The product residue (100 mg) was purified by Prep-HPLC with the following conditions (Waters 2767-1): Column, SunFire Prep C18, 5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH3CN (25% CH3CN up to 45% in 9 min); Detector, UV 254 nm to yield 3-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)benzamide; trifluoroacetic acid as a white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 7.56-7.63 (m, 3H), 7.19-7.38 (m, 8H), 7.01-7.06 (m, 4H), 5.68 (s, 1H), 5.08-5.16 (m, 1H), 4.00 (d, J=12.9 Hz, 2H), 3.06-3.14 (m, 2H), 2.49-2.62 (m, 3H), 2.08-2.12 (m, 2H), 1.42-1.49 (m, 2H), 1.28-1.33 (m, 2H). LC/MS (ES, m/z): 595 [M+H]+.
    • Example PH-48 4-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)benzamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00256
  • The title compound was prepared according to the procedure as described in Example PH-47 substituting methyl 4-bromobenzoate for methyl 3-bromobenzoate in Step 1.
  • 1H NMR (300 MHz, CD3OD) δ: 7.81 (d, J=8.7 Hz, 2H), 7.60 (d, J=8.4 Hz, 1H), 7.39 (s, 2H), 7.23-7.30 (m, 4H), 6.96-7.04 (m, 6H), 5.59 (s, 1H), 5.13-5.21 (m, 1H), 4.13 (d, J=14.1 Hz, 2H), 3.12-3.29 (m, 2H), 2.41-2.61 (m, 3H), 2.05-2.09 (m, 2H), 1.41-1.47 (m, 2H), 1.26-1.36 (m, 2H). LC/MS (ES, m/z): 595 [M+H]+.
    • Example PH-49 2-(3-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)phenyl)acetamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00257
  • The title compound was prepared according to the procedure as described in Example PH-47 substituting methyl 2-(3-bromophenyl)acetate for methyl 3-bromobenzoate in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 7.75-7.76 (m, 1H), 7.67 (d, J=8.8 Hz, 1H), 7.27-7.39 (m, 6H), 6.92-7.17 (m, 7H), 5.79 (s, 1H), 5.11-5.15 (m, 1H), 3.96 (d, J=12.0 Hz, 2H), 3.51 (s, 2H), 3.15-3.24 (m, 2H), 2.62-2.75 (m, 3H), 2.15-2.17 (m, 2H), 1.48-1.53 (m, 2H), 1.20-1.37 (m, 2H). LC/MS (ES, m/z): 609 [M+H]+.
    • Example PH-50 2-(4-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)phenyl)acetamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00258
  • The title compound was prepared according to the procedure as described in Example PH-47 substituting methyl 2-(4-bromophenyl)acetate for methyl 3-bromobenzoate in Step 1.
  • 1H NMR (300 MHz, CD3OD) δ: 7.70-7.72 (m, 1H), 7.62 (d, J=8.4 Hz, 1H), 7.20-7.33 (m, 7H), 7.03-7.15 (m, 6H), 5.74 (s, 1H), 5.04-5.14 (m, 1H), 3.87 (d, J=11.1 Hz, 2H), 3.42-3.44 (m, 2H), 3.06-3.15 (m, 2H), 2.54-2.61 (m, 3H), 2.08-2.18 (m, 2H), 1.42-1.49 (m, 2H), 1.25-1.31 (m, 2H). LC/MS (ES, m/z): 609 [M+H]+.
    • Example PH-51 2-(3-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)phenoxy)acetamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00259
  • The title compound was prepared according to the procedure as described in Example PH-47 substituting ethyl 2-(3-bromophenoxy)acetate for methyl 3-bromobenzoate in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 7.63-7.68 (m, 2H), 7.31-7.38 (m, 5H), 7.22 (t, J=8.4 Hz, 1H), 7.06-7.09 (m, 4H), 6.73-6.74 (m, 2H), 6.56 (d, J=8.4 Hz, 1H), 5.72 (s, 1H), 5.13-5.19 (m, 1H), 4.50 (s, 2H), 4.00 (d, J=13.6 Hz, 2H), 3.12-3.20 (m, 2H), 2.55-2.67 (m, 3H), 2.05-2.13 (m, 2H), 1.48-1.53 (m, 2H), 1.33-1.37 (m, 2H). LC/MS (ES, m/z): 625 [M+H]+.
    • Example PH-52 2-(4-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)phenoxy)acetamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00260
  • The title compound was prepared according to the procedure as described in Example PH-47 substituting ethyl 2-(4-bromophenoxy)acetate for methyl 3-bromobenzoate in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 7.83 (s, 1H), 7.68 (d, J=8.8 Hz, 1H), 7.33-7.38 (m, 5H), 7.02-7.20 (m, 8H), 5.82 (s, 1H), 5.10-5.20 (m, 1H), 4.49 (s, 2H), 3.80 (d, J=12.0 Hz, 2H), 3.12-3.22 (m, 2H), 2.62-2.72 (m, 3H), 2.16-2.26 (m, 2H), 1.48-1.51 (m, 2H), 1.35-1.38 (m, 2H). LC/MS (ES, m/z): 625 [M+H]+.
    • Example PH-53 2,2,2-trifluoroacetic acid compound with 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid (1:1)
  • Figure US20190031618A1-20190131-C00261
    • Step 1: Synthesis of yield methyl 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]benzoate
  • Into a 100-mL round-bottom flask, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (2 g, 4.20 mmol, 1.00 equiv) in dichloromethane (30 mL), methyl 3-formylbenzoate (690 mg, 4.20 mmol, 1.00 equiv) and triethylamine (a catalytic amount). The resulting solution was stirred for overnight at room temperature. To the mixture was added NaBH(OAc)3 (1.96 g, 9.25 mmol, 2.20 equiv). The resulting solution was stirred for 4 h at room temperature. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:1) to yield methyl 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]benzoate as a red solid. LC/MS (ES, m/z): 624 [M+H]+.
    • Step 2: Synthesis of 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]benzoic acid trifluoroacetic acid
  • Into a 100-mL round-bottom flask, was placed a solution of methyl 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]benzoate (780 mg, 1.25 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (30/5 mL) and LiOH (30 mL, 3M). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The pH value of the solution was adjusted to pH 7 with hydrogen chloride (12 mol/L). The solids were collected by filtration. The product residue (600 mg) was purified by Flash-Prep-HPLC with the following conditions (CombiFlash-1): Column, C18 silica gel; mobile phase, 0.05% TFA in water and CH3CN (CH3CN 10% up to 80% in 10 min); Detector, UV 254 nm to yield 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]benzoic acid trifluoroacetic acid as a white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 8.25 (s, 1H), 8.19 (d, J=7.8 Hz, 1H), 7.79-7.82 (m, 2H), 7.64-7.69 (m, 2H), 7.31-7.34 (m, 5H), 7.09-7.12 (m, 4H), 5.81 (s, 1H), 5.26 (brs, 1H), 4.50 (s, 2H), 3.75-3.79 (m, 2H), 3.34-3.42 (m, 2H), 2.87-2.91 (m, 2H), 2.51-2.58 (m, 1H), 2.34-2.39 (m, 2H), 1.31-1.50 (m, 2H). LC/MS (ES, m/z): 610 [M+H]+.
    • Example PH-54 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00262
  • Into a 50-mL round-bottom flask, was placed a solution of 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]benzoic acid (70 mg, 0.11 mmol, 1.00 equiv) in N,N-dimethylformamide (5 mL), NH4Cl (30.5 mg, 0.57 mmol, 5.00 equiv), HATU (52.4 mg, 0.14 mmol, 1.20 equiv) and DIEA (29.7 mg, 0.23 mmol, 2.00 equiv). The resulting solution was stirred overnight at room temperature. The reaction was then quenched by the addition of water (10 mL). The resulting solution was extracted with ethyl acetate (3×10 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters 2767-1): Column, SunFire Prep C18, 5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH3CN (25% CH3CN up to 55% in 10 min); Detector, UV 254 nm to yield 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]benzamide trifluoroacetic acid as a white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 8.00-8.07 (m, 2H), 7.91 (s, 1H), 7.75 (d, J=7.5 Hz, 1H), 7.61-7.66 (m, 2H), 7.24-7.33 (m, 5H), 7.09 (d, J=8.4 Hz, 4H), 5.81 (s, 1H), 5.22-5.30 (m, 1H), 4.48 (s, 2H), 3.75-3.79 (m, 2H), 3.38-3.42 (m, 2H), 2.82-2.94 (m, 2H), 2.50-2.59 (m, 1H), 2.34-2.38 (m, 2H), 1.32-1.49 (m, 4H).
  • LC/MS (ES, m/z): 609 [M+H]+.
    • Example PH-55 2,2,2-trifluoroacetic acid compound with 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid (1:1)
  • Figure US20190031618A1-20190131-C00263
  • The title compound was prepared according to the procedure as described in Example PH-53 substituting methyl 4-formylbenzoate for methyl 3-formylbenzoate in Step 1.
  • 1H NMR (300 MHz, CD3OD) δ: 8.17 (d, J=8.1 Hz, 2H), 7.89-7.95 (m, 1H), 7.70-7.64 (m, 3H), 7.34-7.26 (m, 5H), 7.10 (d, J=8.4 Hz, 4H), 5.81 (s, 1H), 5.26 (m, 1H), 4.48 (s, 1H), 3.78-3.74 (m, 2H), 3.33-3.32 (m, 2H), 2.82-2.91 (m, 2H), 2.54 (brs, 1H), 2.30-2.40 (m, 2H), 1.32-1.54 (m, 4H). LC/MS (ES, m/z): 610 [M+H]+.
    • Example PH-56 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00264
  • The title compound was prepared according to the procedure as described in Example PH-554 substituting 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid for 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid.
  • 1H NMR (300 MHz, CD3OD) δ: 8.01-8.08 (m, 2H), 7.96 (s, 1H), 7.65-7.69 (m, 3H), 7.18-7.34 (m, 5H), 7.09-7.12 (m, 4H), 5.83 (s, 1H), 5.23-5.27 (m, 1H), 4.49 (s, 2H), 3.56-3.82 (m, 2H), 3.34-3.42 (m, 2H), 2.86-2.98 (m, 2H), 2.53-2.62 (m, 1H), 2.35-2.39 (m, 2H), 1.43-1.52 (m, 2H), 1.29-1.43 (m, 2H). LC/MS: (m/z) 609 [M+H]+.
    • Example PH-57 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)furan-2-carboxylic acid hydrochloride
  • Figure US20190031618A1-20190131-C00265
  • The title compound was prepared according to the procedure as described in Example PH-53 substituting 5-formylfuran-2-carboxylic acid for methyl 3-formylbenzoate in Step 1.
  • 1H NMR (300 MHz, CD3OD) δ: 8.28 (s, 1H), 7.66 (d, J=8.7 Hz, 1H), 7.29-7.33 (m, 6H), 7.13-7.16 (m, 4H), 6.98 (d, J=3.3 Hz, 1H), 5.91 (s, 1H), 5.28-5.36 (m, 1H), 4.57 (s, 2H), 3.76-3.80 (m, 2H), 3.39-3.55 (m, 2H), 2.97-3.09 (m, 2H), 2.58-2.67 (m, 1H), 2.35-2.39 (m, 2H), 1.35-1.53 (m, 4H). LC/MS (ES, m/z): 600 [M+H]+.
    • Example PH-58 5-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)furan-2-carboxamide hydrochloride
  • Figure US20190031618A1-20190131-C00266
  • The title compound was prepared according to the procedure as described in Example PH-54 substituting 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)furan-2-carboxylic acid for 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid.
  • 1H NMR (300 MHz, CD3OD) δ: 8.49 (s, 1H), 7.68 (d, J=8.7 Hz, 1H), 7.30-7.42 (m, 5H), 7.15-7.21 (m, 5H), 6.95 (d, J=3.6 Hz, 1H), 5.95 (s, 1H), 5.32-5.40 (m, 1H), 4.59 (s, 1H), 3.41-3.82 (m, 2H), 3.10-3.22 (m, 2H), 2.62-2.70 (m, 1H), 2.35-2.39 (m, 2H), 1.32-1.55 (m, 4H). LC/MS (ES, m/z): 599 [M+H]+.
    • Example PH-59 5-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)thiophene-2-carboxylic acid hydrochloride
  • Figure US20190031618A1-20190131-C00267
  • The title compound was prepared according to the procedure as described in Example PH-53 substituting 5-formylthiophene-2-carboxylic acid for methyl 3-formylbenzoate in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 8.41 (s, 1H), 7.81 (s, 1H), 7.67 (d, J=8.8 Hz, 1H), 7.53 (d, J=3.6 Hz, 1H), 7.32-7.35 (m, 4H), 7.17 (d, J=8.4 Hz, 3H), 5.94 (s, 1H), 5.30-5.37 (m, 1H), 4.71 (s, 2H), 3.80 (d, J=12.0 Hz, 2H), 3.33-3.50 (m, 2H), 3.07-3.15 (m, 2H), 2.62-2.69 (m, 1H), 2.37 (d, J=12.0 Hz, 2H), 1.49-1.54 (m, 2H), 1.31-1.41 (m, 2H). LC/MS (ES, m/z): 616 [M+H]+.
    • Example PH-60 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)thiophene-2-carboxamide hydrochloride
  • Figure US20190031618A1-20190131-C00268
  • The title compound was prepared according to the procedure as described in Example PH-54 substituting 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)thiophene-2-carboxylic acid for 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid.
  • 1H NMR (400 MHz, CD3OD) δ: 8.43 (s, 1H), 7.75 (d, J=4.0 Hz, 1H), 7.67 (d, J=8.8 Hz, 1H), 7.53 (d, J=3.6 Hz, 1H), 7.32-7.37 (m, 5H), 7.17 (d, J=8.4 Hz, 4H), 5.94 (s, 1H), 5.30-5.40 (t, 1H), 4.70 (s, 2H), 3.80 (d, J=12.4 Hz, 2H), 3.33-3.50 (m, 2H), 3.10-3.15 (m, 2H), 2.64-2.68 (m, 1H), 2.38 (d, J=12.4 Hz, 2H), 1.49-1.54 (m, 2H), 1.31-1.38 (m, 2H). LC/MS (ES, m/z): 615 [M+H]+.
    • Example PH-61 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)thiophene-3-carboxylic acid hydrochloride
  • Figure US20190031618A1-20190131-C00269
  • The title compound was prepared according to the procedure as described in Example PH-53 substituting methyl 5-formylthiophene-3-carboxylate for methyl 3-formylbenzoate in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 8.46 (s, 1H), 8.40 (s, 1H), 7.86 (s, 1H), 7.67 (d, J=8.4 Hz, 1H), 7.36 (s, 1H), 7.32 (d, J=8.4 Hz, 4H), 7.17 (d, J=8.4 Hz, 4H), 5.95 (s, 1H), 5.37 (t, J=12.4 Hz, 1H), 4.71 (s, 2H), 3.81 (d, J=12.0 Hz, 2H), 3.41-3.50 (m, 2H), 3.12-3.18 (m, 2H), 2.64-2.71 (m, 1H), 2.38 (d, J=13.2 Hz, 2H), 1.50-1.55 (m, 2H), 1.35-1.38 (m, 2H). LC/MS (ES, m/z): 616 [M+H]+.
    • Example PH-62 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)thiophene-3-carboxamide hydrochloride
  • Figure US20190031618A1-20190131-C00270
  • The title compound was prepared according to the procedure as described in Example PH-54 substituting 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)thiophene-3-carboxylic acid for 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid.
  • 1H NMR (400 MHz, CD3OD) δ: 8.50 (s, 1H), 8.29 (s, 1H), 7.83 (s, 1H), 7.68 (d, J=8.8 Hz, 1H), 7.31-7.36 (m, 4H), 7.17 (d, J=8.4 Hz, 4H), 5.95 (s, 1H), 5.38 (t, J=11.6 Hz, 1H), 4.71 (s, 2H), 3.82 (d, J=11.6 Hz, 2H), 3.45 (t, J=12.4 Hz, 2H), 3.17 (t, J=11.6 Hz, 3H), 2.65-2.72 (m, 1H), 2.39 (d, J=12.4 Hz, 2H), 1.51-1.56 (m, 2H), 1.35-1.41 (m, 2H). LC/MS (ES, m/z): 615 [M+H]+.
    • Example PH-63 6-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)picolinic acid
  • Figure US20190031618A1-20190131-C00271
  • The title compound was prepared according to the procedure as described in Example PH-53 substituting methyl 6-formylpyridine-2-carboxylate in Step 1 was used instead of methyl 3-formylbenzoate in Step 1.
  • 1H NMR (300 MHz, DMSO) δ: 7.88-7.97 (m, 2H), 7.48-7.50 (d, J=6.0 Hz, 1H), 7.22-7.43 (m, 6H), 7.13-7.16 (m, 4H), 6.80 (d, J=12.0 Hz, 1H), 5.83 (s, 1H), 4.56 (brs, 1H), 3.62 (s, 2H), 2.90-3.06 (m, 2H), 2.19-2.33 (m, 4H), 1.90 (s, 1H), 1.75-1.79 (m, 2H), 1.00-1.25 (m, 4H). LC/MS (ES, m/z): 611 [M+H]+.
    • Example PH-64 6-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)picolinamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00272
  • The title compound was prepared according to the procedure as described in Example PH-54 substituting 6-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)picolinic acid for 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid.
  • 1H NMR (300 MHz, DMSO) δ: 8.20 (d, J=7.8 Hz, 1H), 8.13 (d, J=7.8 Hz, 1H), 8.06-8.10 (m, J=11.7 Hz, 1H), 7.74 (d, J=7.2 Hz, 1H), 7.66 (d, J=7.8 Hz, 1H), 7.29-7.35 (m, 5H), 7.07-7.14 (m, 4H), 5.86 (s, 1H), 5.30 (m, 1H), 4.64 (s, 2H), 3.85-3.89 (m, 2H), 3.45-3.46 (m, 2H), 2.97-3.08 (m, 2H), 2.60-2.75 (m, 1H), 2.30-2.39 (m, 2H), 1.35-1.50 (m, 2H), 1.21-1.35 (m, 2H). LC/MS (ES, m/z): 610 [M+H]+.
    • Example PH-65 6-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)nicotinic acid
  • Figure US20190031618A1-20190131-C00273
  • The title compound was prepared according to the procedure as described in Example PH-53 substituting methyl 6-formylpyridine-3-carboxylate for methyl 3-formylbenzoate in Step 1.
  • 1H NMR (300 MHz, DMSO) δ: 8.92 (s, 1H), 8.22 (d, J=8.4 Hz, 1H), 7.38-7.43 (m, 7H), 7.15 (d, J=8.1 Hz, 1H), 6.82 (d, J=8.1 Hz, 1H), 5.84 (s, 1H), 4.50-4.60 (m, 1H), 3.75 (s, 2H), 2.96-3.03 (m, 2H), 2.26-2.50 (m, 4H), 1.90 (s, 1H), 1.79-1.81 (m, 2H), 0.91-1.03 (m, 4H). LC/MS (ES, m/z): 611 [M+H]+.
    • Example PH-66 6-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)nicotinamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00274
  • The title compound was prepared according to the procedure as described in Example PH-54 substituting 6-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)nicotinic acid for 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid.
  • 1H NMR (300 MHz, CD3COCD3) δ: 9.11 (s, 1H), 8.31-8.35 (m, 2H), 7.69-7.84 (m, 3H), 7.29-7.33 (m, 4H), 7.15-7.24 (m, 5H), 5.89 (s, 1H), 5.40-5.50 (m, 1H), 4.59 (s, 2H), 3.88-3.92 (m, 2H), 3.53-3.56 (m, 2H), 3.19-3.23 (m, 2H), 2.55-2.57 (m, 1H), 2.41-2.44 (m, 2H), 1.44-1.49 (m, 2H), 1.24-1.29 (m, 2H). LC/MS (ES, m/z): 610 [M+H]+.
    • Example PH-67 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)nicotinic acid
  • Figure US20190031618A1-20190131-C00275
  • The title compound was prepared according to the procedure as described in Example PH-53 substituting methyl 5-formylpyridine-3-carboxylate methyl 3-formylbenzoate, in Step 1.
  • 1H NMR (300 MHz, DMSO) δ: 8.89 (s, 1H), 8.45 (s, 1H), 8.09 (s, 1H), 7.38-7.44 (m, 6H), 7.13 (d, J=8.4 Hz, 4H), 6.80 (d, J=8.8 Hz, 1H), 5.85 (s, 1H), 4.52-4.58 (m, 1H), 3.59 (s, 2H), 2.95-2.97 (m, 2H), 2.18-2.36 (m, 5H), 1.79-1.82 (m, 2H), 0.96-1.04 (m, 4H). LC/MS (ES, m/z): 611 [M+H]+.
    • Example PH-68 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)nicotinamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00276
  • The title compound was prepared according to the procedure as described in Example PH-54 substituting 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)nicotinic acid for 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid.
  • 1H NMR (300 MHz, CD3OD) δ: 9.12 (s, 1H), 8.85 (s, 1H), 8.45 (s, 1H), 7.86 (s, 1H), 7.62 (d, J=8.4 Hz, 1H), 7.23-7.29 (m, 5H), 7.06 (d, J=8.4 Hz, 4H), 5.79 (s, 1H), 5.20-5.35 (m, 1H), 4.52 (s, 2H), 3.74-3.78 (m, 2H), 3.32-3.50 (m, 2H), 2.76-2.80 (m, 2H), 2.50-2.56 (m, 1H), 2.37-2.41 (m, 2H), 1.45-1.51 (m, 2H), 1.28-1.35 (m, 2H). LC/MS (ES, m/z): 610 [M+H]+.
    • Example PH-69 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)picolinamide 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00277
  • The title compound was prepared according to the procedure as described in Example PH-53 and PH-54, substituting methyl 5-formylpyridine-2-carboxylate for methyl 3-formylbenzoate in Step 1.
  • 1H NMR (300 MHz, DMSO) δ: 8.82 (s, 1H), 8.16-8.25 (m, 2H), 7.95 (s, 1H), 7.69 (d, J=8.4 Hz, 1H), 7.27-7.34 (m, 5H), 7.10 (d, J=8.4 Hz, 4H), 5.83 (s, 1H), 5.19-5.30 (m, 1H), 4.51 (s, 2H), 3.73-3.83 (m, 2H), 3.34-3.56 (m, 2H), 2.88-3.09 (m, 2H), 2.50-2.60 (m, 1H), 2.34-2.38 (m, 2H), 1.26-1.49 (m, 4H). LC/MS (ES, m/z): 610 [M+H]+.
    • Example PH-70 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)-2-fluorobenzoic acid
  • Figure US20190031618A1-20190131-C00278
    • Step 1: Synthesis of methyl 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-fluorobenzoate
  • Into a 100-mL round-bottom flask, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (250 mg, 0.52 mmol, 1.00 equiv) in CH3CN (15 mL), methyl 3-(bromomethyl)-2-fluorobenzoate (155 mg, 0.63 mmol, 1.20 equiv) and potassium carbonate (219 mg, 1.58 mmol, 3.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The resulting solution was diluted with water (20 mL). The resulting solution was extracted with ethyl acetate (3×30 mL) and the organic layers combined, then dried over anhydrous sodium sulfate. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (35%) to yield methyl 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-fluorobenzoate as colorless oil.
    • Step 2: Synthesis of 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-fluorobenzoic acid
  • Into a 100-mL round-bottom flask, was placed a solution of methyl 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-fluorobenzoate (290 mg, 0.45 mmol, 1.00 equiv) in methanol/THF/H2O (4 ml/12 ml/4 mL), and LiOH*H2O (927 mg, 22.09 mmol, 50.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The pH value of the solution was adjusted to pH 4-5 with hydrogen chloride (1%). The solids were collected by filtration. The residue was applied onto a C18 silica gel column with CH3CN/H2O (TFA) (30%) to yield 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-fluorobenzoic acid as a white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 7.92 (t, J=6.0 Hz, 1H), 7.61-7.67 (m, 2H), 7.48 (d, J=8.4 Hz, 1H), 7.28-7.35 (m, 5H), 7.09 (d, J=8.7 Hz, 4H), 6.94 (d, J=1.2 Hz, 1H), 5.70 (s, 1H), 4.08 (s, 2H), 3.43 (d, J=12.3 Hz, 2H), 2.87 (t, J=11.4 Hz, 2H), 2.60-2.73 (m, 2H), 2.23-2.30 (m, 1H), 2.05 (d, J=10.2 Hz, 2H), 1.09-1.21 (m, 4H). LC/MS (ES, m/z): 628 [M+H]+.
    • Example PH-71 3-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)-4-fluorobenzoic acid
  • Figure US20190031618A1-20190131-C00279
  • The title compound was prepared according to the procedure as described in Example PH-70 substituting methyl 3-(bromomethyl)-4-fluorobenzoate for methyl 3-(bromomethyl)-2-fluorobenzoate in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 8.35 (d, J=7.2 Hz, 1H), 8.24-8.28 (m, 1H), 7.91 (s, 1H), 7.66 (s, 1H), 7.44 (t, J=9.2 Hz, 1H), 7.27-7.34 (m, 5H), 7.11 (d, J=8.4 Hz, 4H), 5.82 (s, 1H), 5.27 (s, 1H), 4.54 (s, 2H), 3.81 (d, J=12.4 Hz, 2H), 3.40-3.46 (m, 2H), 2.90 (t, J=11.6 Hz, 2H), 2.53-2.57 (m, 1H), 2.38 (d, J=12.8 Hz, 2H), 1.45-1.50 (m, 2H), 1.32-1.36 (m, 2H). LC/MS (ES, m/z): 628 [M+H]+.
    • Example PH-72 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)-5-fluorobenzoicacid
  • Figure US20190031618A1-20190131-C00280
  • The title compound was prepared according to the procedure as described in Example PH-70 substituting methyl 3-(bromomethyl)-5-fluorobenzoate for methyl 3-(bromomethyl)-2-fluorobenzoate in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 8.08 (s, 1H), 7.92 (s, 1H), 7.88 (d, J=7.6 Hz, 1H), 7.61-7.67 (m, 2H), 7.32-7.34 (m, 4H), 7.27 (d, J=8.8 Hz, 1H), 7.11 (d, J=8.4 Hz, 4H), 5.83 (s, 1H), 5.19-5.30 (m, 1H), 4.47 (s, 2H), 3.75 (d, J=12.0 Hz, 2H), 3.32-3.37 (m, 1H), 2.84-2.93 (m, 2H), 2.52-2.59 (m, 1H), 2.36 (d, J=13.2 Hz, 2H), 1.44-1.49 (m, 2H), 1.31-1.35 (m, 2H). LC/MS (ES, m/z): 628 [M+H]+.
    • Example PH-73 2,2,2-trifluoroacetic acid compound with 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)-2-fluorobenzoic acid (1:1)
  • Figure US20190031618A1-20190131-C00281
  • The title compound was prepared according to the procedure as described in Example PH-70 substituting methyl 5-(bromomethyl)-2-fluorobenzoate for methyl 3-(bromomethyl)-2-fluorobenzoate in Step 1.
  • 1H NMR (300 MHz, CD3OD) δ: 8.17 (d, J=1.8 Hz, 1H), 7.78-7.88 (m, 2H), 7.64 (d, J=8.4 Hz, 1H), 7.19-7.42 (m, 6H), 7.08 (d, J=8.4 Hz, 4H), 5.81 (s, 1H), 5.22 (brs, 1H), 4.43 (s, 2H), 3.72-3.75 (m, 2H), 3.31-3.32 (m, 2H), 2.82-2.96 (m, 2H), 2.41-2.55 (m, 1H), 2.03-2.37 (m, 2H), 1.31-1.45 (m, 4H). LC/MS (ES, m/z): 628 [M+H]+.
    • Example PH-74 3-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)-2-chlorobenzoic acid
  • Figure US20190031618A1-20190131-C00282
    • Step 1: Synthesis of 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-chlorobenzonitrile
  • Into a 50-mL round-bottom flask, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (200 mg, 0.42 mmol, 1.00 equiv) in dichloromethane (8 mL), 2-chloro-3-formylbenzonitrile (77 mg, 0.47 mmol, 1.10 equiv) and TEA (0.5 mL). The resulting solution was stirred overnight at room temperature. To the mixture was then added NaBH(OAc)3 (233 mg, 1.10 mmol, 2.50 equiv). The resulting solution was stirred for 3 h at room temperature. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (45%) to yield 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-chlorobenzonitrile as a pink solid. LC/MS (ES, m/z): 626 [M+H]+.
    • Step 2: Synthesis of 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-chlorobenzoic acid
  • Into a 100-mL round-bottom flask, was placed a solution of 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-chlorobenzonitrile (200 mg, 0.32 mmol, 1.00 equiv) in ethanol (10 mL) and a solution of sodium hydroxide (128 mg, 3.20 mmol, 10.00 equiv) in water (10 mL). The resulting solution was stirred overnight at 80° C. in an oil bath. The resulting mixture was concentrated under vacuum. The pH value of the solution was adjusted to pH 4-5 with hydrogen chloride (1%). The solids were collected by filtration. The residue was applied onto a C18 reversed column with CH3CN/H2O (TFA) (55%) to yield 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-chlorobenzoic acid as a white solid.
  • 1H NMR (400 MHz, CD3OD) δ: 7.84-7.96 (m, 3H), 7.65 (d, J=8.4 Hz, 1H), 7.58 (t, J=7.6 Hz, 1H), 7.33 (d, J=8.4 Hz, 4H), 7.25 (d, J=8.4 Hz, 1H), 7.11 (d, J=8.4 Hz, 4H), 5.82 (s, 1H), 5.26-5.32 (m, 1H), 4.61 (s, 2H), 3.79 (d, J=10.8 Hz, 2H), 3.46-3.54 (m, 2H), 2.79-2.98 (m, 2H), 2.53-2.53 (m, 1H), 2.35 (d, J=13.2 Hz, 2H), 1.46 (d, J=8.4 Hz, 2H), 1.28-1.34 (m, 2H). LC/MS (ES, m/z): 644 [M+H]+.
    • Example PH-75 2,2,2-trifluoroacetic acid compound with 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)-4-chlorobenzoic acid (1:1)
  • Figure US20190031618A1-20190131-C00283
  • The title compound was prepared according to the procedure as described in Example PH-70 substituting methyl 3-(bromomethyl)-4-chlorobenzoate for methyl 3-(bromomethyl)-2-fluorobenzoate in Step 1.
  • 1H NMR (300 MHz, CD3OD) δ: 8.37 (s, 1H), 8.14 (d, J=6.3 Hz, 1H), 7.86 (brs, 1H), 7.73 (d, J=8.4 Hz, 1H), 7.65 (d, J=8.7 Hz, 1H), 7.25-7.33 (m, 5H), 7.09 (d, J=8.7 Hz, 4H), 5.81 (s, 1H), 5.26 (brs, 1H), 4.60-4.66 (m, 2H), 3.73-3.76 (m, 2H), 3.46-3.55 (m, 2H), 2.79-2.89 (m, 2H), 2.53-2.56 (m, 1H), 2.33-2.37 (m, 2H), 1.45-1.47 (m, 2H), 1.34 (brs, 2H). LC/MS (ES, m/z): 644 [M+H]+.
    • Example PH-76 3-(1-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)ethyl)benzoic acid
  • Figure US20190031618A1-20190131-C00284
  • The title compound was prepared according to the procedure as described in Example PH-70 substituting methyl 3-(1-bromoethyl)benzoate for methyl 3-(bromomethyl)-2-fluorobenzoate in Step 1.
  • 1H NMR (300 MHz, DMSO) δ: 12.88 (brs, 1H), 7.84-7.90 (m, 2H), 7.47-7.59 (m, 2H), 7.31-7.42 (m, 6H), 7.14 (d, J=8.1 Hz, 4H), 6.83 (d, J=9.0 Hz, 1H), 5.83 (s, 1H), 4.43-4.48 (m, 1H), 3.63-3.68 (m, 1H), 3.04-3.07 (m, 1H), 2.90-2.94 (m, 1H), 2.00-2.27 (m, 5H), 1.73-1.81 (m, 2H), 1.35-1.37 (m, 3H), 0.83-1.00 (m, 4H).
  • LC/MS (ES, m/z): 624 [M+H]+.
    • Example PH-77 2,2,2-trifluoroacetic acid compound with 4-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)picolinic acid (1:1)
  • Figure US20190031618A1-20190131-C00285
  • The title compound was prepared according to the procedure as described in Example PH-70 substituting methyl 4-(bromomethyl)pyridine-2-carboxylate for methyl 3-(bromomethyl)-2-fluorobenzoate in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 8.80 (d, J=4.4 Hz, 1H), 8.37 (s, 1H), 7.92 (s, 1H), 7.82-7.86 (m, 1H), 7.67 (d, J=8.4 Hz, 1H), 7.20-7.44 (m, 5H), 7.13 (d, J=8.4 Hz, 4H), 5.86 (s, 1H), 5.19 (m, 1H), 4.44 (s, 2H), 3.50-3.62 (m, 2H), 3.11-3.34 (m, 2H), 2.82-2.88 (m, 2H), 2.55-2.64 (m, 1H), 2.28-2.31 (m, 2H), 1.42-1.49 (m, 2H), 1.28-1.35 (m, 2H). LC/MS (ES, m/z): 611 [M+H]+.
    • Example PH-78 2-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)isonicotinic acid
  • Figure US20190031618A1-20190131-C00286
  • The title compound was prepared according to the procedure as described in Example PH-70 substituting methyl 2-(bromomethyl)pyridine-4-carboxylate in step 1 was used instead of methyl 3-(bromomethyl)-2-fluorobenzoate in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 8.90 (d, J=5.2 Hz, 1H), 8.10 (s, 1H), 8.00 (s, 2H), 7.67 (d, J=8.4 Hz, 1H), 7.34 (t, J=8.0 Hz, 4H), 7.28 (d, J=8.4 Hz, 1H), 7.12 (d, J=8.8 Hz, 4H), 5.85 (s, 1H), 5.28-5.35 (m, 1H), 4.66 (s, 2H), 3.88 (d, J=12.4 Hz, 2H), 3.50 (t, J=11.2 Hz, 2H), 2.92-3.01 (m, 2H), 2.55-2.62 (m, 1H), 2.39 (d, J=13.2 Hz, 2H), 1.45-1.50 (m, 2H), 1.33-1.37 (m, 2H). LC/MS (ES, m/z): 611 [M+H]+.
    • Example PH-79 2-[1-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)ethyl]pyridine-4-carboxylic acid
  • Figure US20190031618A1-20190131-C00287
  • The title compound was prepared according to the procedure as described in Example PH-70 substituting methyl 2-(1-bromoethyl)pyridine-4-carboxylate for methyl 3-(bromomethyl)-2-fluorobenzoate in Step 1.
  • 1H NMR (300 MHz, DMSO) δ: 8.72 (d, J=5.1 Hz, 1H), 7.88 (s, 1H), 7.70 (d, J=5.1 Hz, 1H), 7.36-7.41 (m, 6H), 7.13 (d, J=7.5 Hz, 4H), 6.82 (d, J=7.2 Hz, 1H), 5.82 (s, 1H), 4.32-4.52 (m, 1H), 3.90-3.92 (m, 1H), 3.01-3.11 (m, 1H), 2.92-2.99 (m, 1H), 2.22-2.27 (m, 5H), 1.72-1.83 (m, 2H), 1.41 (d, J=6.9 Hz, 3H), 0.95-0.99 (m, 4H). LC/MS (ES, m/z): 625 [M+H]+.
    • Example PH-80 5-(1-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)ethyl)furan-2-carboxylic acid
  • Figure US20190031618A1-20190131-C00288
  • The title compound was prepared according to the procedure as described in Example PH-70 substituting methyl 5-(1-bromoethyl)furan-2-carboxylate for methyl 3-(bromomethyl)-2-fluorobenzoate in Step 1.
  • 1H NMR (300 MHz, CD3OD) δ: 7.64 (s, 1H), 7.47 (d, J=8.4 Hz, 1H), 7.30 (d, J=8.4 Hz, 4H), 7.05-7.11 (m, 5H), 6.93 (d, J=9.6 Hz, 1H), 6.59 (d, J=3.3 Hz, 1H), 5.71 (s, 1H), 4.77-5.00 (m, 1H), 4.34-4.41 (m, 1H), 3.41 (s, 2H), 2.93 (t, J=10.8 Hz, 1H), 2.58-2.75 (m, 3H), 2.18-2.27 (m, 1H), 2.05 (d, J=11.7 Hz, 2H), 1.66 (d, J=6.9 Hz, 3H), 1.06-1.17 (m, 4H). LC/MS (ES, m/z): 614 [M+H]+.
    • Example PH-81 3-[1-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)propyl]benzoic acid; trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00289
  • The title compound was prepared according to the procedure as described in Example PH-70 substituting methyl 3-(1-bromopropyl)benzoate for methyl 3-(bromomethyl)-2-fluorobenzoate, in Step 1.
  • 1H NMR (300 MHz, DMSO-d6) δ: 9.90 (brs, 1H), 8.15 (s, 1H), 8.08 (d, J=7.5 Hz, 1H), 7.72 (d, J=9.6 Hz, 1H), 7.66-7.69 (m, 2H), 7.54 (d, J=8.4 Hz, 1H), 7.38 (d, J=8.4 Hz, 4H), 7.10 (d, J=2.4 Hz, 4H), 6.93 (d, J=8.1 Hz, 1H), 5.72 (s, 1H), 4.90-5.08 (m, 1H), 4.58-4.61 (m, 1H), 3.79 (m, 1H), 3.65 (m, 1H), 2.94-2.97 (m, 2H), 2.68-2.72 (m, 2H), 2.34-2.36 (m, 2H), 2.14-2.17 (m, 3H), 1.14 (s, 4H), 0.71 (t, J=6.9 Hz, 3H). LC/MS (ES, m/z): 638 [M+H]+.
    • Example PH-82 2,2,2-trifluoroacetic acid compound with 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)-2-hydroxybenzoic acid (1:1)
  • Figure US20190031618A1-20190131-C00290
    • Step 1: Synthesis of 2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-6-bromophenol
  • Into a 100-mL round-bottom flask, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (300 mg, 0.63 mmol, 1.00 equiv) in dichloromethane (30 mL), 3-bromo-2-hydroxybenzaldehyde (127 mg, 0.63 mmol, 1.00 equiv) and acetic acid (a catalytic amount). The resulting solution was stirred for 4 h at room temperature NaBH(OAc)3 (335 mg, 2.50 equiv). The resulting solution was stirred for overnight at room temperature. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:1) to yield 2-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-6-bromophenol as a white solid. LC/MS (ES, m/z): 661 [M+H]+
    • Step 2: Synthesis of 6-[bis(4-chlorophenyl)methyl]-1-(1-[[3-bromo-2-(methoxymethoxy) phenyl]methyl]piperidin-4-yl)-2-cyclopropyl-1H-1,3-benzodiazole
  • Into a 50-mL round-bottom flask, was placed a solution of 2-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-6-bromophenol (170 mg, 0.26 mmol, 1.00 equiv) in tetrahydrofuran (10 mL), sodium hydride (15.5 mg, 0.39 mmol, 1.50 equiv) and MOMBr (42 mg, 1.30 equiv). The resulting solution was stirred for 2 h at room temperature. The reaction was then quenched by the addition of water (2 mL). The resulting solution was extracted with ethyl acetate (3×5 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum to yield 6-[bis(4-chlorophenyl)methyl]-1-(1-[[3-bromo-2-(methoxymethoxy) phenyl]methyl]piperidin-4-yl)-2-cyclopropyl-1H-1,3-benzodiazole as a yellow solid. LC/MS (ES, m/z): 705.5 [M+H]+
    • Step 3: Synthesis of methyl 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-(methoxymethoxy)benzoate
  • Into a 30-mL pressure tank reactor (3.5 atm), was placed a solution of 6-[bis(4-chlorophenyl)methyl]-1-(1-[[3-bromo-2-(methoxymethoxy)phenyl]methyl]piperidin-4-yl)-2-cyclopropyl-1H-1,3-benzodiazole (100 mg, 0.14 mmol, 1.00 equiv) in DMF/MeOH (1/1 mL), Pd(OAc)2 (3.0 mg, 0.01 mmol, 0.10 equiv), dppf (7.4 mg, 0.01 mmol, 0.10 equiv) and triethylamine (1.3 mg, 0.01 mmol, 0.10 equiv). To the resulting mixture was then introduced CO(g). The resulting solution was stirred overnight at 130° C. The resulting mixture was concentrated under vacuum to yield methyl 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-(methoxymethoxy)benzoate as brown oil. LC/MS (ES, m/z): 685 [M+H]+
    • Step 4: Synthesis of methyl 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-hydroxybenzoate
  • Into a 50-mL round-bottom flask, was placed a solution of methyl 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-(methoxymethoxy)benzoate (170 mg, 0.25 mmol, 1.00 equiv) in dichloromethane (20 mL) and CF3COOH (10 mL). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum to yield methyl 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-hydroxybenzoate as brown oil.
  • LC/MS (ES, m/z): 641 [M+H]+
    • Step 5: Synthesis of 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-hydroxybenzoic acid trifluoroacetic acid
  • Into a 50-mL round-bottom flask, was placed a solution of methyl 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-hydroxybenzoate (100 mg, 0.16 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (20/5 mL) and LiOH (20 mL). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The pH value of the solution was adjusted to pH 6 with hydrogen chloride (12 mol/L). The solids were collected by filtration. The product residue (50 mg) was purified by Prep-HPLC with the following conditions (Waters 2767-1)): Column, Sunfire Prep C18.5 um, 19*100 mm; mobile phase, trifluoroacetic acid in water and CH3CN (25% CH3CN up to 50% in 10 min); Detector, UV 254 nm to yield 3-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]-2-hydroxybenzoic acid trifluoroacetic acid as a pink solid.
  • 1H NMR (300 MHz, CD3OD) δ: 8.07 (d, J=7.5 Hz, 1H), 7.97 (s, 1H), 7.64-7.73 (m, 2H), 7.26-7.42 (m, 5H), 7.08-7.11 (m, 5H), 5.81 (s, 1H), 5.29 (s, 1H), 4.31-4.59 (m, 2H), 3.63-3.96 (m, 2H), 3.38-3.55 (m, 2H), 2.71-3.11 (m, 2H), 2.45-2.68 (m, 1H), 2.22-2.37 (m, 2H), 1.45-1.94 (m, 2H), 1.23-1.34 (m, 2H). LC/MS (ES, m/z): 626 [M+H]+.
    • Example PH-83 2,2,2-trifluoroacetic acid compound with 5-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)-2-hydroxybenzoic acid (1:1)
  • Figure US20190031618A1-20190131-C00291
  • The title compound was prepared according to the procedure as described in Example PH-53 substituting methyl 5-formyl-2-hydroxybenzoate for methyl 3-formylbenzoate in Step 1.
  • 1H NMR (400 MHz, CDCl3) δ 8.13 (s, 1H), 7.99 (s, 1H), 7.66-7.77 (m, 2H), 7.31-7.77 (m, 4H), 7.25-7.27 (d, J=8.4 Hz, 1H), 7.01-7.17 (m, 5H), 5.81 (s, 1H), 5.27 (s, 1H), 4.31-4.39 (m, 2H), 3.76-3.79 (m, 2H), 3.51-3.53 (m, 2H), 2.77-2.92 (m, 2H), 2.48-2.55 (m, 1H), 2.35-2.39 (m, 2H), 1.25-1.47 (m, 4H). LC/MS (ES, m/z): 626 [M+H]+.
    • Example PH-84 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]-N-phenylpiperidine-1-carboxamide; trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00292
  • Into a 50-mL round-bottom flask, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (150 mg, 0.31 mmol, 1.00 equiv) in dichloromethane (10 mL), isocyanatobenzene (45 mg, 0.38 mmol, 1.20 equiv) and triethylamine (96 mg, 0.95 mmol, 3.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters2767-1): Column, Sunfire Prep C18, 5 um, 19*100 mm; mobile phase, 0.03% ammonia in water and CH3CN (55% CH3CN up to 95% in 10 min); Detector, UV 254 nm to yield 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]-N-phenyl]piperidine-1-carboxamide as a white solid.
  • 1H NMR (400 MHz, DMSO-d6) δ: 8.62 (s, 1H), 7.49 (d, J=7.6 Hz, 2H), 7.44 (d, J=4.4 Hz, 2H), 7.32 (d, J=8.4 Hz, 4H), 7.24 (t, J=7.6 Hz, 2H), 7.09 (d, J=8.4 Hz, 4H), 6.95 (t, J=7.6 Hz, 1H), 6.84 (d, J=8.8 Hz, 1H), 5.77 (s, 1H), 4.84-4.90 (m, 1H), 4.33 (d, J=13.2 Hz, 2H), 3.02 (t, J=12.4 Hz, 2H), 2.21-2.34 (m, 3H), 1.91 (d, J=10.8 Hz, 2H), 1.00-1.08 (m, 4H). LC/MS (ES, m/z): 595 [M+H]+.
    • Example PH-85 N-benzyl-4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxamide
  • Figure US20190031618A1-20190131-C00293
  • The title compound was prepared according to the procedure as described in Example PH-84 substituting (isocyanatomethyl)benzene for isocyanatobenzene in Step 1.
  • 1H NMR (300 MHz, DMSO-d6) δ: 7.29-7.44 (m, 6H), 7.26-7.27 (m, 4H), 7.16-7.22 (m, 2H), 7.09-7.12 (m, 4H), 6.82 (d, J=6.2 Hz, 1H), 5.75 (s, 1H), 4.80 (br s, 1H), 4.26 (d, J=5.7 Hz, 2H), 4.16-4.20 (m, 2H), 2.87-2.95 (m, 2H), 2.15-2.27 (m, 3H), 1.81-1.85 (m, 2H), 1.00-1.02 (m, 4H). LC/MS (ES, m/z): 609 [M+H]+.
    • Example PH-86 4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-N-ethylpiperidine-1-carboxamide
  • Figure US20190031618A1-20190131-C00294
  • The title compound was prepared according to the procedure as described in Example PH-84 substituting (isocyanatomethyl)benzene for isocyanatoethane in Step 1.
  • 1H NMR (400 MHz, DMSO-d6) δ: 7.43 (d, J=8.4 Hz, 1H), 7.35-7.38 (m, 5H), 7.10-7.12 (m, 4H), 6.76-6.85 (m, 1H), 6.56 (s, 1H), 5.77 (s, 1H), 4.76-4.89 (m, 1H), 4.11-4.15 (m, 2H), 3.05-3.08 (m, 2H), 2.85-2.96 (m, 2H), 2.29-2.31 (m, 1H), 2.10-2.20 (m, 2H), 1.75-1.87 (m, 2H), 1.00-1.03 (m, 7H). LC/MS (ES, m/z) 547 [M+H]+.
    • Example PH-87 Phenyl 4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00295
  • Into a 100-mL round-bottom flask, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (100 mg, 0.21 mmol, 1.00 equiv) in dichloromethane (30 mL), phenyl chloroformate (40 mg, 0.26 mmol, 1.20 equiv) and triethylamine (64 mg, 0.63 mmol, 3.00 equiv).
  • The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters2767-1): Column, Sunfire Prep C18.5 um, 19*100 mm; mobile phase, 0.05% trifluoroacetic acid in water and CH3CN (CH3CN 10% up to 60% in 9 min); Detector, 254 nm to yield phenyl 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate; trifluoroacetic acid as a white solid.
  • 1H NMR (300 MHz, DMSO-d6) δ: 7.84 (s, 1H), 7.62 (d, J=8.4 Hz, 1H), 7.37-7.44 (m, 6H), 7.21-7.28 (m, 1H), 7.12-7.15 (m, 7H), 5.94 (m, 1H), 5.01-5.94 (m, 1H), 4.11-4.36 (m, 2H), 3.15-3.28 (m, 2H), 2.55-2.64 (m, 1H), 2.41-2.29 (m, 2H), 2.04-2.08 (m, 2H), 1.25-1.27 (m, 4H). LC/MS (ES, m/z) 596 [M+H]+.
    • Example PH-88 benzyl 4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00296
  • The title compound was prepared according to the procedure as described in Example PH-87 substituting benzyl carbonochloridate for phenyl chloroformate in Step 1.
  • 1H NMR (400 MHz, DMSO-d6) δ: 7.30-7.44 (m, 11H), 7.11 (m, 4H), 6.82 (d, J=8.4 Hz, 1H), 5.79 (s, 1H), 5.14 (brs, 2H), 4.80-4.86 (m, 2H), 3.02 (brs, 2H), 2.08-2.34 (m, 3H), 1.86-1.89 (m, 2H), 1.01-1.06 (m, 4H). LC/MS (ES, m/z): 610 [M+H]+.
    • Example PH-89 cyclopentyl4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00297
  • The title compound was prepared according to the procedure as described in Example PH-87 substituting cyclopentyl carbonochloridate for phenyl chloroformate in Step 1.
  • 1H NMR (400 MHz, DMSO-d6) δ: 7.30-7.44 (m, 6H), 7.11 (d, J=8.4 Hz, 4H), 6.82 (d, J=8.7 Hz, 1H), 5.79 (s, 1H), 5.14 (brs, 2H), 4.80-4.86 (m, 2H), 2.90-3.06 (m, 2H), 2.08-2.34 (m, 3H), 1.70-1.89 (m, 4H), 1.51-1.69 (m, 6H), 1.01-1.06 (m, 4H). LC/MS (ES, m/z): 588 [M+H]+.
    • Example PH-90 ethyl 4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00298
  • The title compound was prepared according to the procedure as described in Example PH-87 substituting ethyl carbonochloridate for phenyl chloroformate in Step 1.
  • 1H NMR (300 MHz, DMSO-d6) δ: 7.34-7.35 (m, 6H), 7.10-7.13 (m, 4H), 6.82 (d, J=8.4 Hz, 1H), 5.80 (s, 1H), 4.77-4.85 (m, 1H), 4.04-4.17 (m, 4H), 2.90-3.10 (brs, 2H), 2.12-2.33 (m, 3H), 1.83-1.86 (m, 2H), 1.18-1.23 (m, 3H), 1.01-1.04 (m, 4H). LC/MS (ES, m/z): 548 [M+H]+.
    • Example PH-91 2,2,2-trifluoroacetic acid compound with 3-((3-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)azetidin-1-yl)methyl)benzoic acid (1:1)
  • Figure US20190031618A1-20190131-C00299
    • Step 1: Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate
  • Into a 1000-mL 3-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of methyl 2,2-bis(4-chlorophenyl) acetate (54 g, 182.95 mmol, 1.00 equiv) in tetrahydrofuran (250 mL). To the mixture was then added t-BuOK (201 mL, 1.10 equiv) dropwise with stirring at 0° C. in 20 min. To the resulting mixture was added a solution of 2,4-difluoro-1-nitrobenzene (37.5 g, 235.72 mmol, 1.05 equiv) in tetrahydrofuran (250 mL) dropwise with stirring. The resulting solution was stirred overnight at room temperature. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:20) to yield methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate as yellow oil.
    • Step 2: Synthesis of yield tert-butyl3-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-nitrophenyl] amino)azetidine-1-carboxylate
  • Into a 250-mL round-bottom flask, was placed tert-butyl 3-aminoazetidine-1-carboxylate (2.38 g, 13.82 mmol, 1.20 equiv), DIEA (4.45 g, 34.43 mmol, 3.00 equiv), CH3CN (100 mL) and methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (5.0 g, 11.51 mmol, 1.00 equiv). The resulting solution was heated to reflux for 72 h in an oil bath. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:5) to yield tert-butyl3-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-nitrophenyl] amino)azetidine-1-carboxylate as yellow oil.
  • LC/MS (ES, m/z): 586 [M+H]+.
    • Step 3: Synthesis of tert-butyl 3-([2-amino-5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]phenyl]amino)azetidine-1-carboxylate
  • Into a 250-mL round-bottom flask, was placed a solution of tert-butyl 3-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-nitrophenyl]amino)azetidine-1-carboxylate (4.4 g, 7.50 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (60/30 mL) and Raney Ni (8 g). Hydrogen was then introduced into the resulting mixture. The resulting solution was stirred overnight at room temperature. The solids were filtered out. The resulting mixture was concentrated under vacuum to yield tert-butyl 3-([2-amino-5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]phenyl]amino)azetidine-1-carboxylate as yellow oil. LC/MS (ES, m/z): 556 [M+H]+.
    • Step 4: Synthesis of tert-butyl 3-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropaneamidophenyl]amino)azetidine-1-carboxylate
  • Into a 250-mL round-bottom flask, was placed a solution of tert-butyl 3-([2-amino-5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]phenyl]amino)azetidine-1-carboxylate (3.87 g, 6.12 mmol, 1.00 equiv, 88%) in dichloromethane (100 mL), triethylamine (2.112 g, 20.87 mmol, 3.00 equiv) and cyclopropanecarbonyl chloride (729 mg, 6.97 mmol, 1.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The resulting mixture was washed with water (1×100 mL). The resulting solution was extracted with DCM (2×100 mL) and the organic layers combined, then concentrated under vacuum to yield tert-butyl 3-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropaneamidophenyl]amino)azetidine-1-carboxylate as light yellow oil. LC/MS (ES, m/z): 625 [M+H]+.
    • Step 5: Synthesis of tert-butyl 3-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]azetidine-1-carboxylate
  • Into a 250-mL round-bottom flask, was placed tert-butyl 3-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropaneamidophenyl]amino)azetidine-1-carboxylate (4.38 g, 7.01 mmol, 1.00 equiv) and acetic acid (150 mL). The resulting solution was stirred for 3 h at 120° C. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:5) to yield tert-butyl 3-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]azetidine-1-carboxylate as light yellow oil.
    • Step 6: Synthesis of 2-(1-[1-[(tert-butoxy)carbonyl]azetidin-3-yl]-2-cyclopropyl-1H-1,3-benzodiazol-6-yl)-2,2-bis(4-chlorophenyl)acetic acid
  • Into a 250-mL round-bottom flask, was placed tert-butyl 3-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]azetidine-1-carboxylate (1.6 g, 2.64 mmol, 1.00 equiv), sodium hydroxide (6.0 g, 150.00 mmol, 57.00 equiv), methanol (50 mL), water (50 mL) and tetrahydrofuran (20 mL). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The pH value of the solution was adjusted to pH 7.0 with hydrogen chloride (3 mol/L). The solids were collected by filtration to yield 2-(1-[1-[(tert-butoxy)carbonyl]azetidin-3-yl]-2-cyclopropyl-1H-1,3-benzodiazol-6-yl)-2,2-bis(4-chlorophenyl)acetic acid as a white solid.
    • Step 7: Synthesis of tert-butyl 3-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]azetidine-1-carboxylate
  • Into a 100-mL round-bottom flask, was placed 2-(1-[1-[(tert-butoxy)carbonyl]azetidin-3-yl]-2-cyclopropyl-1H-1,3-benzodiazol-6-yl)-2,2-bis(4-chlorophenyl)acetic acid (1.0 g, 1.69 mmol, 1.00 equiv), toluene (30 mL) and DBU (1.27 g, 8.34 mmol, 6.00 equiv). The resulting solution was stirred for 3 h at 90° C. in an oil bath. The resulting mixture was washed with water (100 mL). The resulting solution was extracted with ethyl acetate (3×100 mL) and the organic layers combined, then dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:1) to yield tert-butyl 3-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]azetidine-1-carboxylate as light yellow oil.
    • Step 8: Synthesis of 1-(azetidin-3-yl)-6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazole
  • Into a 50-mL round-bottom flask, was placed tert-butyl 3-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]azetidine-1-carboxylate (800 mg, 1.46 mmol, 1.00 equiv), dichloromethane (15 mL) and trifluoroacetic acid (5 mL). The resulting solution was stirred for 3 h at room temperature. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (3:1) to yield 1-(azetidin-3-yl)-6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazole as a white solid.
    • Step 9: Synthesis of methyl 3-[(3-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]azetidin-1-yl)methyl]benzoate
  • Into a 50-mL round-bottom flask, was placed a solution of 1-(azetidin-3-yl)-6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazole (200 mg, 0.45 mmol, 1.00 equiv) in dichloromethane (30 mL), methyl 3-formylbenzoate (88 mg, 0.54 mmol, 1.20 equiv), acetic acid (0.1 mL), NaBH(OAc)3 (285 mg, 1.34 mmol, 3.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:1) to yield methyl 3-[(3-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]azetidin-1-yl)methyl]benzoate as a white solid. LC/MS (ES, m/z): 597 [M+H]+.
    • Step 10: Synthesis of 3-[(3-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl] azetidin-1-yl)methyl]benzoic acid trifluoroacetic acid
  • Into a 50-mL round-bottom flask, was placed a solution of methyl 3-[(3-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]azetidin-1-yl)methyl]benzoate (160 mg, 0.27 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (20/2 mL) and LiOH (20 mL). The resulting solution was stirred overnight at room temperature e. The resulting mixture was concentrated under vacuum. The pH value of the solution was adjusted to pH 7 with hydrogen chloride (12 mol/L). The solids were collected by filtration. The product residue (100 mg) was purified by Prep-HPLC with the following conditions (Waters2767-1): Column, Sunfire Prep C18.5 um, 19*100 mm; mobile phase, 0.05% trifluoroacetic acid in water and CH3CN (25% CH3CN up to 50% in 10 min); Detector, 254 nm to yield 3-[(3-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl] azetidin-1-yl)methyl]benzoic acid trifluoroacetic acid as a white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 8.10-8.12 (m, 2H), 7.77 (s, 1H), 7.55-7.66 (m, 3H), 7.33 (d, J=1.8 Hz, 5H), 7.18 (d, J=8.4 Hz, 4H), 5.86 (s, 2H), 4.52-4.62 (brs, 1H), 4.41-4.48 (m, 2H), 4.31 (s, 1H), 2.29-2.38 (m, 1H), 1.29-1.44 (m, 4H).
  • LC/MS (ES, m/z): 582 [M+H]+.
    • Example PH-92 2,2,2-trifluoroacetic acid compound with 3-(1-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)propyl)benzoic acid (1:1)
  • Figure US20190031618A1-20190131-C00300
  • The title compound was prepared according to the procedure as described in Example PH-70 substituting methyl 3-(1-bromopropyl)benzoate for methyl 3-(bromomethyl)-2-fluorobenzoate in Step 1.
  • 1H NMR (300 MHz, DMSO-d6) δ: 9.98 (brs, 1H), 8.15 (s, 1H), 8.08 (d, J=7.5 Hz, 1H), 7.84-7.86 (m, 1H), 7.66-7.74 (m, 2H), 7.53-7.55 (m, 1H), 7.37-7.40 (m, 4H), 7.07-7.10 (m, 4H), 6.92-6.95 (m, 1H), 5.72 (s, 1H), 4.99-5.02 (m, 1H), 4.58-4.61 (m, 1H), 3.60-3.85 (m, 2H), 2.90-3.10 (m, 2H), 2.68-2.72 (m, 2H), 2.34-2.36 (m, 2H), 2.14-2.17 (m, 3H), 1.14 (s, 4H), 0.69-0.74 (m, 3H). LC/MS (ES, m/z): 638 [M+H]+.
    • Example PH-93 3-((4-(6-((4-chlorophenyl)(phenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid
  • Figure US20190031618A1-20190131-C00301
    • Step 1: Synthesis of methyl 3-fluoro-4-nitrobenzoate
  • Into a 500-mL round-bottom flask, was placed a solution of 3-fluoro-4-nitrobenzoic acid (20 g, 108.04 mmol, 1.00 equiv) in methanol (300 mL), sulfuric acid (20 mL). The resulting solution was stirred overnight at 70° C. The resulting mixture was concentrated under vacuum. The reaction was then quenched by the addition of water (100 mL). The pH value of the solution was adjusted to pH 7 with NaOH. The resulting solution was extracted with ethyl acetate (3×100 mL) and the organic layers combined, then and dried over anhydrous sodium sulfate and concentrated under vacuum to yield methyl 3-fluoro-4-nitrobenzoate as a light yellow solid. LC/MS (ES, m/z): 200 [M+H]+
    • Step 2: Synthesis of tert-butyl 4-[[5-(methoxycarbonyl)-2-nitrophenyl]amino]piperidine-1-carboxylate
  • Into a 500-mL round-bottom flask, was placed a solution of methyl 3-fluoro-4-nitrobenzoate (21 g, 105.46 mmol, 1.00 equiv) in CH3CN (300 mL), tert-butyl 4-aminopiperidine-1-carboxylate (25 g, 124.83 mmol, 1.20 equiv) and DIEA (34 g, 263.08 mmol, 2.50 equiv). The resulting solution was stirred overnight at 85° C.
  • The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:1) to yield tert-butyl 4-[[5-(methoxycarbonyl)-2-nitrophenyl]amino]piperidine-1-carboxylate as a yellow solid. LC/MS (ES, m/z): 380 [M+H]+.
    • Step 3: Synthesis of tert-butyl 4-[[2-amino-5-(methoxycarbonyl)phenyl]amino]piperidine-1-carboxylate
  • Into a 500-mL round-bottom flask, was placed a solution of tert-butyl 4-[[5-(methoxycarbonyl)-2-nitrophenyl]amino]piperidine-1-carboxylate (18 g, 47.44 mmol, 1.00 equiv) in methanol (200 mL) and Pd/C (2 g). To the resulting mixture was then introduced H2(g). The resulting solution was stirred overnight at room temperature. The solids were filtered out. The resulting mixture was concentrated under vacuum to yield tert-butyl 4-[[2-amino-5-(methoxycarbonyl)phenyl]amino]piperidine-1l-carboxylate as a gray solid. LC/MS (ES, m/z): 350 [M+H]+
    • Step 4: Synthesis of tert-butyl 4-[[2-cyclopropaneamido-5-(methoxycarbonyl)phenyl]amino]piperidine-1-carboxylate
  • Into a 500-mL round-bottom flask, was placed a solution of tert-butyl 4-[[2-amino-5-(methoxycarbonyl)phenyl]amino]piperidine-1-carboxylate (15 g, 42.93 mmol, 1.00 equiv) in dichloromethane (300 mL) and triethylamine (13 g, 128.47 mmol, 3.00 equiv). To the mixture was then added cyclopropanecarbonyl chloride (4.47 g, 42.76 mmol, 1.00 equiv) dropwise with stirring at 0° C. The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum to yield tert-butyl 4-[[2-cyclopropaneamido-5-(methoxycarbonyl)phenyl]amino]piperidine-1-carboxylate as a gray solid. LC/MS (ES, m/z): 418 [M+H]+
    • Step 5: Synthesis of methyl 2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole-6-carboxylate
  • Into a 500-mL round-bottom flask, was placed a solution of tert-butyl 4-[[2-cyclopropaneamido-5-(methoxycarbonyl)phenyl]amino]piperidine-1-carboxylate (20 g, 47.90 mmol, 1.00 equiv) in acetic acid (300 mL). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum to yield methyl 2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole-6-carboxylate as brown oil. LC/MS (ES, m/z): 300 [M+H]+
    • Step 6: Synthesis of methyl 1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-2-cyclopropyl-1H-1,3-benzodiazole-6-carboxylate
  • Into a 1000-mL round-bottom flask, was placed a solution of methyl 2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole-6-carboxylate (17 g, 56.79 mmol, 1.00 equiv) in dichloromethane (300 mL) and a solution of sodium bicarbonate in Water (300 mL). To the mixture was then added di-tert-butyl dicarbonate (15 g, 68.73 mmol, 1.20 equiv) at 0° C. The resulting solution was stirred overnight at room temperature. The resulting solution was extracted with DCM (3×300 mL) and the organic layers combined, then concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:1) to yield methyl 1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-2-cyclopropyl-1H-1,3-benzodiazole-6-carboxylate as an off-white solid.
  • LC/MS (ES, m/z): 400 [M+H]+.
    • Step 7: Synthesis of 4 tert-butyl 4-[2-cyclopropyl-6-[methoxy(methyl)carbamoyl]-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate
  • Into a 250-mL round-bottom flask, was placed a solution of methyl 1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-2-cyclopropyl-1H-1,3-benzodiazole-6-carboxylate (4.5 g, 11.26 mmol, 1.00 equiv) in tetrahydrofuran (50 mL) and methoxy(methyl)amine hydrochloride (1.31 g, 13.43 mmol, 1.20 equiv). To the mixture was then added LiHMDS (13.5 mL, 1.20 equiv) dropwise with stirring at 0° C. The resulting solution was stirred overnight at room temperature. The mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:0) to yield 4 tert-butyl 4-[2-cyclopropyl-6-[methoxy(methyl)carbamoyl]-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate as yellow oil. LC/MS (ES, m/z): 429 [M+H]+
    • Step 8: Synthesis of tert-butyl 4-[6-[(4-chlorophenyl)carbonyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate
  • Into a 100-mL round-bottom flask, was placed a solution of tert-butyl 4-[2-cyclopropyl-6-[methoxy(methyl)carbamoyl]-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate (4.2 g, 9.80 mmol, 1.00 equiv) in tetrahydrofuran (30 mL) and a solution of bromo(4-chlorophenyl)magnesium (14.7 mL, 1.50 equiv, 1M) in toluene. The resulting solution was stirred overnight at room temperature. The mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (9:1) to yield tert-butyl 4-[6-[(4-chlorophenyl)carbonyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate as an off-white solid. LC/MS (ES, m/z): 480 [M+H]+
    • Step 9: Synthesis of tert-butyl 4-[6-[(4-chlorophenyl)(hydroxy)benzyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate
  • Into a 50-mL 3-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed Mg (150 mg, 6.00 equiv), a solution of iodobenzene (1.024 g, 5.02 mmol, 5.00 equiv) in tetrahydrofuran (5 mL) and 12 (a catalytic amount). The mixture was stirred for 3 hour at 60° C. To the mixture was then added a solution of tert-butyl 4-6-[(4-chlorophenyl)carbonyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate (500 mg, 1.04 mmol, 1.00 equiv) in tetrahydrofuran (25 mL) dropwise with stirring. The mixture was stirred for overnight at 25° C. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with dichloromethane/methanol (1:10) to yield tert-butyl 4-[6-[(4-chlorophenyl)(hydroxy)benzyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate as an off-white solid. LC/MS (ES, m/z): 558 [M+H]+
    • Step 10: Synthesis of 6-[(4-chlorophenyl)(phenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole
  • Into a 50-mL round-bottom flask, was placed a solution of tert-butyl 4-[6-[(4-chlorophenyl)(hydroxy)benzyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate (350 mg, 0.63 mmol, 1.00 equiv) in dichloromethane (30 mL), CF3COOH (6 mL) and Et3SiH (3 mL). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The reaction was then quenched by the addition of water (50 mL). The resulting solution was extracted with DCM (3×50 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column with dichloromethane/methanol (1:10) to yield 6-[(4-chlorophenyl)(phenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole as a light yellow solid. LC/MS (ES, m/z): 442 [M+H]+
    • Step 11: Synthesis of methyl 3-[(4-[6-[(4-chlorophenyl)(phenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]benzoate
  • Into a 100-mL round-bottom flask, was placed a solution of 6-[(4-chlorophenyl)(phenyl)methyl]-2-cyclopropyl-1-(piperidin-4-yl)-1H-1,3-benzodiazole (300 mg, 0.68 mmol, 1.00 equiv) in dichloromethane (20 mL), methyl 3-formylbenzoate (112 mg, 0.68 mmol, 1.00 equiv) and triethylamine (catalytic amount). The resulting solution was stirred overnight at room temperature. To the mixture was added NaBH(OAc)3 (361 mg, 1.70 mmol, 2.50 equiv). The resulting solution was allowed to react, with stirring for an additional 4 h at room temperature. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:1) to yield methyl 3-[(4-[6-[(4-chlorophenyl)(phenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]benzoate as colorless oil. LC/MS (ES, m/z): 590 [M+H]+
    • Step 12: Synthesis of yield 3-[(4-[6-[(4-chlorophenyl)(phenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]benzoic acid
  • Into a 100-mL round-bottom flask, was placed a solution of methyl 3-[(4-[6-[(4-chlorophenyl)(phenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]benzoate (280 mg, 0.47 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (30/5 mL) and LiOH (30 mL). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The pH value of the solution was adjusted to pH 7 with hydrogen chloride (12 mol/L). The solids were collected by filtration. The product residue (100 mg) was purified by Prep-HPLC with the following conditions (Waters 2767-1): Column, SunFire Prep C18, 5 um, 19*100 mm; mobile phase, 0.03% NH3*H2O in water and CH3CN (50% CH3CN up to 65% in 8 min); Detector, UV 254 nm to yield 3-[(4-[6-[(4-chlorophenyl)(phenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)methyl]benzoic acid as a white solid.
  • 1H NMR (300 MHz, DMSO-d6) 5:12.97 (brs, 1H), 7.85-7.91 (m, 2H), 7.49-7.59 (m, 2H), 7.31-7.42 (m, 6H), 7.21-7.26 (m, 1H), 7.14 (d, J=8.4 Hz, 4H), 6.85 (d, J=9.3 Hz, 1H), 5.80 (s, 1H), 4.56 (brs, 1H), 3.60 (m, 2H), 2.93 (brs, 2H), 2.17-2.43 (m, 5H), 1.775 (s, 2H), 0.95-1.24 (m, 4H). LC/MS (ES, m/z): 576 [M+H]+.
    • Example PH-94 2,2,2-trifluoroacetic acid compound with 3-((4-(6-((4-chlorophenyl)(4-fluorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid (1:1)
  • Figure US20190031618A1-20190131-C00302
  • The title compound was prepared according to the procedure as described in Example PH-93 substituting (4-fluorophenyl)magnesium bromide for phenylmagnesium bromide in Step 9.
  • 1H NMR (300 MHz, CD3OD) δ: 8.24 (s, 1H), 8.19 (d, J=7.8 Hz, 1H), 7.88 (s, 1H), 7.79 (d, J=7.5 Hz, 1H), 7.63-7.68 (m, 2H), 7.24-7.33 (m, 3H), 7.01-7.15 (m, 6H), 5.81 (s, 1H), 5.20-5.29 (m, 1H), 4.49 (s, 2H), 3.74-3.78 (m, 2H), 3.37-3.41 (m, 2H), 2.79-2.91 (m, 2H), 2.49-2.56 (m, 1H), 2.34-2.38 (m, 2H), 1.40-1.49 (m, 2H), 1.30-1.35 (m, 2H). LC/MS: (m/z) 594 [M+H]+
    • Example PH-95 3-((4-(6-((4-chlorophenyl)(p-tolyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid
  • Figure US20190031618A1-20190131-C00303
  • The title compound was prepared according to the procedure as described in Example PH-93 substituting p-tolylmagnesium bromide for phenylmagnesium bromide in Step 9.
  • 1H NMR (300 MHz, DMSO-d6) δ: 7.85-7.91 (m, 2H), 7.50-7.59 (m, 2H), 7.35-7.41 (m, 4H), 7.11-7.20 (m, 4H), 6.99-7.02 (m, 2H), 6.81 (d, J=8.4 Hz, 1H), 5.74 (s, 1H), 4.50-4.60 (m, 1H), 3.61 (s, 2H), 2.85-3.00 (m, 2H), 2.17-2.29 (m, 8H), 1.77-1.81 (m, 2H), 0.98-1.05 (m, 4H). LC/MS (ES, m/z): 590 [M+H]+.
    • Example PH-96 2,2,2-trifluoroacetic acid compound with 3-((4-(6-((4-chlorophenyl)(4-(trifluoromethyl)phenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid (1:1)
  • Figure US20190031618A1-20190131-C00304
  • The title compound was prepared according to the procedure as described in Example PH-93 substituting (4-(trifluoromethyl)phenyl)magnesium bromide for phenylmagnesium bromide in Step 9.
  • 1H NMR (300 MHz, CD3OD) δ 9.96 (s, 1H), 8.17-8.25 (m, 1H), 7.92-7.96 (m, 1H), 7.79-7.82 (d, J=7.5 Hz), 7.61-7.68 (m, 4H), 7.24-7.35 (m, 5H), 7.10-7.13 (m, 2H), 5.91 (s, 1H), 5.08-5.31 (m, 1H), 4.50 (s, 1H), 3.69-3.79 (m, 2H), 3.38-3.42 (m, 2H), 2.87-2.99 (m, 2H), 2.52-2.60 (m, 1H), 2.26-2.39 (m, 2H), 1.40-1.47 (m, 2H), 1.33 (m, 2H). LC/MS (ES, m/z): 644 [M+H]+.
    • Example PH-97 2,2,2-trifluoroacetic acid compound with 3-((4-(6-(bis(4-fluorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid
  • Figure US20190031618A1-20190131-C00305
  • The title compound was prepared according to the procedure as described in Example PH-93 substituting (4-fluorophenyl)magnesium bromide for (4-chlorophenyl)magnesium bromide in Step 8, and substituting (4-fluorophenyl)magnesium bromide for phenylmagnesium bromide in Step 9.
  • 1H NMR (300 MHz, CD3OD) δ 8.25 (s, 1H), 8.19 (d, J=8.7 Hz, 1H), 7.89 (s, 1H), 7.79-7.81 (m, 1H), 7.63-7.68 (m, 2H), 7.24-7.73 (m, 1H), 7.01-7.14 (m, 8H), 5.82 (s, 1H), 5.21-5.25 (m, 1H), 4.49 (s, 2H), 3.74-3.78 (m, 2H), 3.32-3.42 (m, 2H), 2.80-2.91 (m, 2H), 2.49-2.54 (m, 1H), 2.34-2.38 (m, 2H), 1.38-1.46 (m, 2H), 1.29-1.34 (m, 2H). LC/MS (ES, m/z): 578 [M+H]+.
    • Example PH-98 2,2,2-trifluoroacetic acid compound with 3-((4-(2-cyclopropyl-6-(dip-tolylmethyl)-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid (1:1)
  • Figure US20190031618A1-20190131-C00306
  • The title compound was prepared according to the procedure as described in Example PH-93 substituting p-tolylmagnesium bromide for (4-chlorophenyl)magnesium bromide in Step 8.
  • 1H NMR (300 MHz, CD3OD) δ: 8.18-8.23 (m, 2H), 7.87 (s, 1H), 7.78-7.80 (m, 1H), 7.60-7.68 (m, 2H), 7.28 (d, J=8.7 Hz, 1H), 7.08-7.11 (m, 4H), 6.95-6.98 (m, 4H), 5.72 (s, 1H), 5.23-5.27 (m, 1H), 4.48 (s, 2H), 3.740-3.78 (m, 2H), 3.32-3.43 (m, 2H), 2.79-2.87 (m, 2H), 2.50-2.58 (m, 1H), 2.35-2.39 (m, 2H), 2.29 (s, 6H), 1.42-1.48 (m, 2H), 1.35-1.39 (m, 2H). LC/MS (ES, m/z): 570 [M+H]+.
    • Example PH-99 2,2,2-trifluoroacetic acid compound with 3-((4-(2-(2-aminoethyl)-6-(bis(4-chlorophenyl)methyl)-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)benzoic acid (1:1)
  • Figure US20190031618A1-20190131-C00307
    • Step 1: Synthesis of ethyl 3-([4-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-[(piperidin-4-yl)amino]phenyl]carbamoyl)propanoate
  • Into a 250-mL round-bottom flask, was placed a solution of tert-butyl 4-([2-amino-5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]phenyl]amino)piperidine-1-carboxylate (3.7 g, 6.33 mmol, 1.00 equiv) in dichloromethane (30 mL), ethyl 4-chloro-4-oxobutanoate (1.25 g, 7.59 mmol, 1.20 equiv) and triethylamine (1.9 g, 18.78 mmol, 3.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum to yield ethyl 3-([4-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-[(piperdin-4-yl)amino]phenyl]carbamoyl)propanoate as brown oil. LC/MS (ES, m/z): 613 [M+H]+.
    • Step 2: Synthesis of tert-butyl 4-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-(3-ethoxy-3-oxopropyl) H-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate
  • Into a 250-mL round-bottom flask, was placed a solution of ethyl 3-([4-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-[(piperidin-4-yl)amino]phenyl]carbamoyl)propanoate (5 g, 8.16 mmol, 1.00 equiv) in dichloromethane (50 mL), di-tert-butyl dicarbonate (2.14 g, 9.81 mmol, 1.20 equiv) and a saturated solution of sodium bicarbonate/H2O (50 mL). The resulting solution was stirred for 6 h at room temperature. The resulting mixture was concentrated under vacuum. The resulting solution was extracted with ethyl acetate (3×100 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum to yield tert-butyl 4-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-(3-ethoxy-3-oxopropyl)-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate as brown oil. LC/MS (ES, m/z): 695 [M+H]+.
    • Step 3: Synthesis of 3-[6-[bis(4-chlorophenyl)(carboxy)methyl]-1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-1H-1,3-benzodiazol-2-yl]propanoic acid
  • Into a 250-mL round-bottom flask, was placed a solution of tert-butyl 4-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-(3-ethoxy-3-oxopropyl)-1H-1,3-benzodiazol-1-yl]piperidine-1-carboxylate (5 g, 7.20 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (50/20 mL) and sodium hydroxide (20 mL). The resulting solution was stirred overnight at 50° C. The resulting mixture was concentrated under vacuum. The pH value of the solution was adjusted to pH 6 with hydrogen chloride (12 mol/L). The solids were collected by filtration to yield 3-[6-[bis(4-chlorophenyl)(carboxy)methyl]-1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-1H-1,3-benzodiazol-2-yl]propanoic acid as a brown solid. LC/MS (ES, m/z): 653 [M+H]+.
    • Step 4: Synthesis of 3-[6-[bis(4-chlorophenyl)methyl]-1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-1H-1,3-benzodiazol-2-yl]propanoic acid
  • Into a 250-mL round-bottom flask, was placed a solution of 3-[6-[bis(4-chlorophenyl)(carboxy)methyl]-1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-1H-1,3-benzodiazol-2-yl]propanoic acid (4 g, 6.13 mmol, 1.00 equiv) in toluene (50 ml) and DBU (5.6 g, 22.23 mmol, 6.00 equiv). The resulting solution was stirred for 3 h at 90° C. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with DCM:MeOH (10:1) to yield 3-[6-[bis(4-chlorophenyl)methyl]-1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-1H-1,3-benzodiazol-2-yl]propanoic acid as a solid. LC/MS (ES, m/z): 609 [M+H]+.
    • Step 5: Synthesis of 3-[6-[bis(4-chlorophenyl)methyl]-1-(piperidin-4-yl)-1H-1,3-benzodiazol-2-yl]propanoic acid
  • Into a 250-mL round-bottom flask, was placed a solution of 3-[6-[bis(4-chlorophenyl)methyl]-1-[1-[(tert-butoxy)carbonyl]piperidin-4-yl]-1H-1,3-benzodiazol-2-yl]propanoic acid (1.2 g, 1.97 mmol, 1.00 equiv) in dichloromethane (30 ml) and trifluoroacetic acid (5 mL), (30 L). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The product residue (1.2 g) was purified by Flash-Prep-HPLC with the following conditions (CombiFlash-1): Column, C18 silica gel; mobile phase, water and CH3CN (CH3CN 10% up to 60% in 6 min; Detector, UV 254 nm. 700 mg product was obtained to yield 3-[6-[bis(4-chlorophenyl)methyl]-1-(piperidin-4-yl)-1H-1,3-benzodiazol-2-yl]propanoic acid as a yellow solid. LC/MS (ES, m/z): 508 [M+H]+.
    • Step 6: Synthesis of 3-[6-[bis(4-chlorophenyl)methyl]-1-(1-[[3-(methoxycarbonyl)phenyl]methyl]piperidin-4-yl)-1H-1,3-benzodiazol-2-yl]propanoic acid
  • Into a 50-mL round-bottom flask, was placed a solution of 3-[6-[bis(4-chlorophenyl)methyl]-1-(piperidin-4-yl)-1H-1,3-benzodiazol-2-yl]propanoic acid (350 mg, 0.69 mmol, 1.00 equiv) in methanol (10 ml), methyl 3-formylbenzoate (136 mg, 0.83 mmol, 1.20 equiv), acetic acid (a catalytic amount) and NaBH3(CN) (130 mg, 3.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with DCM:MeOH (10:1) to yield 3-[6-[bis(4-chlorophenyl)methyl]-1-(1-[[3-(methoxycarbonyl)phenyl]methyl]piperdin-4-yl)-1H-1,3-benzodiazol-2-yl]propanoic acid as a white solid. LC/MS (ES, m/z): 656.6 [M+H]+.
    • Step 7: Synthesis of 254 nm 3-([4-[2-(2-aminoethyl)-6-[bis(4-chlorophenyl)methyl]-1H-1,3-benzodiazol-1-yl]piperidin-1-yl]methyl)benzoic acid; trifluoroacetic acid
  • Into a 50-mL round-bottom flask, was placed a solution of 3-[6-[bis(4-chlorophenyl)methyl]-1-(1-[[3-(methoxycarbonyl)phenyl]methyl]piperidin-4-yl)-1H-1,3-benzodiazol-2-yl]propanoic acid (140 mg, 0.21 mmol, 1.00 equiv) in benzene (20 mL), DPPA (65 mg, 0.24 mmol, 1.10 equiv) and triethylamine (26 mg, 0.26 mmol, 1.20 equiv). The resulting solution was stirring for 2 h at reflux. The resulting solution was diluted with ethyl acetate (20 mL). The resulting mixture was washed with water (1×20 mL) and then brine (1×20 mL). The resulting mixture was concentrated under vacuum. To the resulting mixture was then added LiOH (10 mL, 1M) and tetrahydrofuran (20 mL). The resulting solution was stirred overnight at room temperature. The resulting solution was extracted with ethyl acetate (2×20 mL) and the organic layers combined. The resulting solution was extracted with DCM (2×20 mL) and the organic layers combined and concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters 2767-1): Column, SunFire Prep C18, 5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH3CN (45% CH3CN up to 75% in 9 min); Detector, UV 254 nm 3-([4-[2-(2-aminoethyl)-6-[bis(4-chlorophenyl)methyl]-1H-1,3-benzodiazol-1-yl]piperidin-1-yl]methyl)benzoic acid; trifluoroacetic acid as a white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 8.25 (s, 1H), 8.19-8.17 (d, J=7.5 Hz, 1H), 7.86-7.80 (m, 2H), 7.62-7.68 (m, 2H), 7.28-7.33 (m, 4H), 7.02-7.11 (m, 4H), 6.94 (d, J=3.6 Hz, 1H), 5.77 (s, 1H), 4.50 (s, 2H), 3.59-3.82 (m, 2H), 3.31-3.53 (m, 6H), 2.78-2.98 (m, 2H), 1.30-1.36 (m, 2H). LC/MS (ES, m/z): 613[M+H]+.
    • Example PH-100 4-(1s,4s)-4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)cyclohexylamino)benzoic acid
  • Figure US20190031618A1-20190131-C00308
    • Step 1: Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-[[(1s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]amino]phenyl)acetate
  • Into a 500-mL round-bottom flask, was placed a solution of methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (10 g, 23.03 mmol, 1.00 equiv) in CH3CN (300 mL), tert-butyl N-[(1s,4s)-4-aminocyclohexyl]carbamate (5.44 g, 25.38 mmol, 1.10 equiv) and DIEA (14.8 g, 114.52 mmol, 4.97 equiv). The resulting solution was stirred overnight at 85° C. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (0:100-100:0) to yield methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-[[(1s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]amino]phenyl)acetate as yellow oil. LC/MS (ES, m/z): 629 [M+H]+.
    • Step 2: Synthesis of yield methyl 2-(4-amino-3-[[(1s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]amino]phenyl)-2,2-bis(4-chlorophenyl)acetate
  • Into a 1000-mL round-bottom flask, was placed a solution of methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-[[(1 s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]amino]phenyl)acetate (9 g, 14.32 mmol, 1.00 equiv) in methanol/THF (400/50 mL) and Raney Ni (832 mg, 14.34 mmol, 1.00 equiv). To the reaction mixture was then introduced hydrogen. The resulting solution was stirred overnight at room temperature. The solids were filtered out. The resulting mixture was concentrated under vacuum to yield methyl 2-(4-amino-3-[[(1 s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]amino]phenyl)-2,2-bis(4-chlorophenyl)acetate as light yellow oil. LC/MS (ES, m/z): 598.5 [M+H]+.
    • Step 3: Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-(4-cyclopropaneamido-3-[[(1s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]amino]phenyl)acetate
  • Into a 500-mL round-bottom flask, was placed a solution of methyl 2-(4-amino-3-[[(1s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]amino]phenyl)-2,2-bis(4-chlorophenyl)acetate (7.9 g, 13.20 mmol, 1.00 equiv) in dichloromethane (300 mL), triethylamine (4 g, 39.53 mmol, 3.00 equiv) and cyclopropanecarbonyl chloride (1.65 g, 15.78 mmol, 1.20 equiv). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum to yield methyl 2,2-bis(4-chlorophenyl)-2-(4-cyclopropaneamido-3-[[(1s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]amino]phenyl)acetate as light yellow oil. LC/MS (ES, m/z): 667 [M+H]+.
    • Step 4: Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-[2-cyclopropyl-1-[(1s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]-1H-1,3-benzodiazol-6-yl]acetate
  • Into a 500-mL round-bottom flask, was placed methyl 2,2-bis(4-chlorophenyl)-2-(4-cyclopropaneamido-3-[[(1 s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]amino]phenyl)acetate (8 g, 12.00 m mol, 1.00 equiv) and acetic acid (350 mL). The resulting solution was stirred for 3 h at 120° C. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (0:100-100:0) to yield methyl 2,2-bis(4-chlorophenyl)-2-[2-cyclopropyl-1-[(1 s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]-1H-1,3-benzodiazol-6-yl]acetate as colorless oil.
    • Step 5: Synthesis of yield 2,2-bis(4-chlorophenyl)-2-[2-cyclopropyl-1-[(1s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]-1H-1,3-benzodiazol-6-yl]acetic acid
  • Into a 1000-mL round-bottom flask, was placed a solution of methyl 2,2-bis(4-chlorophenyl)-2-[2-cyclopropyl-1-[(1 s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]-1H-1,3-benzodiazol-6-yl]acetate (7.2 g, 11.10 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (300/50 mL) and sodium hydroxide (55.5 mL). The resulting solution was stirred overnight at 50° C. The resulting mixture was concentrated under vacuum. The residue was dissolved in ethyl acetate (300 mL). The resulting mixture was washed with water (3×300 mL). The organic phase was dried over anhydrous sodium sulfate and concentrated under vacuum to yield 2,2-bis(4-chlorophenyl)-2-[2-cyclopropyl-1-[(1 s,4s)-1-[[(tert-butoxy)carbonyl]amino]cyclohexyl]-1H-1,3-benzodiazol-6-yl]acetic acid as a white solid. LC/MS (ES, m/z): 635 [M+H]+.
    • Step 6: Synthesis of tert-butyl N-[(1s,4s)-4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl]carbamate
  • Into a 500-mL round-bottom flask, was placed a solution of 2,2-bis(4-chlorophenyl)-2-[2-cyclopropyl-1-[(1 s,4s)-4-[[(tert-butoxy)carbonyl]amino]cyclohexyl]-1H-1,3-benzodiazol-6-yl]acetic acid (6.5 g, 10.24 mmol, 1.00 equiv) in toluene (200 mL) and DBU (9.36 g, 61.48 mmol, 6.00 equiv). The resulting solution was stirred for 3 h at 90° C. The resulting mixture was concentrated under vacuum. The residue was dissolved in ethyl acetate (300 mL). The resulting mixture was washed with water (3×300 mL). The organic phase was dried over anhydrous sodium sulfate and concentrated under vacuum to yield tert-butyl N-[(1 s,4s)-4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl]carbamate as colorless oil. LC/MS (ES, m/z): 591 [M+H]+.
    • Step 7: Synthesis of (1s,4s)-4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexan-1-amine
  • Into a 100-mL round-bottom flask, was placed a solution of tert-butyl N-[(1 s,4s)-4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl]carbamate (5.7 g, 9.65 mmol, 1.00 equiv) in dichloromethane (50 mL) and trifluoroacetic acid (10 mL). The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The residue was dissolved in DCM (100 mL). The resulting mixture was washed with sat. sodium bicarbonate (3×50 mL). The organic phase was dried over anhydrous sodium sulfate and concentrated under vacuum. The product residue was purified by re-crystallization from DCM to yield (1s,4s)-4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexan-1-amine as a white solid. LC/MS (ES, m/z): 490 [M+H]+.
    • Step 8: Synthesis of methyl 4-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl)amino]benzoate
  • Into a 100-mL round-bottom flask, was placed 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexan-1-amine (400 mg, 0.82 mmol, 1.00 equiv), methyl 4-bromobenzoate (352 mg, 1.64 mmol, 2.00 equiv), Pd2(dba)3*CHCl3 (126 mg, 0.12 mmol, 0.15 equiv), X-phos (58 mg, 0.12 mmol, 0.15 equiv), Cs2CO3 (1.064 g, 3.27 mmol, 4.00 equiv) and toluene (20 mL). The resulting solution was stirred overnight at 90° C. in an oil bath. The reaction progress was monitored by LC-MS. The solids were filtered out. The resulting solution was extracted with ethyl acetate (3×30 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1/2) to yield methyl 4-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl)amino]benzoate as light yellow oil. LC/MS (ES, m/z): 625 [M+H]+.
    • Step 9: Synthesis of 4-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl)amino]benzoic acid
  • Into a 100-mL round-bottom flask, was placed methyl 4-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl)amino]benzoate (270 mg, 0.43 mmol, 1.00 equiv), tetrahydrofuran (15 mL), water (15 mL), methanol (3 mL) and LiOH*H2O (909 mg, 21.66 mmol, 50.00 equiv). The resulting solution was stirred overnight at room temperature. The reaction progress was monitored by LC-MS. The pH value of the solution was adjusted to pH 7.0 with hydrogen chloride solution (1 mol/L). The resulting solution was extracted with ethyl acetate (3×30 mL) and the organic layers combined and concentrated under vacuum. The residue was applied onto a silica gel column with dichloromethane/methanol (13/1). The product residue was purified by Prep-HPLC with the following conditions (Waters (2767-1)): Column, Sunfire Prep C18.5 um, 19*100 mm; mobile phase, 0.05% NH4HCO3 in Water and CH3CN (10% CH3CN up to 55% in 13 min); Detector, UV 254 nm to yield 4-[(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl)amino]benzoic acid as a white solid.
  • 1H NMR (300 MHz, DMSO-d6): 11.96 (s, 1H), 7.69 (d, J=8.7 Hz, 2H), 7.61 (s, 1H), 7.33-7.42 (m, 5H), 7.13-7.15 (d, J=8.4 Hz, 4H), 6.59-6.80 (m, 4H), 5.74 (s, 1H), 4.65-4.65 (m, 1H), 3.73 (s, 1H), 2.29-2.33 (m, 1H), 2.01-2.07 (m, 2H), 1.77-1.85 (m, 2H), 1.65-1.69 (m, 2H), 0.99-1.04 (m, 4H). LC/MS (ES, m/z): 610 [M+H]+.
    • Example PH-101 2,2,2-trifluoroacetic acid compound with 4-((1r,4r)-4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-1H-benzo[d]imidazol-1-yl)cyclohexylamino)benzoic acid
  • Figure US20190031618A1-20190131-C00309
  • The title compound was prepared according to the procedure as described in Example PH-100 substituting tert-butyl N-[(1r,4r)-4-aminocyclohexyl]carbamate for tert-butyl N-[(1s,4s)-4-aminocyclohexyl]carbamate in Step 1.
  • 1H NMR (400 MHz, DMSO) δ: 7.94 (s, 1H), 7.64-7.72 (m, 3H), 7.43 (d, J=8.4 Hz, 4H), 7.15-7.20 (m, 5H), 6.64 (d, J=8.8 Hz, 2H), 6.43 (brs, 1H), 5.95 (s, 1H), 4.82-4.84 (m, 1H), 3.48-3.51 (m, 1H), 2.66 (brs, 1H), 2.31-2.40 (m, 2H), 2.12-2.15 (m, 2H), 2.03-2.05 (m, 2H), 1.45-1.54 (m, 2H), 1.15-1.30 (m, 4H). LC/MS (ES, m/z): 610 [M+H]+.
    • Example PH-102 3-((1r,4r)-4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)cyclohexylamino)phenol 2,2,2-trifluoroacetate
  • Figure US20190031618A1-20190131-C00310
    • Step 1: Synthesis of 3-methoxy-N-[(1r,4r)-4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl]aniline
  • Into a 100-mL round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of (1r,4r)-4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexan-1-amine (400 mg, 0.82 mmol, 1.00 equiv) in Toluene (50 mL), 1-bromo-3-methoxybenzene (228.2 mg, 1.22 mmol, 1.50 equiv), Pd2(dba)3*CHCl3 (127 mg, 0.12 mmol, 0.15 equiv), X-Phos (175 mg, 0.37 mmol, 0.45 equiv) and Cs2CO3 (2 g, 6.14 mmol, 7.53 equiv). The resulting solution was stirred overnight at 90° C. The resulting solution was diluted with ethyl acetate (50 mL). The resulting mixture was washed with water (3×50 mL). The organic phase was dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (0:100-1:1) to yield 3-methoxy-N-[(1r,4r)-4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl]aniline as yellow oil. LC/MS (ES, m/z): 597 [M+H]+.
    • Step 2: Synthesis of 3-[[(1r,4r)-4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl]amino]phenol; trifluoroacetic acid
  • Into a 100-mL round-bottom flask, was placed a solution of 3-methoxy-N-[(1r,4r)-4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl]aniline (250 mg, 0.42 mmol, 1.00 equiv) in dichloromethane (50 mL). To the mixture was then added BBr3 (1.26 mL) dropwise with stirring at −78° C. The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The residue was dissolved in DCM (100 mL). The resulting mixture was washed with sat. NH4Cl (3×50 mL). The organic phase was dried over anhydrous sodium sulfate and concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters 2767-1): Column, SunFire Prep C18, 5 um, 19*100 mm; mobile phase, 0.05% trifluoroacetic acid in Water and CH3CN (18% CH3CN up to 50% in 8 min); Detector, UV 254 nm to yield 3-[[(1r,4r)-4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexyl]amino]phenol; trifluoroacetic acid as a white solid.
  • 1H NMR (300 MHz, DMSO-d6) δ: 9.10 (brs, 1H), 7.99 (s, 1H), 7.66 (d, J=8.7 Hz, 1H), 7.41-7.43 (m, 4H), 7.11-7.22 (m, 5H), 6.94-6.95 (m, 1H), 6.04-6.21 (m, 3H), 5.95 (s, 1H), 4.79-4.82 (m, 1H), 3.41-3.43 (m, 1H), 2.63-2.69 (m, 1H), 2.27-2.39 (m, 2H), 2.03-2.15 (m, 4H), 1.46-1.53 (m, 2H), 1.29-1.30 (m, 4H).
  • LC/MS (ES, m/z): 582 [M+H]+.
    • Example PH-103 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-[(3-methoxyphenyl)methyl]-1H-1,3-benzodiazole trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00311
    • Step 1: Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-(3-[[(3-hydroxyphenyl)methyl]amino]-4-nitrophenyl)acetate
  • Into a 250-mL round-bottom flask, was placed methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (4 g, 9.21 mmol, 1.00 equiv), (3-methylphenyl)methanamine (1.25 g, 10.32 mmol, 1.12 equiv) and a solution of DIEA (3 g, 23.21 mmol, 2.52 equiv) in CH3CN (100 mL). The resulting solution was stirred overnight at 75° C. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:5) to yield methyl 2,2-bis(4-chlorophenyl)-2-(3-[[(3-hydroxyphenyl)methyl]amino]-4-nitrophenyl)acetate as an orange solid. LC/MS (ES, m/z): 537 [M+H]+.
    • Step 2: Synthesis of methyl 2-(4-amino-3-[[(4-hydroxyphenyl)methyl]amino]phenyl)-2,2-bis(4-chlorophenyl)acetate
  • Into a 250-mL round-bottom flask, was placed methyl 2,2-bis(4-chlorophenyl)-2-(3-[[(4-hydroxyphenyl)methyl]amino]-4-nitrophenyl)acetate (3 g, 5.58 mmol, 1.00 equiv) and a solution of Raney Ni (3 g, 1.00 equiv) in methanol (80 mL). To the resulting mixture was then introduced H2(g). The resulting solution was stirred overnight at room temperature. The solids were filtered out. The resulting mixture was concentrated under vacuum to yield methyl 2-(4-amino-3-[[(4-hydroxyphenyl)methyl]amino]phenyl)-2,2-bis(4-chlorophenyl)acetate as a brown solid. LC/MS (ES, m/z): 507 [M+H]+.
    • Step 3: Synthesis of methyl 2,2-bis(4-chlorophenyl)-2-[2-cyclopropyl-1-[(3-hydroxyphenyl)methyl]-1H-1,3-benzodiazol-6-yl]acetate
  • Into a 50-mL round-bottom flask, was placed methyl 2-(4-amino-3-[[(3-hydroxyphenyl)methyl]amino]phenyl)-2,2-bis(4-chlorophenyl)acetate (1 g, 1.97 mmol, 1.00 equiv) and a solution of cyclopropanecarbaldehyde (828 mg, 11.81 mmol, 5.99 equiv) in DMSO (10 mL). The resulting solution was stirred overnight at 50° C. The resulting solution was diluted with ethyl acetate (150 mL). The resulting mixture was washed with aq. sodium chloride (3×50 mL). The organic phase was dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:1) to yield methyl 2,2-bis(4-chlorophenyl)-2-[2-cyclopropyl-1-[(3-hydroxyphenyl)methyl]-1H-1,3-benzodiazol-6-yl]acetate as a brown solid. LC/MS (ES, m/z): 557.5 [M+H]+.
    • Step 4: Synthesis of 2,2-bis(4-chlorophenyl)-2-[2-cyclopropyl-1-[(3-hydroxyphenyl)methyl]-1H-1,3-benzodiazol-6-yl]acetic acid
  • Into a 100-mL round-bottom flask, was placed a solution of methyl 2,2-bis(4-chlorophenyl)-2-[2-cyclopropyl-1-[(3-hydroxyphenyl)methyl]-1H-1,3-benzodiazol-6-yl]acetate (700 mg, 1.26 mmol, 1.00 equiv) in tetrahydrofuran (20 mL) and a solution of LiOH*H2O (527 mg, 12.56 mmol, 10.00 equiv) in water (20 mL). The resulting solution was stirred overnight at 50° C. The resulting mixture was concentrated under vacuum. The resulting solution was diluted with water (20 mL). The resulting solution was extracted with ethyl acetate (2×20 mL) and the organic layers combined, then dried in an oven under reduced pressure. and concentrated under vacuum to yield 2,2-bis(4-chlorophenyl)-2-[2-cyclopropyl-1-[(3-hydroxyphenyl)methyl]-1H-1,3-benzodiazol-6-yl]acetic acid as yellow oil. LC/MS (ES, m/z): 543 [M+H]+.
    • Step 5: Synthesis of 3-([6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]methyl)phenol
  • Into a 100-mL round-bottom flask, was placed 2,2-bis(4-chlorophenyl)-2-[2-cyclopropyl-1-[(3-hydroxyphenyl)methyl]-1H-1,3-benzodiazol-6-yl]acetic acid (600 mg, 1.10 mmol, 1.00 equiv) and a solution of DBU (1 g, 6.57 mmol, 6.00 equiv) in toluene (30 mL). The resulting solution was stirred for 2 h at 100° C. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:1) to yield 3-([6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]methyl)phenol as a yellow solid.
    • Step 6: Synthesis of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-[(3-methoxyphenyl)methyl]-1H-1,3-benzodiazole trifluoroacetic acid
  • Into a 50-mL round-bottom flask, was placed a solution of 3-([6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]methyl)phenol (100 mg, 0.20 mmol, 1.00 equiv) in N,N-dimethylformamide (20 mL), potassium carbonate (83 mg, 0.60 mmol, 3.00 equiv) and iodomethane (32 mg, 0.23 mmol, 1.10 equiv). The resulting solution was stirred overnight at room temperature. The reaction was then quenched by the addition of water (20 mL). The resulting solution was extracted with ethyl acetate (3×20 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters 2767-1): Column, SunFire Prep C18, 5 um, 19*100 mm; mobile phase, water in 0.05% TFA and CH3CN (20% CH3CN up to 45% in 12 min); Detector, UV 254 nm to yield 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-[(3-methoxyphenyl)methyl]-1H-1,3-benzodiazole trifluoroacetic acid as a white solid.
  • 1H NMR (300 MHz, CDCl3) δ: 7.90 (d, J=8.4 Hz, 1H), 7.21-7.30 (m, 6H), 6.89-6.94 (m, 6H), 6.60-6.62 (m, 2H), 5.60 (s, 1H), 5.42 (s, 2H), 3.78 (s, 3H), 2.07-2.11 (m, 1H), 1.67-1.69 (m, 2H), 1.38-1.43 (m, 2H). LC/MS (ES, m/z): 513 [M+H]+.
    • Example PH-104 Ethyl 2-[3-([6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]methyl)phenoxy]acetate trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00312
  • The title compound was prepared according to the procedure as described in Example PH-103 substituting ethyl 2-bromoacetate for (3-methylphenyl)methanamine in Step 6.
  • 1H NMR (300 MHz, CDCl3) δ: 7.90 (d, J=8.7 Hz, 1H), 7.28-7.31 (m, 1H), 7.20-7.25 (m, 5H), 6.84-6.96 (m, 6H), 6.65-6.67 (m, 2H), 5.60 (s, 1H), 5.42 (s, 2H), 4.60 (s, 2H), 4.25 (dd, J1=6.9 Hz, J2=14.1 Hz, 2H), 2.05-2.10 (m, 1H), 1.66-1.67 (m, 2H), 1.37-1.39 (m, 2H), 1.31 (t, J=6.9 Hz, 3H). LC/MS (ES, m/z): 585 [M+H]+.
    • Example PH-105 4-([6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]methyl)phenol hydrochloride
  • Figure US20190031618A1-20190131-C00313
  • The title compound was prepared according to the procedure as described in Example PH-103 substituting 4-(aminomethyl)phenol for (3-methylphenyl)methanamine in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 7.56 (d, J=8.4 Hz, 1H), 7.31 (d, J=8.4 Hz, 4H), 7.23 (d, J=8.4 Hz, 1H), 7.14 (s, 1H), 7.00-7.04 (m, 6H), 6.75 (d, J=8.4 Hz, 2H), 5.73 (s, 1H), 5.51 (s, 1H), 2.47-2.50 (m, 1H), 1.28-1.39 (m, 4H). LC/MS (ES, m/z): 499 [M+H]+.
    • Example PH-106 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(3-methoxyphenyl)-1H-1,3-benzodiazole hydrochloride
  • Figure US20190031618A1-20190131-C00314
  • The title compound was prepared according to the procedure as described in Example PH-103 substituting 3-methoxyaniline for (3-methylphenyl)methanamine in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 7.56-7.65 (m, 2H), 7.20-7.36 (m, 6H), 7.06-7.15 (m, 6H), 7.00 (s, 1H), 5.76 (s, 1H), 3.85 (s, 1H), 2.11-2.12 (m, 1H), 1.25-1.31 (m, 4H). LC/MS (ES, m/z): 499 [M+H]+.
    • Example PH-107 3-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]phenol hydrochloride
  • Figure US20190031618A1-20190131-C00315
  • Into a 50-mL round-bottom flask, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(3-methoxyphenyl)-1H-1,3-benzodiazole (100 mg, 0.20 mmol, 1.00 equiv) in dichloromethane (10 mL). To the mixture was then added BBr3 (500 mg, 1.99 mmol, 9.95 equiv) dropwise with stirring at 0° C. The resulting solution was stirred for 2 h at room temperature. The resulting mixture was concentrated under vacuum. The pH value of the solution was adjusted to pH 8 with sodium bicarbonate. The resulting solution was extracted with ethyl acetate (3×20 mL) and the organic layers combined, then concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18.5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH3CN (20% CH3CN up to 65% in 8 min); Detector, UV 254 nm to yield a residue. The CH3CN was evaporated and conc. HCl (1 mL) was added. The mixture was lyophilized to yield 3-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]phenol hydrochloride as an off-white solid.
  • 1H NMR (400 MHz, CD3OD) δ: 7.68 (d, J=8.4 Hz, 1H), 7.51 (t, J=11.6 Hz, 1H), 7.30-7.42 (m, 5H), 7.00-7.17 (m, 8H), 5.81 (s, 1H), 2.20-2.23 (m, 1H), 1.35-1.48 (m, 4H). LC/MS (ES, m/z): 485 [M+H]+.
    • Example PH-108 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(4-methoxyphenyl)-1H-1,3-benzodiazole hydrochloride
  • Figure US20190031618A1-20190131-C00316
  • The title compound was prepared according to the procedure as described in Example PH-103 substituting 4-methoxyaniline for (3-methylphenyl)methanamine in Step 1.
  • 1H NMR (400 MHz, CD3OD) δ: 7.56-7.68 (m, 3H), 7.35 (d, J=8.4 Hz, 4H), 7.06-7.21 (m, 8H), 5.84 (s, 1H), 3.84 (s, 3H), 1.94 (m, 1H), 1.15-1.28 (m, 4H).
  • LC/MS (ES, m/z): 499 [M+H]+.
    • Example PH-109 ethyl 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]phenoxy)acetate hydrochloride
  • Figure US20190031618A1-20190131-C00317
    • Step 1: Synthesis of 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]phenol hydrochloride
  • Into a 25-mL round-bottom flask, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-(4-methoxyphenyl)-1H-1,3-benzodiazole (100 mg, 0.20 mmol, 1.00 equiv) in dichloromethane (10 mL). To the mixture was then added BBr3 (500 mg, 1.99 mmol, 9.95 equiv) dropwise with stirring at 0° C. The resulting solution was stirred for 2 h at room temperature. The resulting mixture was concentrated under vacuum. The pH value of the solution was adjusted to pH 8 with sodium bicarbonate. The resulting solution was extracted with ethyl acetate (3×20 mL) and the organic layers combined, then concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18, 5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH3CN (22% CH3CN up to 58% in 8 min); Detector, UV 254 nm to yield a residue. The CH3CN was evaporated and conc. HCl (1 mL) was added. The mixture was lyophilized to yield 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]phenol hydrochloride as an off-white solid. LC/MS (ES, m/z): 521.8 [M+H]+.
    • Step 2: Synthesis of ethyl 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]phenoxy)acetate hydrochloride
  • Into a 25-mL round-bottom flask, was placed 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]phenol (97 mg, 0.20 mmol, 1.00 equiv), potassium carbonate (83 mg, 0.60 mmol, 3.01 equiv) and a solution of BrCH2CO2CH2CH3 (50.1 mg, 0.30 mmol, 1.50 equiv) in N,N-dimethylformamide (5 mL). The resulting solution was stirred for 3 h at room temperature. The resulting solution was diluted with ethyl acetate (50 mL). The resulting mixture was washed with aq. sodium chloride (3×10 mL). The resulting mixture was concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters-2767-1): Column, Sunfire prep C18, 5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH3CN (25% CH3CN up to 60% in 8 min); Detector, UV 254 nm to yield a residue. The CH3CN was evaporated and conc. HCl (1 mL) was added. The mixture was lyophilized to yield ethyl 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]phenoxy)acetate hydrochloride as an off-white solid.
  • 1H NMR (400 MHz, CD3OD) δ: 7.70 (d, J=4.0 Hz, 1H), 7.58 (d, J=8.0 Hz, 2H), 7.39-7.51 (m, 1H), 7.31-7.37 (m, 4H), 7.28 (d, J=4.0 Hz, 2H), 7.06-7.09 (m, 5H), 5.79 (s, 1H), 4.95-5.00 (m, 1H), 4.86-4.91 (m, 1H), 4.22-4.32 (m, 2H), 2.14-2.21 (m, 1H), 1.40-1.42 (m, 4H), 1.26-1.34 (m, 3H). LC/MS (ES, m/z): 571 [M+H]+.
    • Example PH-110 2-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]phenoxy)acetamide hydrochloride
  • Figure US20190031618A1-20190131-C00318
  • The title compound was prepared according to the procedure as described in Example PH-3 substituting ethyl 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)phenoxy)acetate for 4-(4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]piperidin-1-yl)-4-oxobutanoate.
  • 1H NMR (400 MHz, CD3OD) δ: 7.72 (d, J=8.4 Hz, 1H), 7.59 (d, J=9.6 Hz, 2H), 7.41 (d, J=8.4 Hz, 1H), 7.25-7.33 (m, 6H), 7.06-7.12 (m, 5H), 5.79 (s, 1H), 4.66 (s, 2H), 2.16-2.23 (m, 1H), 1.39-1.44 (m, 4H). LC/MS (ES, m/z): 542 [M+H]+.
    • Example PH-111 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexane-1-carboxamide; trifluoroacetic acid
  • Figure US20190031618A1-20190131-C00319
    • Step 1: Synthesis of methyl 4-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-nitrophenyl]amino)cyclohexane-1-carboxylate
  • Into a 250-mL round-bottom flask, was placed methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (3 g, 6.91 mmol, 1.00 equiv), methyl 4-aminocyclohexane-1-carboxylate hydrochloride (1.6 g, 8.26 mmol, 1.20 equiv) and a solution of DIEA (4.47 g, 34.59 mmol, 5.01 equiv) in CH3CN (100 mL). The resulting solution was heated to reflux overnight. The resulting mixture was concentrated under vacuum. The product residue was purified by Flash-Prep-HPLC with the following conditions (IntelFlash-1): Column, silica gel; mobile phase, EA:PE=5:100 increasing to EA:PE=20:100 within 50 min; Detector, UV 254 nm to yield methyl 4-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-nitrophenyl]amino)cyclohexane-1-carboxylate as a yellow solid. LC/MS (ES, m/z): 571 [M+H]+.
    • Step 2: Synthesis of methyl 4-([2-amino-5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]phenyl]amino)cyclohexane-1-carboxylate
  • Into a 250-mL round-bottom flask, was placed methyl 4-([5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-nitrophenyl]amino)cyclohexane-1-carboxylate (2 g, 3.50 mmol, 1.00 equiv) and a solution of Raney Ni (3 g, 1.00 equiv) in methanol (80 mL). H2(g) was then introduced into the resulting mixture. The resulting solution was stirred overnight at room temperature. The solids were filtered out. The resulting mixture was concentrated under vacuum to yield methyl 4-([2-amino-5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]phenyl]amino)cyclohexane-1-carboxylate as a white solid. LC/MS (ES, m/z): 541.5 [M+H]+.
    • Step 3: Synthesis of methyl 4-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexane-1-carboxylate
  • Into a 50-mL round-bottom flask, was placed methyl 4-([2-amino-5-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]phenyl]amino)cyclohexane-1-carboxylate (1.08 g, 1.99 mmol, 1.00 equiv) and a solution of cyclopropanecarbaldehyde (840 mg, 11.98 mmol, 6.01 equiv) in DMSO (10 mL). The resulting solution was stirred overnight at 50° C. The resulting solution was diluted with ethyl acetate (100 mL). The resulting mixture was washed with aq. sodium chloride (3×20 mL). The organic phase was dried over anhydrous sodium sulfate, then concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:2) to yield methyl 4-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexane-1-carboxylate as yellow oil. LC/MS (ES, m/z): 592 [M+H]+.
    • Step 4: Synthesis of 4-[6-[bis(4-chlorophenyl)(carboxy)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexane-1-carboxylic
  • Into a 50-mL round-bottom flask, was placed a solution of methyl 4-[6-[1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexane-1-carboxylate (900 mg, 1.52 mmol, 1.00 equiv) in tetrahydrofuran (10 mL) and a solution of LiOH*H2O (640 mg, 15.25 mmol, 10.02 equiv) in water (10 mL). The resulting solution was stirred overnight at 50° C. The resulting mixture was concentrated under vacuum. The pH value of the solution was adjusted to pH 3 with hydrogen chloride (1 mol/L). The resulting solution was extracted with ethyl acetate (3×50 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum to yield 4-[6-[bis(4-chlorophenyl)(carboxy)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexane-1-carboxylic acid as a yellow solid.
    • Step 5: Synthesis of 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexane-1-carboxylic acid trifluoroacetic acid
  • Into a 100-mL round-bottom flask, was placed a solution of 4-[6-[bis(4-chlorophenyl)(carboxy)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexane-1-carboxylic acid (300 mg, 0.53 mmol, 1.00 equiv) in toluene (10 ml) and DBU (487 mg, 3.20 mmol, 6.00 equiv). The resulting solution was stirred for 3 h at 90° C. The resulting mixture was concentrated under vacuum. The reaction was then quenched by the addition of water (10 mL). The resulting solution was extracted with ethyl acetate (3×10 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters 2767-1): Column, SunFire Prep C18, 5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH3CN (25% CH3CN up to 45% in 9 min); Detector, UV 254 nm to yield 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexane-1-carboxylic acid trifluoroacetic acid as a white solid.
    • Step 6: Synthesis of 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexane-1-carboxamide; trifluoroacetic acid
  • Into a 25-mL round-bottom flask, was placed a solution of 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexane-1-carboxylic acid (110 mg, 0.21 mmol, 1.00 equiv) in N,N-dimethylformamide (10 mL), NH4Cl (56 mg, 1.05 mmol, 5.00 equiv), HATU (97 mg, 0.26 mmol, 1.20 equiv) and DIEA (55 mg, 0.43 mmol, 2.00 equiv). The resulting solution was stirred overnight at room temperature. The reaction was then quenched by the addition of water (10 mL). The resulting solution was extracted with ethyl acetate (3×10 mL) and the organic layers combined, then dried over anhydrous sodium sulfate and concentrated under vacuum. The product residue was purified by Prep-HPLC with the following conditions (Waters 2767-1): Column, SunFire Prep C18, 5 um, 19*100 mm; mobile phase, 0.05% TFA in water and CH3CN (25% CH3CN up to 55% in 10 min); Detector, UV 254 nm to yield 4-[6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1H-1,3-benzodiazol-1-yl]cyclohexane-1-carboxamide; trifluoroacetic acid as a white solid.
  • 1H NMR (300 MHz, CD3OD) δ: 7.75 (s, 1H), 7.63-7.66 (m, 1H), 7.33-7.38 (m, 5H), 7.12-7.18 (m, 4H), 5.90 (s, 1H), 2.55-2.65 (m, 1H), 2.42-2.55 (m, 1H), 2.13-2.42 (m, 6H), 1.73-1.83 (m, 2H), 1.43-1.52 (m, 2H), 1.31-1.40 (m, 2H).
  • LC/MS (ES, m/z): 518 [M+H]+.
    • Example PH-112 2-((4-chlorophenyl)(3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00320
    • Step 1: Synthesis of N-(5-fluoro-2-nitrophenyl)-1-(trifluoromethylsulfonyl)piperidin-4-amine
  • Into a 250-mL round-bottom flask, was placed a solution of 2,4-difluoro-1-nitrobenzene (2.7 g, 16.98 mmol, 1.00 equiv) in CH3CN (60 mL), triethylamine (5.2 g, 51.49 mmol, 3.03 equiv) and 1-(trifluoromethylsulfonyl) piperidin-4-amine hydrochloride (5.5 g, 20.52 mmol, 1.21 equiv). The resulting solution was stirred overnight at 90° C. in an oil bath. The reaction progress was monitored by LCMS. The reaction was then quenched by the addition of water (100 mL). The solids were collected by filtration. The solid was dried in an oven under reduced pressure to yield N-(5-fluoro-2-nitrophenyl)-1-(trifluoromethylsulfonyl)piperidin-4-amine as a yellow solid. LC/MS (ES, m/z): 371 [M+H]+.
    • Step 2: Synthesis of 2-(4-chlorophenyl)-2-(4-nitro-3-(1-(trifluoromethylsulfonyl)piperidin-4-ylamino)phenyl)acetonitrile
  • Into a 500-mL round-bottom flask, was placed a solution of 2-(4-chlorophenyl) acetonitrile (5.4 g, 35.76 mmol, 1.11 equiv) in THF/i-PrOH (200/50 mL) and potassium 2-methylpropan-2-olate (9 g, 80.36 mmol, 2.48 equiv), and the resulting mixture stirred for 10 min at room temperature. To the reaction mixture was then added N-(5-fluoro-2-nitrophenyl)-1-(trifluoromethylsulfonyl)piperidin-4-amine (12 g, 32.35 mmol, 1.00 equiv). The resulting solution was stirred for 1 h at room temperature. The resulting mixture was washed with aq. sodium chloride (1×200 mL). The resulting solution was extracted with ethyl acetate (2×200 mL) and the organic layers combined, then dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:15) to yield 2-(4-chlorophenyl)-2-(4-nitro-3-(1-(trifluoromethylsulfonyl)piperidin-4-ylamino)phenyl)acetonitrile as a reddish-brown solid. LC/MS (ES, m/z): 502 [M+H]+.
    • Step 3: Synthesis of 2-(4-chlorophenyl)-2-(4-nitro-3-(1-(trifluoromethylsulfonyl)piperidin-4-ylamino)phenyl)ethanethioamide
  • Into a 150-mL sealed tube, was placed a solution of 2-(4-chlorophenyl)-2-(4-nitro-3-(1-(trifluoromethylsulfonyl)piperidin-4-ylamino)phenyl)acetonitrile (8.5 g, 16.93 mmol, 1.00 equiv) in ethanol (100 mL) and P2S5 (7.5 g, 33.78 mmol, 2.00 equiv). The resulting solution was stirred overnight at 70° C. in an oil bath. The reaction progress was monitored by LCMS. The reaction mixture was cooled to room temperature with a water/ice bath. The reaction was then quenched by the addition of water/ice (300 mL). The resulting solution was extracted with ethyl acetate (2×200 mL) and the organic layers combined, then dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:5) to yield 2-(4-chlorophenyl)-2-(4-nitro-3-(1-(trifluoromethylsulfonyl)piperidin-4-ylamino)phenyl)ethanethioamide as an orange solid. LC/MS (ES, m/z): 536 [M+H]+.
    • Step 4: Synthesis of N-(5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)-1-(trifluoromethylsulfonyl)piperidin-4-amine
  • Into a 250-mL round-bottom flask, was placed a solution of 2-(4-chlorophenyl)-2-(4-nitro-3-(1-(trifluoromethylsulfonyl) piperidin-4-ylamino) phenyl) ethanethioamide (10 g, 18.66 mmol, 1.00 equiv) in acetic acid (100 mL), 2-bromo-1,1-diethoxyethane (15 g, 76.53 mmol, 4.10 equiv) and water (4 mL). The resulting solution was stirred for 30 min at 100° C. in an oil bath. The reaction progress was monitored by LCMS. The resulting mixture was concentrated under vacuum. The resulting mixture was washed with aq. sodium bicarbonate (1×200 mL). The resulting solution was extracted with ethyl acetate (3×200 mL) and the organic layers combined. The resulting mixture was washed with aq. sodium bicarbonate (1×300 mL). The mixture was dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:15) to N-(5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)-1-(trifluoromethylsulfonyl)piperidin-4-amine as an orange solid. LC/MS (ES, m/z): 560 [M+H]+.
    • Step 5: Synthesis of 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-(trifluoromethylsulfonyl)piperidin-4-yl)benzene-1,2-diamine
  • Into a 250-mL round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of N-(5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)-1-(trifluoromethylsulfonyl)piperidin-4-amine (5 g, 8.93 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (30/30 mL) and Raney Ni (2.5 g). To the resulting mixture was then introduced hydrogen. The resulting solution was stirred overnight at room temperature. The solids were collected by filtration. The resulting mixture was concentrated under vacuum to yield 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-(trifluoromethylsulfonyl)piperidin-4-yl)benzene-1,2-diamine as a green solid. LC/MS (ES, m/z): 530 [M+H]+.
    • Step 6: Synthesis of 2-((4-chlorophenyl)(3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl) methyl)thiazole
  • Into a 50-mL round-bottom flask, was placed 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-(trifluoromethylsulfonyl)piperidin-4-yl)benzene-1,2-diamine (200 mg, 0.38 mmol, 1.00 equiv), triethoxymethane (3 mL) and hydrogen chloride (0.1 mL, con.). The resulting solution was stirred for 4 h at 125° C. in an oil bath. The reaction progress was monitored by LCMS. The resulting mixture was diluted with aq. sodium chloride (20 mL). The resulting solution was extracted with ethyl acetate (3×20 mL) and the organic layers combined, then dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with dichloromethane/methanol (60:1) to yield 2-((4-chlorophenyl)(3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl) methyl)thiazole as a light yellow solid.
  • 1H NMR (300 MHz, CDCl3) δ: 8.02 (s, 1H), 7.79-7.84 (m, 2H), 7.21-7.34 (m, 7H), 5.98 (s, 1H), 4.33-4.41 (m, 1H), 4.18-4.23 (m, 2H), 3.25-3.33 (m, 2H), 2.13-2.32 (m, 4H). LC/MS (ES, m/z): 541[M+H]+.
    • Example PH-113 2-((4-chlorophenyl)(2-methyl-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00321
  • The title compound was prepared according to the procedure as described in Example PH-112 substituting acetaldehyde for triethoxymethane in Step 6.
  • 1H NMR (300 MHz, DMSO) δ: 7.81 (d, J=3.3 Hz, 1H), 7.67 (m, 1H), 7.56 (s, 1H), 7.49 (d, J=8.1 Hz, 1H), 7.37-7.40 (m, 2H), 7.31 (d, J=8.4 Hz, 2H), 7.08-7.12 (m, 1H), 6.16 (s, 1H), 4.61-4.69 (m, 1H), 3.97 (d, J=13.2 Hz, 2H), 3.44-3.52 (m, 2H), 2.58 (s, 3H), 2.25-2.28 (m, 2H), 1.99-2.03 (m, 2H). LC/MS (ES, m/z): 555 [M+H]+.
    • Example PH-114 2-((4-chlorophenyl)(2-ethyl-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00322
  • The title compound was prepared according to the procedure as described in Example PH-112 substituting propionaldehyde for triethoxymethane in Step 6.
  • 1H NMR (300 MHz, CDCl3) δ: 7.85 (s, 1H), 7.74 (d, J=8.1 Hz, 1H), 7.18-7.34 (m, 7H), 5.96 (s, 1H), 4.34-4.42 (m, 1H), 4.189-4.23 (m, 2H), 3.21-3.29 (m, 2H), 2.95-3.03 (m, 2H), 2.43-2.58 (m, 2H), 2.00-2.11 (m, 2H), 1.47 (t, J=7.2 Hz, 3H). LC/MS (ES, m/z): 569 [M+H]+.
    • Example PH-115 2-((4-chlorophenyl)(2-cyclopropyl-3-(1-trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00323
  • The title compound was prepared according to the procedure as described in Example PH-112 substituting cyclopropanecarbaldehyde for triethoxymethane in Step 6.
  • 1H NMR (300 MHz, DMSO-d6) δ: 7.80 (d, J=3.3 Hz, 1H), 7.66 (d, J=3.3 Hz, 1H), 7.57 (s, 1H), 7.45-7.51 (m, 1H), 7.39 (d, J=8.4 Hz, 2H), 7.30 (d, J=8.4 Hz, 2H), 7.08 (d, J=8.4 Hz, 1H), 6.14 (s, 1H), 4.95-5.03 (m, 1H), 3.99 (d, J=13.2 Hz, 2H), 1.05 (d, J=7.8 Hz, 4H). LC/MS (ES, m/z): 581 [M+H]+.
    • Example PH-116 2-(4-chlorophenyl)(2-(pyridin-3-yl)-3-(1-trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00324
  • The title compound was prepared according to the procedure as described in Example PH-112 substituting nicotinaldehyde for triethoxymethane in Step 6.
  • 1H NMR (300 MHz, CDCl3) δ: 8.83 (s, 2H), 8.02 (d, J=8.1 Hz, 1H), 7.80-7.88 (m, 2H), 7.52-7.56 (m, 1H), 7.47 (s, 1H), 7.26-7.36 (m, 4H), 6.01 (s, 1H), 4.43-4.51 (m, 1H), 4.14 (d, J=13.2 Hz, 2H), 3.07-3.16 (m, 2H), 2.52-2.64 (m, 2H), 2.02-2.09 (m, 2H). LC/MS (ES, m/z): 618 [M+H]+.
    • Example PH-117 2-((4-chlorophenyl)(3-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00325
  • The title compound was prepared according to the procedure as described in Example PH-112 substituting 8-(trifluoromethylsulfonyl)-8-aza-bicyclo [3.2.1]octan-3-amine for 1-(trifluoromethylsulfonyl) piperidin-4-amine hydrochloride in Step 1.
  • 1HNMR (300 MHz, DMSO-d6) δ: 8.47 (s, 1H), 7.83 (s, 1H), 7.62-7.82 (m, 2H), 7.34-7.42 (m, 5H), 7.19 (d, J=1.2 Hz, 1H), 6.22 (s, 1H), 4.46-4.58 (m, 3H), 2.60-2.70 (m, 2H), 2.07-2.14 (m, 4H), 1.90 (d, J=10.8 Hz, 2H). LC/MS (ES, m/z): 567 [M+H]+
    • Example YM-1 2-((4-chlorophenyl)(3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00326
    • Step 1: N-(5-fluoro-2-nitrophenyl)-1-((trifluoromethyl)sulfonyl)piperidin-4-amine
  • Into a 250-mL round-bottom flask, was placed a solution of 2,4-difluoro-1-nitrobenzene (2.7 g, 16.98 mmol, 1.00 equiv) in CH3CN (60 mL), triethylamine (5.2 g, 51.49 mmol, 3.03 equiv), 1-(trifluoromethylsulfonyl) piperidin-4-amine hydrochloride (5.5 g, 20.52 mmol, 1.21 equiv). The resulting solution was stirred overnight at 90° C. in an oil bath. The reaction progress was monitored by LCMS. The reaction was then quenched by the addition of water (100 mL). The solids were collected by filtration. The solid was dried in an oven under reduced pressure to yield N-(5-fluoro-2-nitrophenyl)-1-(trifluoromethylsulfonyl)piperidin-4-amine as a yellow solid.
  • LC/MS (ES, m/z): 413 [M+CH3CN+H]+
    • Step 2: 2-(4-chlorophenyl)-2-(4-nitro-3-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)acetonitrile
  • Into a 500-mL round-bottom flask, was placed a solution of 2-(4-chlorophenyl) acetonitrile (5.4 g, 35.76 mmol, 1.11 equiv) in tetrahydrofuran/iPrOH (200/50 mL), potassium 2-methylpropan-2-olate (9 g, 80.36 mmol, 2.48 equiv). The resulting mixture was stirred for 10 min at room temperature, and then N-(5-fluoro-2-nitrophenyl)-1-(trifluoromethylsulfonyl)piperidin-4-amine (12 g, 32.35 mmol, 1.00 equiv) was added. The resulting solution was stirred for 1 h at room temperature. The resulting mixture was washed with aq. sodium chloride (1×200 mL). The resulting solution was extracted with ethyl acetate (2×200 mL) and the organic layers combined and dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:15) to yield 2-(4-chlorophenyl)-2-(4-nitro-3-(1-(trifluoromethylsulfonyl)piperidin-4-ylamino)phenyl)acetonitrile as a reddish-brown solid.
  • LC/MS (ES, m/z): 503 [M+H]+
    • Step 3 2-(4-chlorophenyl)-2-(4-nitro-3-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)ethanethioamide
  • Into a 150-mL sealed tube, was placed a solution of 2-(4-chlorophenyl)-2-(4-nitro-3-(1-(trifluoromethylsulfonyl)piperidin-1-ylamino)phenyl)acetonitrile (8.5 g, 16.93 mmol, 1.00 equiv) in ethanol (100 mL), P2S5 (7.5 g, 33.78 mmol, 2.00 equiv). The resulting solution was stirred overnight at 70° C. in an oil bath. The reaction progress was monitored by LCMS. The reaction mixture was cooled to room temperature with a water/ice bath. The reaction was then quenched by the addition of water/ice (300 mL). The resulting solution was extracted with ethyl acetate (2×200 mL) and the organic layers combined and dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:5) to yield 2-(4-chlorophenyl)-2-(4-nitro-3-(1-(trifluoromethylsulfonyl)piperidin-4-ylamino)phenyl)ethanethioamide as an orange solid.
  • LC/MS (ES, m/z): 537 [M+H]+
    • Step 4 N-(5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)-1-((trifluoromethyl)sulfonyl)piperidin-4-amine
  • Into a 250-mL round-bottom flask, was placed a solution of 2-(4-chlorophenyl)-2-(4-nitro-3-(1-(trifluoromethylsulfonyl) piperidin-4-ylamino) phenyl) ethanethioamide (10 g, 18.66 mmol, 1.00 equiv) in acetic acid (100 mL), 2-bromo-1,1-diethoxyethane (15 g, 76.53 mmol, 4.10 equiv), water (4 mL). The resulting solution was stirred for 30 min at 100° C. in an oil bath. The reaction progress was monitored by LCMS. The resulting mixture was concentrated under vacuum. The resulting mixture was washed with aq. sodium bicarbonate (1×200 mL). The resulting solution was extracted with ethyl acetate (3×200 mL) and the organic layers combined. The resulting mixture was washed with aq. sodium bicarbonate (1×300 mL). The mixture was dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:15) to yield N-(5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)-1-(trifluoromethylsulfonyl)piperidin-4-amine as an orange solid.
  • LC/MS (ES, m/z): 561 [M+H]+
    • Step 5 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)benzene-1,2-diamine
  • Into a 250-mL round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of N-(5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)-1-(trifluoromethylsulfonyl)piperidin-4-amine (5 g, 8.93 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (30/30 mL), Raney Ni (2.5 g). To the above was introduced hydrogen. The resulting solution was stirred overnight at room temperature. The solids were collected by filtration. The resulting mixture was concentrated under vacuum to yield 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-(trifluoromethylsulfonyl)piperidin-4-yl)benzene-1,2-diamine as a green solid.
  • LC/MS (ES, m/z): 531 [M+H]+
    • Step 6 2-((4-chlorophenyl)(1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Into a 50-mL round-bottom flask, was placed 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-(trifluoromethylsulfonyl)piperidin-4-yl)benzene-1,2-diamine (200 mg, 0.38 mmol, 1.00 equiv), triethoxymethane (3 mL), hydrogen chloride (0.1 mL, con.). The resulting solution was stirred for 4 h at 125° C. in an oil bath. The reaction progress was monitored by LCMS. The resulting mixture was diluted with aq. sodium chloride (20 mL). The resulting solution was extracted with ethyl acetate (3×20 mL) and the organic layers combined and dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with dichloromethane/methanol (60:1) to yield 2-((4-chlorophenyl)(3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl) methyl)thiazole as a light yellow solid.
  • 1H NMR (300 MHz, CDCl3) δ: 8.02 (s, 1H), 7.79-7.84 (m, 2H), 7.21-7.34 (m, 7H), 5.98 (s, 1H), 4.33-4.41 (m, 1H), 4.18-4.23 (d, J=13.5 Hz, 2H), 3.25-3.33 (m, 2H), 2.13-2.32 (m, 4H). LC/MS (ES, m/z): 541 [M+H]+
  • The following compounds were prepared in according to the procedure as described in Example YM-1 above, selecting and substituting suitable reactants and reagents, as would be readily recognized by those skilled in the art.
    • Example YM-2 2-((4-chlorophenyl)(2-methyl-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00327
  • 1H NMR (300 MHz, DMSO) δ: 7.81 (d, J=3.3 Hz, 1H), 7.69 (s, 1H), 7.56 (s, 1H), 7.49 (d, J=8.1 Hz, 1H), 7.37-7.40 (m, 2H), 7.31 (d, J=8.4 Hz, 2H), 7.09-7.12 (m, 1H), 6.16 (s, 1H), 4.61-4.69 (m, 1H), 3.97 (d, J=13.2 Hz, 2H), 3.44-3.52 (m, 2H), 2.58 (s, 3H), 2.25-2.28 (m, 2H), 2.00-2.03 (m, 2H). LC/MS (ES, m/z): 555 [M+H]+.
    • Example YM-3 2-((4-chlorophenyl)(2-ethyl-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methylthiazole
  • Figure US20190031618A1-20190131-C00328
  • 1H NMR (300 MHz, CDCl3) δ: 7.84 (s, 1H), 7.74 (d, J=8.4 Hz, 1H), 7.18-7.34 (m, 7H), 5.96 (s, 1H), 4.34-4.42 (m, 1H), 4.19-4.23 (m, 2H), 3.21-3.30 (m, 2H), 2.95-3.03 (m, 2H), 2.44-2.58 (m, 2H), 2.00-2.11 (m, 2H), 1.47 (t, J=7.2 Hz, 3H). LC/MS (ES, m/z): 569 [M+H]+.
    • Example YM-4 2-((4-chlorophenyl)(2-propyl-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00329
  • 1H NMR (300 MHz, CDCl3) δ: 7.85 (s, 1H), 7.72 (d, J=8.4 Hz, 1H), 7.17-7.34 (m, 7H), 5.96 (s, 1H), 4.25-4.45 (m, 1H), 4.19-4.22 (m, 2H), 3.21-3.30 (m, 2H), 2.92 (brm, 2H), 2.49-2.52 (m, 2H), 1.88-2.03 (m, 4H), 1.10 (t, J=7.2 Hz, 3H).
  • LC/MS (ES, m/z): 583 [M+H]+.
    • Example YM-5 2-(4-chlorophenyl)(2-isobutyl-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00330
  • 1H NMR (300 MHz, CDCl3) δ: 7.85 (d, J=3.3 Hz, 1H), 7.72 (d, J=8.1 Hz, 1H), 7.17-7.34 (m, 7H), 5.96 (s, 1H), 4.35-4.41 (m, 1H), 4.20 (d, J=12.6 Hz, 2H), 3.20-3.29 (m, 2H), 2.81 (d, J=7.5 Hz, 2H), 2.46-2.58 (m, 2H), 2.18-2.23 (m, 1H), 1.97-2.01 (m, 2H), 1.07 (d, J=3.6 Hz, 6H). LC/MS (ES, m/z): 597 [M+H]+.
    • Example YM-6 2-((4-chlorophenyl)(2-cyclopropyl-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00331
  • 1H NMR (300 MHz, DMSO) δ: 7.81 (d, J=3.3 Hz, 1H), 7.66 (d, J=3.3 Hz, 1H), 7.57 (brs, 1H), 7.49 (d, J=9.6 Hz, 1H), 7.38 (d, J=8.4 Hz, 2H), 7.31 (d, J=8.4 Hz, 2H), 7.09 (d, J=8.4 Hz, 1H), 6.14 (s, 1H), 4.95-5.03 (m, 1H), 4.00 (d, J=13.2 Hz, 2H), 3.47-3.55 (m, 2H), 2.28-2.35 (m, 3H), 2.01-2.05 (m, 2H), 1.03-1.06 (m, 4H). LC/MS (ES, m/z) 581 [M+H]+.
    • Example YM-7 2-((4-chlorophenyl)(2-cyclobutyl-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00332
  • 1H NMR (300 MHz, DMSO) δ: 7.81 (d, J=3.3 Hz, 1H), 7.66 (d, J=3.3 Hz, 1H), 7.55 (d, J=8.4 Hz, 2H), 7.30-7.40 (m, 4H), 7.11 (d, J=8.4 Hz, 1H), 6.17 (s, 1H), 4.52-4.55 (m, 1H), 3.88-3.97 (m, 3H), 3.49-3.54 (m, 2H), 2.37-2.50 (m, 4H), 2.28-2.27 (m, 2H), 2.05-2.08 (m, 1H), 1.90-1.94 (m, 3H). LC/MS (ES, nm/z): 595 [M+H]+.
    • Example YM-8 2-((4-chlorophenyl)(2-cyclopentyl-3-(1-(trinfluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00333
  • 1H NMR (300 MHz, CDCl3) δ: 7.88 (m, 1H), 7.73 (d, J=8.4 Hz, 1H), 7.14-7.40 (m, 7H), 5.95 (s, 1H), 4.41-4.49 (m, 1H), 4.20 (d, J=13.2 Hz, 2H), 3.20-3.28 (m, 3H), 2.46-2.57 (m, 2H), 2.07-2.12 (m, 4H), 1.91-2.01 (m, 4H), 1.62-1.81 (m, 2H). LC/MS (ES, nm/z): 609 [M+H]+.
    • Example YM-9 2-((4-chlorophenyl)(2-(4-chlorophenyl)-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-ylmethyl)thiazole
  • Figure US20190031618A1-20190131-C00334
  • LC/MS (ES, m/z): 651 [M+H]+.
    • Example YM-10 2-((4-chlorophenyl)(2-(pyridin-2-yl)-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00335
  • 1H NMR (300 MHz, DMSO) δ: 8.75 (d, J=4.2 Hz, 1H), 8.15-8.17 (m, 1H), 8.03-8.05 (m, 1H), 7.84 (s, 1H), 7.68-7.75 (m, 3H), 7.54-7.58 (m, 1H), 7.34-7.43 (m, 4H), 7.24-7.26 (d, J=8.4 Hz, 1H), 6.26 (s, 1H), 5.58-5.66 (m, 1H), 3.97 (d, J=13.2 Hz, 2H), 3.40-3.44 (m, 2H), 2.40-2.50 (m, 2H), 2.10-2.13 (m, 2H). LC/MS (ES, m/z): 618 [M+H]+.
    • Example YM-11 2-(4-chlorophenyl)(2-pyridin-3-yl)-3-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00336
  • 1H NMR (300 MHz, CDCl3) δ: 8.83 (s, 2H), 8.02 (d, J=8.1 Hz, 1H), 7.80-7.88 (m, 2H), 7.52-7.56 (m, 1H), 7.47 (s, 1H), 7.26-7.36 (m, 6H), 6.01 (s, 1H), 4.43-4.51 (m, 1H), 4.14 (d, J=13.2 Hz, 2H), 3.07-3.16 (m, 2H), 2.52-2.64 (m, 2H), 2.02-2.09 (m, 2H). LC/MS (ES, m/z): 618 [M+H]+.
    • Example YM-12 2-((4-chlorophenyl)(2-pyridin-4-yl)-3-(1-trifluoromethylsulfonyl)piperdin-4-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00337
  • LC/MS (ES, m/z): 618 [M+H]+.
    • Example YM-13 Ethyl 6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole-2-carboxylate
  • Figure US20190031618A1-20190131-C00338
  • LC/MS (ES, m/z): 613 [M+H]+.
    • Example YM-14 2-((4-chlorophenyl)(3-(8-trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00339
    • Step 1 N-(5-fluoro-2-nitrophenyl)-8-((trifluoromethyl)sulfonyl)-8-azabicyclo[3.2.1]octan-3-amine
  • Into a 500-mL round-bottom flask, was placed a solution of 2,4-difluoro-1-nitrobenzene (8.4 g, 52.83 mmol, 1.00 equiv) in CH3CN (250 mL), 8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-amine (15 g, 58.14 mmol, 1.10 equiv), triethylamine (16 g, 158.42 mmol, 3.00 equiv). The resulting solution was stirred overnight at 90° C. in an oil bath. The reaction progress was monitored by LCMS. The reaction was then quenched by the addition of brine (200 mL). The resulting solution was extracted with ethyl acetate (2×200 mL) and the organic layers combined and dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with dichloromethane/methanol to yield N-(5-fluoro-2-nitrophenyl)-8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-amine as a yellow solid.
  • LC/MS (ES, m/z): 398 [M+H]+
    • Step 2 2-(4-chlorophenyl)-2-(4-nitro-3-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-ylamino)phenyl)acetonitrile
  • Into a 500-mL round-bottom flask, was placed a solution of 2-(4-chlorophenyl)acetonitrile (3.6 g, 23.84 mmol, 1.11 equiv) in tetrahydrofuran/iPrOH (200/40 mL), potassium 2-methylpropan-2-olate (6 g, 53.57 mmol, 2.50 equiv), stirred for 10 min. To the mixture was then added N-(5-fluoro-2-nitrophenyl)-8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.]octan-3-amine (8.5 g, 21.41 mmol, 1.00 equiv). The resulting solution was stirred for 30 min at room temperature. The resulting mixture was poured into water (200 mL), and the pH of the mixture adjusted to pH 7 with 2 M HCl. The resulting solution was extracted with ethyl acetate (2×200 mL) and the organic layers combined and dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:15) to yield 2-(4-chlorophenyl)-2-(4-nitro-3-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-ylamino)phenyl)acetonitrile as a yellow solid
  • LC/MS (ES, m/z): 529 [M+H]+
    • Step 3 2-(4-chlorophenyl)-2-(4-nitro-3-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-ylamino)phenyl)ethanethioamide
  • Into a 150-mL sealed tube, was placed a solution of 2-(4-chlorophenyl)-2-(4-nitro-3-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-ylamino)phenyl)acetonitrile (9 g, 17.05 mmol, 1.00 equiv) in ethanol (100 mL), P2S5 (11.3 g, 50.90 mmol, 2.99 equiv). The resulting solution was stirred overnight at 70° C. in an oil bath. The reaction progress was monitored by LCMS. The reaction mixture was cooled to room temperature with a water/ice bath. The reaction was then quenched by the addition of water/ice (200 mL). The resulting solution was extracted with ethyl acetate (2×200 mL) and the organic layers combined and dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with DCM/MeOH (60:1) to yield 2-(4-chlorophenyl)-2-(4-nitro-3-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-ylamino)phenyl)ethanethioamide as a yellow solid.
  • LC/MS (ES, m/z): 563 [M+H]+
    • Step 4 N-(5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)-8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-amine
  • Into a 250-mL round-bottom flask, was placed a solution of 2-(4-chlorophenyl)-2-(4-nitro-3-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-ylamino)phenyl)ethanethioamide (9 g, 16.01 mmol, 1.00 equiv) in acetic acid (100 mL), 2-bromo-1,1-diethoxyethane (12.5 g, 63.78 mmol, 3.98 equiv), water (4 mL). The resulting solution was stirred for 30 min at 100° C. in an oil bath. The reaction progress was monitored by LCMS. The resulting mixture was concentrated under vacuum. The reaction was then quenched by the addition of aq. sodium chloride (200 mL). The resulting solution was extracted with ethyl acetate (3×200 mL) and the organic layers combined. The resulting mixture was washed with aq. sodium bicarbonate (1×300 mL). The mixture was dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:15) to yield N-(5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)-8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-amine as an orange solid.
  • LC/MS (ES, m/z): 587 [M+H]+
    • Step 5 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-yl)benzene-1,2-diamine
  • Into a 250-mL round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of N-(5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)-8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-amine (5.3 g, 9.04 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (30/30 mL), Raney Ni (2.5 g). To the resulting mixture was introduced hydrogen. The resulting solution was stirred overnight at room temperature. The reaction progress was monitored by LCMS. The solids were filtered out. The resulting mixture was concentrated under vacuum to yield 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.]octan-3-yl)benzene-1,2-diamine as a green solid.
  • LC/MS (ES, m/z): 557 [M+H]+
    • Step 6 2-((4-chlorophenyl)(3-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Into a 50-mL round-bottom flask, was placed 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-yl)benzene-1,2-diamine (200 mg, 0.36 mmol, 1.00 equiv), triethoxymethane (4 mL), hydrogen chloride (0.5 mL). The resulting solution was stirred for 4 h at 120° C. in an oil bath. The reaction progress was monitored by LCMS. The reaction was then quenched by the addition of brine (20 mL). The resulting solution was extracted with ethyl acetate and the organic layers combined and dried over anhydrous sodium sulfate. The residue was purified by TLC method with dichloromethane/methanol (100:1) to yield 2-((4-chlorophenyl)(3-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole as a yellow solid.
  • 1H NMR (300 MHz, DMSO) δ: 8.47 (s, 1H), 7.83 (s, 1H), 7.62-7.82 (m, 2H), 7.33-7.42 (m, 5H), 7.17-7.20 (m, 1H), 6.22 (s, 1H), 4.47-4.58 (m, 3H), 2.60-2.70 (m, 2H), 2.07-2.14 (m, 4H), 1.88-1.92 (m, 2H). LC/MS (ES, m/z): 567 [M+H]+.
  • The following compounds were prepared according to the procedure as described in Example YM-14 above, selecting and substituting suitable reactants and reagents, as would be readily recognized by those skilled in the art.
    • Example YM-15 2-((4-chlorophenyl)(2-ethyl-3-(8-trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00340
  • LC/MS (ES, m/z): 595 [M+H]+.
    • Example YM-16 2-((4-chlorophenyl)(2-(pyridin-3-yl)-3-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-yl)-3H-benzo[d]imidazol-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00341
  • LC/MS (ES, m/z): 644 [M+H]+.
    • Example YM-17 2-((4-chlorophenyl)(2-(pyridin-4-yl)-3-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-yl)-3H-benzo[d]imidazo-5-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00342
  • LC/M (E, m/z): 644 [M+H]+.
    • Example YM-18 methyl6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1-(8-(trifluoromethylsulfonyl)-8-aza-bicyclo[3.2.1]octan-3-yl)-1H-benzo[d]imidazole-2-carboxylate
  • Figure US20190031618A1-20190131-C00343
  • 1H NMR (300 MHz, DMSO) δ: 7.87 (d, J=3.3 Hz, 1H), 7.72-7.79 (m, 2H), 7.37-7.45 (m, 5H), 7.31 (d, J=9.0 Hz, 1H), 6.35 (s, 1H), 5.60 (brm, 1H), 4.48-4.52 (m, 2H), 3.92 (s, 3H), 2.65-2.73 (m, 2H), 2.19 (brm, 2H), 1.76-1.98 (m, 4H).
  • LC/MS (ES, m/z): 625 [M+H]+.
    • Example YM-19 ethyl 3-(6-((4-chlorophenyl W)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Figure US20190031618A1-20190131-C00344
    • Step 1 ethyl 3-amino-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Into a 1000-mL round-bottom flask, was placed a solution of Sm (19.7 mg, 100.00 mmol, 1.00 equiv) in ethanol/NH3 (500 mL), Ti(OiPr)4 (60 mL, 200 mmol, 2.00 equiv), stirred for overnight at room temperature. Then added NaBH4 (6 g, 150.00 mmol, 1.50 equiv). The resulting solution was allowed to react, with stirring, for an additional 4 h at room temperature. The resulting solution was diluted with of 2 M NH3/H2O (500 mL). The solids were filtered out, washed with ethyl acetate (500 mL). The aqueous solution was extracted with ethyl acetate (3×500 mL) and the organic layers combined. The pH value of the solution was adjusted to 3-4 with hydrogen chloride (1 M). The aqueous phase was collected, and potassium hydroxide (2 M) was employed to adjust the pH to 10. The resulting solution was extracted with ethyl acetate (3×500 mL) of ethyl acetate and the organic layers combined and dried over anhydrous sodium sulfate and concentrated under vacuum to yield ethyl 3-amino-8-azabicyclo[3.2.1]octane-8-carboxylate as a white solid.
  • LC/MS (ES, m/z) 199 [M+H]+.
    • Step 2 ethyl 3-((5-fluoro-2-nitrophenyl)amino)-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Into a 500-mL round-bottom flask, was placed a solution of 2,4-difluoro-1-nitrobenzene (13.29 g, 83.58 mmol, 1.00 equiv) in CH3CN (350 mL), ethyl 3-amino-8-azabicyclo[3.2.1]octane-8-carboxylate (18.2 g, 91.92 mmol, 1.10 equiv), triethylamine (18.6 g, 184.16 mmol, 2.20 equiv). The resulting solution was stirred overnight at 90° C. The resulting mixture was concentrated under vacuum. The residue was dissolved in dichloromethane (500 mL). The resulting mixture was washed with sodium bicarbonate (1×100 mL) and brine (1×100 mL). The mixture was dried over anhydrous sodium sulfate and concentrated. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:50-1:10) to yield ethyl 3-((5-fluoro-2-nitrophenyl)amino)-8-azabicyclo[3.2.]octane-8-carboxylate as a yellow solid.
  • LC/MS (ES, m/z) 338 [M+H]+.
    • Step 3 2-(3-((8-butyryl-8-azabicyclo[3.2.1]octan-3-yl)amino)-4-nitrophenyl)-2-(4-chlorophenyl)acetonitrile
  • Into a 1000-mL round-bottom flask, was placed a solution of ethyl 3-((5-fluoro-2-nitrophenyl)amino)-8-azabicyclo[3.2.1]octane-8-carboxylate (25.9 g, 76.85 mmol, 1.00 equiv) in tetrahydrofuran/i-PrOH (760/190 mL), 2-(4-chlorophenyl)acetonitrile (12.8 g, 84.53 mmol, 1.10 equiv), t-BuOK (21.52 g, 192.14 mmol, 2.50 equiv). The resulting solution was stirred for 30 min at room temperature. The resulting solution was diluted with water (400 mL). The resulting solution was extracted with dichloromethane (3×600 mL) and the organic layers combined. The resulting mixture was washed with water (2×100 mL) and brine (1×100 mL). The mixture was dried over anhydrous sodium sulfate and concentrated. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:20-1:5) to yield of 2-(3-((8-butyryl-8-azabicyclo[3.2.1]octan-3-yl)amino)-4-nitrophenyl)-2-(4-chlorophenyl)acetonitrile as a yellow solid.
  • LC/MS (ES, m/z) 467 [M+H]+.
    • Step 4 ethyl 3-((5-(2-amino-1-(4-chlorophenyl)-2-thioxoethyl)-2-nitrophenyl)amino)-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Into a 250-mL sealed tube, was placed a solution of 2-(3-((8-butyryl-8-azabicyclo[3.2.1]octan-3-yl)amino)-4-nitrophenyl)-2-(4-chlorophenyl)acetonitrile (14.5 g, 30.98 mmol, 1.00 equiv) in ethanol (150 mL), P2S5 (9 g, 40.49 mmol, 2.00 equiv). The resulting solution was stirred overnight at 70° C. The resulting solution was diluted with water (100 mL). The resulting solution was extracted with ethyl acetate (3×250 mL) and the organic layers combined. The resulting mixture was washed with water (2×50 mL) and brine (50 mL). The mixture was dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:20-1:5) to yield ethyl 3-((5-(2-amino-1-(4-chlorophenyl)-2-thioxoethyl)-2-nitrophenyl)amino)-8-azabicyclo[3.2.1]octane-8-carboxylate as a yellow solid.
  • LC/MS (ES, m/z) 503 [M+H]+.
    • Step 5 ethyl 3-((5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)amino)-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Into a 500-mL round-bottom flask, was placed a solution of ethyl 3-((5-(2-amino-1-(4-chlorophenyl)-2-thioxoethyl)-2-nitrophenyl)amino)-8-azabicyclo[3.2.1]octane-8-carboxylate (13.5 g, 26.89 mmol, 1.00 equiv) in H2O/HOAc (50/150 mL), 2-bromo-1,1-diethoxyethane (21 g, 106.60 mmol, 4.00 equiv). The resulting solution was stirred for 30 min at 100° C. The resulting solution was diluted with water (250 mL). The resulting solution was extracted with ethyl acetate (3×300 mL) and the organic layers combined. The resulting mixture was washed with sodium bicarbonate (3×100 mL) and brine (1×100 mL). The mixture was dried over anhydrous sodium sulfate. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:20-1:5) to yield ethyl 3-((5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)amino)-8-azabicyclo[3.2.1]octane-8-carboxylate as a yellow solid.
  • LC/MS (ES, m/z) 527 [M+H]+.
    • Step 6 ethyl 3-((2-amino-5-((4-chlorophenyl)(thiazol-2-yl)methyl)phenyl)amino)-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Into a 250-mL round-bottom flask, was placed a solution of ethyl 3-((5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)amino)-8-azabicyclo[3.2.1]octane-8-carboxylate (9 g, 17.11 mmol, 1.00 equiv) in tetrahydrofuran/MeOH (80/80 mL), RaNi (3 g, 3.00 equiv). To the above hydrogen gas was bubbled in. The resulting solution was stirred overnight at room temperature. The solids were filtered out. The resulting mixture was concentrated under vacuum to yield ethyl 3-((2-amino-5-((4-chlorophenyl)(thiazol-2-yl)methyl)phenyl)amino)-8-azabicyclo[3.2.1]octane-8-carboxylate as a yellow solid.
  • LC/MS (ES, m/z) 497 [M+H]+.
    • Step 7 ethyl 3-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Into a 10-mL round-bottom flask, was placed ethyl 3-((2-amino-5-((4-chlorophenyl)(thiazol-2-yl)methyl)phenyl)amino)-8-azabicyclo[3.2.]octane-8-carboxylate (250 mg, 0.50 mmol, 1.00 equiv), trimethoxymethane (3 ml, 4.00 equiv), hydrogen chloride (0.02 ml). The resulting solution was heated to reflux for 6 hr. The resulting solution was diluted with water (20 mL). The resulting solution was extracted with ethyl acetate (3×50 mL) and the organic layers combined. The resulting mixture was washed with water (3×30 mL) and brine (30 mL). The mixture was dried over anhydrous sodium sulfate and concentrated. The residue was purified by TLC method with DCM:MeOH=50:1 to yield ethyl 3-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carboxylate as a white solid.
  • 1H NMR (400 MHz, DMSO) δ: 8.42 (s, 1H), 7.82 (d, J=2.4 Hz, 1H), 7.67 (d, J=2.7 Hz, 1H), 7.62 (d, J=6.3 Hz, 1H), 7.34-7.41 (m, 5H), 7.16-7.18 (d, J=6.3 Hz, 1H), 6.19 (s, 1H), 4.35-4.39 (m, 1H), 4.30 (brm, 2H), 4.06-4.12 (m, 2H), 2.50-2.55 (m, 2H), 1.89-1.96 (m, 4H), 1.66-1.70 (m, 2H), 1.21 (t, J=7.2 Hz, 3H).
  • LC/MS (ES, m/z): 507 [M+H]+.
  • The following compounds were prepared according to the procedure as described in Example YM-19 above, selecting and substituting suitable reactants and reagents, as would be readily recognized by those skilled in the art.
    • Example YM-20 ethyl 3-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-ethyl-1H-benzo[d]imidazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Figure US20190031618A1-20190131-C00345
  • LC/MS (ES, m/z): 535 [M+H]+.
    • Example YM-21 ethyl 3-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-propyl-1H-benzo[d]imidazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Figure US20190031618A1-20190131-C00346
  • LC/MS (ES, m/z): 549 [M+H]+.
    • Example YM-22 ethyl 3-(6-f (4-chlorophenyl)(thiazol-2-yl)methyl)-2-isopropyl-1H-benzo[d]imidazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Figure US20190031618A1-20190131-C00347
  • LC/MS (ES, m/z): 549 [M+H]+.
    • Example YM-23 ethyl 3-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Figure US20190031618A1-20190131-C00348
  • LC/MS (ES, m/z): 547 [M+H]+.
    • Example YM-24 ethyl 3-(2-(4-chlorophenyl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Figure US20190031618A1-20190131-C00349
  • LC/MS (ES, m/z): 617 [M+H]+.
    • Example YM-25 ethyl 3-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-(pyridin-3-yl)-1H-benzo[d]imidazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carboxylate
  • Figure US20190031618A1-20190131-C00350
  • LC/MS (ES, m/z): 584 [M+H]+.
    • Example YM-26 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole, Compound #
  • Figure US20190031618A1-20190131-C00351
    • Step 1 1-(trifluoromethane)sulfonylpiperidin-4-amine hydrochloride
  • Into a 1-L round-bottom flask, was placed tert-butyl N-[1-(trifluoromethane)sulfonylpiperidin-4-yl]carbamate (70 g, 210.63 mmol, 1.00 equiv), 1,4-dioxane (200 mL), hydrogen chloride (100 mL, 3.00 equiv, 6M). The resulting solution was stirred overnight at 60° C. in an oil bath. The resulting mixture was concentrated under vacuum. The resulting residue was purified by re-crystallization from DCM to yield 1-(trifluoromethane)sulfonylpiperidin-4-amine hydrochloride as a light brown solid.
  • LC/MS (ES, m/z) 233 [M−HCl+H]+
    • Step 2 N-(5-bromo-2-nitrophenyl)-1-(trifluoromethane)sulfonylpiperidin-4-amine
  • Into a 500-mL round-bottom flask, was placed a solution of 1-(trifluoromethane)sulfonylpiperidin-4-amine hydrochloride (13.3 g, 49.50 mmol, 1.00 equiv) in CH3CN (mL), 4-bromo-2-fluoro-1-nitrobenzene (10 g, 45.46 mmol, 1.00 equiv), triethylamine (14.5 g, 143.29 mmol, 3.20 equiv). The resulting solution was stirred for 1 overnight at 90° C. The solids were collected by filtration to yield N-(5-bromo-2-nitrophenyl)-1-(trifluoromethane)sulfonylpiperidin-4-amine as a yellow solid.
  • LC/MS (ES, m/z) 434 [M+H]+.
    • Step 3 5-bromo-1-N-[1-(trifluoromethane)sulfonylpiperidin-4-yl]benzene-1,2-diamine
  • Into a 500-mL round-bottom flask, was placed N-(5-bromo-2-nitrophenyl)-1-(trifluoromethane)sulfonylpiperidin-4-amine (18 g, 41.65 mmol, 1.00 equiv), methanol (100 mL), tetrahydrofuran (200 mL), Ni (9 g). To the resulting mixture was introduced hydrogen. The resulting solution was stirred for 1 overnight at room temperature. The solids were filtered out. The resulting mixture was concentrated under vacuum to yield 5-bromo-1-N-[1-(trifluoromethane)sulfonylpiperidin-4-yl]benzene-1,2-diamine as brown oil.
  • LC/MS (ES, m/z) 402 [M+H]+.
    • Step 4 N-(4-bromo-2-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)cyclopropanecarboxamide
  • Into a 250-mL round-bottom flask, was placed 5-bromo-1-N-[1-(trifluoromethane)sulfonylpiperidin-4-yl]benzene-1,2-diamine (7 g, 17.40 mmol, 1.00 equiv), N,N-dimethylformamide (100 mL), HATU (8.581 g, 22.57 mmol, 1.30 equiv), DIEA (4.481 g, 34.67 mmol, 1.99 equiv), cyclopropanecarboxylic acid (1.643 g, 19.08 mmol, 1.10 equiv). The resulting solution was stirred overnight at room temperature. The reaction progress was monitored by LCMS. The reaction was then quenched by the addition of water (500 mL). The resulting solution was extracted with ethyl acetate (3×300 mL) and the organic layers combined and dried over anhydrous sodium sulfate. The solids were filtered out. The resulting mixture was concentrated under vacuum to yield of N-(4-bromo-2-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)cyclopropanecarboxamide as a brown solid.
  • LC/MS (ES, m/z) 470 [M+H]+.
    • Step 5 6-bromo-2-cyclopropyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazole
  • Into a 250-mL round-bottom flask, was placed N-(4-bromo-2-[[1-(trifluoromethane)sulfonylpiperidin-4-yl]amino]phenyl)cyclopropanecarboxamide (7.9 g, 16.80 mmol, 1.00 equiv), CF3COOH (100 mL). The resulting solution was stirred overnight at 120° C. The resulting mixture was concentrated under vacuum. The resulting solution was diluted with ethyl acetate (200 mL). The resulting mixture was washed with 30% NaHCO3 (3×100 mL). The resulting mixture was washed with sodium chloride (100 mL). The mixture was dried over anhydrous sodium sulfate. The solids were filtered out. The resulting mixture was concentrated under vacuum. The resulting residue was re-crystallized from ethyl acetate in the ratio of 1:10 to yield 6-bromo-2-cyclopropyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazole as a pink solid.
  • LC/MS (ES, m/z) 452 [M+H]+.
    • Step 6 bis(4-chlorophenyl)(2-cyclopropyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazol-6-yl)methanol
  • Into a 250-mL 3-necked-round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed 6-bromo-2-cyclopropyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazole (6 g, 13.27 mmol, 1.00 equiv), tetrahydrofuran (100 mL), n-BuLi (8 mL, 1.50 equiv, 2.5M) dropwise with stirring at −78° C. The resulting solution was stirred for 0.5 h at −78° C. Then bis(4-chlorophenyl)methanone (3.973 g, 15.82 mmol, 1.19 equiv) was added dropwise with stirring at −78° C. The resulting solution was stirred for 0.5 h at −78° C., then with stirring, overnight at room temperature. The reaction was then quenched by the addition of water (300 mL). The resulting solution was extracted with ethyl acetate (3×300 mL) and the organic layers combined and dried over anhydrous sodium sulfate. The solids were filtered out. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:3) to yield bis(4-chlorophenyl)([2-cyclopropyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazol-6-yl])methanol as a white solid.
  • LC/MS (ES, m/z) 624 [M+H]+.
    • Step 7 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazole
  • Into a 250-mL round-bottom flask, was placed bis(4-chlorophenyl)([2-cyclopropyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazol-6-yl])methanol (5 g, 8.01 mmol, 1.00 equiv), dichloromethane (100 mL), Et3SiH (3.723 g, 32.02 mmol, 4.00 equiv). This was followed by the addition of CF3COOH (22.87 g, 200.58 mmol, 25.06 equiv) dropwise with stirring. The resulting solution was stirred for 2 h at room temperature. The reaction progress was monitored by LCMS. The reaction was then quenched by the addition of water (500 mL). The resulting solution was extracted with ethyl acetate (3×300 mL) and the organic layers combined and dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:5) to yield 6-[bis(4-chlorophenyl)methyl]-2-cyclopropyl-1-[1-(trifluoromethane)sulfonylpiperidin-4-yl]-1H-1,3-benzodiazole as a white solid.
  • 1H NMR (300 MHz, DMSO) δ: 7.46 (d, J=8.4 Hz, 1H), 7.38 (d, J=8.4 Hz, 4H), 7.31 (brs, 1H), 7.14 (d, J=8.4 Hz, 4H), 6.88 (d, J=8.4 Hz, 1H), 5.82 (s, 1H), 4.94-4.98 (m, 1H), 3.95-3.99 (m, 2H), 3.46-3.55 (m, 2H), 2.27-2.33 (m, 3H), 2.00-2.04 (m, 2H), 1.04-1.07 (m, 4H). LC/MS (ES, m/z): 608 [M+H]+. The following compound was prepared according to the procedure as described in Example YM-26 above, selecting and substituting suitable reactants and reagents, as would be readily recognized by those skilled in the art.
    • Example YM-27 6-(bis(4-chlorophenyl)methyl)-2-ethyl-1-(1-(trifluoromethylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole hydrochloride
  • Figure US20190031618A1-20190131-C00352
  • 1H NMR (300 MHz, DMSO) δ: 7.79 (d, J=8.4 Hz, 2H), 7.43 (d, J=8.4 Hz, 4H), 7.28 (d, J=8.4 Hz, 1H), 7.16 (d, J=8.4 Hz, 4H), 6.00 (s, 1H), 4.95 (brm, 1H), 3.99-4.06 (m, 2H), 3.49-3.52 (m, 2H), 3.21-3.28 (m, 2H), 2.29 (brm, 2H), 2.15-2.19 (m, 2H), 1.14 (t, J=7.5 Hz, 3H). LC/MS (ES, m/z): 596 [M−HCl+H]+.
    • Example BZ-1 ((4R,5R)-5-(hydroxymethyl)-2,2-dimethyl-1, 3-dioxolan-4-yl)methyl 4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate; Compound #102
  • Figure US20190031618A1-20190131-C00353
    • STEP A: (4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)(1H-imidazol-1-yl)methanone
  • A solution of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(piperidin-4-yl)-1H-benzo[d]imidazole (106 mg, 0.18 mmol), 1,1′-carbonyldiimidazole (44 mg, 0.27 mmol) and Et3N (0.075 mL, 0.54 mmol) in THF (3 mL) was stirred at room temperature overnight. The resulting mixture was then diluted with EtOAc and washed with aq. NaHCO3 and aqueous NaCl. The organic layer was dried over Na2SO4 and concentrated to yield (4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)(1H-imidazol-1-yl)methanone.
    • STEP B: ((4R,5R)-5-(hydroxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl)methyl 4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • A mixture of (4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)(1H-imidazol-1-yl)methanone (60 mg, 0.105 mmol), (−)-2,3-O-isopropylidene-D-threitol (34 mg, 0.21 mmol) and Cs2CO3 (34 mg, 0.105 mmol) in DMF (2 mL) was stirred at room temperature overnight. The reaction mixture was diluted with H2O and filtered. The solid was collected and purified by chromatography (silica gel column, 2% MeOH/CH2Cl2) to yield ((4R,5R)-5-(hydroxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl)methyl 4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate.
    • STEP C: ((4R,5R)-5-(hydroxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl)methyl 4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • A solution of ((4R,5R)-5-(hydroxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl)methyl 4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate (30 mg, 0.045 mmol) in TFA (1 mL) and H2O (1 mL) was stirred at room temperature for 3 hours. The mixture was concentrated. The resulting residue was diluted with EtOAc and washed with aq NaHCO3 and aq NaCl. The organic solution was dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 6% MeOH/CH2Cl2) to yield ((4R,5R)-5-(hydroxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl)methyl 4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate.
  • 1H NMR (CHLOROFORM-d) Shift: 7.58 (d, J=8.6 Hz, 1H), 7.19-7.36 (m, 4H), 6.95-7.18 (m, 5H), 6.88 (dd, J=8.3, 1.3 Hz, 1H), 5.61 (s, 1H), 4.50-4.70 (m, 1H), 4.31 (br d, J=10.6 Hz, 4H), 3.88-4.00 (m, 1H), 3.63-3.74 (m, 1H), 2.95 (br s, 2H), 2.32 (br s, 2H), 1.85-2.03 (m, 3H), 1.75 (br s, 2H), 1.06-1.24 (m, 4H). MS: 624.2 (M+H+).
    • Example BZ-2 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)phenol: Compound #90
  • Figure US20190031618A1-20190131-C00354
  • To a solution of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(piperidin-4-yl)-1H-benzo[d]imidazole (100 mg, 0.17 mmol) and 3-hydroxy-benzaldehyde (31 mg, 0.25 mmol) in 1,2-dichloroethane (3 mL) at room temperature was added acetic acid (0.15 mL) followed by sodium triacetoxyborohydride (72 mg, 0.34 mmol). The reaction was stirred at room temperature for 6 hours. To the mixture was then added additional 3-hydroxy-benzaldehyde (31 mg, 0.25 mmol), acetic acid (0.15 mL), and sodium triacetoxyborohydride (72 mg, 0.34 mmol). The reaction was stirred at room temperature overnight before it was then quenched with aq NaHCO3. The resulting mixture was extracted with EtOAc, and the organic layer was washed with aq NaCl, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 3% MeOH/CH2Cl2) to yield 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)methyl)phenol.
  • 1H NMR (CHLOROFORM-d) Shift: 7.54 (d, J=8.1 Hz, 1H), 7.17-7.31 (m, 6H), 7.00 (d, J=8.6 Hz, 4H), 6.82-6.91 (m, 2H), 6.76 (dd, J=8.1, 2.5 Hz, 2H), 5.54 (s, 1H), 4.65-4.65 (m, 1H), 4.40-4.49 (m, 1H), 3.53 (s, 2H), 3.10 (br d, J=11.6 Hz, 2H), 2.42-2.56 (m, 2H), 2.18 (br t, J=11.1 Hz, 2H), 1.90-2.08 (m, 1H), 1.84 (br d, J=10.1 Hz, 2H), 1.11-1.19 (m, 2H), 1.00-1.11 (m, 2H). MS: 581.8 (M+H+).
    • Example BZ-3 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(prop-2-yn-1-yl)piperidin-4-yl)-1H-benzo[d]imidazole; Compound #76
  • Figure US20190031618A1-20190131-C00355
  • A mixture of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(piperidin-4-yl)-1H-benzo[d]imidazole (200 mg, 0.34 mmol), propargyl bromide (80% in toluene, 0.057 mL, 0.51 mmol) and K2CO3 (94 mg, 0.68 mmol) in CH3CN (4 mL) was stirred at room temperature for 6 h. The mixture was diluted with EtOAc, washed with H2O and aqueous NaCl. The organic layer was dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 3% MeOH/CH2Cl2) to yield 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(prop-2-yn-1-yl)piperidin-4-yl)-1H-benzo[d]imidazole.
  • 1H NMR (CHLOROFORM-d) δ: 7.57 (d, J=8.6 Hz, 1H), 7.33 (s, 1H), 7.22-7.28 (m, 4H), 6.99-7.06 (m, 4H), 6.84 (dd, J=8.6, 1.5 Hz, 1H), 5.59 (s, 1H), 4.39-4.49 (m, 1H), 3.41 (d, J=2.5 Hz, 2H), 3.08 (br d, J=11.1 Hz, 2H), 2.41-2.60 (m, 4H), 2.31 (t, J=2.3 Hz, 1H), 1.86-2.05 (m, 3H), 1.05-1.28 (m, 4H). MS: 514.2 (M+H+).
    • Example BZ-4 Methyl 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)acetate; Compound #64
  • Figure US20190031618A1-20190131-C00356
  • Methyl 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)acetate was prepared according to the procedure as described in Example BZ-3 above, substituting methyl bromoacetate for propargyl bromide.
  • 1H NMR (CHLOROFORM-d) δ: 7.57 (d, J=8.6 Hz, 1H), 7.36 (s, 1H), 7.22-7.28 (m, 5H), 7.00-7.05 (m, 4H), 6.84 (dd, J=8.6, 1.5 Hz, 1H), 5.60 (s, 1H), 4.40-4.50 (m, 1H), 3.76 (s, 3H), 3.34 (s, 2H), 3.13 (br d, J=10.6 Hz, 2H), 2.45-2.63 (m, 4H), 1.97-2.05 (m, 1H), 1.84-1.93 (m, 2H), 1.06-1.28 (m, 4H). MS: 548.3 (M+H+).
    • Example BZ-5 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)acetic acid; Compound #63
  • Figure US20190031618A1-20190131-C00357
  • A mixture of methyl 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)acetate (70 mg, 0.13 mmol) and LiOH*H2O (16 mg, 0.38 mmol) in THF (2 mL) and H2O (1 mL) was stirred at room temperature for 2 h. To the reaction mixture was added 1N HCl (0.38 mL) and H2O. The organic solvent was removed and the mixture was filtered. The resulting solid was collected and dissolved in MeOH/CH2Cl2, and filtered. The solution was concentrated to yield 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)acetic acid. MS: 534.2 (M+H+).
    • Example BZ-6 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)aniline; Compound #52
  • Figure US20190031618A1-20190131-C00358
    • STEP A: 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-((3-nitrophenyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • To a solution of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(piperidin-4-yl)-1H-benzo[d]imidazole (400 mg, 0.68 mmol) and Et3N (0.33 mL, 2.37 mmol) in CH2Cl2 (8 mL) at 0° C. was added 3-nitrobenzenesulfonyl chloride (195 mg, 0.88 mmol). The reaction was stirred at 0° C. for 30 min then warmed up to room temperature and stirred for 2 h. The reaction was quenched with aq NaHCO3 and extracted with diethyl ether. The organic layer was washed with aq NaCl, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 70% EtOAc/heptane) to yield 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-((3-nitrophenyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole.
    • STEP B: 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)aniline
  • To a solution of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-((3-nitrophenyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (250 mg, 0.38 mmol) and NiCl2 (71 mg, 0.76 mmol) in MeOH (15 mL) at 0° C. was added NaBH4 (114 mg, 3.03 mmol). The reaction was stirred at 0° C. for 1 h before H2O was added. The mixture was then concentrated to remove most of the organic solvent, and then filtered. The resulting solid was washed with 20% MeOH/CH2Cl2 for 3 times. The solution was combined and concentrated to yield compound 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)aniline.
  • 1H NMR (DMSO-d6) δ: 7.51 (s, 1H), 7.24-7.43 (m, 6H), 7.13 (d, J=8.1 Hz, 4H), 6.99 (t, J=1.8 Hz, 1H), 6.78-6.89 (m, 3H), 5.81 (s, 1H), 5.69 (s, 2H), 4.67 (br t, J=11.9 Hz, 1H), 3.80 (br d, J=11.6 Hz, 2H), 2.61 (br t, J=11.4 Hz, 2H), 2.27-2.47 (m, 2H), 2.10-2.19 (m, 1H), 1.89 (br d, J=10.1 Hz, 2H), 0.89-1.03 (m, 4H). MS: 631.2 (M+H+).
    • Example BZ-7 N-(2-(2-(benzyloxy)ethoxy)ethyl)-3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)aniline: Compound of Formula (II)
  • Figure US20190031618A1-20190131-C00359
  • To a solution of 3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)aniline (50 mg, 0.079 mmol) and 7a (50 mg, 0.26 mmol) in acetic acid (0.3 mL) and 1,2-dichloroethane (3 mL) at room temperature was added NaBH(OAc)3 (50 mg, 0.24 mmol). The reaction mixture was stirred at room temperature over night before it was quenched with aq NaHCO3. The resulting mixture was extracted with EtOAc, and the organic layer was washed with aq NaCl, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 60% EtOAc/heptane) to yield N-(2-(2-(benzyloxy)ethoxy)ethyl)-3-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)aniline.
  • 1H NMR (CHLOROFORM-d) δ: 7.56 (d, J=8.4 Hz, 1H), 7.22-7.47 (m, 11H), 7.01-7.16 (m, 5H), 6.70-6.98 (m, 3H), 5.61 (s, 1H), 4.58 (s, 2H), 4.53 (m, 1H), 4.25-4.44 (m, 1H), 4.01 (br d, J=11.1 Hz, 2H), 3.59-3.86 (m, 6H), 3.33 (br d, J=4.0 Hz, 2H), 2.42-2.62 (m, 4H), 1.76-1.97 (m, 3H), 0.97-1.20 (m, 4H). MS: 809.2 (M+H+).
    • Example BZ-8 2-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)ethanamine; Compound #46
  • Figure US20190031618A1-20190131-C00360
    • STEP A: 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(vinylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • To a solution of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(piperidin-4-yl)-1H-benzo[d]imidazole (200 mg, 0.34 mmol) and Et3N (0.19 mL, 1.36 mmol) in CH2Cl2 (4 mL) at 0° C. was added 2-chloroethanesulfonyl chloride (0.043 mL, 0.41 mmol). The reaction was stirred at 0° C. for 30 min before it was warmed up to room temperature and stirred for another 1 h. The reaction was quenched with aq NaHCO3 and the resulting mixture was extracted with EtOAc. The organic layer was washed with aq NaCl, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 80% EtOAc/heptane) to yield 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(vinylsulfonyl)piperidin-4-yl)-1H-benzo[d] imidazole.
    • STEP B: 2-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)ethanamine
  • A mixture of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(vinylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (34 mg, 0.06 mmol) and Cs2CO3 (20 mg, 0.06 mmol) in 28% NH4OH aqueous solution (0.5 mL) and CH3CN (2 mL) was stirred at room temperature for 2 days. The mixture was concentrated and the residue was diluted with CH2Cl2 and washed with aq NaCl. The organic layer was dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 6% MeOH/CH2Cl2) to yield 2-((4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)sulfonyl)ethanamine.
  • MS: 583.2 (M+H+).
    • Example BZ-9 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-((2-(piperazin-1-yl)ethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole: Compound #45
  • Figure US20190031618A1-20190131-C00361
  • 6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(vinylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole was prepared according to the procedure as described in Example BZ-8 above, reacting N-Boc piperazine instead of 28% NH4OH aqueous solution.
  • A solution of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-(vinylsulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (34 mg, 0.045 mmol) in TFA (0.5 mL) and CH2Cl2 (2.5 mL) was stirred at room temperature for 2 h. The reaction mixture was concentrated and the residue was dissolved in CH2Cl2 and washed with aq NaHCO3. The aqueous layer was extracted again with CH2Cl2. The organic layers were combined, dried over Na2SO4 and concentrated to yield 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-((2-(piperazin-1-yl)ethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole.
  • MS: 652.2 (M+H+).
    • Example BZ-10 3-(2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)ethoxy)benzoic acid: Compound #44
  • Figure US20190031618A1-20190131-C00362
    • STEP A: 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)ethanol
  • To a solution of methyl 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)acetate (81 mg, 0.15 mmol) in THF (4 mL) at room temperature was added LiBH4 (2M solution in THF, 0.3 mL, 0.6 mmol). The reaction was stirred overnight, then quenched with H2O and extracted with EtOAc. The organic layer was washed with aq NaCl, dried over Na2SO4 and concentrated. The resulting residue was dissolved in MeOH (2 mL)/1N NaOH (1 mL) and heated at 100° C. by microwave for 1 h. The reaction mixture was concentrated to remove MeOH and the remaining aqueous solution was extracted with CH2Cl2. The organic layer was dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 3% MeOH/CH2Cl2) to yield 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)ethanol.
    • STEP B: methyl 3-(2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)ethoxy)benzoate
  • To a solution of 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)ethanol (35 mg, 0.067 mmol), methyl 3-hydroxybenzoate (30.7 mg, 0.20 mmol) and PPh3 (53 mg, 0.20 mmol) in THF (2 mL) at room temperature was added DIAD (0.039 mL, 0.20 mmol). The reaction was stirred overnight. The resulting mixture was then concentrated and the resulting residue purified by chromatography (silica gel column, 80% EtOAc/heptane) to yield methyl 3-(2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)ethoxy)benzoate.
    • STEP C: 3-(2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)ethoxy)benzoic acid
  • A solution of methyl 3-(2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)ethoxy)benzoate (31 mg, 0.047 mmol) and LiOH (10 mg, 0.24 mmol) in H2O (1 mL) and THF (2 mL) was stirred at room temperature for overnight. 1N HCl solution was added to the reaction mixture to adjust the pH to ˜3. The mixture was extracted with CH2Cl2 for 3 times. The organic layers were combined, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 8% MeOH/CH2Cl2) to yield 3-(2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)ethoxy)benzoic acid.
  • 1H NMR (CHLOROFORM-d) δ: 7.58-7.70 (m, 2H), 7.46-7.54 (m, 2H), 7.33-7.40 (m, 1H), 7.23 (d, J=8.1 Hz, 4H), 7.13 (dd, J=8.1, 2.0 Hz, 1H), 7.01 (d, J=8.6 Hz, 4H), 6.88 (dd, J=8.3, 1.3 Hz, 1H), 5.58 (s, 1H), 4.50-4.60 (m, 1H), 4.22 (t, J=5.3 Hz, 2H), 3.27-3.40 (m, 2H), 2.97 (br t, J=5.3 Hz, 2H), 2.55-2.73 (m, 2H), 2.41-2.53 (m, 2H), 2.00-2.09 (m, 1H), 1.92 (br d, J=10.6 Hz, 2H), 1.09-1.17 (m, 4H). MS: 640.2 (M+H+).
    • Example BZ-11 2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethanol
  • Figure US20190031618A1-20190131-C00363
    • STEP A: methyl 2,2-bis(4-chlorophenyl)acetate methyl 2,2-bis(4-chlorophenyl)acetate
  • A solution of 2,2-bis(4-chlorophenyl)acetic acid (5 g, 17.8 mmol) and H2SO4 (0.47 mL, 8.9 mmol) in MeOH (100 mL) was heated at 65° C. for 6 h, and was then stirred at room temperature overnight. The solution was concentrated and the residue was dissolved in diethyl ether and washed with aq NaHCO3 and aq NaCl. The organic layer was dried over Na2SO4 and concentrated yield methyl 2,2-bis(4-chlorophenyl)acetate.
    • STEP B: methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate
  • To a solution of methyl 2,2-bis(4-chlorophenyl)acetate (1.0 g, 3.39 mmol) and 2,4-difluoro-1-nitrobenzene (0.39 mL, 3.56 mmol) in THF (15 mL) at −78° C. was slowly added LiHMDS (1M in THF, 3.7 mL, 3.7 mmol). The reaction was stirred at −78° C. for 20 min before it was warmed up to room temperature and stirred overnight. To the reaction was added aq NH4Cl and the mixture was extracted with ethyl ether. The organic layer was washed with aq NaCl, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 30% CH2Cl2/heptane) to yield methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate.
    • STEP C: methyl 2,2-bis(4-chlorophenyl)-2-(3-((2-hydroxyethyl)amino)-4-nitrophenyl)acetate
  • To a solution of methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (275 mg) in CH3CN (5 mL) at room temperature was added ethanolamine (0.076 mL, 1.27 mmol) followed by Hunig's base (0.22 mL, 1.27 mmol). The reaction was heated at 55° C. for 2 h, and was then cooled to room temperature and stirred overnight. The reaction mixture was concentrated and the resulting residue was dissolved in EtOAc and washed with aq NaHCO3 and aq NaCl. The organic solution was dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 40% EtOAc/heptane) to yield methyl 2,2-bis(4-chlorophenyl)-2-(3-((2-hydroxyethyl)amino)-4-nitrophenyl)acetate.
    • STEP D: methyl 2-(4-amino-3-((2-hydroxyethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate
  • To a solution of methyl 2,2-bis(4-chlorophenyl)-2-(3-((2-hydroxyethyl)amino)-4-nitrophenyl)acetate (140 mg, 0.30 mmol) in EtOH (4 mL) and H2O (1 mL) was added NH4Cl (158 mg, 2.95 mmol) followed by Zn dust (96 mg, 1.47 mmol). The reaction was then heated at 70° C. for 1 h. The reaction mixture was cooled to room temperature and diluted with EtOAc. The solution was washed with aq NaHCO3 and aq NaCl, dried Na2SO4 and concentrated to yield methyl 2-(4-amino-3-((2-hydroxyethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate.
    • STEP E: methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxyethyl)-1H-benzo[d]imidazol-6-yl)acetate
  • A solution of methyl 2-(4-amino-3-((2-hydroxyethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate (120 mg, 0.27 mmol) and cyclopropanecarboxaldehyde (0.04 mL, 0.54 mmol) in DMSO (1 mL) was stirred at room temperature under air for 2 days. The solution was diluted with CH2Cl2 and washed with H2O and aq NaCl, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 40% EtOAc/heptane) to yield methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxyethyl)-1H-benzo[d]imidazol-6-yl)acetate.
    • STEP F: 2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethanol
  • A solution of methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxyethyl)-1H-benzo[d]imidazol-6-yl)acetate (85 mg, 0.17 mmol) in 3N NaOH aqueous solution (1 mL, 3 mmol) and 1,4-dioxane (4 mL) was heated at 100° C. for 16 h. The reaction was cooled to room temperature and 1N HCl aqueous solution was added to adjust pH to ˜7. The mixture was extracted with EtOAc and the organic solution was washed with aq NaCl, dried over Na2SO4, and concentrated. The resulting residue was purified by chromatography (silica gel column, 70% EtOAc/heptane) to yield 2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethanol.
  • MS: 437.1 (M+H+).
    • Example BZ-12 4-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethyl)benzoic acid; Compound #38
  • Figure US20190031618A1-20190131-C00364
  • 4-(2-(6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethyl)benzoic acid was prepared according to the procedure as described in Example BZ-11, substituting methyl 4-(2-aminoethyl)benzoate for ethanolamine.
  • MS: 541.0 (M+H+).
    • Example BZ-13 4-(2-(6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethyl)phenol; Compound #37
  • Figure US20190031618A1-20190131-C00365
  • 4-(2-(6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethyl)phenol was prepared according to the procedures described in Example BZ-11, substituting 4-(2-aminoethyl)phenol for ethanolamine.
  • MS: 513.2 (M+H+).
    • Examples BZ-14 methyl 4-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)benzoate; Compound #36
  • Figure US20190031618A1-20190131-C00366
  • To a solution of 2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethanol (50 mg, 0.11 mmol), methyl 4-hydroxybenzoate (52 mg, 0.34 mmol) and PPh3 (90 mg, 0.34 mmol) in THF (2 mL) was added DIAD (0.067 mL, 0.34 mmol). The reaction was stirred at room temperature overnight. The resulting mixture was then concentrated and purified by chromatography (silica gel column, 60% CH2Cl2/heptane) to yield methyl 4-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)benzoate.
  • MS: 571.2 (M+H+).
    • Example BZ-15 4-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)benzoic acid: Compound #35
  • Figure US20190031618A1-20190131-C00367
  • A solution of methyl 4-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)benzoate (38 mg, 0.067 mmol) and LiOH (10 mg, 0.42 mmol) in H2O (1 mL) and THF (2 mL) was stirred at room temperature for 2 days. The reaction mixture was acidified with 1N HCl aq solution and extracted with EtOAc. The organic layer was washed with aq NaCl, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 3% MeOH/CH2Cl2) to yield 4-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)benzoic acid. MS: 557.1 (M+H+).
    • Example BZ-16 methyl 6-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)nicotinate; Compound #33
  • Figure US20190031618A1-20190131-C00368
  • Methyl 6-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)nicotinate was prepared according to the procedure as described in Example BZ-14, substituting methyl 6-hydroxynicotinate for methyl 4-hydroxybenzoate.
  • 1H NMR (CHLOROFORM-d) Shift: 8.72 (d, J=2.0 Hz, 1H), 8.08 (dd, J=8.6, 2.5 Hz, 1H), 7.56 (d, J=8.1 Hz, 1H), 7.23-7.28 (m, 4H), 6.99-7.05 (m, 4H), 6.92 (dd, J=8.3, 1.8 Hz, 1H), 6.42 (d, J=8.6 Hz, 1H), 5.61 (s, 1H), 4.68 (t, J=5.3 Hz, 2H), 4.58 (t, J=5.3 Hz, 2H), 3.92 (s, 3H), 2.00-2.08 (m, 1H), 1.16-1.34 (m, 2H), 1.06-1.14 (m, 2H). MS: 572.1 (M+H+).
    • Example BZ-17 6-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)nicotinic acid; Compound #35
  • Figure US20190031618A1-20190131-C00369
  • 6-(2-(6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)nicotinic acid was prepared according to the procedure as described in Example BZ-15.
  • MS: 558.2 (M+H+).
    • Example BZ-18 methyl 3-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)benzoate; Compound #26
  • Figure US20190031618A1-20190131-C00370
  • Methyl 3-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)benzoate was prepared according to the procedure as described in Example BZ-14, substituting methyl 3-hydroxybenzoate for methyl 4-hydroxybenzoate.
  • MS: 571.1 (M+H+).
    • Example BZ-19 3-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)benzoic acid; Compound #23
  • Figure US20190031618A1-20190131-C00371
  • 3-(2-(6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)benzoic acid was prepared according to the procedure as described in Example BZ-15 substituting NaOH for LiOH.
  • MS: 557.1 (M+H+).
    • Example BZ-20 6-(bis(4-chlorophenyl)methyl)-1-(4-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazole; Compound #27
  • Figure US20190031618A1-20190131-C00372
  • 6-(Bis(4-chlorophenyl)methyl)-1-(4-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazole was prepared according to the procedure as described in Example BZ-11, substituting 2-(4-bromophenyl)ethanamine for ethanolamine.
  • 1H NMR (CHLOROFORM-d) δ: 7.54 (d, J=8.1 Hz, 1H), 7.24-7.34 (m, 6H), 6.99 (d, J=8.1 Hz, 4H), 6.90 (dd, J=8.1, 1.5 Hz, 1H), 6.78 (d, J=8.1 Hz, 2H), 6.64 (s, 1H), 5.57 (s, 1H), 4.32 (t, J=6.8 Hz, 2H), 2.98 (t, J=6.8 Hz, 2H), 1.66-1.73 (m, 1H), 1.10-1.17 (m, 2H), 0.96-1.06 (m, 2H). MS: 577.0 (M+H+).
    • Example BZ-21 4′-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-ylethyl)-[1,1′-biphenyl]-4-carboxylic acid: Compound #25
  • Figure US20190031618A1-20190131-C00373
  • A mixture of 6-(bis(4-chlorophenyl)methyl)-1-(4-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazole (75 mg, 0.13 mmol), (4-methoxycarbonyl)phenyl) boronic acid (47 mg, 0.26 mmol), K2CO3 (36 mg, 0.26 mmol) and Pd(dppf)C12 (5.3 mg, 0.0065 mmol) in EtOH (1 mL) and H2O (0.2 mL) was heated at 130° C. by microwave for 30 min. The reaction mixture was cooled to room temperature and to it was added H2O (1 mL), THF (2 mL) and LiOH*H2O (42 mg, 1.0 mmol). The reaction was stirred at room temperature overnight before 1N HCl aq solution was added to adjust pH to ˜3. The resulting mixture was extracted with EtOAc for 2 times. The organic layers were combined, washed with aq NaCl, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 3% MeOH/CH2Cl2) to yield 4′-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethyl)-[1,1′-biphenyl]-4-carboxylic acid.
  • MS: 617.3 (M+H+).
    • Example BZ-22 4′-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethyl)-[1,1′-biphenyl]-3-carboxylic acid: Compound #24
  • Figure US20190031618A1-20190131-C00374
  • 4′-(2-(6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethyl)-[1,1′-biphenyl]-3-carboxylic acid was prepared according to the procedure described in Example BZ-21 substituting (3-methoxycarbonyl)phenyl) boronic acid for (4-methoxycarbonyl)phenyl) boronic acid.
  • MS: 617.1 (M+H+).
    • Example BZ-23 6-(bis(4-chlorophenyl)methyl)-1-(3-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazole; Compound #20
  • Figure US20190031618A1-20190131-C00375
  • 6-(Bis(4-chlorophenyl)methyl)-1-(3-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazole was prepared according to the procedure described in Example BZ-11 substituting 2-(3-bromophenyl)ethanamine for ethanolamine.
  • 1H NMR (CHLOROFORM-d) Shift: 7.55 (d, J=8.1 Hz, 1H), 7.25-7.32 (m, 5H), 7.18 (s, 1H), 6.96-7.08 (m, 5H), 6.90 (dd, J=8.1, 1.5 Hz, 1H), 6.79 (d, J=7.6 Hz, 1H), 6.69 (s, 1H), 5.57 (s, 1H), 4.34 (t, J=6.8 Hz, 2H), 3.00 (t, J=6.8 Hz, 2H), 1.71-1.79 (m, 1H), 1.11-1.18 (m, 2H), 0.88-1.09 (m, 2H). MS: 577.0 (M+H+).
    • Example BZ-24 2-(1-(3-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)-2,2-bis(4-chlorophenyl)acetic acid; Compound #19
  • Figure US20190031618A1-20190131-C00376
  • Methyl 2-(1-(3-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)-2,2-bis(4-chlorophenyl)acetate was prepared according to the procedure described in Example BZ-11 (Step E) substituting 2-(3-bromophenyl)ethanamine for ethanolamine.
  • A solution of methyl 2-(1-(3-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)-2,2-bis(4-chlorophenyl)acetate (66 mg, 0.01 mmol) and 3N NaOH aq solution (0.5 mL, 1.5 mmol) in THF (2 mL) and MeOH (1 mL) was stirred at room temperature for 4 days. 1N HCl aq solution was added to adjust the pH to ˜3. The mixture was extracted with EtOAc. The organic layer was washed with aq NaCl, dried over Na2SO4 and concentrated to yield 2-(1-(3-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)-2,2-bis(4-chlorophenyl)acetic acid.
  • MS: 621.0 (M+H+).
    • Example BZ-25 methyl 3-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)-5-(trifluoromethyl)benzoate Compound #18
  • Figure US20190031618A1-20190131-C00377
  • Methyl 3-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)-5-(trifluoromethyl)benzoate was prepared according to the procedure described in Example BZ-14 substituting methyl 3-hydroxy-5-(trifluoromethyl)benzoate for methyl 4-hydroxybenzoate.
  • MS: 639.2 (M+H+).
    • Example BZ-26 3-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)-5-trifluoromethyl)benzoic acid; Compound #16
  • Figure US20190031618A1-20190131-C00378
  • 3-(2-(6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethoxy)-5-(trifluoromethyl)benzoic acid was prepared according to the procedure described in Example BZ-15.
  • MS: 625.2 (M+H+).
    • Example BZ-27 3′-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethyl)-[1,1′-biphenyl]-4-carboxylic acid; Compound #17
  • Figure US20190031618A1-20190131-C00379
  • 3′-(2-(6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethyl)-[1,1′-biphenyl]-4-carboxylic acid was prepared according to the procedure described in Example BZ-21 substituting 6-(Bis(4-chlorophenyl)methyl)-1-(3-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazole for 6-(bis(4-chlorophenyl)methyl)-1-(4-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazole.
  • MS: 617.1 (M+H+).
    • Example BZ-28 3′-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-ylethyl)-[1,1′-biphenyl]-3-carboxylic acid: Compound #11
  • Figure US20190031618A1-20190131-C00380
  • 3′-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethyl)-[1,1′-biphenyl]-3-carboxylic acid was prepared according to the procedure described in Example BZ-22 substituting 6-(Bis(4-chlorophenyl)methyl)-1-(3-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazole for 6-(bis(4-chlorophenyl)methyl)-1-(4-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazole.
  • 1H NMR (CHLOROFORM-d) Shift: 8.01-8.14 (m, 2H), 7.67 (br d, J=8.1 Hz, 1H), 7.46-7.58 (m, 2H), 7.40 (br d, J=7.6 Hz, 1H), 7.22-7.35 (m, 1H), 7.17 (br d, J=8.6 Hz, 4H), 7.06 (br s, 1H), 6.99 (br d, J=7.1 Hz, 1H), 6.87-6.95 (m, 5H), 6.65 (br s, 1H), 5.50 (s, 1H), 4.43 (br s, 2H), 3.13 (br s, 2H), 1.80 (br s, 1H), 1.26 (br s, 2H), 1.04 (br d, J=5.6 Hz, 2H). MS: 617.3 (M+H+).
    • Example BZ-29 5-(3-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethyl)phenyl)thiophene-2-carboxylic acid: Compound #6
  • Figure US20190031618A1-20190131-C00381
  • 5-(3-(2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethyl)phenyl)thiophene-2-carboxylic acid was prepared according to the procedure described in Example BZ-27 substituting (5-(methoxycarbonyl)thiophen-2-yl)boronic acid for (4-methoxycarbonyl)phenyl) boronic acid.
  • 1H NMR (CHLOROFORM-d) Shift: 7.58-7.87 (m, 2H), 7.42 (br d, J=8.1 Hz, 1H), 7.14-7.36 (m, 5H), 6.99-7.11 (m, 1H), 6.84-6.99 (m, 7H), 6.70 (s, 1H), 5.53 (s, 1H), 4.29-4.48 (m, 2H), 3.08 (br t, J=6.3 Hz, 2H), 1.71 (br s, 1H), 1.14-1.39 (m, 2H), 1.01 (br d, J=6.1 Hz, 2H). MS: 623.1 (M+H+).
    • Example BZ-30 6-(bis(4-chlorophenyl)methyl)-1-(2-(3-bromophenoxy)ethyl)-2-cyclopropyl-1H-benzo[d]imidazole; Compound #7
  • Figure US20190031618A1-20190131-C00382
  • 6-(Bis(4-chlorophenyl)methyl)-1-(2-(3-bromophenoxy)ethyl)-2-cyclopropyl-1H-benzo[d]imidazole was prepared according to the procedure described in Example BZ-14 substituting 3-bromophenol for methyl 4-hydroxybenzoate.
  • 1H NMR (CHLOROFORM-d) Shift: 7.57 (d, J=8.6 Hz, 1H), 7.23-7.36 (m, 5H), 6.89-7.10 (m, 8H), 6.54-6.59 (m, 1H), 5.64 (s, 1H), 4.56 (t, J=5.3 Hz, 2H), 4.23 (t, J=5.1 Hz, 2H), 2.02-2.12 (m, 1H), 1.07-1.31 (m, 4H). MS: 593.1 (M+H+).
    • Example BZ-31 methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate; Compound #14
  • Figure US20190031618A1-20190131-C00383
  • tert-Butyl 4-((6-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidine-1-carboxylate was prepared according to the procedure as described in Example BZ-11 (Step E) substituting tert-butyl 4-(aminomethyl)piperidine-1-carboxylate for ethanolamine.
  • A solution of tert-butyl 4-((6-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidine-1-carboxylate (75 mg, 0.12 mmol) in TFA (0.5 mL) and CH2Cl2 (2.5 mL) was stirred at room temperature for 1.5 h before It was concentrated. The resulting residue was dissolved in CH2Cl2 and washed with aq NaHCO3 solution and aq NaCl solution. The organic layer was dried over Na2SO4 and concentrated to yield a residue. To a solution of the residue in CH2Cl2 (3 mL) at 0° C. was added Et3N (0.08 mL, 0.58 mmol) followed by trifluoromethanesulfonic anhydride (Tf2O, 0.039 mL, 0.23 mmol). The reaction was stirred at 0° C. for 1 h then warmed up to room temperature and stirred for another 1 h. To the reaction was added aq NaHCO3 solution and the mixture was extracted with EtOAc. The organic layer was washed with aq NaCl solution, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 60% EtOAc/heptane) to yield methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate. 1H NMR (CHLOROFORM-d) Shift: 7.56 (d, J=8.6 Hz, 1H), 7.20-7.33 (m, 4H), 7.05-7.17 (m, 4H), 6.93-7.06 (m, 1H), 6.90 (d, J=1.5 Hz, 1H), 3.89-4.08 (m, 4H), 3.81 (s, 3H), 2.78-3.02 (m, 2H), 1.79-1.98 (m, 2H), 1.60-1.74 (m, 2H), 1.00-1.48 (m, 6H). MS: 680.1 (M+H+).
    • Example BZ-32 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid; Compound #12
  • Figure US20190031618A1-20190131-C00384
  • 2,2-Bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid was prepared from methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate according to the procedure as described in Example BZ-24.
  • MS: 666.2 (M+H+).
    • Example BZ-33 4-((4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)sulfonyl)benzoic acid; Compound #15
  • Figure US20190031618A1-20190131-C00385
    • STEP A: 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(piperidin-4-ylmethyl)-1H-benzo[d]imidazole
  • tert-Butyl 4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidine-1-carboxylate was prepared according to the procedure described in Example BZ-11 substituting tert-butyl 4-(aminomethyl)piperidine-1-carboxylate for ethanolamine.
  • A solution of tert-butyl 4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidine-1-carboxylate (125 mg, 0.21 mmol) in TFA (1 mL) and CH2Cl2 (5 mL) was stirred at room temperature for 1.5 h. The resulting mixture was then concentrated and the residue dissolved in CH2Cl2. The resulting solution was washed with aq NaHCO3 solution and aq NaCl solution, dried over Na2SO4 and concentrated to yield 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(piperidin-4-ylmethyl)-1H-benzo[d]imidazole.
    • STEP B: 4-((4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)sulfonyl)benzoic acid
  • To a solution of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(piperidin-4-ylmethyl)-1H-benzo[d]imidazole (38 mg, 0.078 mmol) in CH2Cl2 (2 mL) at room temperature was added Et3N (0.043 mL, 0.31 mmol) followed by methyl 4-(chlorosulfonyl)benzoate (27 mg, 0.12 mmol). The reaction was stirred overnight. The reaction mixture was concentrated and to the resulting residue was added THF (2 mL) and 1N NaOH aq solution (1 mL). The reaction was stirred at room temperature for 2 h before 1N HCl aq solution was added to adjust pH to ˜3. The mixture was extracted with EtOAc. The organic layer was washed with aq NaCl solution, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 4% MeOH/CH2Cl2) to yield 4-((4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)sulfonyl)benzoic acid.
  • MS: 674.2 (M+H+)
    • Examples BZ-34 methyl 3-((4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)methyl)benzoate: Compound #13
  • Figure US20190031618A1-20190131-C00386
  • A mixture of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(piperidin-4-ylmethyl)-1H-benzo[d]imidazole (28 mg, 0.057 mmol), methyl 3-(bromomethyl)benzoate (13 mg, 0.057 mmol) and K2CO3 (16 mg, 0.11 mmol) in CH3CN (2 mL) was stirred at room temperature for 2 h. The reaction mixture was diluted with EtOAc and washed with H2O and aq NaCl aq solution. The organic layer was dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 90% EtOAc/heptane) to yield methyl 3-((4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)methyl)benzoate.
  • MS: 638.3 (M+H+).
    • Example BZ-35 3-((4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)methyl)benzoic acid; Compound #10
  • Figure US20190031618A1-20190131-C00387
  • A solution of methyl 3-((4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)methyl)benzoate (25 mg, 0.039 mmol) and LiOH*H2O (12 mg, 0.29 mmol) in H2O (1 mL) and THF (2 mL) was stirred at room temperature overnight. To the reaction mixture was added 1N HCl aq solution to adjust pH to ˜4. The resulting mixture was extracted with EtOAc. The organic layer was washed with aq NaCl solution, dried over Na2SO4 and concentrated to yield 3-((4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)methyl)benzoic acid.
  • MS: 624.3 (M+H+).
    • Example BZ-36 N-(3-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-1-yl)propyl)-3-bromobenzenesulfonamide; Compound #9
  • Figure US20190031618A1-20190131-C00388
  • tert-Butyl (3-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)propyl)carbamate was prepared according to the procedure as described in Example BZ-11 substituting tert-butyl (3-aminopropyl)carbamate for ethanolamine.
  • 3-(6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)propan-1-amine was prepared according to the procedure as described in Example BZ-33 (Step A).
  • To a solution of 3-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)propan-1-amine (0.19 mmol) in CH2Cl2 (3 mL) at 0° C. was added Et3N (0.11 mL, 0.76 mmol) followed by 3-bromobenzene-1-sulfonyl chloride (0.041 mL, 0.29 mmol). The reaction was warmed up to room temperature and stirred overnight. To the reaction was added aq NaHCO3 solution and the resulting mixture was extracted with EtOAc. The organic layer was washed with aq NaCl solution, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 60% EtOAc/heptane) to yield N-(3-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)propyl)-3-bromobenzenesulfonamide.
  • 1H NMR (CHLOROFORM-d) Shift: 7.95 (t, J=1.8 Hz, 1H), 7.69 (ddd, J=8.1, 3.3, 1.8 Hz, 2H), 7.53 (d, J=8.6 Hz, 1H), 7.35 (t, J=7.9 Hz, 1H), 7.21-7.28 (m, 4H), 6.90-7.05 (m, 6H), 5.60 (s, 1H), 5.10 (t, J=6.3 Hz, 1H), 4.24 (t, J=6.8 Hz, 2H), 2.96 (q, J=6.2 Hz, 2H), 1.97-2.06 (m, 2H), 1.84-1.93 (m, 1H), 1.01-1.20 (m, 4H). MS: 670.0 (M+H+).
    • Example BZ-37 3′-(N-(3-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)propyl)sulfamoyl)-[1,1′-biphenyl]-4-carboxylic acid; Compound #8
  • Figure US20190031618A1-20190131-C00389
  • 3′-(N-(3-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)propyl)sulfamoyl)-[1,1′-biphenyl]-4-carboxylic acid was prepared according to the procedure as described in Example BZ-21, substituting N-(3-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)propyl)-3-bromobenzenesulfonamide for 6-(bis(4-chlorophenyl)methyl)-1-(4-bromophenethyl)-2-cyclopropyl-1H-benzo[d]imidazole.
  • 1H NMR (CHLOROFORM-d) Shift: 8.01-8.17 (m, 3H), 7.73-7.88 (m, 2H), 7.52-7.68 (m, 4H), 7.20-7.29 (m, 4H), 6.97-7.09 (m, 5H), 6.92 (dd, J=8.3, 1.3 Hz, 1H), 5.60 (s, 1H), 4.27 (brt, J=7.1 Hz, 2H), 2.96 (t, J=6.3 Hz, 2H), 1.84-2.05 (m, 3H), 0.98-1.30 (m, 4H). MS: 710.3 (M+H+).
    • Examples BZ-38 Methyl 2-(4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)pyrimidine-5-carboxylate: Compound #5
  • Figure US20190031618A1-20190131-C00390
  • A solution of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(piperidin-4-ylmethyl)-1H-benzo[d]imidazole (27 mg, 0.055 mmol), methyl 2-bromopyrimidine-5-carboxylate (16 mg, 0.072 mmol) and Hunig's base (0.03 mL, 0.17 mmol) in CH3CN (2 mL) was stirred at room temperature overnight. The reaction mixture was concentrated and the residue was dissolved in EtOAc. The resulting solution was washed with aq NaHCO3 solution and aq NaCl solution, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 60% EtOAc/heptane) to yield methyl 2-(4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)pyrimidine-5-carboxylate.
  • 1H NMR (CHLOROFORM-d) Shift: 8.77-8.93 (m, 2H), 7.57 (d, J=8.6 Hz, 1H), 7.17-7.34 (m, 5H), 6.81-7.11 (m, 5H), 5.54-5.72 (m, 1H), 4.94 (br d, J=13.6 Hz, 2H), 3.98-4.14 (m, 2H), 3.88 (s, 3H), 2.84 (br t, J=11.9 Hz, 2H), 2.05-2.26 (m, 1H), 1.83-2.02 (m, 1H), 1.60-1.81 (m, 2H), 1.18-1.39 (m, 4H), 1.03-1.15 (m, 2H).
  • MS: 626.2 (M+H+).
    • Example BZ-39 2-(4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)pyrimidine-5-carboxylic acid: Compound #4
  • Figure US20190031618A1-20190131-C00391
  • A solution of methyl 2-(4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)pyrimidine-5-carboxylate (25 mg, 0.04 mmol) and LiOH.H2O (6.7 mg, 0.16 mmol) in H2O (1 mL) and THF (2 mL) was stirred at room temperature overnight. To the reaction solution was added 1N HCl aq solution to adjust pH to ˜3. The resulting mixture was extracted with EtOAc. The organic layer was washed with aq NaCl solution, dried over Na2SO4 and concentrated yield 2-(4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)pyrimidine-5-carboxylic acid.
  • 1H NMR (CHLOROFORM-d) δ: 8.90 (s, 2H), 7.78 (br d, J=6.1 Hz, 1H), 7.21-7.34 (m, 4H), 6.97-7.09 (m, 5H), 6.94 (br s, 1H), 5.64 (s, 1H), 4.98 (br d, J=12.6 Hz, 2H), 3.99-4.16 (m, 2H), 2.87 (br t, J=12.4 Hz, 2H), 2.09-2.20 (m, 1H), 1.87-2.07 (m, 3H), 1.72 (brd, J=11.6 Hz, 2H), 1.17-1.38 (m, 4H). MS: 612.2 (M+H+).
    • Example BZ-40 2-(4-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)pyrimidine-4-carboxylic acid: Compound #2
  • Figure US20190031618A1-20190131-C00392
  • 2-(4-((6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)pyrimidine-4-carboxylic acid was prepared according to the procedure as described in Example BZ-39, substituting methyl 2-bromopyrimidine-4-carboxylate for methyl 2-bromopyrimidine-5-carboxylate.
  • MS: 612.0 (M+H+).
    • Example BZ-41 4-(4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)benzoic acid; Compound #1
  • Figure US20190031618A1-20190131-C00393
    • STEP A: methyl 4-(4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)benzoate
  • A mixture of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(piperidin-4-ylmethyl)-1H-benzo[d]imidazole (30 mg, 0.06 mmol), methyl 4-bromobenzoate (26 mg, 0.12 mmol), Cs2CO3 (40 mg, 0.12 mmol), dicyclohexyl(2′,4′,6′-triisopropyl-[1,1′-biphenyl]-2-yl)phosphine (8.7 mg, 0.018 mmol) and Pd(OAc)2 (2.1 mg, 0.009 mmol) in 1,4-dioxane (1.5 mL) was heated at 140° C. by microwave for 3 h. The reaction mixture was cooled to room temperature, diluted with EtOAc, and filtered. The solution was concentrated and purified by chromatography (silica gel column, 60% EtOAc/heptane) to yield methyl 4-(4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)benzoate.
    • STEP B: 4-(4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)benzoic acid
  • To a solution of methyl 4-(4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)benzoate (30 mg, 0.05 mmol) in H2O (1 mL) and THF (2 mL) at room temperature was added 1N NaOH aq solution (0.38 mL, 0.38 mmol). The reaction was stirred for 5 days before 1N HCl aq solution was added to adjust pH to ˜3. The resulting mixture was extracted with EtOAc. The organic layer was washed with aq NaCl solution, dried over Na2SO4 and concentrated. The resulting residue was purified by chromatography (silica gel column, 5% MeOH/CH2Cl2) to yield 4-(4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidin-1-yl)benzoic acid.
  • 1H NMR (CHLOROFORM-d) δ: 7.99 (br d, J=8.6 Hz, 2H), 7.61 (d, J=8.6 Hz, 1H), 7.21-7.31 (m, 4H), 7.03 (d, J=8.1 Hz, 4H), 6.83-6.97 (m, 4H), 5.62 (s, 1H), 3.97-4.15 (m, 2H), 3.71-3.96 (m, 2H), 2.78 (br t, J=11.9 Hz, 2H), 2.05 (m, 1H), 1.87-2.01 (m, 1H), 1.69 (br d, J=11.6 Hz, 2H), 1.33-1.46 (m, 2H), 1.23-1.33 (m, 2H), 1.04-1.16 (m, 2H). MS: 610.3 (M+H+).
    • Example MP-1 bis(4-chlorophenyl)(2-(tetrahydrofuran-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • Figure US20190031618A1-20190131-C00394
    • and 6-(bis(4-chlorophenyl)methyl)-2-(tetrahydrofuran-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00395
    • Step 1: 6-bromo-2-(tetrahydrofuran-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • A solution of 5-bromo-N1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)benzene-1,2-diamine (484 mg, 1.20 mmol, prepared as described in Example YM-4) and 2-tetrahydrofuroic acid (279 mg, 2.41 mmol) in THF (2 mL) was heated at reflux temperature overnight. The solution was diluted with saturated aqueous NaHCO3 and the mixture was extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 0-40% ethyl acetate in dichloromethane gradient to yield 6-bromo-2-(tetrahydrofuran-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole as an off-white solid.
    • Step 2: bis(4-chlorophenyl)(2-(tetrahydrofuran-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • A solution of 6-bromo-2-(tetrahydrofuran-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (205 mg, 0.43 mmol) and 4,4′-dichlorobenzophenone (107 mg, 0.43 mmol) in THF (3 mL) was cooled to −78° C. tert-Butyllithium (1.7M in pentane, 0.625 mL, 1.06 mmol) was added slowly by syringe. The reaction was stirred at −78° C. for 15 minutes, and then the cooling bath was removed. The reaction mixture was stirred overnight at room temperature. The reaction was quenched by addition of saturated aqueous NaHCO3 and extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 0-40% ethyl acetate in dichloromethane gradient to yield bis(4-chlorophenyl)(2-(tetrahydrofuran-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol as a white solid. MS: 654.2 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 7.67 (d, J=8.6 Hz, 1H), 7.53 (s, 1H), 7.33-7.29 (m, 3H), 7.27-7.21 (m, 5H), 7.05 (br d, J=8.6 Hz, 1H), 5.15 (t, J=6.6 Hz, 1H), 4.86-4.74 (m, 1H), 4.13 (br d, J=13.0 Hz, 1H), 3.95-3.87 (m, 1H), 3.87-3.78 (m, 1H), 3.23 (q, J=12.3 Hz, 2H), 2.94 (td, J=6.6, 13.4 Hz, 1H), 2.88 (br s, 1H), 2.54-2.40 (m, 1H), 2.40-2.29 (m, 2H), 2.18 (td, J=6.4, 13.1 Hz, 1H), 2.12-2.01 (m, 3H), 1.98 (br d, J=13.2 Hz, 1H).
    • Step 3: 6-(bis(4-chlorophenyl)methyl)-2-(tetrahydrofuran-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • A solution of bis(4-chlorophenyl)(2-(tetrahydrofuran-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol (138 mg, 0.21 mmol), boron trifluoride diethyl etherate (0.029 mL, 0.23 mmol), and triethylsilane (123 mg, 1.05 mmol) in dichloromethane (2 mL) was stirred at room temperature for 3 days. The solution was diluted with saturated aqueous NaHCO3 and the mixture was extracted with dichloromethane. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 0-40% ethyl acetate in dichloromethane gradient to yield 6-(bis(4-chlorophenyl)methyl)-2-(tetrahydrofuran-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole as a white solid. MS: 638.1 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 7.69 (d, J=8.6 Hz, 1H), 7.30-7.24 (m, 4H), 7.18 (s, 1H), 7.04 (d, J=8.6 Hz, 4H), 6.98 (dd, J=1.3, 8.3 Hz, 1H), 5.63 (s, 1H), 5.15 (dd, J=6.1, 7.1 Hz, 1H), 4.80 (ddd, J=4.0, 8.1, 12.1 Hz, 1H), 4.23-4.08 (m, 2H), 3.91 (dt, J=5.8, 7.7 Hz, 1H), 3.87-3.79 (m, 1H), 3.23 (q, J=12.5 Hz, 2H), 3.00-2.91 (m, 1H), 2.52-2.40 (m, 1H), 2.40-2.29 (m, 2H), 2.22-2.12 (m, 1H), 2.12-1.95 (m, 3H).
    • Example MP-2 6-(benzo[d][1,3]dioxol-5-yl(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00396
    • Step 1: benzo[d][1,3]dioxol-5-yl(4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • A solution of 6-bromo-2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (106 mg, 0.23 mmol, prepared as described in Example YM-4) and 1,3-benzodioxol-5-yl(4-chlorophenyl)methanone (61.1 mg, 0.23 mmol) in THF (1 mL) was cooled to −78° C. tert-Butyllithium (1.7M in pentane, 0.345 mL, 0.59 mmol) was added and the reaction was stirred at −78° C. for 15 minutes. The cooling bath was removed and the reaction mixture was warm to room temperature over 1 hour. The reaction was quenched by addition of saturated aqueous NaHCO3 and extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 0-50% ethyl acetate in heptane gradient to yield benzo[d][1,3]dioxol-5-yl(4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol as a white solid.
    • Step 2: 6-(benzo[d][1,3]dioxol-5-yl(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • To a solution of benzo[d][1,3]dioxol-5-yl(4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol (50 mg, 0.079 mmol) and triethylsilane (45.8 mg, 0.39 mmol) in dichloromethane (4 mL) was added trifluoroacetic acid (1 mL). The reaction mixture turned deep red upon addition of trifluoroacetic acid but faded within minutes leaving a clear, colorless solution. After 1 hour, the reaction mixture was diluted with saturated aqueous NaHCO3 and the mixture was extracted with dichloromethane. The organic layer was concentrated to yield 6-(benzo[d][1,3]dioxol-5-yl(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole. MS: 617.8 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 7.58 (d, J=8.3 Hz, 1H), 7.28-7.22 (m, 2H), 7.11-7.00 (m, 3H), 6.96 (dd, J=1.3, 8.4 Hz, 1H), 6.74 (d, J=8.1 Hz, 1H), 6.58 (d, J=1.7 Hz, 1H), 6.57-6.51 (m, 1H), 5.94 (q, J=1.3 Hz, 2H), 5.56 (s, 1H), 4.70-4.57 (m, 1H), 4.22-4.14 (m, 2H), 3.24 (br t, J=12.5 Hz, 2H), 2.57-2.38 (m, 2H), 2.10-1.98 (m, 2H), 1.94 (tt, J=5.0, 8.2 Hz, 1H), 1.23-1.17 (m, 2H), 1.13-1.06 (m, 2H).
    • Example MP-3 bis(4-chlorophenyl)(2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • Figure US20190031618A1-20190131-C00397
    • and 6-(bis(4-chlorophenyl)methyl)-2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazoleas
  • Figure US20190031618A1-20190131-C00398
    • Step 1: 6-bromo-2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • A solution of 5-bromo-N1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)benzene-1,2-diamine (724 mg, 1.8 mmol, prepared as described in Example YM-4) and cyclobutanecarboxaldehyde (167 mg, 1.98 mmol) in DMSO (10 mL) was stirred at room temperature overnight open to air. The solution was diluted with brine and the mixture was extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 0-40% ethyl acetate in dichloromethane gradient to yield 6-bromo-2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole as a white solid.
    • Step 2: bis(4-chlorophenyl)(2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • A solution of 6-bromo-2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (95 mg, 0.20 mmol) and 4,4′-dichlorobenzophenone (51.2 mg, 0.20 mmol) in THF (2 mL) was cooled to −78° C. tert-Butyllithium (1.7M in pentane, 0.3 mL, 0.51 mmol) was added slowly by syringe. The reaction was stirred at −78° C. for 15 minutes and then allowed to warm to room temperature. The reaction mixture was stirred for 4 hours, quenched by addition of saturated aqueous NaHCO3, and extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 25-40% ethyl acetate in dichloromethane gradient to yield bis(4-chlorophenyl)(2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol as a white solid. MS: 638.1 (M+H+).
    • Step 3: 6-(bis(4-chlorophenyl)methyl)-2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • A solution of bis(4-chlorophenyl)(2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol (66 mg, 0.103 mmol) and triethylsilane (60.1 mg, 0.517 mmol) were combined in dry dichloromethane and the solution cooled to 0° C. Boron trifluoride diethyl etherate (0.014 mL, 0.114 mmol) was added and the reaction mixture was stirred at room temperature overnight. The reaction was quenched with saturated aqueous NaHCO3 and the mixture was extracted with dichloromethane. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 25-40% ethyl acetate in dichloromethane gradient to yield 6-(bis(4-chlorophenyl)methyl)-2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole as a colorless oil. MS: 622.1 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 7.69 (d, J=8.1 Hz, 1H), 7.30-7.23 (m, 4H), 7.1-7.07 (m, 1H), 7.07-7.00 (m, 4H), 6.96 (dd, J=1.3, 8.3 Hz, 1H), 5.62 (s, 1H), 4.25-4.15 (m, 2H), 3.74-3.65 (m, 1H), 3.18 (br t, J=12.6 Hz, 2H), 2.66-2.53 (m, 2H), 2.48-2.33 (m, 4H), 2.23-2.10 (m, 1H), 2.08-2.00 (m, 2H), 1.92 (br d, J=11.1 Hz, 2H).
    • Example MP-4 ethyl 4-(6-(bis(4-chlorophenyl)methyl)-2-ethyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00399
    • Step 1: 3-fluoro-N-methoxy-N-methyl-4-nitrobenzamide
  • 3-Fluoro-4-nitrobenzoic acid (15.2 g, was suspended in dichloromethane (300 mL) and the mixture was cooled to 0° C. and stirred vigorously. Oxalyl chloride (45.16 mL, 90.32 mmol, 2M in dichloromethane) was added slowly by addition funnel, maintaining the temperature below 10° C. After the addition of oxalyl chloride was complete, the ice bath was removed and the reaction, still a suspension, was allowed to warm to room temperature. Gas evolution was evident. After 2 hours, the solution was homogeneous and gas evolution had ceased. The flask was returned to an ice bath and cooled to 0° C. A mixture of N,O-dimethylhydroxylamine hydrochloride (9.61 g, 98.54 mmol) and triethylamine (57.07 mL, 410.56 mmol) in dichloromethane (100 mL) was added slowly by addition funnel, maintaining a temperature less than 25° C. Once this mixture was added, the ice bath was removed and the orange reaction mixture was stirred at room temperature for 1 hour. The reaction mixture was diluted with saturated aqueous NaHCO3 and water and then extracted with dichloromethane. The organic layer was concentrated to yield 3-fluoro-N-methoxy-N-methyl-4-nitrobenzamide as a dark red-orange solid, which was used without further purification in the next step.
    • Step 2: ethyl 4-((5-(methoxy(methyl)carbamoyl)-2-nitrophenyl)amino)piperidine-1-carboxylate
  • A solution of 3-fluoro-N-methoxy-N-methyl-4-nitrobenzamide (17.5 g, 76.69 mmol), ethyl 4-amino-1-piperidinecarboxylate (13.81 mL, 80.53 mmol), and diisopropylethylamine (19.83 mL, 115.04 mmol) in acetonitrile (300 mL) was heated at reflux temperature for 18 hours and then stirred at room temperature for an additional 48 hours. The reaction mixture was concentrated to −50 mL and then diluted with EtOAc (500 mL). The organic mixture was washed with saturated aqueous NaHCO3 and then brine. The organic layer was concentrated to a dark oil and then purified by silica gel chromatography using a gradient of 50:50 EtOAc:heptane to 100% EtOAc as the eluent to yield ethyl 4-((5-(methoxy(methyl)carbamoyl)-2-nitrophenyl)amino)piperidine-1-carboxylate as an orange oil.
    • Step 3: ethyl 4-((5-(4-chlorobenzoyl)-2-nitrophenyl)amino)piperidine-1-carboxylate
  • To a solution of ethyl 4-((5-(methoxy(methyl)carbamoyl)-2-nitrophenyl)amino)piperidine-1-carboxylate (8.50 g, 22.33 mmol) in THF (250 mL) cooled to 0° C. was added 4-chlorophenylmagnesium bromide (24.57 mL, 24.57 mmol, 1M in diethyl ether) slowly by addition funnel. The cooling bath was removed and the reaction mixture was stirred at room temperature of 2 hours. The reaction was quenched with saturated aqueous NaHCO3 and the mixture extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel using heptane/ethyl acetate as the eluent to yield ethyl 4-((5-(4-chlorobenzoyl)-2-nitrophenyl)amino)piperidine-1-carboxylate as a yellow solid.
    • Step 4: ethyl 4-((5-(bis(4-chlorophenyl)(hydroxy)methyl)-2-nitrophenyl)amino)piperidine-1-carboxylate
  • To a solution of ethyl 4-((5-(4-chlorobenzoyl)-2-nitrophenyl)amino)piperidine-1-carboxylate (7.45 g, 17.25 mmol) in THF (200 mL) cooled to 0° C. was added 4-chlorophenylmagnesium bromide (37.95 mL, 27.95 mmol, 1M in diethyl ether) slowly by syringe. After 1 hour at 0° C., the reaction was quenched with saturated aqueous NaHCO3 and extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 10-40% ethyl acetate in heptane gradient to yield ethyl 4-((5-(bis(4-chlorophenyl)(hydroxy)methyl)-2-nitrophenyl)amino)piperidine-1-carboxylate.
    • Step 5: ethyl 4-((5-(bis(4-chlorophenyl)methyl)-2-nitrophenyl)amino)piperidine-1-carboxylate
  • To a solution of ethyl 4-((5-(bis(4-chlorophenyl)(hydroxy)methyl)-2-nitrophenyl)amino)piperidine-1-carboxylate (6.38 g, 1171 mmol) and triethylsilane (5.45 g, 46.84 mmol) in dichloromethane (589 mL) was added trifluoroacetic acid (39.3 mL). The reaction mixture was stirred overnight at room temperature and then neutralized with saturated aqueous NaHCO3. The reaction mixture was extracted with dichloromethane. The organic layer was concentrated and the residue purified by chromatography on silica gel to yield ethyl 4-((5-(bis(4-chlorophenyl)methyl)-2-nitrophenyl)amino)piperidine-1-carboxylate.
    • Step 6: ethyl 4-((2-amino-5-(bis(4-chlorophenyl)methyl)phenyl)amino)piperidine-1-carboxylate
  • Ethyl 4-((5-(bis(4-chlorophenyl)methyl)-2-nitrophenyl)amino)piperidine-1-carboxylate (3.32 g, 6.28 mmol) was dissolved in ethyl acetate (250 mL) and nitrogen was bubbled through the solution for a few minutes. Raney nickel (300 mg, 5.11 mmol) was added and the reaction mixture was placed on a Parr shaker under 45 psi H2 for 5 hours. The catalyst was filtered through CELITE and the filtrate was evaporated in vacuo. The residue was purified by chromatography on silica gel to yield ethyl 4-((2-amino-5-(bis(4-chlorophenyl)methyl)phenyl)amino)piperidine-1-carboxylate as a brown solid.
    • Step 7: ethyl 4-(6-(bis(4-chlorophenyl)methyl)-2-ethyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • A solution of ethyl 4-((2-amino-5-(bis(4-chlorophenyl)methyl)phenyl)amino)piperidine-1-carboxylate (209 mg, 0.42 mmol) and propionaldehyde (48.7 mg, 0.84 mmol) in DMSO (3 mL) was stirred at room temperature open to air for 72 hours. The solution was diluted with brine and the mixture was extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel to yield ethyl 4-(6-(bis(4-chlorophenyl)methyl)-2-ethyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate.
  • 1H NMR (400 MHz, CDCl3) δ: 7.63 (d, J=8.6 Hz, 1H), 7.30-7.20 (m, 4H), 7.17 (s, 1H), 7.03 (d, J=8.6 Hz, 4H), 6.90 (dd, J=1.5, 8.3 Hz, 1H), 5.61 (s, 1H), 4.53-4.34 (m, 2H), 4.29 (tdd, J=4.1, 8.3, 12.3 Hz, 1H), 4.19 (q, J=7.1 Hz, 2H), 2.98-2.82 (m, 4H), 2.40-2.15 (m, 2H), 1.85 (br d, J=11.7 Hz, 2H), 1.44 (t, J=7.5 Hz, 3H), 1.30 (t, J=7.1 Hz, 3H)
    • Example MP-5 ethyl 4-(6-(bis(4-chlorophenyl)methyl)-2-(pyridin-3-yl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00400
  • Ethyl 4-(6-(bis(4-chlorophenyl)methyl)-2-(pyridin-3-yl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate was prepared according to the procedure as described in Example MP-4 above, modifying the procedure used in Step 7 as follows:
  • A solution of ethyl 4-((2-amino-5-(bis(4-chlorophenyl)methyl)phenyl)amino)piperidine-1-carboxylate (147 mg, 0.30 mmol) and pyridine-3-carboxaldehyde (31.6 mg, 0.30 mmol) in DMSO (1 mL) was stirred at room temperature open to air overnight. The solution was diluted with brine and the mixture was extracted with ethyl acetate. The organic layer was concentrated and the resulting brown oil purified by chromatography on silica gel using a gradient of 10-50% ethyl acetate in heptane followed by 5% methanol in dichloromethane as eluent to yield ethyl 4-(6-(bis(4-chlorophenyl)methyl)-2-(pyridin-3-yl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate as an orange oil.
  • 1H NMR (400 MHz, CDCl3) δ: 8.84 (d, J=1.5 Hz, 1H), 8.78 (dd, J=1.7, 4.9 Hz, 1H), 8.00 (td, J=1.9, 7.9 Hz, 1H), 7.75 (d, J=8.6 Hz, 1H), 7.50 (ddd, J=0.7, 4.9, 7.8 Hz, 1H), 7.32 (s, 1H), 7.30-7.24 (m, 4H), 7.10-7.04 (m, 4H), 7.02 (dd, J=1.5, 8.6 Hz, 1H), 5.66 (s, 1H), 4.46-4.27 (m, 3H), 4.18 (q, J=7.1 Hz, 2H), 2.76 (br t, J=12.5 Hz, 2H), 2.35 (br d, J=8.8 Hz, 2H), 1.90 (br d, J=11.2 Hz, 2H), 1.29 (t, J=7.1 Hz, 3H).
    • Example MP-6 bis(4-chlorophenyl)(2-ethyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • Figure US20190031618A1-20190131-C00401
  • A solution of 6-bromo-2-ethyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (700 mg, 1.59 mmol, prepared according to the procedures as described in YM-4, Steps 4 and 5) and 4,4′-dichlorobenzophenone (399.2 mg, 1.59 mmol) in THF (2 mL) was cooled to −78° C. tert-Butyllithium (1.7M in pentane, 2.34 mL, 3.98 mmol) was added slowly by syringe. The reaction was stirred at −78° C. for 15 minutes and then allowed to warm to room temperature. The reaction mixture was stirred for 3 hours, quenched by addition of saturated aqueous NaHCO3, and extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 0-40% ethyl acetate in dichloromethane gradient to yield bis(4-chlorophenyl)(2-ethyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol as a white solid. MS: 611.8 (M+H+).
    • Example MP-7 6-(bis(4-methoxyphenyl)methyl)-2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00402
    • Step 1: (2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)bis(4-methoxyphenyl)methanol
  • A solution of 6-bromo-2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (131 mg, 0.28 mmol, prepared as described in Example MP-3) and 4,4′-dimethoxybenzophenone (68.1 mg, 0.28 mmol) in THF (2 mL) was cooled to −78° C. tert-Butyllithium (1.7M in pentane, 0.41 mL, 0.70 mmol) was added slowly by syringe. The reaction was stirred at −78° C. for 15 minutes and then allowed to warm to room temperature. The reaction mixture was stirred for 1 hour, quenched by addition of saturated aqueous NaHCO3, and extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 10-40% ethyl acetate in heptane gradient to yield (2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)bis(4-methoxyphenyl)methanol as a white solid.
    • Step 2: 6-(bis(4-methoxyphenyl)methyl)-2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • To a solution of (2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)bis(4-methoxyphenyl)methanol (114 mg, 0.181 mmol) and triethylsilane (46.2 mg, 0.40 mmol) in dichloromethane (2 mL) was added trifluoroacetic acid (0.25 mL) and the reaction mixture was stirred at room temperature overnight. An additional amount of triethylsilane (100 μL) and trifluoroacetic acid (259 μL) were added and stirring was continued at room temperature overnight. The reaction mixture was neutralized with saturated aqueous NaHCO3 extracted with dichloromethane, and the solvent removed in vacuo. The residue was purified by chromatography on silica gel eluting with a 10-50% ethyl acetate in heptane gradient to yield 6-(bis(4-methoxyphenyl)methyl)-2-cyclobutyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole as a white solid. MS: 614.0 (M+H+).
    • Example MP-8 ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00403
    • Step 1: ethyl 4-((5-chloro-2-nitrophenyl)amino)piperidine-1-carboxylate
  • A solution of 2,4-dichloronitrobenzene (19.2 g, 100 mmol), ethyl 4-amino-1-piperidine-carboxylate (18.95 g, 110 mmol), and triethylamine (16.619 mL, 120 mmol) in acetonitrile (75 mL) was heated at reflux temperature for 13 days. The solvent was evaporated, the residue was dissolved in dichloromethane (5400 mL), and the resulting solution was washed with a 1N HCl solution (250 mL). The organic layer was further washed with brine (100 mL), dried over MgSO4, filtered, and evaporated. The residue was purified by chromatography on silica gel using a 0-10% methanol in dichloromethane gradient as eluent to yield ethyl 4-((5-chloro-2-nitrophenyl)amino)piperidine-1-carboxylate as an orange solid.
    • Step 2: ethyl 4-((5-((4-chlorophenyl)(cyano)methyl)-2-nitrophenyl)amino)piperidine-1-carboxylate
  • To a solution of 4-chlorophenylacetonitrile (4.78 g, 31.5 mmol) in THF (50 mL) and isopropyl alcohol (10 mL) was added t-BuOK (8.42 g, 75 mmol) and the mixture was stirred at room temperature for 15 minutes. Compound 8a (9.83 g, 30 mmol) was added and the reaction was stirred at room temperature overnight. Water (200 mL) was added and the mixture extracted with ethyl acetate (500 mL). The organic layer was washed with brine (50 mL), dried over MgSO4, and evaporated in vacuo. The residue was purified by silica gel chromatography using a 20-60% ethyl acetate in heptane gradient as eluent to yield ethyl 4-((5-((4-chlorophenyl)(cyano)methyl)-2-nitrophenyl)amino)piperidine-1-carboxylate as a bright yellow-orange solid.
    • Step 3: ethyl 4-((5-(2-amino-1-(4-chlorophenyl)-2-thioxoethyl)-2-nitrophenyl)amino)piperidine-1-carboxylate
  • To a solution of ethyl 4-((5-((4-chlorophenyl)(cyano)methyl)-2-nitrophenyl)amino)piperidine-1-carboxylate (6.18 g, 13.95 mmol) in EtOH (50 mL) was added phosphorus pentasulfide (6.82 g, 15.35 mmol) and the reaction mixture was heated to 70° C. overnight. The reaction mixture was cooled in an ice-water bath, water (150 mL) was added dropwise and a bright orange oil separated. The mixture was filtered over a bed of CELITE (the orange oil stayed on top) and the oily residue on the filter was washed with water (200 mL). The residue on the filter was dissolved in dichloromethane (200 mL) and the resulting solution was dried over MgSO4, filtered, and evaporated to give 11.3 g of a bright orange oil. The material was purified by silica gel chromatography using a 40-80% ethyl acetate in heptane gradient as eluent, to yield ethyl 4-((5-(2-amino-1-(4-chlorophenyl)-2-thioxoethyl)-2-nitrophenyl)amino)piperidine-1-carboxylate as a bright orange solid.
    • Step 4: ethyl 4-((5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)amino)piperidine-1-carboxylate
  • To a solution of ethyl 4-((5-(2-amino-1-(4-chlorophenyl)-2-thioxoethyl)-2-nitrophenyl)amino)piperidine-1-carboxylate (6.15 g, 12.89 mmol) and bromoacetaldehyde diethylacetal (7.76 mL, 51.57 mmol) in acetic acid (75 mL) was added water (3 mL). The reaction mixture was heated to 100° C. for 30 minutes, cooled to room temperature, and water (150 mL) was added. The mixture was extracted with ethyl acetate (2×250 mL) and the combined organic layers were washed with brine (50 mL). The organic layer was dried over MgSO4, filtered, and evaporated. The residue was purified by silica gel chromatography using a 30-70% ethyl acetate in heptane gradient to yield ethyl 4-((5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)amino)piperidine-1-carboxylateas an orange solid.
    • Step 5: ethyl 4-((2-amino-5-((4-chlorophenyl)(thiazol-2-yl)methyl)phenyl)amino)piperidine-1-carboxylate
  • A solution of ethyl 4-((5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitrophenyl)amino)piperidine-1l-carboxylate (5.9 g, 11.78 mmol) in THF (25 mL) and methanol (25 mL) in a 200 mL Parr flask was purged with nitrogen and Raney nickel (0.5 g, 8.52 mmol) was added. The mixture was hydrogenated at room temperature overnight on a Parr apparatus under 30 psi hydrogen pressure. The catalyst was removed by filtration over CELITE and the solvent was evaporated. The residue was stored under vacuum for 3 days, to yield ethyl 4-((2-amino-5-((4-chlorophenyl)(thiazol-2-yl)methyl)phenyl)amino)piperidine-1-carboxylate as a purple solid.
    • Step 6: ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • A stirred solution of ethyl 4-((2-amino-5-((4-chlorophenyl)(thiazol-2-yl)methyl)phenyl)amino)piperidine-1-carboxylate (147 mg, 0.30 mmol) and cyclopropanecarboxaldehyde (31.59 mg, 0.30 mmol) in DMSO (1 mL) was kept at room temperature in the presence of air overnight. The reaction mixture was diluted with brine and extracted with ethyl acetate. The organic layer was concentrated to a brown oil and purified by chromatography on silica gel using a 10-50% ethyl acetate in heptane gradient followed by 5% methanol in dichloromethane as eluent to yield ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylateas an orange oil. The ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate solid was converted to the corresponding HCl salt with 1N HCl in diethyl ether. MS: 585.2 (M+H+).
    • Example MP-9 ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-isobutyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00404
  • Ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-isobutyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate was prepared according to the procedure as described in Example MP-8 above, substituting isovaleraldehyde for cyclopropanecarboxaldehyde in Step 6. MS: 537.0 (M+H+).
    • Example MP-10 ethyl 6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1-(1-(ethoxycarbonyl)piperidin-4-yl)-1H-benzo[d]imidazole-2-carboxylate
  • Figure US20190031618A1-20190131-C00405
  • Ethyl 6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1-(1-(ethoxycarbonyl)piperidin-4-yl)-1H-benzo[d]imidazole-2-carboxylate was prepared according to the procedure as in Example MP-8 above, substituting ethyl glyoxalate for cyclopropanecarboxaldehyde in Step 6. MS: 553.2 (M+H+).
    • Example MP-11 ethyl 4-(6-((4-chlorophenyl)thiazol-2-yl)methyl)-2-(tetrahydrofuran-2-yl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00406
  • Ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-(tetrahydrofuran-2-yl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate was prepared according to the procedure as described in Example MP-8 above, substituting tetrahydrofuran-3-carboxaldehyde for cyclopropanecarboxaldehyde in Step 6. MS: 551.2 (M+H+).
    • Example MP-12 ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-propyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00407
  • Ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-propyl-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate was prepared according to the procedure as described Example MP-8 above, substituting butyraldehyde for cyclopropanecarboxaldehyde in Step 6. MS: 523.2 (M+H+).
    • Example MP-13 ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-tetrahydro-2H-pyran-4-yl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00408
  • Ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-(tetrahydro-2H-pyran-4-yl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate was prepared according to the procedure as described in Example MP-8 above, substituting tetrahydropyran-4-carboxaldehyde for cyclopropanecarboxaldehyde in Step 6. MS: 565.2 (M+H+).
    • Example MP-14 ethyl 4-(2-(4-chlorophenyl)-6-((4-chlorophenyl)thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00409
  • Ethyl 4-(2-(4-chlorophenyl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate was prepared according to the procedure as described in Example MP-8 above, substituting 4-chlorobenzaldehyde for cyclopropanecarboxaldehyde in Step 6. MS: 591.1 (M+H+).
    • Example MP-15 ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-thiazol-2-yl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00410
  • Ethyl 4-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-(thiazol-2-yl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate was prepared according to the procedure as described in Example MP-8 above, substituting 2-thiazolecarboxaldehyde for cyclopropanecarboxaldehyde in Step 6. MS: 564.0 (M+H+).
    • Example MP-16 ethyl 4-(2-(1-(tert-butoxycarbonyl)azetidin-3-yl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00411
    • and ethyl 4-(2-(azetidin-3-yl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00412
    • Step 1: ethyl 4-(2-(1-(tert-butoxycarbonyl)azetidin-3-yl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Ethyl 4-(2-(1-(tert-butoxycarbonyl)azetidin-3-yl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate was prepared according to the procedure as described in Example MP-8 above, substituting 1-t-butoxycarbonyl-3-azetidinecarboxaldehyde for cyclopropanecarboxaldehyde in Step 6. MS: 636.0 (M+H+).
    • Step 2: ethyl 4-(2-(azetidin-3-yl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Ethyl 4-(2-(1-(tert-butoxycarbonyl)azetidin-3-yl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate (20 mg, 0.030 mmol) was dissolved in 1,4-dioxane (1 mL) and 4N HCl/1,4-dioxane (1 mL, 4 mmol) was added. The resulting solution was stirred for 4 hours at room temperature. The solvent was evaporated to yield ethyl 4-(2-(azetidin-3-yl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate as its corresponding HCl salt. MS: 536.2 (M+H+).
    • Example MP-17 (2-(tert-butyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)bis(4-chlorophenyl)methanol
  • Figure US20190031618A1-20190131-C00413
    • and 6-(bis(4-chlorophenyl methyl)-2-(tert-butyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00414
    • Step 1: N-(4-bromo-2-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)pivalamide
  • A solution of 5-bromo-N1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)benzene-1,2-diamine (362 mg, 0.9 mmol, prepared as described in Example YM-26), pivaloyl chloride (119 mg, 0.99 mmol), and 4-dimethylaminopyridine (121 mg, 0.99 mmol) in dichloromethane (5 mL) was stirred at room temperature overnight. The solution was diluted with saturated aqueous NaHCO3 and the mixture was extracted with dichloromethane. The organic layer was concentrated to yield N-(4-bromo-2-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)pivalamide as an off-white solid, which was sufficiently pure to use in the next step.
    • Step 2: 6-bromo-2-(tert-butyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • A solution of N-(4-bromo-2-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)pivalamide (426 mg, 0.876 mmol) in acetic acid (2 mL) was heated to reflux temperature for 20 hours and then stirred at room temperature for 40 hours. Water (1 mL) was added and the mixture heated to reflux temperature overnight. The solvent was evaporated and the resulting dark oil was quenched with saturated aqueous NaHCO3. The aqueous mixture was extracted with dichloromethane and the organic layer was evaporated. The residue was purified by chromatography on silica gel eluting with a 0-40% ethyl acetate in dichloromethane gradient to yield 6-bromo-2-(tert-butyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole.
    • Step 3: (2-(tert-butyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)bis(4-chlorophenyl)methanol
  • A solution of 6-bromo-2-(tert-butyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (128 mg, 0.27 mmol) and 4,4′-dichlorobenzophenone (68.6 mg, 0.27 mmol) in THF (5 mL) was cooled to −78° C. tert-Butyllithium (1.7M in pentane, 0.40 mL, 0.68 mmol) was added slowly by syringe. The reaction was stirred at −78° C. for 15 minutes and then allowed to warm to room temperature. The reaction mixture was stirred for 2 hours, quenched by addition of saturated aqueous NaHCO3, and extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 0-40% ethyl acetate in dichloromethane gradient to yield (2-(tert-butyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)bis(4-chlorophenyl)methanol as a white solid. MS: 640.1 (M+H+).
    • Step 4: 6-(bis(4-chlorophenyl)methyl)-2-(tert-butyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • A solution of (2-(tert-butyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)bis(4-chlorophenyl)methanol (26 mg, 0.041 mmol), boron trifluoride diethyl etherate (0.006 mL, 0.048 mmol), and triethylsilane (23.6 mg, 0.203 mmol) in dichloromethane (1 mL) was stirred at room temperature for 2 hours. The solution was diluted with saturated aqueous NaHCO3 and the mixture was extracted with dichloromethane. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 0-40% ethyl acetate in dichloromethane gradient to yield 6-(bis(4-chlorophenyl)methyl)-2-(tert-butyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole as a colorless oil. MS: 624.2 (M+H+). The oil was converted to the corresponding HCl salt by reacting with 1N HCl in diethyl ether to yield the HCl salt as a white powder.
    • Example MP-18 ethyl 4-(2-(tert-butyl)-6-((4-chlorophenyl)thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00415
  • Ethyl 4-(2-(tert-butyl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-1-yl)piperidine-1-carboxylate was prepared according to the procedure as described in Example MP-8 above, substituting pivaldehyde for cyclopropanecarboxaldehyde in Step 6. MS: 537.2 (M+H+).
    • Example MP-19 bis(4-chlorophenyl)(2-(hydroxymethyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • Figure US20190031618A1-20190131-C00416
    • Step 1: 6-bromo-2-(((tert-butyldimethylsilyl)oxy)methyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • A solution of 5-bromo-N1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)benzene-1,2-diamine (484 mg, 1.20 mmol, prepared as described in Example YM-26) and tert-butyldimethylsilyloxyacetaldehyde (0.255 mL, 1.20 mmol) in DMSO (3 mL) was stirred at room temperature overnight open to air. The solution was diluted with brine and the mixture was extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 0-25% ethyl acetate in dichloromethane gradient to yield 6-bromo-2-(((tert-butyldimethylsilyl)oxy)methyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole as an off-white solid.
    • Step 2: (2-(((tert-butyldimethylsiyl)oxy)methyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)bis(4-chlorophenyl)methanol
  • A solution of 6-bromo-2-(((tert-butyldimethylsilyl)oxy)methyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (195 mg, 0.35 mmol) and 4,4′-dichlorobenzophenone (88.0 mg, 0.35 mmol) in THF (3 mL) was cooled to −78° C. tert-Butyllithium (1.7M in pentane, 0.53 mL, 0.88 mmol) was added slowly by syringe. The reaction was stirred at −78° C. for 15 minutes and then allowed to warm to room temperature. The reaction mixture was stirred for 2 hours, quenched by addition of saturated aqueous NaHCO3, and extracted with ethyl acetate. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 0-40% ethyl acetate in dichloromethane gradient to yield (2-(((tert-butyldimethylsilyl)oxy)methyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)bis(4-chlorophenyl)methanol as a yellow oil.
    • Step 3: bis(4-chlorophenyl)(2-(hydroxymethyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • A solution of (2-(((tert-butyldimethylsilyl)oxy)methyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)bis(4-chlorophenyl)methanol (50 mg, 0.069 mmol), triethylsilane (39.9 mg, 0.343 mmol), and boron trifluoride diethyl etherate (0.017 mL, 0.137 mmol) in dichloromethane (2 mL) was stirred at room temperature overnight. The reaction was quenched with saturated aqueous NaHCO3 and the mixture was extracted with dichloromethane. The organic layer was concentrated and the residue purified by chromatography on silica gel eluting with a 0-40% ethyl acetate in dichloromethane gradient to yield bis(4-chlorophenyl)(2-(hydroxymethyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol as a white solid. MS: 614.1 (M+H+).
    • Example DL-1 6-(bis(4-chlorophenyl)methyl)-2-cyclobutyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00417
    • Step 1: methyl 2,2-bis(4-chlorophenyl)acetate
  • A solution of 2,2-bis(4-chlorophenyl)acetic acid (4 g, 13.9 mmol) and H2SO4 (0.37 mL, 7.0 mmol) in MeOH (20 mL) was heated at reflux temperature overnight. The solution was concentrated, water added to the residue, and the mixture extracted with ethyl ether. The organic layer was dried over Na2SO4 and concentrated in vacuo to yield methyl 2,2-bis(4-chlorophenyl)acetate as a clear oil. The residue was purified by chromatography on silica gel eluting with a 0-70% dichloromethane:heptane gradient to yield methyl 2,2-bis(4-chlorophenyl)acetate as a clear oil, which overtime became a white solid.
    • Step 2: methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate
  • To a solution of methyl 2,2-bis(4-chlorophenyl)acetate (1.92 g, 6.51 mmol) and 2,4-difluoro-1-nitrobenzene (0.76 mL, 6.83 mmol) in THF (40 mL) at −37° C. to −32° C. was added t-BuOK (1M in THF, 7.2 mL, 7.2 mmol) over 10 minutes. The reaction was allowed to warm slowly to room temperature and then stirred overnight. To the reaction was added ethyl acetate and the resulting organic mixture was washed with aq NH4Cl and brine. The organic layer was dried over MgSO4 and concentrated in vacuo to yield a red oil. The residue was purified by silica gel chromatography with a 0-70% dichloromethane:heptane gradient as eluent to yield methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate as a pale yellow oil.
    • Step 3: methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-(((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)acetate
  • To a solution of methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (0.45 g, 1.036 mmol) and diisopropylethylamine (0.446 mL, 2.591 mmol) in CH3CN (2.25 mL) at room temperature was added 4-aminomethyl-1-trifluoromethylsulfonyl]piperidine hydrochloride (396.9 mg, 1.24 mmol). The resulting reaction mixture was heated to reflux temperature for 4 hours and the solvent was removed in vacuo. The residue was purified by silica gel chromatography using a 50-100% dichloromethane:heptane gradient as eluent to yield methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-(((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)acetate as a yellow solid.
    • Step 4: methyl 2-(4-amino-3-(((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate
  • To a solution of methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-(((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)acetate (0.62 g, 0.94 mmol) in MeOH (200 mL) was added Raney nickel catalyst (200 mg, 3.41 mmol) and the mixture was placed under 40 psi hydrogen and left overnight. The reaction mixture was filtered through CELITE and the solvent evaporated in vacuo to yield methyl 2-(4-amino-3-(((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate as an off-white solid.
    • Step 5: methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclobutyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate
  • A rapidly stirred solution of methyl 2-(4-amino-3-(((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate (0.19 g, 0.30 mmol) and cyclobutanecarboxaldehyde (0.052 g, 0.60 mmol) in DMSO (1 mL) was kept at room temperature in the presence of air for 4 days. The reaction mixture was purified by silica gel chromatography using a 0-2% methanol:dichloromethane gradient as eluent to yield methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclobutyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate.
    • Step 6: 2,2-bis(4-chlorophenyl)-2-(2-cyclobutyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid
  • A solution of methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclobutyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate (180 mg, 0.26 mmol) in 3N NaOH aqueous solution (2 mL, 6 mmol) and methanol (8 mL) was heated at 50° C. The reaction was cooled to room temperature and 1N HCl aqueous solution was added (8 mL). The mixture was extracted with EtOAc and the organic solution was washed with brine and evaporated in vacuo to yield 2,2-bis(4-chlorophenyl)-2-(2-cyclobutyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid as a pale green oil.
    • Step 7: 6-(bis(4-chlorophenyl)methyl)-2-cyclobutyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazole
  • A solution of 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid (360 mg, 0.53 mmol) and DBU (0.2 mL, 1.34 mmol) in toluene (10 mL) was heated at 90° C. overnight. After evaporation of the solvent, the residue was purified by reverse phase HPLC and the fractions containing the product were lyophilized to yield 6-(bis(4-chlorophenyl)methyl)-2-cyclobutyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazole trifluoroacetate salt as a white solid. MS: 636.2 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 7.89 (d, J=8.6 Hz, 1H), 7.33-7.28 (m, 5H), 6.98 (br d, J=8.3 Hz, 4H), 6.96 (br s, 1H), 5.68 (s, 1H), 4.19-3.95 (m, 4H), 3.81 (td, J=8.7, 17.7 Hz, 1H), 2.92 (brt, J=12.7, 2H), 2.86-2.74 (m, 2H), 2.52 (d, J=8.6 Hz, 2H), 2.29-2.19 (m, 1H), 2.19-2.10 (m, 1H), 1.95-1.83 (m, 1H), 1.66 (br d, J=12.5 Hz, 2H), 1.44-1.28 (m, 2H).
    • Example DL-2 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00418
    • Step 1: methyl 2-(3-chloro-4-nitrophenyl)-2,2-bis(4-chlorophenyl)acetate
  • To a solution of compound methyl 2,2-bis(4-chlorophenyl)acetate (5.06 g, 17.14 mmol), prepared as described in Example DL-1, and 2-chloro-4-fluoro-1-nitrobenzene (3.16 g, 18.00 mmol) in THF (100 mL) at −45° C. to −40° C. was added t-BuOK (1M in THF, 18.86 mL, 18.86 mmol) over 5 minutes. The reaction was allowed to warm slowly to room temperature and then stirred overnight. To the reaction was added ethyl acetate and the resulting organic mixture was washed with aq NH4Cl and brine. The organic layer was dried over MgSO4 and concentrated in vacuo to yield a red oil. The residue was purified by silica gel chromatography using a 25-60% dichloromethane:heptane gradient as eluent to yield methyl 2-(3-chloro-4-nitrophenyl)-2,2-bis(4-chlorophenyl)acetate as a clear viscous oil.
    • Step 2: 5-(bis(4-chlorophenyl)methyl)-2-nitro-N-(4-(trifluoromethyl)phenethyl)aniline
  • To a solution of methyl 2-(3-chloro-4-nitrophenyl)-2,2-bis(4-chlorophenyl)acetate (600 mg, 1.33 mmol) and 4-trifluoromethylphenethylamine (626 mg, 2.66 mmol) in 1,4-dioxane (3 mL) was added diisopropylethylamine (0.574 mL, 3.33 mmol) and DBU (0.497 mL, 3.33 mmol). The resulting reaction mixture was heated under argon at 95° C. for 4 days. After evaporation of the solvent, ethyl acetate was added to the residue and the organic mixture was washed with water, aqueous NaHCO3, and brine. The organic layer was evaporated in vacuo to yield a yellow oil. The residue was purified by silica gel chromatography to yield 5-(bis(4-chlorophenyl)methyl)-2-nitro-N-(4-(trifluoromethyl)phenethyl)aniline as a yellow oil.
    • Step 3: 5-(bis(4-chlorophenyl)methyl)-N1-(4-(trifluoromethyl)phenethyl)benzene-1,2-diamine
  • To a solution of 5-(bis(4-chlorophenyl)methyl)-2-nitro-N-(4-(trifluoromethyl)phenethyl)aniline (530 mg, 0.97 mmol) in MeOH (200 mL) was added 5% Pd/C sulfide (100 mg) and the mixture was placed under 60 psi hydrogen at room temperature for 24 hours. The reaction mixture was filtered through CELITE and the solvent evaporated in vacuo to yield 5-(bis(4-chlorophenyl)methyl)-N1-(4-(trifluoromethyl)phenethyl)benzene-1,2-diamine as a dark solid.
    • Step 4: 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazole
  • A rapidly stirred solution of 5-(bis(4-chlorophenyl)methyl)-N1-(4-(trifluoromethyl)phenethyl)benzene-1,2-diamine (440 mg, 0.85 mmol) and cyclopropanecarboxaldehyde (0.13 mL, 1.71 mmol) in DMSO (2 mL) was kept at room temperature in the presence of air for 3 days. The reaction mixture was purified by reverse phase HPLC and the fractions containing the product were lyophilized to yield 0.24 g of compound 2 trifluoroacetate salt as an off-white solid. The free base of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazole was prepared by partitioning the solid between ethyl acetate and aqueous NaHCO3, separating the organic layer, and removing the solvent in vacuo. The free base was purified by silica gel chromatography to yield 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazole as a clear oil. Addition of 0.30 mL 1N HCl in Et2O and evaporation under vacuum yielded 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazole as its corresponding HCl salt. MS: 565.2 (M+H+); 1H NMR (400 MHz, DMSO-d6) δ: 7.66-7.56 (m, 3H), 7.51 (s, 1H), 7.42 (d, J=8.6 Hz, 4H), 7.36 (br d, J=7.6 Hz, 2H), 7.23 (br d, J=8.6 Hz, 1H), 7.11 (d, J=8.6 Hz, 4H), 5.83 (s, 1H), 4.77 (br t, J=6.6 Hz, 2H), 3.20 (br t, J=6.6 Hz, 2H), 2.48-2.41 (m, 1H), 1.36-1.22 (m, 4H).
    • Example DL-3 6-(bis(4-chlorophenyl)methyl)-2-ethyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00419
  • 6-(Bis(4-chlorophenyl)methyl)-2-ethyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazole was prepared according to the procedure as described in Example DL-1 above substituting propionaldehyde for cyclobutanecarboxaldehyde in Step 5. MS: 609.9 (M+H+); 1H NMR (400 MHz, DMSO-d6) δ: 7.79 (s, 1H), 7.74 (d, J=8.6 Hz, 1H), 7.43-7.38 (m, 4H), 7.31 (d, J=8.1 Hz, 1H), 7.17 (d, J=8.6 Hz, 4H), 5.88 (s, 1H), 4.34 (brd, J=7.3 Hz, 2H), 3.79 (br d, J=13.2 Hz, 2H), 3.18 (q, J=7.5 Hz, 2H), 3.06 (br t, J=12.6, 2H), 2.12-1.99 (m, 1H), 1.64 (brd, J=11.5 Hz, 2H), 1.42 (t, J=7.5 Hz, 3H), 1.35 (br d, J=11.2 Hz, 2H).
    • Example DL-4 2-((1-(3-chlorohenethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00420
    • Step 1: 5-chloro-N-(3-chlorophenethyl)-2-nitroaniline
  • To a solution of 2,4-dichloronitrobenzene (6.43 g, 32.49 mmol) and m-chlorophenethylamine (5.73 g, 35.73 mmol) in acetonitrile (15 mL) was added a solution of triethylamine (5.418 mL, 38.98 mmol) in acetonitrile (15 mL). The reaction mixture was stirred at room temperature overnight, heated to 50° C. for 24 hours, and then heated at reflux temperature for 48 hours. The solvent was evaporated, triethylamine (5 mL) in acetonitrile (10 mL) was added to the residue, and the reaction mixture heated at reflux temperature for another 2 hours. Water was added (20 mL), the resulting mixture stirred for 30 minutes, and 5-chloro-N-(3-chlorophenethyl)-2-nitroaniline was isolated by filtrations an orange solid.
    • Step 2: 2-(3-((3-chlorophenethyl)amino)-4-nitrophenyl)-2-(4-chlorophenyl)acetonitrile
  • To a stirred solution of 4-chlorophenylacetonitrile (4.34 g, 27.50 mmol) in THF (40 mL) cooled to 0° C. was added t-BuOK (1M in t-BuOH, 37.50 mL, 37.50 mmol). After 10 minutes 5-chloro-N-(3-chlorophenethyl)-2-nitroaniline (7.78 g, 25.00 mmol) was added to the reaction mixture. The reaction mixture was allowed to warm to room temperature and then stirred overnight. To the thick dark solution was added THF (20 mL), 4-chlorophenylacetonitrile (0.90 g), and isopropyl alcohol (5 mL). 2N HCl (25 mL) was added and the mixture extracted with ethyl acetate. The organic layer was washed with brine, dried over MgSO4, and evaporated in vacuo to yield a reddish oil. The residue was purified by silica gel chromatography using a 0-80% dichloromethane:heptane gradient as eluent to yield 2-(3-((3-chlorophenethyl)amino)-4-nitrophenyl)-2-(4-chlorophenyl)acetonitrile.
    • Step 3: 2-(3-((3-chlorophenethyl)amino)-4-nitrophenyl)-2-(4-chlorophenyl)ethanethioamide
  • To a solution of 2-(3-((3-chlorophenethyl)amino)-4-nitrophenyl)-2-(4-chlorophenyl)acetonitrile (3.54 g, 8.30 mmol) in EtOH (90 mL) was added phosphorus pentasulfide (7.38 g, 16.61 mmol) and the reaction mixture was heated to reflux temperature for 24 hours. An additional 2.9 g of phosphorus pentasulfide was added and the resulting mixture was heated to reflux temperature overnight. The reaction mixture was poured into ice water and extracted with ethyl acetate. The organic layer was washed with water, brine, and dried over MgSO4. The solvent was removed in vacuo and the residue was purified by silica gel chromatography using a 50-100% dichloromethane:heptane gradient as eluent to yield 2-(3-((3-chlorophenethyl)amino)-4-nitrophenyl)-2-(4-chlorophenyl)ethanethioamide as a red amorphous solid.
    • Step 4: N-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitroaniline
  • To a solution of 2-(3-((3-chlorophenethyl)amino)-4-nitrophenyl)-2-(4-chlorophenyl)ethanethioamide (3.45 g, 7.49 mmol) in acetic acid (40 mL) was added water (1.5 mL) and bromoacetaldehyde diethylacetal (4.65 mL, 29.98 mmol). The reaction mixture was heated to 100° C. for 30 minutes and then poured into water (200 mL) and the resulting mixture was extracted with ethyl ether. The organic layer was washed with water (4×), saturated NaHCO3, and brine and then dried over MgSO4. Removal of the solvent in vacuo a residue, which was purified by silica gel chromatography using a 50-100% dichloromethane:heptane gradient to yield N-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitroanilineas a red oil.
    • Step 5: N1-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine
  • To a 10 mL graduated cylinder was added 8 mL of Raney nickel (50% slurry in water). The catalyst was washed twice with EtOH and the solvent decanted. The catalyst was washed into a hydrogenation flask with ethyl alcohol (60 mL) under an argon atmosphere and additional ethyl alcohol (48 mL) was added. N-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitroaniline (2.61 g, 5.39 mmol) dissolved in THF (24 mL) was added to flask and the reaction mixture was placed under a hydrogen atmosphere for 72 hours. The catalyst was filtered off and the filtrate was evaporated in vacuo to yield a residue. Purification by silica gel chromatography using a 0-2% 1:1 MeOH:DCM/DCM gradient yielded NI-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine as a light red oil.
    • Step 6: 2-((1-(3-chlorophenethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • A rapidly stirred solution of N1-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine (100 mg, 0.22 mmol) and cyclopropanecarboxaldehyde (0.034 mL, 0.44 mmol) in DMSO (1 mL) was kept at room temperature in the presence of air for 24 hours. The reaction mixture was purified by reverse phase HPLC and the fractions containing the product were lyophilized to yield 2-((1-(3-chlorophenethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazoletrifluoroacetate salt as a white solid. MS: 504.0 (M+H+); 1H NMR (400 MHz, DMSO-d6) δ: 7.95-7.81 (m, 1H), 7.79-7.71 (m, 2H), 7.65 (br d, J=8.6 Hz, 1H), 7.49-7.38 (m, 3H), 7.36-7.29 (m, 3H), 7.25 (br d, J=3.9 Hz, 2H), 7.13-7.06 (m, 1H), 6.18 (s, 1H), 4.74 (br t, J=6.7 Hz, 2H), 3.13 (br t, J=6.8 Hz, 2H), 2.48-2.41 (m, 1H), 1.35-1.18 (m, 4H).
    • Example DL-5 6-(bis(4-chlorophenyl)methyl)-1-(3-chlorophenethyl)-2-ethyl-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00421
    • Step 1: methyl 2-(3-((3-chlorophenethyl)amino)-4-nitrophenyl)-2,2-bis(4-chlorophenyl)acetate
  • To a solution of methyl 2-(3-chloro-4-nitrophenyl)-2,2-bis(4-chlorophenyl)acetate (400 mg, 0.89 mmol), prepared as described in Example DL-2 above, and potassium fluoride (258 mg, 4.44 mmol) in acetonitrile (4 mL) was added m-chlorophenethylamine (0.19 mL, 1.33 mmol) and diisopropylethylamine (0.31 mL, 1.78 mmol) and the resulting mixture placed under an argon atmosphere. The reaction mixture was heated to reflux temperature for 72 hours. An additional 0.191 mL of m-chlorophenethylamine was added and the reaction mixture was heated to reflux temperature for an additional 48 hours. The solvent was evaporated in vacuo, water was added to the residue, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and brine and then dried over Na2SO4. Evaporation of the solvent in vacuo yielded a residue as a reddish oil, which was purified by silica gel chromatography using a 30-70% dichloromethane: heptane gradient to yield methyl 2-(3-((3-chlorophenethyl)amino)-4-nitrophenyl)-2,2-bis(4-chlorophenyl)acetate as a yellow solid.
    • Step 2: methyl 2-(4-amino-3-((3-chlorophenethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate
  • To a solution of methyl 2-(3-((3-chlorophenethyl)amino)-4-nitrophenyl)-2,2-bis(4-chlorophenyl)acetate (200 mg, 0.35 mmol) in MeOH (100 mL) was added Raney nickel catalyst (100 mg, 1.70 mmol) and the mixture was placed under 35 psi hydrogen and left overnight. The reaction mixture was filtered through CELITE and the solvent evaporated in vacuo to yield methyl 2-(4-amino-3-((3-chlorophenethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate.
    • Step 3: methyl 2-(1-(3-chlorophenethyl)-2-ethyl-1H-benzo[d]imidazol-6-yl)-2,2-bis(4-chlorophenyl)acetate
  • A solution of methyl 2-(4-amino-3-((3-chlorophenethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate (200 mg, 0.37 mmol) and propionaldehyde (0.055 mL, 0.74 mmol) in DMSO (2 mL) was stirred at room temperature in the presence of air for 3 days. The reaction mixture was purified by reverse phase HPLC and lyophilized to yield methyl 2-(1-(3-chlorophenethyl)-2-ethyl-1H-benzo[d]imidazol-6-yl)-2,2-bis(4-chlorophenyl)acetate as a white solid.
    • Step 4: 2-(1-(3-chlorophenethyl)-2-ethyl-1H-benzo[d]imidazol-6-yl)-2,2-bis(4-chlorophenyl)acetic acid
  • A solution of methyl 2-(1-(3-chlorophenethyl)-2-ethyl-1H-benzo[d]imidazol-6-yl)-2,2-bis(4-chlorophenyl)acetate (120 mg, 0.21 mmol) in 3N NaOH aqueous solution (2.04 mL, 6.13 mmol) and methanol (8 mL) was heated at 45° C. overnight. The solvent was removed in vacuo and then water and 6 mL 1N HCl was added. The mixture was extracted with ethyl acetate and the organic layer was dried over MgSO4 and evaporated in vacuo to yield 2-(1-(3-chlorophenethyl)-2-ethyl-1H-benzo[d]imidazol-6-yl)-2,2-bis(4-chlorophenyl)acetic acid as a yellow oil.
    • Step 5: 6-(bis(4-chlorophenyl)methyl)-1-(3-chlorophenethyl)-2-ethyl-1H-benzo[d]imidazole
  • A solution of 2-(1-(3-chlorophenethyl)-2-ethyl-1H-benzo[d]imidazol-6-yl)-2,2-bis(4-chlorophenyl)acetic acid (100 mg, 0.18 mmol) and DBU (0.11 mL, 0.71 mmol) in toluene (10 mL) was heated at 90° C. overnight under argon. An additional 0.104 mL of DBU was added and the reaction mixture was heated at 90° C. for another 3 hours. After evaporation of the solvent, the residue was purified by reverse phase HPLC and the fractions containing the product were lyophilized to yield 6-(bis(4-chlorophenyl)methyl)-1-(3-chlorophenethyl)-2-ethyl-1H-benzo[d]imidazoletrifluoroacetate salt as a white solid. MS: 520.8 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 7.81 (d, J=8.6 Hz, 1H), 7.37-7.29 (m, 5H), 7.25-7.20 (m, 1H), 7.20-7.15 (m, 1H), 7.01 (t, J=1.8 Hz, 1H), 6.99-6.93 (m, 4H), 6.89 (s, 1H), 6.67 (d, J=7.6 Hz, 1H), 5.63 (s, 1H), 4.39 (t, J=6.8 Hz, 2H), 3.04 (t, J=6.6 Hz, 2H), 2.93 (q, J=7.6, 2H), 1.41 (t, J=7.3 Hz, 3H).
    • Example DL-6 bis(4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • Figure US20190031618A1-20190131-C00422
  • To a solution of 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole hydrochloride salt (130 mg, 0.202 mmol) in DMSO (6 mL) was added 3N NaOH (0.4 mL) and the reaction mixture was stirred in air for 72 hours. Water was added and the mixture was extracted with ethyl acetate. The organic layer was evaporated in vacuo, the residue purified by reverse phase HPLC, and fractions containing the product were lyophilized to yield bis(4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol as a white solid. MS: 624.1 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 7.84 (s, 1H), 7.74 (d, J=8.6 Hz, 1H), 7.32-7.28 (m, 4H), 7.26-7.22 (m, 1H), 7.19-7.14 (m, 4H), 4.88 (ddd, J=4.0, 8.6, 12.6 Hz, 1H), 4.24 (br d, J=13.6 Hz, 2H), 3.31 (br t, J=12.1 Hz, 2H), 2.55 (dq, J=4.8, 12.7 Hz, 2H), 2.21-2.10 (m, 3H), 1.57-1.49 (m, 2H), 1.49-1.37 (m, 2H).
    • Example DL-7 6-(bis(4-chlorophenyl)methyl)-2-ethyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00423
    • Step 1: methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-((4-(trifluoromethyl)phenethyl)amino)phenyl)acetate
  • A solution of compound methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (100 mg, 0.23 mmol), prepared as described in Example DL-2 above, p-trifluoromethylphenethylamine hydrochloride (90.5 mg, 0.35 mmol), and potassium carbonate (95.5 mg, 0.69 mmol) in DMSO (1 mL) was degassed with nitrogen and heated at 80° C. overnight. Ethyl ether was added and the mixture was washed with water and brine. The solvent was removed in vacuo to yield a yellow semi-solid, which was purified by reverse phase HPLC and fractions containing the product were lyophilized to yield methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-((4-(trifluoromethyl)phenethyl)amino)phenyl)acetate as a yellow oil.
    • Step 2: methyl 2-(4-amino-3-((4-(trifluoromethyl)phenethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate
  • To a solution of methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-((4-(trifluoromethyl)phenethyl)amino)phenyl)acetate (100 mg, 0.17 mmol) in MeOH (100 mL) was added Raney nickel catalyst (200 mg, 3.41 mmol) and the mixture was placed under 30 psi hydrogen at room temperature for 4 hours. The reaction mixture was filtered through CELITE and the solvent evaporated in vacuo to yield methyl 2-(4-amino-3-((4-(trifluoromethyl)phenethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate as a white solid.
    • Step 3: methyl 2,2-bis(4-chlorophenyl)-2-(2-ethyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazol-6-yl)acetate
  • A solution of methyl 2-(4-amino-3-((4-(trifluoromethyl)phenethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate (40 mg, 0.07 mmol) and propionaldehyde (0.01 mL, 0.14 mmol) in DMSO (0.5 mL) was rapidly stirred at room temperature in the presence of air overnight. An additional 0.015 mL of propionaldehyde was added and the reaction mixture rapidly stirred overnight. The reaction mixture was purified by reverse phase HPLC and the fractions containing product were lyophilized to yield methyl 2,2-bis(4-chlorophenyl)-2-(2-ethyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazol-6-yl)acetate.
    • Step 4: 2,2-bis(4-chlorophenyl)-2-(2-ethyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazol-6-yl)acetic acid
  • A solution of methyl 2,2-bis(4-chlorophenyl)-2-(2-ethyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazol-6-yl)acetate (50 mg, 0.08 mmol) in 3N NaOH aqueous solution (1 mL, 3 mmol) and methanol (4 mL) was heated at 45° C. overnight. 2N HCl (1.5 mL) was added and the mixture was extracted with ethyl acetate. The organic layer was evaporated in vacuo to yield a first batch of 2,2-bis(4-chlorophenyl)-2-(2-ethyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazol-6-yl)acetic acid. The aqueous layer was also evaporated in vacuo. The residue was washed with acetonitrile, the solvent was decanted, and then evaporated to yield additional 2,2-bis(4-chlorophenyl)-2-(2-ethyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazol-6-yl)acetic acid.
    • Step 5: 6-(bis(4-chlorophenyl)methyl)-2-ethyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazole
  • A solution of 2,2-bis(4-chlorophenyl)-2-(2-ethyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazol-6-yl)acetic acid (30 mg, 0.05 mmol) and DBU (0.017 mL, 0.12 mmol) in toluene (2 mL) was heated at 90° C. for 3 hours under argon. An additional 34.6 μL of DBU was added and the reaction mixture was heated at reflux temperature overnight. After evaporation of the solvent, the residue was purified by reverse phase HPLC and the fractions containing the product were lyophilized to yield 6-(bis(4-chlorophenyl)methyl)-2-ethyl-1-(4-(trifluoromethyl)phenethyl)-1H-benzo[d]imidazole trifluoroacetate salt as a clear oil. MS: 552.9 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 7.89 (d, J=8.6 Hz, 1H), 7.56 (d, J=8.1 Hz, 2H), 7.33-7.28 (m, 5H), 7.03 (d, J=7.8 Hz, 2H), 6.97 (d, J=8.6 Hz, 4H), 6.88 (s, 1H), 5.64 (s, 1H), 4.38 (t, J=7.2 Hz, 2H), 3.10 (br t, J=7.1 Hz, 2H), 2.94 (q, J=7.7 Hz, 2H), 1.41 (t, J=7.6 Hz, 3H).
    • Example DL-8 2-((4-chlorophenyl 1-(3-chlorophenyl)-2-ethyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00424
    • Step 1: 5-chloro-N-(3-chlorophenyl)-2-nitroaniline
  • To a solution of 2,4-dichloronitrobenzene (7 g, 35.36 mmol) and m-chloroaniline (4.13 mL, 38.90 mmol) in DMSO (2 mL) was added diisopropylethylamine (7.31 mL, 42.44 mmol). The reaction mixture was heated at 120° C. for 10 days. Water was added and the resulting mixture was extracted with ethyl ether. The organic layer was washed with brine and dried over Na2SO4. The solvent was removed in vacuo to yield a red oil. The oil was heated with heptane and the solvent decanted (3×). Dichloromethane was added to make it homogenous and the resulting orange solution was purified by silica gel chromatography using a 0-40% dichloromethane:heptane gradient to yield 5-chloro-N-(3-chlorophenyl)-2-nitroaniline as an orange solid.
    • Step 2: 2-(4-chlorophenyl)-2-(3-((3-chlorophenyl)amino)-4-nitrophenyl)acetonitrile
  • To a stirred solution of 4-chlorophenylacetonitrile (2.20 g, 13.90 mmol) in THF (75 mL) and isopropyl alcohol (25 mL) cooled to 0° C. was added t-BuOK (1M in t-BuOH, 23.17 mL, 23.17 mmol). After 10 minutes 5-chloro-N-(3-chlorophenyl)-2-nitroaniline (3.28 g, 11.59 mmol) was added to the reaction mixture. The reaction mixture was allowed to warm to room temperature, stirred for 1.5 hours at room temperature, and then heated at 50° C. overnight. 1M HCl in ethyl ether (30 mL) was added and the solvent evaporated in vacuo. The residue was dissolved in ethyl acetate and the organic mixture washed with NaHCO3 and brine, and then dried over Na2SO4. The solvent was evaporated in vacuo and the residue purified by silica gel chromatography using a 25-75% dichloromethane:heptane gradient to yield 2-(4-chlorophenyl)-2-(3-((3-chlorophenyl)amino)-4-nitrophenyl)acetonitrile as a red oil.
    • Step 3: 2-(4-chlorophenyl)-2-(3-((3-chlorophenyl)amino)-4-nitrophenyl)ethanethioamide
  • To a solution of 2-(4-chlorophenyl)-2-(3-((3-chlorophenyl)amino)-4-nitrophenyl)acetonitrile (3.4 g, 8.53 mmol) in EtOH (85 mL) under argon was added phosphorus pentasulfide (7.59 g, 17.08 mmol) and the reaction mixture was heated to reflux temperature for 24 hours. The reaction mixture was poured into ice water and extracted with ethyl acetate (2×). The organic layer was dried over Na2SO4. The solvent was removed in vacuo and the residue was purified by silica gel chromatography using a 50-100% dichloromethane:heptane gradient as eluent to yield 2-(4-chlorophenyl)-2-(3-((3-chlorophenyl)amino)-4-nitrophenyl)ethanethioamide as a red amorphous solid.
    • Step 4: N-(3-chlorophenyl)-5-((4-chlorophenyl)(thiazol-2-yl)(methyl)-2-nitroaniline
  • To a solution of 2-(4-chlorophenyl)-2-(3-((3-chlorophenyl)amino)-4-nitrophenyl)ethanethioamide (4.55 g, 10.52 mmol) in acetic acid (50 mL) was added water (2 mL) and bromoacetaldehyde diethylacetal (6.53 mL, 42.10 mmol). The reaction mixture was heated at 100° C. for 30 minutes and then poured into water (200 mL) and the resulting mixture was extracted with ethyl acetate. The organic layer was washed with water, saturated NaHCO3, and brine and then dried over MgSO4. Removal of the solvent in vacuo yielded N-(3-chlorophenyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitroaniline as a red oil.
    • Step 5: N1-(3-chlorophenyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine
  • To a 10 mL graduated cylinder was added 6 mL of Raney nickel (50% slurry in water). The catalyst was washed with EtOH and the solvent decanted. The catalyst was washed into a hydrogenation flask with ethyl alcohol (30 mL). N-(3-chlorophenyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitroaniline (4.37 g, 9.58 mmol) dissolved in EtOH (120 mL) and THF (24 mL) was added to flask and the reaction mixture was placed under a hydrogen atmosphere for 2 hours. The catalyst was filtered off and the filtrate was evaporated in vacuo to yield N1-(3-chlorophenyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine as a tan foam.
    • Step 6: 2-((4-chlorophenyl)(1-(3-chlorophenyl)-2-ethyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • A solution of N1-(3-chlorophenyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine (100 mg, 0.24 mmol) and propionaldehyde (0.035 mL, 0.47 mmol) in DMSO (1 mL) was rapidly stirred at room temperature in the presence of air for 72 hours. Acetonitrile (0.5 mL) was added and the reaction mixture was purified by reverse phase HPLC. The fractions containing the product were lyophilized to yield 2-((4-chlorophenyl)(1-(3-chlorophenyl)-2-ethyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole trifluoroacetate salt as a gummy gray solid. MS: 464.1 (M+H+); 1H NMR (400 MHz, DMSO-d6) δ: 7.85-7.83 (m, 1H), 7.83-7.78 (m, 2H), 7.78-7.71 (m, 2H), 7.67 (d, J=3.4 Hz, 1H), 7.66-7.63 (m, 1H), 7.46 (d, J=8.3 Hz, 1H), 7.42-7.34 (m, 3H), 7.34-7.27 (m, 2H), 6.23 (s, 1H), 2.87 (q, J=7.3 Hz, 2H), 1.27 (t, J=7.6 Hz, 3H).
    • Example DL-9 (R)-2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-1-phenylethanol
  • Figure US20190031618A1-20190131-C00425
    • Step 1: methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate
  • To a solution of methyl 2,2-bis(4-chlorophenyl)acetate (1.92 g, 6.51 mmol), prepared as described in Example DL-1 above, and 2,4-difluoro-1-nitrobenzene (0.76 mL, 6.83 mmol) in THF (40 mL) at −60° C. to −50° C. was added LHMDS (1M in THF, 7.2 mL, 7.2 mmol) over 10 minutes. The reaction was allowed to warm slowly to room temperature and then stirred overnight. To the reaction was added ethyl ether and the resulting organic mixture was washed with water, aq NH4Cl, and brine. The organic layer was dried over MgSO4 and concentrated in vacuo to yield a yellow oil. The residue was purified by silica gel chromatography with a 0-70% dichloromethane:heptane gradient as eluent to yield methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate as a pale yellow oil.
    • Step 2: (R)-methyl 2,2-bis(4-chlorophenyl)-2-(3-((2-hydroxy-2-phenylethyl)amino)-4-nitrophenyl)acetate
  • A solution of methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (300 mg, 0.69 mmol), (R)-2-amino-1-phenylethanol (126.4 mg, 0.83 mmol), and DIPEA (0.238 mL, 1.38 mmol) in acetonitrile (3 mL) was heated at reflux temperature for 48 hours. The solvent was removed in vacuo and the residue was purified by silica gel chromatography with 0-2% methanol:dichloromethane gradient as eluent to yield (R)-methyl 2,2-bis(4-chlorophenyl)-2-(3-((2-hydroxy-2-phenylethyl)amino)-4-nitrophenyl)acetate as a yellow oil.
    • Step 3: (R)-methyl 2-(4-amino-3-((2-hydroxy-2-phenylethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate
  • To a solution of (R)-methyl 2,2-bis(4-chlorophenyl)-2-(3-((2-hydroxy-2-phenylethyl)amino)-4-nitrophenyl)acetate (260 mg, 0.47 mmol) in MeOH (100 mL) was added 5% Pd/C sulfide (100 mg) and the mixture was placed under 45 psi hydrogen at room temperature for 3 hours. The reaction mixture was filtered through CELITE and the solvent evaporated in vacuo to yield (R)-methyl 2-(4-amino-3-((2-hydroxy-2-phenylethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate as a yellowish oil.
    • Step 4: (R)-methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxy-2-phenylethyl)-1H-benzo[d]imidazol-6-yl)acetate
  • A solution of (R)-methyl 2-(4-amino-3-((2-hydroxy-2-phenylethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate (220 mg, 0.42 mmol) and cyclopropanecarboxaldehyde (59.14 mg, 0.84 mmol) in DMSO (2 mL) was rapidly stirred at room temperature in the presence of air overnight. An additional 0.015 mL of propionaldehyde was added and the reaction mixture rapidly stirred overnight. Ethyl acetate was added and the organic mixture was washed with water and brine. The organic layer was dried over MgSO4 and evaporated in vacuo to yield a residue as a dirty yellow oil. The reaction mixture was purified by silica gel chromatography to yield (R)-methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxy-2-phenylethyl)-1H-benzo[d]imidazol-6-yl)acetate.
    • Step 5: (R)-2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxy-2-phenylethyl)-1H-benzo[d]imidazol-6-yl)acetic acid
  • A solution of (R)-methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxy-2-phenylethyl)-1H-benzo[d]imidazol-6-yl)acetate (160 mg, 0.28 mmol) in 3N NaOH aqueous solution (1 mL, 3 mmol) and methanol (4 mL) was stirred under argon for 5 days at 65° C. The methanol was evaporated and then water, 1N HCl, and 0.5 mL DBU were added. The mixture was extracted with dichloromethane, the organic layer separated, and the solvent evaporated to yield (R)-2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxy-2-phenylethyl)-1H-benzo[d]imidazol-6-yl)acetic acid.
    • Step 6: (R)-2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-1-phenylethanol
  • A solution of (R)-2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxy-2-phenylethyl)-1H-benzo[d]imidazol-6-yl)acetic acid (155 mg, 0.28 mmol) and DBU (0.5 mL, 3.35 mmol) in toluene (10 mL) was heated at 90° C. overnight under argon. After evaporation of the solvent, the residue was purified by silica gel chromatography with a 0-2% methanol:dichloromethane gradient as eluent to yield 0.07 g of a white solid. The solid was heated in acetonitrile, cooled, and filtered to yield (R)-2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-1-phenylethanol as a white solid. MS: 513.2 (M+H+); 1H NMR (400 MHz, DMSO-de) δ: 7.43-7.34 (m, 5H), 7.34-7.22 (m, 5H), 7.16-7.07 (m, 4H), 7.01 (s, 1H), 6.84 (br d, J=8.3 Hz, 1H), 5.76-5.69 (m, 2H), 4.88-4.81 (m, 1H), 4.34 (br dd, J=7.7, 14.5 Hz, 1H), 4.24 (br dd, J=4.0, 14.5 Hz, 1H), 2.26-2.18 (m, 1H), 1.10-1.03 (m, 1H), 0.99 (q, J=8.2 Hz, 2H), 0.91-0.81 (m, 1H).
    • Example DL-10 (R)-6-(bis(4-chlorophenyl)methyl)-2-ethyl-1-(2-phenylpropyl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00426
  • (R)-6-(bis(4-chlorophenyl)methyl)-2-ethyl-1-(2-phenylpropyl)-1H-benzo[d]imidazole was prepared according to the procedure as described in Example DL-7 above substituting (R)-2-phenyl-1-propylamine for p-trifluoromethylphenethylamine hydrochloride in step 1. MS: 499.0 (M+H+); 1H NMR (400 MHz, DMSO-d6) δ: 7.67 (d, J=8.6 Hz, 1H), 7.45 (br s, 1H), 7.43 (dd, J=1.2, 8.6 Hz, 4H), 7.24-7.14 (m, 4H), 7.14-7.08 (m, 6H), 5.83 (s, 1H), 4.56 (dd, J=6.6, 14.7 Hz, 1H), 4.45 (dd, J=8.6, 14.4 Hz, 1H), 3.25-3.15 (m, 1H), 3.12-3.01 (m, 1H), 2.96-2.85 (m, 1H), 1.35-1.25 (m, 6H).
    • Example DL-11 6-(bis(4-chlorophenyl)methyl)-2-ethyl-1-(1-phenylpropan-2-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00427
  • 6-(Bis(4-chlorophenyl)methyl)-2-ethyl-1-(1-phenylpropan-2-yl)-1H-benzo[d]imidazole was prepared according to the procedure as described in Example DL-9 above substituting 1-phenylpropan-2-amine for (R)-2-amino-1-phenylethanol in step 2 and propionaldehyde for cyclopropanecarboxaldehyde in step 4. MS: 533.1 (M+H+).
    • Example DL-13 (S)-2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-1-phenylethanol
  • Figure US20190031618A1-20190131-C00428
    • Step 1: (S)-methyl 2,2-bis(4-chlorophenyl)-2-(3-((2-hydroxy-2-phenylethyl)amino)-4-nitrophenyl)acetate
  • A solution of methyl 2-(3-chloro-4-nitrophenyl)-2,2-bis(4-chlorophenyl)acetate (200 mg, 0.44 mmol), prepared as described in Example DL-2 above, (S)-2-amino-1-phenylethanol (126 mg, 0.89 mmol), and DIPEA (0.229 mL, 1.33 mmol) in 1,4-dioxane (2 mL) was heated under argon at 95° C. for 4 days. Ethyl acetate was added and the organic mixture was washed with water and brine and then dried over Na2SO4. The solvent was evaporated in vacuo and the yellow oily residue was purified by silica gel chromatography to yield (S)-methyl 2,2-bis(4-chlorophenyl)-2-(3-((2-hydroxy-2-phenylethyl)amino)-4-nitrophenyl)acetateas a yellow oil.
    • Step 2: (S)-methyl 2-(4-amino-3-((2-hydroxy-2-phenylethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate
  • To a solution of (S)-methyl 2,2-bis(4-chlorophenyl)-2-(3-((2-hydroxy-2-phenylethyl)amino)-4-nitrophenyl)acetate (100 mg, 0.18 mmol) in MeOH (200 mL) was added 5% Pd/C sulfide (65 mg) and the mixture was placed under 50 psi hydrogen at room temperature for 4.5 hours. The reaction mixture was filtered through CELITE and the solvent evaporated in vacuo to yield (S)-methyl 2-(4-amino-3-((2-hydroxy-2-phenylethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate as a white oil.
    • Step 3: (S)-methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxy-2-phenylethyl)-1H-benzo[d]imidazol-6-yl)acetate
  • A solution of (S)-methyl 2-(4-amino-3-((2-hydroxy-2-phenylethyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate (100 mg, 0.19 mmol) and cyclopropanecarboxaldehyde (0.029 mL, 0.38 mmol) in DMSO (1 mL) was rapidly stirred at room temperature in the presence of air for 2 days. The reaction mixture was purified by reverse phase HPLC. Fractions containing the desired product were combined and lyophilized to yield (S)-methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxy-2-phenylethyl)-1H-benzo[d]imidazol-6-yl)acetate as a white solid.
    • Step 4: (S)-2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxy-2-phenylethyl)-1H-benzo[d]imidazol-6-yl)acetic acid
  • A solution of (S)-methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxy-2-phenylethyl)-1H-benzo[d]imidazol-6-yl)acetate (75 mg, 0.11 mmol) in 3N NaOH aqueous solution (2 mL, 6 mmol) and methanol (8 mL) was stirred under argon overnight at 40° C. The temperature of the reaction mixture was increased to 50° C. and the reaction was stirred for another day. 1N HCl was added and the methanol was evaporated in vacuo. Water and 0.5 mL DBU were added and the mixture was extracted with dichloromethane. The organic layer was separated and the solvent evaporated to yield (S)-2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxy-2-phenylethyl)-1H-benzo[d]imidazol-6-yl)acetic acid as a clear oil.
    • Step 5: (S)-2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-1-phenylethanol
  • A solution of (S)-2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(2-hydroxy-2-phenylethyl)-1H-benzo[d]imidazol-6-yl)acetic acid (60.77 mg, 0.11 mmol) and DBU (0.08 mL, 0.55 mmol) in toluene (10 mL) was heated at 90° C. overnight under argon. After evaporation of the solvent, the residue was purified by reverse phase HPLC to yield (S)-2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-1-phenylethanol as a white solid. MS: 513.2 (M+H+); 1H NMR (400 MHz, DMSO-d6) δ: 7.63 (d, J=8.6 Hz, 1H), 7.48 (s, 1H), 7.43 (dd, J=6.3, 8.3 Hz, 4H), 7.35 (d, J=4.0 Hz, 4H), 7.32-7.26 (m, 1H), 7.24 (br d, J=8.6 Hz, 1H), 7.14 (dd, J=3.8, 8.3 Hz, 4H), 5.87 (s, 1H), 4.95 (dd, J=3.8, 7.8 Hz, 1H), 4.67-4.51 (m, 2H), 2.64-2.55 (m, 1H), 1.34 (br d, J=6.1 Hz, 3H), 1.25 (br s, 1H).
    • Example DL-14 2-((1-(3-chlorophenethyl)-2-ethyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00429
  • 2-((1-(3-Chlorophenethyl)-2-ethyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole was prepared according to the procedure as described in Example DL-4 above substituting propionaldehyde for cyclopropanecarboxaldehyde in Step 6. MS: 492.0 (M+H+); 1H NMR (400 MHz, DMSO-d6) δ: 7.86 (d, J=3.4 Hz, 1H), 7.81-7.72 (m, 3H), 7.48 (d, J=8.6 Hz, 1H), 7.44 (d, J=8.6 Hz, 2H), 7.36-7.29 (m, 3H), 7.29-7.23 (m, 2H), 7.16-7.09 (m, 1H), 6.19 (s, 1H), 4.70-4.58 (m, 2H), 3.15-3.03 (m, 4H), 1.32 (t, J=7.5 Hz, 3H).
    • Example DL-15 (S)-6-(bis(4-chlorophenyl)methyl)-2-ethyl-1-(2-phenylpropyl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00430
  • (S)-6-(Bis(4-chlorophenyl)methyl)-2-ethyl-1-(2-phenylpropyl)-1H-benzo[d]imidazole was prepared according to the procedure as described in Example DL-7 above substituting (S)-2-phenyl-1-propylamine for p-trifluoromethylphenethylamine hydrochloride in Step 1. MS: 498.9 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 7.80 (d, J=8.6 Hz, 1H), 7.34-7.28 (m, 4H), 7.28-7.21 (m, 4H), 6.96 (d, J=8.1 Hz, 4H), 6.92-6.81 (m, 3H), 5.63 (s, 1H), 4.30 (dd, J=5.6, 14.7 Hz, 1H), 4.15 (dd, J=8.8, 14.4 Hz, 1H), 3.20-3.10 (m, 1H), 2.79 (td, J=7.6, 15.5 Hz, 1H), 2.74-2.63 (m, 1H), 1.42 (d, J=7.1 Hz, 3H), 1.33 (t, J=7.6 Hz, 3H).
    • Example DL-16 2-((1-(4-chlorophenethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00431
    • Step 1: 2-(3-amino-4-nitrophenyl)-2-(4-chlorophenyl)acetonitrile
  • To a stirred solution of 4-chlorophenylacetonitrile (6.46 g, 40.89 mmol) in THF (100 mL) cooled to 0° C. was added t-BuOK (1M in THF, 74.97 mL, 23.17 mmol). After 10 minutes 5-fluoro-2-nitroaniline (3.28 g, 11.59 mmol) was added to the reaction mixture. The reaction mixture was allowed to warm to room temperature and stirred overnight at room temperature. THF (25 mL) was added and saturated NH4Cl was added until the deep purple color disappeared. The mixture was extracted with ethyl ether and the organic layer was washed with brine and dried over MgSO4. The solvent was removed in vacuo to yield 2-(3-amino-4-nitrophenyl)-2-(4-chlorophenyl)acetonitrile as a red oil. The oil was dissolved in 40 mL of 3:2 dichloromethane:heptane and the resulting yellow precipitate was collected by filtration (7.63 g). The filtrate was evaporated and the residue was purified by silica gel chromatography eluting with a 75% dichloromethane:heptane to 100% dichloromethane gradient to yield additional 2-(3-amino-4-nitrophenyl)-2-(4-chlorophenyl)acetonitrile.
    • Step 2: (3-chloro-4-nitrophenyl)(4-chlorophenyl)methanone
  • To a solution of CuCl2 (5.18 g, 38.54 mmol) and t-butylnitrite (6.55 mL, 49.56 mmol) in CH3CN (160 mL) heated to 65° C. was added 2-(3-amino-4-nitrophenyl)-2-(4-chlorophenyl)acetonitrile (7.92 g, 27.53 mmol). The reaction mixture was heated at 65° C. for 2 hours with the argon atmosphere maintained over the reaction by bubbling the gas through a mixture of 3N NaOH/bleach. An additional amount of t-butylnitrite was added (1.45 mL) and the reaction mixture was heated overnight. The reaction was cooled in ice and 300 mL of 2N HCl was added. The mixture was extracted with ethyl ether and the organic layer was washed with water, brine, and then dried over MgSO4. The solvent was evaporated to yield a residue as a yellow solid. The solid was recrystallized with isopropanol to yield (3-chloro-4-nitrophenyl)(4-chlorophenyl)methanone as an orange solid. The filtrate was concentrated and the residue was purified by silica gel chromatography using a 25-50% dichloromethane:heptane gradient as eluent to yield additional (3-chloro-4-nitrophenyl)(4-chlorophenyl)methanone as a white solid.
    • Step 3: (3-chloro-4-nitrophenyl)(4-chlorophenyl)(thiazol-2-yl)methanol
  • A solution of thiazole (2.28 mL, 31.75 mmol) in THF (100 mL) was cooled to −78° C. and treated dropwise with n-BuLi (10M in hexanes, 3.49 mL, 34.92 mmol). After 30 minutes a solution of (3-chloro-4-nitrophenyl)(4-chlorophenyl)methanone (4.7 g, 15.87 mmol) in THF (100 mL) was added dropwise and the reaction mixture was allowed to warm to room temperature and stirred overnight. Water was added and the mixture was extracted with ethyl ether. The organic layer was washed with brine and dried over MgSO4. The solvent was evaporated to yield a dark oil. The oil was purified by silica gel chromatography eluting with a gradient of 1:1 dichloromethane:hexane to dichloromethane to yield (3-chloro-4-nitrophenyl)(4-chlorophenyl)(thiazol-2-yl)methanol as a yellow-orange gum.
    • Step 4: (3-((4-chlorophenethyl)amino)-4-nitrophenyl)(4-chlorophenyl)(thiazol-2-yl)methanol
  • A solution of (3-chloro-4-nitrophenyl)(4-chlorophenyl)(thiazol-2-yl)methanol (250 mg, 0.66 mmol), p-chlorophenethylamine (0.28 mL, 1.97 mmol), and potassium fluoride (190 mg, 3.28 mmol) in DMSO (1 mL) was heated under argon at 100° C. for 72 hours. Water was added and the mixture was extracted with ethyl ether. The organic layer was washed with water (2×) and brine (IX) and then dried over MgSO4. Evaporation of the solvent in vacuo to yield residue, which was purified by silica gel chromatography using a 50% dichloromethane:heptane to 100% dichloromethane gradient to yield (3-((4-chlorophenethyl)amino)-4-nitrophenyl)(4-chlorophenyl)(thiazol-2-yl)methanol as an orange solid.
    • Step 5: Mixture of N1-(4-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine and N-(2-((4-chlorophenethyl)amino)-4-((4-chlorophenyl)(thiazol-2-yl)methyl)phenyl)acetamide
  • To a solution of (3-((4-chlorophenethyl)amino)-4-nitrophenyl)(4-chlorophenyl)(thiazol-2-yl)methanol (130 mg, 0.26 mmol) in acetic acid (3.75 mL) was added tin chloride dihydrate (293 mg, 1.30 mmol) and water (0.25 mL). The reaction mixture was heated at 50° C. and the solvent was evaporated in vacuo. Water and 3N NaOH were added to the residue and the mixture was extracted with dichloromethane (3×). The organic layer was dried over Na2SO4, filtered, and the solvent evaporated in vacuo to yield a mixture of N1-(4-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine and N-(2-((4-chlorophenethyl)amino)-4-((4-chlorophenyl)(thiazol-2-yl)methyl)phenyl)acetamide as a brown oil.
    • Step 6: 2-((1-(4-chlorophenethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • A solution of N1-(4-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine and N-(2-((4-chlorophenethyl)amino)-4-((4-chlorophenyl)(thiazol-2-yl)methyl)phenyl)acetamide (140 mg, 0.31 mmol) and cyclopropanecarboxaldehyde (0.047 mL, 0.62 mmol) in DMSO (1 mL) was rapidly stirred at room temperature in the presence of air. The reaction mixture was purified by reverse phase HPLC. The fractions containing the product were lyophilized to yield 2-((1-(4-chlorophenethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole trifluoroacetate salt. MS: 504.0 (M+H+).
    • Example DL-17 2-((4-chlorophenyl)(1-(3-chlorophenyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00432
  • 2-((4-Chlorophenyl)(1-(3-chlorophenyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole was prepared according to the procedure as described in Example DL-8 above substituting cyclopropanecarboxaldehyde for propionaldehyde in Step 6. MS: 476.0 (M+H+).
    • Example DL-18 2-((4-chlorophenyl)(1-(3-chlorophenyl)-2-propyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00433
  • 2-((4-Chlorophenyl)(1-(3-chlorophenyl)-2-propyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole was prepared according to the procedure as described in Example DL-8 above substituting 1-butyraldehyde for propionaldehyde in Step 6.
  • MS: 478.0 (M+H+).
    • Example DL-19 2-((4-chlorophenyl)(1-(1-(4-chlorophenyl)propan-2-yl)-2-ethyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00434
    • Step 1: (4-chlorophenyl)(3-((1-(4-chlorophenyl)propan-2-yl)amino)-4-nitrophenyl)(thiazol-2-yl)methanol
  • A solution of (3-chloro-4-nitrophenyl)(4-chlorophenyl)(thiazol-2-yl)methanol (500 mg, 1.31 mmol), prepared as described in Example DL-16 above, 2-(4-chlorophenyl)-1-methylethylamine hydrochloride (828 mg, 3.94 mmol), potassium fluoride (381 mg, 6.56 mmol), and K2CO3 (544 mg, 3.94 mmol) in DMSO (2 mL) was heated under argon at 100° C. for 72 hours. Water was added and the mixture was extracted with ethyl ether. The organic layer was washed with water (2×) and brine (1×) and then dried over MgSO4. Evaporation of the solvent in vacuo yielded an orange solid, which was purified by silica gel chromatography using a 50% dichloromethane:heptane to 100% dichloromethane gradient to yield (4-chlorophenyl)(3-((1-(4-chlorophenyl)propan-2-yl)amino)-4-nitrophenyl)(thiazol-2-yl)methanolas an orange solid.
    • Step 2: 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-(4-chlorophenyl)propan-2-yl)benzene-1,2-diamine
  • To a solution of (4-chlorophenyl)(3-((1-(4-chlorophenyl)propan-2-yl)amino)-4-nitrophenyl)(thiazol-2-yl)methanol (420 mg, 0.82 mmol) in acetic acid (15 mL) under an argon atmosphere was added tin chloride dihydrate (921 mg, 4.08 mmol) and conc. HCl (1 mL). The reaction mixture was heated at 50° C. for 5 days and then another 0.95 g of tin chloride dihydrate was added and the reaction mixture stirred at 50° C. for 16 hours. Ice and 3N NaOH (90 mL) were added to the residue and the mixture was extracted with ethyl acetate. The organic layer was washed with water and brine and then dried over Na2SO4. Evaporation of the solvent in vacuo yielded a green oil. The oil was purified by silica gel chromatography using a 0-2% methanol:dichloromethane gradient to yield 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-(4-chlorophenyl)propan-2-yl)benzene-1,2-diamine as a green oil.
    • Step 3: 2-((4-chlorophenyl)(1-(1-(4-chlorophenyl)propan-2-yl)-2-ethyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • A solution of 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-(4-chlorophenyl)propan-2-yl)benzene-1,2-diamine (550 mg, 1.17 mmol) and propionaldehyde (0.175 mL, 2.35 mmol) in DMSO (1 mL) was rapidly stirred at room temperature in the presence of air for 72 hours. The reaction mixture was purified by reverse phase HPLC. The fractions containing the product were lyophilized to yield 2-((4-chlorophenyl)(1-(1-(4-chlorophenyl)propan-2-yl)-2-ethyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole trifluoroacetate salt. MS: 506.2 (M+H4).
    • Example DL-20 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(2,3-dihydro-1H-inden-2-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00435
    • Step 1: methyl 2,2-bis(4-chlorophenyl)-2-(3-((2,3-dihydro-1H-inden-2-yl)amino)-4-nitrophenyl)acetate and N-(5-(bis(4-chlorophenyl)methyl)-2-nitrophenyl)-2,3-dihydro-1H-inden-2-amine
  • A solution of methyl 2-(3-chloro-4-nitrophenyl)-2,2-bis(4-chlorophenyl)acetate (670 mg, 1.49 mmol), prepared as described in Example DL-2 above, (S)-2-indanamine (0.38 mL, 2.97 mmol), and DIPEA (0.538 mL, 3.12 mmol) in 1,4-dioxane (2 mL) was heated under argon at 95° C. for 18 hours. The solvent was evaporated to the point that the mixture became thick, another 0.38 g of 2-indanamine was added, and the reaction was heated at 110° C. for 72 hours. The remaining solvent was evaporated in vacuo and the residue was purified by reverse phase HPLC. The fractions containing the product were lyophilized to yield methyl 2,2-bis(4-chlorophenyl)-2-(3-((2,3-dihydro-1H-inden-2-yl)amino)-4-nitrophenyl)acetate and N-(5-(bis(4-chlorophenyl)methyl)-2-nitrophenyl)-2,3-dihydro-1H-inden-2-amine trifluoroacetate salts as green solids. MS: 489 (M+H+).
    • Step 2: 5-(bis(4-chlorophenyl)methyl)-N1-(2,3-dihydro-1H-inden-2-yl)benzene-1,2-diamine
  • To a solution of N-(5-(bis(4-chlorophenyl)methyl)-2-nitrophenyl)-2,3-dihydro-1H-inden-2-amine (140 mg, 0.29 mmol) in MeOH (100 mL) was added 5% Pd/C sulfide (130 mg) and the mixture was placed under 40 psi hydrogen at room temperature for 5.5 hours. The reaction mixture was filtered through CELITE and the solvent evaporated in vacuo. The residue was purified by silica gel chromatography using a 50% dichloromethane:heptane to 100% dichloromethane gradient to yield 5-(bis(4-chlorophenyl)methyl)-N1-(2,3-dihydro-1H-inden-2-yl)benzene-1,2-diamine as a white solid.
    • Step 3: 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(2,3-dihydro-1H-inden-2-yl)-1H-benzo[d]imidazole
  • A solution of 5-(bis(4-chlorophenyl)methyl)-N1-(2,3-dihydro-1H-inden-2-yl)benzene-1,2-diamine (70 mg, 0.12 mmol) and cyclopropanecarboxaldehyde (0.019 mL, 0.24 mmol) in DMSO (0.7 mL) was rapidly stirred at room temperature in the presence of air for 18 hours. The reaction mixture was purified by reverse phase HPLC. Fractions containing the desired product were combined and lyophilized to yield 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(2,3-dihydro-1H-inden-2-yl)-1H-benzo[d]imidazole as a white solid.
    • Example DL-21 2-((4-chlorophenyl)(2-cyclopropyl-1-(1,2,3,4-tetrahydronaphthalen-2-yl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00436
    • and (4-chlorophenyl)(2-cyclopropyl-1-(1,2,3,4-tetrahydronaphthalen-2-yl)-1H-benzo[d]imidazol-6-yl)(thiazol-2-yl)methanol
  • Figure US20190031618A1-20190131-C00437
    • Step 1: (4-chlorophenyl)(4-nitro-3-((1,2,3,4-tetrahydronaphthalen-2-yl)amino)phenyl)(thiazol-2-yl)methanol
  • A solution of (3-chloro-4-nitrophenyl)(4-chlorophenyl)(thiazol-2-yl)methanol (200 mg, 0.53 mmol), prepared as described in Example DL-16 above, 2-aminotetralin (89.4 mg, 0.58 mmol), potassium fluoride (152 mg, 2.62 mmol), and diisopropylethylamine (0.181 mL, 1.05 mmol) in DMSO (1 mL) was heated under argon at 100° C. for 18 hours. An additional 2 equivalents of diisopropylethylamine were added and the reaction was heated at 100° C. for 3 hours. An additional 90 mg of 2-aminotetralin were added and the reaction heated at 100° C. for 72 hours. Saturated NaHCO3 was added and the reaction mixture was extracted with a mixture of ethyl ether and ethyl acetate. The organic layer was washed with water and brine and then dried over MgSO4. Evaporation of the solvent in vacuo yielded a brown oil, which was purified by silica gel chromatography using a 50% dichloromethane:heptane to 100% dichloromethane gradient to yield (4-chlorophenyl)(4-nitro-3-((1,2,3,4-tetrahydronaphthalen-2-yl)amino)phenyl)(thiazol-2-yl)methanol.
    • Step 2: (4-chlorophenyl)(4-nitro-3-((1,2,3,4-tetrahydronaphthalen-2-yl)amino)phenyl)(thiazol-2-yl)methanol and N-(4-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-((1,2,3,4-tetrahydronaphthalen-2-yl)amino)phenyl)acetamide
  • To a solution of (4-chlorophenyl)(4-nitro-3-((1,2,3,4-tetrahydronaphthalen-2-yl)amino)phenyl)(thiazol-2-yl)methanol (160 mg, 0.33 mmol) in acetic acid (3.75 mL) under an argon atmosphere was added tin chloride dihydrate (367 mg, 1.63 mmol) and conc. HCl (0.25 mL). The reaction mixture was heated at 50° C. for 1.5 hours. Water and 3N NaOH were added and the mixture was extracted with dichloromethane (3×). The organic layer was dried over Na2SO4 and the solvent was evaporated in vacuo to yield 0.15 g of a mixture of (4-chlorophenyl)(4-nitro-3-((1,2,3,4-tetrahydronaphthalen-2-yl)amino)phenyl)(thiazol-2-yl)methanol and N-(4-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-((1,2,3,4-tetrahydronaphthalen-2-yl)amino)phenyl)acetamide as a brown foam.
    • Step 3: 2-((4-chlorophenyl)(2-cyclopropyl-1-(1,2,3,4-tetrahydronaphthalen-2-yl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole and (4-chlorophenyl)(2-cyclopropyl-1-(1,2,3,4-tetrahydronaphthalen-2-yl)-1H-benzo[d]imidazol-6-yl)(thiazol-2-yl)methanol trifluoroacetate salt
  • A solution of (4-chlorophenyl)(4-nitro-3-((1,2,3,4-tetrahydronaphthalen-2-yl)amino)phenyl)(thiazol-2-yl)methanol (75 mg, 0.17 mmol) and cyclopropanecarboxaldehyde (0.026 mL, 0.34 mmol) in DMSO (1 mL) was rapidly stirred at room temperature in the presence of air. The reaction mixture was purified by reverse phase HPLC. The fractions containing the products were lyophilized to yield 2-((4-chlorophenyl)(2-cyclopropyl-1-(1,2,3,4-tetrahydronaphthalen-2-yl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole trifluoroacetate salt [MS: 496.0 (M+H+)] and (4-chlorophenyl)(2-cyclopropyl-1-(1,2,3,4-tetrahydronaphthalen-2-yl)-1H-benzo[d]imidazol-6-yl)(thiazol-2-yl)methanol trifluoroacetate salt [MS: 512.1 (M+H+)].
    • Example DL-22 2-((4-chlorophenyl)(1-(3-chlorophenyl)-2-isopropyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00438
  • 2-((4-Chlorophenyl)(1-(3-chlorophenyl)-2-isopropyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole was prepared according to the procedure as described in Example DL-8 above substituting isobutyraldehyde for propionaldehyde in Step 6.
  • MS: 478.0 (M+H+).
    • Example DL-23 2-((1-(3-chlorophenethyl)-2-methyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00439
    • Step 1: 2-(3-((3-chlorophenethyl)amino)-4-nitrophenyl)-2-(4-chlorophenyl)ethanethioamide
  • To a solution of 2-(3-((3-chlorophenethyl)amino)-4-nitrophenyl)-2-(4-chlorophenyl)acetonitrile (1.04 g, 2.44 mmol), prepared as described in Example 20 DL-4 above, and triethylamine (0.679 mL, 4.88 mmol) in pyridine (12 mL) was bubbled hydrogen sulfide gas (0.831 g, 24.40 mmol) for 2 hours. The reaction mixture was stirred at room temperature overnight. Acetonitrile was added to the reaction mixture and the solvent was evaporated to yield an orange solid which was dissolved in ethyl ether. The organic solution was washed with saturated NaHCO3 and brine, and then dried over K2CO3. The solvent was evaporated in vacuo to yield 2-(3-((3-chlorophenethyl)amino)-4-nitrophenyl)-2-(4-chlorophenyl)ethanethioamide as an orange solid (1.51 g).
    • Steps 2 and 3: N-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitroaniline and N1-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine
  • N-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitroaniline and N1-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine were prepared as described in Example DL-4 above.
    • Step 4: 2-((1-(3-chlorophenethyl)-2-methyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • To a solution of N1-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine (100 mg, 0.22 mmol) in trimethylorthoacetate (3 mL, 23.34 mmol) was added concentrated HCl (0.02 mL) and the solution was heated at reflux temperature for 18 hours. The reaction mixture was purified by reverse phase HPLC and the fractions containing the product were lyophilized to yield 2-((1-(3-chlorophenethyl)-2-methyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole trifluoroacetate salt as a light brown oil. MS: 478.0 (M+H+).
    • Example DL-24 2-((4-chlorophenyl)(1-(2,3-dihydro-1H-inden-2-yl)-2-methyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00440
    • and 2-((4-chlorophenyl)(2-cyclopropyl-1-(2,3-dihydro-1H-inden-2-yl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00441
    • Step 1: (4-chlorophenyl)(3-((2,3-dihydro-1H-inden-2-yl)amino)-4-nitrophenyl)(thiazol-2-yl)methanol
  • A solution of (3-chloro-4-nitrophenyl)(4-chlorophenyl)(thiazol-2-yl)methanol (220 mg, 0.58 mmol), prepared as described in Example DL-16 above and 2-indanamine (0.39 g, 2.89 mmol) in n-butanol (1 mL) was heated in a microwave at 160° C. for 1 hour. Ethyl acetate was added and the resulting mixture was washed with water (4×) and brine (IX). The organic layer was evaporated and the residue purified by silica gel chromatography using a 50% dichloromethane:heptane to 100% dichloromethane gradient to yield (4-chlorophenyl)(3-((2,3-dihydro-1H-inden-2-yl)amino)-4-nitrophenyl)(thiazol-2-yl)methanol as a yellow oil.
    • Step 2: A mixture of 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(2,3-dihydro-1H-inden-2-yl)benzene-1,2-diamine, N-(4-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-((2,3-dihydro-1H-inden-2-yl)amino)phenyl)acetamide and 2-((4-chlorophenyl)(1-(2,3-dihydro-1H-inden-2-yl)-2-methyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • To a solution of (4-chlorophenyl)(3-((2,3-dihydro-1H-inden-2-yl)amino)-4-nitrophenyl)(thiazol-2-yl)methanol (0.08 g, 0.33 mmol) in acetic acid (3 mL) under an argon atmosphere was added tin chloride dihydrate (0.19 g, 0.84 mmol) and conc. HCl (0.2 mL). The reaction mixture was heated at 50° C. for 18 hours. The solvent was evaporated, ethyl ether and dichloromethane were added, and the mixture was washed with 1N NaOH. The organic layer was separated and the solvent was evaporated in vacuo to yield a mixture of 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(2,3-dihydro-1H-inden-2-yl)benzene-1,2-diamine, N-(4-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-((2,3-dihydro-1H-inden-2-yl)amino)phenyl)acetamide and 2-((4-chlorophenyl)(1-(2,3-dihydro-1H-inden-2-yl)-2-methyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole.
    • Step 3: 2-((4-chlorophenyl)(2-cyclopropyl-1-(2,3-dihydro-1H-inden-2-yl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole and 2-((4-chlorophenyl)(1-(2,3-dihydro-1H-inden-2-yl)-2-methyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • A solution of the mixture of 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(2,3-dihydro-1H-inden-2-yl)benzene-1,2-diamine, N-(4-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-((2,3-dihydro-1H-inden-2-yl)amino)phenyl)acetamide and 2-((4-chlorophenyl)(1-(2,3-dihydro-1H-inden-2-yl)-2-methyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole from Step 2 above (70 mg, 0.152 mmol) and cyclopropanecarboxaldehyde (0.025 mL, 0.32 mmol) in DMSO (1 mL) was rapidly stirred at room temperature in the presence of air. The reaction mixture was purified by reverse phase HPLC. The fractions containing the desired products were lyophilized to yield 2-((4-chlorophenyl)(2-cyclopropyl-1-(2,3-dihydro-1H-inden-2-yl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole trifluoroacetate salt [MS: 482.1 (M+H+)] and 2-((4-chlorophenyl)(1-(2,3-dihydro-1H-inden-2-yl)-2-methyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole trifluoroacetate salt [MS: 456 (M+H+)].
    • Example DL-25 2-((4-chlorophenyl)(1-(1-(4-chlorophenyl)propan-2-yl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00442
  • 2-((4-Chlorophenyl)(1-(1-(4-chlorophenyl)propan-2-yl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole was prepared according to the procedure as described in Example DL-19 above substituting cyclopropanecarboxaldehyde for propionaldehyde in Step 3. MS: 518.2 (M+H+).
    • Example DL-26 2-(4-chlorophenyl)1-(2-(4-chlorophenyl)propyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00443
  • 2-((4-Chlorophenyl)(1-(2-(4-chlorophenyl)propyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole was prepared according to the procedure as described in Example DL-25 above substituting 2-methyl-2-(4-chlorophenyl)ethylamine hydrochloride for 1-methyl-2-(4-chlorophenyl)ethylamine hydrochloride in Step 1. MS: 518.0 (M+H+).
    • Example DL-27 2-((1-(3-chlorophenethyl)-2-propyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00444
  • 2-((1-(3-Chlorophenethyl)-2-propyl-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole was prepared according to the procedure as described in Example DL-4 above substituting butyraldehyde for cyclopropanecarboxaldehyde in Step 6. MS: 506.1 (M+H+).
    • Example DL-28 2-((1-(3-chlorophenethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00445
  • 2-((1-(3-Chlorophenethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole was prepared according to the procedure as described in Example DL-23 above substituting trimethylorthoformate for trimethylorthoacetate in Step 4. MS: 464.0 (M+H+).
    • Example DL-29 1-(4-chlorophenyl)-2-(6-((4-chlorophenyl)thiazol-2-yl)methyl)-2-ethyl-1H-benzo[d]imidazol-1-yl)ethanol
  • Figure US20190031618A1-20190131-C00446
  • 1-(4-Chlorophenyl)-2-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-ethyl-1H-benzo[d]imidazol-1-yl)ethanol was prepared according to the procedure as described in Example DL-19 above substituting 2-(4-chlorophenyl)-2-hydroxyethylamine hydrochloride for 2-(4-chlorophenyl)-1-methylethylamine hydrochloride in Step 1. MS: 508.0 (M+H+).
    • Example DL-30 2-(4-chlorophenyl)1-(1-(4-chlorophenyl)propan-2-yl)-2-(difluoromethyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00447
  • A solution of 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-(4-chlorophenyl)propan-2-yl)benzene-1,2-diamine (550 mg, 1.17 mmol), prepared as described in Example DL-19 above, and difluoroacetic acid (1 mL) was heated at 50° C. under an argon atmosphere for 72 hours. The solvent was evaporated in vacuo and the residue was purified by reverse phase HPLC. The fractions containing the product were lyophilized to yield 2-((4-chlorophenyl)(1-(1-(4-chlorophenyl)propan-2-yl)-2-(difluoromethyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole trifluoroacetate salt [MS: 528.1 (M+H+)].
    • Example DL-31 6-((4-chlorophenyl)(phenyl)methyl)-2-cyclopropyl-1-((S)-2-phenylpropyl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00448
    • and (S)-6-benzhydryl-2-cyclopropyl-1-(2-phenylpropyl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00449
    • Step 1: Mixture of (S)-bis(4-chlorophenyl)(4-nitro-3-((2-phenylpropyl)amino)phenyl)methanol. (S)-methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-((2-phenylpropyl)amino)phenyl)acetate and (S)-5-(bis(4-chlorophenyl)methyl)-2-nitro-N-(2-phenylpropyl)aniline
  • A solution of methyl 2-(3-chloro-4-nitrophenyl)-2,2-bis(4-chlorophenyl)acetate (400 mg, 0.89 mmol), prepared as described in Example DL-2 above, (S)-2-phenylpropylamine (180 mg, 1.33 mmol), potassium carbonate (368 mg, 2.66 mmol), and potassium fluoride (258 mg, 4.44 mmol) in DMSO (2 mL) was heated under argon at 100° C. for 18 hours. Ethyl acetate was added and the organic mixture was washed with water and brine and then evaporated in vacuo to yield a yellow semi-solid. The residue was purified by reverse phase HPLC and fractions containing the products were lyophilized to yield (S)-bis(4-chlorophenyl)(4-nitro-3-((2-phenylpropyl)amino)phenyl)methanol as an orange solid as well as a mixture of (S)-methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-((2-phenylpropyl)amino)phenyl)acetate and (S)-5-(bis(4-chlorophenyl)methyl)-2-nitro-N-(2-phenylpropyl)aniline as an orange oil.
    • Step 2: A mixture of (S)-5-(bis(4-chlorophenyl)methyl)-N1-(2-phenylpropyl)benzene-1,2-diamine, 5-((4-chlorophenyl)(phenyl)methyl)-N1-((S)-2-phenylpropyl)benzene-1,2-diamine and (S)-5-benzhydryl-N1-(2-phenylpropyl)benzene-1,2-diamine
  • To a solution of (S)-bis(4-chlorophenyl)(4-nitro-3-((2-phenylpropyl)amino)phenyl)methanol (80 mg, 0.158 mmol) in MeOH (80 mL) and ethyl acetate (80 mL) was added 5% Pd/C sulfide (420 mg) and the mixture was placed under 50 psi hydrogen at room temperature for 2.5 hours. The reaction mixture was filtered through CELITE elite and the solvent evaporated in vacuo to yield a mixture of (S)-5-(bis(4-chlorophenyl)methyl)-N1-(2-phenylpropyl)benzene-1,2-diamine, 5-((4-chlorophenyl)(phenyl)methyl)-N1-((S)-2-phenylpropyl)benzene-1,2-diamine and (S)-5-benzhydryl-N1-(2-phenylpropyl)benzene-1,2-diamine.
    • Step 3: 6-((4-chlorophenyl)(phenyl)methyl)-2-cyclopropyl-1-((S)-2-phenylpropyl)-1H-benzo[d]imidazole and (S)-6-benzhydryl-2-cyclopropyl-1-(2-phenylpropyl)-1H-benzo[d]imidazole
  • A solution of the mixture of (S)-5-(bis(4-chlorophenyl)methyl)-N1-(2-phenylpropyl)benzene-1,2-diamine, 5-((4-chlorophenyl)(phenyl)methyl)-N1-((S)-2-phenylpropyl)benzene-1,2-diamine and (S)-5-benzhydryl-N1-(2-phenylpropyl)benzene-1,2-diamine (120 mg, 0.26 mmol) and cyclopropanecarboxaldehyde (0.040 mL, 0.52 mmol) in DMSO (2 mL) was rapidly stirred at room temperature in the presence of air for 4 days. The reaction mixture was purified by reverse phase HPLC. Fractions containing the desired products were combined and lyophilized to yield 6-((4-chlorophenyl)(phenyl)methyl)-2-cyclopropyl-1-((S)-2-phenylpropyl)-1H-benzo[d]imidazole (12.7 mg) as a white foam and (S)-6-benzhydryl-2-cyclopropyl-1-(2-phenylpropyl)-1H-benzo[d]imidazole as a white foam.
    • Example DL-32 (S)-6-(bis(4-chlorophenyl)methyl)-2-methyl-1-(2-phenylpropyl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00450
    • Step 1: (S)-methyl 2,2-bis(4-chlorophenyl)-2-(2-methyl-1-(2-phenylpropyl)-1H-benzo[d]imidazol-6-yl)acetate
  • To a solution of (S)-methyl 2-(4-amino-3-((2-phenylpropyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate (114 mg, 0.22 mmol), prepared as described in Example DL-15 above, in trimethylorthoacetate (3 mL, 23.34 mmol) is added concentrated HCl (0.02 mL) and the solution is heated at reflux temperature for 18 hours. The reaction mixture is purified by reverse phase HPLC and the fractions containing the product are lyophilized to yield (S)-methyl 2,2-bis(4-chlorophenyl)-2-(2-methyl-1-(2-phenylpropyl)-1H-benzo[d]imidazol-6-yl)acetate trifluoroacetate salt.
    • Step 2: (S)-2,2-bis(4-chlorophenyl)-2-(2-methyl-1-(2-phenylpropyl)-1H-benzo[d]imidazol-6-yl)acetic acid
  • To a solution of (S)-methyl 2,2-bis(4-chlorophenyl)-2-(2-methyl-1-(2-phenylpropyl)-1H-benzo[d]imidazol-6-yl)acetate (117 mg, 0.215 mmol) in MeOH (4 mL) is added 3N NaOH (1 mL, 3 mmol) and the solution is heated at 45° C. overnight. The solvent is removed in vacuo and then water and 3 mL 1N HCl is added. The mixture is extracted with ethyl acetate and the organic layer is dried over MgSO4 and evaporated in vacuo to yield (S)-2,2-bis(4-chlorophenyl)-2-(2-methyl-1-(2-phenylpropyl)-1H-benzo[d]imidazol-6-yl)acetic acid.
    • Step 3: (S)-6-(bis(4-chlorophenyl)methyl)-2-methyl-1-(2-phenylpropyl)-1H-benzo[d]imidazole
  • A solution of (S)-2,2-bis(4-chlorophenyl)-2-(2-methyl-1-(2-phenylpropyl)-1H-benzo[d]imidazol-6-yl)acetic acid (117 mg, 0.221 mmol) and DBU (0.099 mL, 0.66 mmol) in toluene (10 mL) is heated at 90° C. overnight under argon. After evaporation of the solvent, the residue is purified by reverse phase HPLC and the fractions containing the product are lyophilized to yield (S)-6-(bis(4-chlorophenyl)methyl)-2-methyl-1-(2-phenylpropyl)-1H-benzo[d]imidazole trifluoroacetate salt. MS: 485.0 (M+H+).
    • Example DL-33 1-(4-chlorophenyl)-2-(6-((4-chlorophenyl)(thiazol-2-yl)meth yl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethanol
  • Figure US20190031618A1-20190131-C00451
  • 1-(4-Chlorophenyl)-2-(6-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)ethanol was prepared according to the procedure as described in Example DL-29 above substituting cyclopropanecarboxaldehyde for propionaldehyde in the final step. MS: 520.0 (M+H+).
    • Example DL-34 ethyl 1-(3-chlorophenyl)-6-((4-chlorophenyl thiazol-2-yl)methyl)-1H-benzo[d]imidazole-2-carboxylate
  • Figure US20190031618A1-20190131-C00452
  • Ethyl 1-(3-chlorophenyl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazole-2-carboxylate was prepared according to the procedure as described in Example DL-8 above substituting ethyl glyoxalate (50% in toluene) for propionaldehyde in Step 6. MS: 508.0 (M+H+).
    • Example DL-35 2-((4-chlorophenyl)(1-(3-chlorophenyl)-2-(furan-3-yl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00453
  • 2-((4-Chlorophenyl)(1-(3-chlorophenyl)-2-(furan-3-yl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole was prepared according to the procedure as described in Example DL-8 above substituting 3-furancarboxaldehyde for propionaldehyde in Step 6. MS: 502.0 (M+H+).
    • Example DL-36 2-((4-chlorophenyl)(1-(3-chlorophenyl)-2-methyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00454
  • To a solution of N1-(3-chlorophenyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine (200 mg, 0.47 mmol), prepared as described in Example DL-8 above, in trimethylorthoacetate (3 mL, 23.34 mmol) was added concentrated HCl (0.02 mL) and the solution was heated at reflux temperature for 18 hours. The reaction mixture was purified by reverse phase HPLC and the fractions containing the product were lyophilized to yield 2-((4-chlorophenyl)(1-(3-chlorophenyl)-2-methyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole trifluoroacetate salt as a white solid. MS: 450.1 (M+H+).
    • Example DL-37 2-((4-chlorophenyl)(2-cyclopropyl-1-(pyridin-2-ylmethyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00455
    • Step 1: 5-fluoro-2-nitro-N-(pyridin-2-ylmethyl)anline
  • To a solution of 2,4-difluoronitrobenzene (10 mL, 90.29 mmol) and 2-aminomethylpyridine (10.14 mL, 99.32 mmol) in acetonitrile (60 mL) was added triethylamine (15.061 mL, 108.35 mmol). The reaction mixture was stirred at room temperature overnight. Water (50 mL) was added, the mixture stirred for 30 minutes, and the resulting yellow precipitate was filtered off to yield 5-fluoro-2-nitro-N-(pyridin-2-ylmethyl)aniline. Excess water was added to the filtrate to yield additional 5-fluoro-2-nitro-N-(pyridin-2-ylmethyl)aniline as a yellow solid.
    • Step 2: 2-(4-chlorophenyl)-2-(4-nitro-3-((pyridin-2-ylmethyl)amino)phenyl)acetonitrile
  • To a stirred solution of 4-chlorophenylacetonitrile (7.32 mL, 55.1 mmol) in THF (80 mL) and isopropyl alcohol (8 mL) was added t-BuOK (14.73 g, 131 mmol) and the mixture was stirred at room temperature for 5 minutes. The temperature of the reaction was lowered to 0° C. and 5-fluoro-2-nitro-N-(pyridin-2-ylmethyl)aniline (12.98 g, 52.50 mmol) in THF (40 mL) was added and the reaction mixture was stirred overnight at room temperature. Water was added and the mixture was extracted with ethyl acetate. The yellow precipitate that formed was filtered off and discarded. The organic layer was washed with aqueous NaHCO3, dried over Na2SO4, and the solvent was evaporated in vacuo to yield a black oil.
  • The residue was subjected to silica gel chromatography using a methanol/dichloromethane solvent gradient to yield 2-(4-chlorophenyl)-2-(4-nitro-3-((pyridin-2-ylmethyl)amino)phenyl)acetonitrile as a residue. Final purification by silica gel chromatography using dichloromethane as eluent yielded 2-(4-chlorophenyl)-2-(4-nitro-3-((pyridin-2-ylmethyl)amino)phenyl)acetonitrile.
    • Step 3: 2-(4-chlorophenyl)-2-(4-nitro-3-((pyridin-2-ylmethyl)amino)phenyl)ethanethioamide
  • To a solution of 2-(4-chlorophenyl)-2-(4-nitro-3-((pyridin-2-ylmethyl)amino)phenyl)acetonitrile (2.9 g, 4.29 mmol) in EtOH (75 mL) under an argon atmosphere was added phosphorus pentasulfide (3.81 g, 8.57 mmol) and the reaction mixture was heated to reflux temperature for 24 hours. The solvent was evaporated and the residue was subjected to silica gel chromatography reaction mixture was poured into ice water and extracted with ethyl acetate. The organic layer was washed with water, brine, and dried over MgSO4. The solvent was removed in vacuo and the residue was purified by silica gel chromatography using a dichloromethane to 5% methanol:dichloromethane gradient as eluent to yield 2-(4-chlorophenyl)-2-(4-nitro-3-((pyridin-2-ylmethyl)amino)phenyl)ethanethioamide.
    • Step 4: 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitro-N-(pyridin-2-ylmethyl)aniline
  • To a solution of 2-(4-chlorophenyl)-2-(4-nitro-3-((pyridin-2-ylmethyl)amino)phenyl)ethanethioamide (0.94 g, 1.37 mmol) in acetic acid (15 mL) was added water (0.5 mL) and bromoacetaldehyde diethylacetal (0.847 mL, 5.46 mmol). The reaction mixture was heated to 100° C. for 30 minutes and then aqueous NaHCO3. The resulting mixture was extracted with ethyl ether and the organic layer was washed with brine and evaporated in vacuo to yield 0.75 g a dark oil. The residue was purified by silica gel chromatography using a dichloromethane to 4% methanol:dichloromethane gradient to yield 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitro-N-(pyridin-2-ylmethyl)aniline as a yellow oil.
    • Step 5: 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(pyridin-2-ylmethyl)benzene-1,2-diamine
  • A solution of 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-2-nitro-N-(pyridin-2-ylmethyl)aniline (0.63 g, 1.44 mmol) in ethyl alcohol (150 mL) was placed under a hydrogen atmosphere in the presence of 3 mL of Raney nickel (50% slurry in water) overnight. The catalyst was filtered off and the filtrate was evaporated in vacuo to yield 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-NI-(pyridin-2-ylmethyl)benzene-1,2-diamine as a dark gum.
    • Step 6: 2-((4-chlorophenyl)(2-cyclopropyl-1-(pyridin-2-ylmethyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • A rapidly stirred solution of 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(pyridin-2-ylmethyl)benzene-1,2-diamine (140 mg, 0.34 mmol) and cyclopropanecarboxaldehyde (0.053 mL, 0.69 mmol) in DMSO (1.4 mL) was kept at room temperature in the presence of air for 4 days. The reaction mixture was purified by reverse phase HPLC and the fractions containing the product were lyophilized to yield 35.8 mg of 2-((4-chlorophenyl)(2-cyclopropyl-1-(pyridin-2-ylmethyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole bistrifluoroacetate salt as a white solid. MS: 457.0 (M+H+).
    • Example DL-38 (1S,2R)-2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-1-phenyl propan-1-ol
  • Figure US20190031618A1-20190131-C00456
  • (1 S,2R)-2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-1-phenylpropan-1-ol was prepared according to the procedure as described in Example DL-13 above substituting (+)-(1S,2R)-norephedrine for (S)-2-amino-1-phenylethanol in Step 1. MS: 527.2 (M+H+).
    • Example DL-39 6-(bis(4-chlorophenyl)methyl)-1-(2,3-dihydro-1H-inden-2-yl)-2-ethyl-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00457
    • Step 1: methyl 2,2-bis(4-chlorophenyl)-2-(3-((2,3-dihydro-1H-inden-2-yl)amino)-4-nitrophenyl)acetate and N-(5-(bis(4-chlorophenyl)methyl)-2-nitrophenyl)-2,3-dihydro-1H-inden-2-amine
  • A solution of methyl 2-(3-chloro-4-nitrophenyl)-2,2-bis(4-chlorophenyl)acetate (670 mg, 1.49 mmol), prepared as described in Example DL-2 above, 2-indanamine (0.381 mL, 2.97 mmol), and DIPEA (0.538 mL, 3.12 mmol) in 1,4-dioxane (2 mL) was heated under argon at 95° C. overnight. Sufficient 1,4-dioxane was evaporated to produce a thick reaction mixture, another 0.38 g of 2-indanamine was added, and then the reaction mixture was heated at 110° C. for 72 hours. The solvent was evaporated and the residue was purified by reverse phase HPLC. Fractions containing the products of the reaction were combined and lyophilized to yield methyl 2,2-bis(4-chlorophenyl)-2-(3-((2,3-dihydro-1H-inden-2-yl)amino)-4-nitrophenyl)acetate trifluoroacetate salt and N-(5-(bis(4-chlorophenyl)methyl)-2-nitrophenyl)-2,3-dihydro-1H-inden-2-amine trifluoroacetate salt (140 mg) as green solids.
    • Step 2: 5-(bis(4-chlorophenyl)methyl)-N1-(2,3-dihydro-1H-inden-2-yl)benzene-1,2-diamine
  • To a solution of N-(5-(bis(4-chlorophenyl)methyl)-2-nitrophenyl)-2,3-dihydro-1H-inden-2-amine trifluoroacetate salt (60 mg, 0.099 mmol) in MeOH (100 mL) was added 5% Pt/C sulfide (110 mg) and the mixture was placed under 45 psi hydrogen at room temperature for 4 hours. The reaction mixture was filtered through CELITE and the solvent evaporated in vacuo to yield 5-(bis(4-chlorophenyl)methyl)-N1-(2,3-dihydro-1H-inden-2-yl)benzene-1,2-diamine.
    • Step 3: 6-(bis(4-chlorophenyl)methyl)-1-(2,3-dihydro-1H-inden-2-yl)-2-ethyl-1H-benzo[d]imidazole
  • A solution of 5-(bis(4-chlorophenyl)methyl)-N1-(2,3-dihydro-1H-inden-2-yl)benzene-1,2-diamine (56.5 mg, 0.12 mmol) and propionaldehyde (0.018 mL, 0.25 mmol) in DMSO (1 mL) was rapidly stirred at room temperature in the presence of air for 18 hours. The reaction mixture was purified by reverse phase HPLC. Fractions containing the desired product were combined and lyophilized to yield 6-(bis(4-chlorophenyl)methyl)-1-(2,3-dihydro-1H-inden-2-yl)-2-ethyl-1H-benzo[d]imidazole trifluoroacetate salt as a clear oil. MS: 497.2 (M+H+).
    • Example DL-40 6-(bis(4-chlorophenyl)methyl)-1-(2,3-dihydro-1H-inden-2-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00458
  • To a solution of 5-(bis(4-chlorophenyl)methyl)-N1-(2,3-dihydro-1H-inden-2-yl)benzene-1,2-diamine (100 mg, 0.22 mmol), prepared as described in Example DL-39 above, in trimethylorthoacetate (3 mL, 23.34 mmol) is added concentrated HCl (0.02 mL) and the solution is heated at reflux temperature for 18 hours. The reaction mixture is purified by reverse phase HPLC and the fractions containing the product are lyophilized to yield 6-(bis(4-chlorophenyl)methyl)-1-(2,3-dihydro-1H-inden-2-yl)-1H-benzo[d]imidazole trifluoroacetate salt. MS: 469.1 (M+H+).
    • Example DL-41 2-(4-chlorophenyl)(1-(3-chlorophenyl)-2-(thiophen-3-yl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00459
  • 2-((4-Chlorophenyl)(1-(3-chlorophenyl)-2-(thiophen-3-yl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole was prepared according to the procedure as described in Example DL-8 above substituting 3-thiophenecarboxaldehyde for propionaldehyde in Step 6. MS: 518.0 (M+H+).
    • Example DL-42 tert-butyl 3-(1-(3-chlorophenyl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-2-yl)azetidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00460
  • A solution of NI-(3-chlorophenyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine (100 mg, 0.24 mmol), prepared as described in Example DL-8 above, and 1-t-butyloxycarbonylazetidine-3-carboxaldehyde (88.7 mg, 0.47 mmol) in DMSO (1 mL) was rapidly stirred at room temperature in the presence of air for 4 days. The reaction mixture was heated at 50° C. for another 4 days. The reaction mixture was purified by reverse phase HPLC. Fractions containing the desired product were combined and lyophilized to yield tert-butyl 3-(1-(3-chlorophenyl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-2-yl)azetidine-1-carboxylate trifluoroacetate salt (64.4 mg). MS: 591.0 (M+H+).
    • Example DL-43 (R)-2-(6-(bis(4-chlorophenyl)(hydroxy)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-1-phenylethanol
  • Figure US20190031618A1-20190131-C00461
  • (R)-2-(6-(bis(4-chlorophenyl)(hydroxy)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-1-phenylethanol was prepared according to the procedure as described in Example DL-6 above substituting (R)-2-(6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-1-phenylethanol in the reaction. MS: 529.1 (M+H+).
    • Example DL-44 (1-(3-chlorophenyl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-2-yl)methanol
  • Figure US20190031618A1-20190131-C00462
  • (1-(3-Chlorophenyl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-2-yl)methanol was prepared according to the procedure as described in Example DL-8 above substituting glycolaldehyde for propionaldehyde in Step 6. MS: 466.0 (M+H+).
    • Example DL-45 2-(4-chlorophenyl(1-(2-(4-chlorophenyl)propyl)-2-(2,2,2-trifluoroethyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00463
  • 2-((4-Chlorophenyl)(1-(2-(4-chlorophenyl)propyl)-2-(2,2,2-trifluoroethyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole was prepared according to the procedure as described in Example DL-19 above substituting 2-methyl-2-(4-chlorophenyl)ethylamine hydrochloride for 1-methyl-2-(4-chlorophenyl)ethylamine hydrochloride in Step 1 and 3,3,3-trifluoropropionaldehyde for propionaldehyde in Step 3. MS: 560.0 (M+H+).
    • Example DL-46 2-((1-(3-chlorophenethyl)-2-(2,2,2-trifluoroethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00464
    • and (1-(3-chlorophenethyl)-2-(2,2,2-trifluoroethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl(thiazol-2-yl)methanol
  • Figure US20190031618A1-20190131-C00465
  • A rapidly stirred solution of N1-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine (210 mg, 0.46 mmol), prepared as described in Example DL-4 above, and 3,3,3-trifluoropropionaldehyde (103.6 mg, 0.92 mmol) in DMSO (1 mL) was kept at room temperature in the presence of air for 48 hours. The reaction mixture was purified by reverse phase HPLC and the fractions containing the products were lyophilized to yield 2-((1-(3-chlorophenethyl)-2-(2,2,2-trifluoroethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole trifluoroacetate salt [MS: 546.0 (M+H+)] and (1-(3-chlorophenethyl)-2-(2,2,2-trifluoroethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)(thiazol-2-yl)methanol trifluoroacetate salt [MS: 546.0 (M+H+)] as white solids.
    • Example DL-47 tert-butyl 3-(1-(3-chlorophenethyl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-2-yl)azetidine-1-carboxylate
  • Figure US20190031618A1-20190131-C00466
  • tert-Butyl 3-(1-(3-chlorophenethyl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-2-yl)azetidine-1-carboxylate was prepared according to the procedure as described in Example DL-4 above substituting 1-t-butyloxycarbonylazetidine-3-carboxaldehyde for cyclopropanecarboxaldehyde in Step 6. MS: 619.0 (M+H+).
    • Example DL-48 2-((1-(3-chlorophenethyl)-2-(trifluoromethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00467
  • A solution of NI-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine (100 mg, 0.22 mmol), prepared as described in Example DL-4 above, and trifluoroacetic acid (2 mL) was stirred at room temperature under an argon atmosphere for 18 hours. The solvent was evaporated in vacuo and the residue was purified by reverse phase HPLC. The fractions containing the product were lyophilized to yield 2-((1-(3-chlorophenethyl)-2-(trifluoromethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole trifluoroacetate salt. MS: 532.0 (M+H+).
    • Example DL-49 (1-(3-chlorophenethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)(thiazol-2-yl)methanol
  • Figure US20190031618A1-20190131-C00468
    • Step 1: 2-((1-(3-chlorophenethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • A rapidly stirred solution of N1-(3-chlorophenethyl)-5-((4-chlorophenyl)(thiazol-2-yl)methyl)benzene-1,2-diamine (350 mg, 0.77 mmol), prepared as described in Example DL-4 above, and ethyl glyoxalate (0.305 mL, 1.54 mmol) in DMSO (3.5 mL) was kept at room temperature in the presence of air for 7 days. The reaction mixture was purified by reverse phase HPLC and the fractions containing the product were lyophilized to yield 2-((1-(3-chlorophenethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole trifluoroacetate salt.
  • MS: 464 (M+H+).
    • Step 2: (1-(3-chlorophenethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)(thiazol-2-yl)methanol
  • To a solution of 2-((1-(3-chlorophenethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole trifluoroacetate salt (63.5 mg, 0.11 mmol) in DMSO (1.5 mL) was added saturated KOH (20 μL) and the reaction mixture was stirred rapidly at room temperature under a stream of air. t-Butyl alcohol (0.5 mL) and DMSO (5 mL) were added and the solution was stirred for 4 hours. The solution was then heated to 50° C. for 96 hours. The reaction mixture was purified by reverse phase HPLC, and fractions containing the product were lyophilized to yield (1-(3-chlorophenethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)(thiazol-2-yl)methanol as the trifluoroacetate salt. The purified compound was dissolved in dichloromethane and the organic solution was washed with saturated NaHCO3. The organic layer was dried over Na2SO4 and the solvent evaporated in vacuo to yield (1-(3-chlorophenethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)(thiazol-2-yl)methanol. MS: 480 (M+H+).
    • Example DL-50 2-((4-chlorophenyl)(1-(1-(4-chlorophenyl)ethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00469
    • Step 1: 3-fluoro-4-nitrobenzoyl chloride
  • A solution of 3-fluoro-4-nitrobenzoic acid (2 g, 10.80 mmol) in thionyl chloride (10 mL) and DMF (0.05 mL) was heated to reflux temperature for 4 hours and then stirred at room temperature overnight. The thionyl chloride was evaporated in vacuo and heptane was added and evaporated (2×) to yield 3-fluoro-4-nitrobenzoyl chloride as a yellow oil, which was used as such in the next step.
    • Step 2: (4-chlorophenyl)(3-fluoro-4-nitrophenyl)methanone
  • To 3-fluoro-4-nitrobenzoyl chloride (2.2 g, 10.81 mmol) in chloroform (12 mL) under an argon atmosphere was added aluminum chloride (1.67 g, 12.54 mmol) and chlorobenzene (2.20 mL, 21.62 mmol). The reaction mixture was stirred overnight at room temperature and then heated to reflux temperature for 1 hour. The reaction mixture was poured on ice, concentrated HCl (3.2 mL) was added, and the resulting mixture stirred for 1 hour. The mixture was extracted with dichloromethane and the organic layer was washed with brine and dried over Na2SO4. The solvent was evaporated in vacuo to yield a red solid. The residue was subjected to silica gel chromatography using a gradient of 40-75% dichloromethane:heptane as the eluent to yield a clear oil. The oil was slurried in acetonitrile (100 mL) at 40° C. for 30 minutes, the mixture was cooled in ice, and the orange precipitate filtered off. Evaporation of the filtrate yielded (4-chlorophenyl)(3-fluoro-4-nitrophenyl)methanone as an amber oil.
    • Step 3: (4-chlorophenyl)(3-((1-(4-chlorophenyl)ethyl)amino)-4-nitrophenyl)methanone
  • To (4-chlorophenyl)(3-fluoro-4-nitrophenyl)methanone (0.82 g, 2.93 mmol) and p-chloro-a-methylbenzylamine (0.51 g, 2.93 mmol) in acetonitrile (10 mL) was added triethylamine (0.448 mL, 3.23 mmol). The reaction mixture was heated at 50° C. for 16 hours, heated at 80° C. for the next 6 hours, and then heated at 82° C. for 18 hours. The solvent was evaporated to yield 1.37 g of an orange semi-solid. The residue was purified by silica gel chromatography using a 25-75% dichloromethane:heptane gradient as the eluent to yield (4-chlorophenyl)(3-((1-(4-chlorophenyl)ethyl)amino)-4-nitrophenyl)methanone as a yellow solid.
    • Step 4: (4-chlorophenyl)(3-((1-(4-chlorophenyl)ethyl)amino)-4-nitrophenyl)(thiazol-2-yl)methanol
  • A solution of thiazole (0.156 mL, 2.17 mmol) in THF (10 mL) was cooled to −78° C. and treated dropwise with n-BuLi (10M in hexane, 0.221 mL, 2.21 mmol). After 30 minutes a solution of (4-chlorophenyl)(3-((1-(4-chlorophenyl)ethyl)amino)-4-nitrophenyl)methanone (0.45 g, 1.08 mmol) in THF (10 mL) was added dropwise and the reaction mixture was allowed to warm to room temperature and stirred overnight. Water was added and the mixture was extracted with ethyl acetate. The organic layer was washed with brine and dried over Na2SO4. The solvent was evaporated and the residue was purified by silica gel chromatography eluting with dichloromethane to yield (4-chlorophenyl)(3-((1-(4-chlorophenyl)ethyl)amino)-4-nitrophenyl)(thiazol-2-yl)methanol as a yellow oil.
    • Step 5: 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-(4-chlorophenyl)ethyl)benzene-1,2-diamine
  • To a solution of (4-chlorophenyl)(3-((1-(4-chlorophenyl)ethyl)amino)-4-nitrophenyl)(thiazol-2-yl)methanol (0.32 g, 0.64 mmol) in acetic acid (7.5 mL) was added tin chloride dihydrate (721 mg, 3.20 mmol) and concentrated HCl (0.5 mL). The reaction mixture was heated at 50° C. overnight and the solvent was evaporated in vacuo. Ethyl acetate was added to the residue, the organic layer was washed with water and brine and then dried over Na2SO4. Evaporation of the solvent yielded the residue, which was purified by silica gel chromatography using dichloromethane as the eluent to yield 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-(4-chlorophenyl)ethyl)benzene-1,2-diamine as a brown foam.
    • Step 6: 2-((4-chlorophenyl)(1-(1-(4-chlorophenyl)ethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • A solution of 5-((4-chlorophenyl)(thiazol-2-yl)methyl)-N1-(1-(4-chlorophenyl)ethyl)benzene-1,2-diamine (80 mg, 0.31 mmol) and cyclopropanecarboxaldehyde (0.027 mL, 0.35 mmol) in DMSO (1 mL) was rapidly stirred at room temperature in the presence of air. The reaction mixture was purified by reverse phase HPLC. The fractions containing the product were lyophilized to yield 2-((4-chlorophenyl)(1-(1-(4-chlorophenyl)ethyl)-2-cyclopropyl-1H-benzo[d]imidazol-6-yl)methyl)thiazole trifluoroacetate salt as a white solid. MS: 504.0 (M+H+).
    • Example DL-51 2-(2-(azetidin-3-yl)-1-(3-chlorophenethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00470
  • A solution of tert-butyl 3-(1-(3-chlorophenethyl)-6-((4-chlorophenyl)(thiazol-2-yl)methyl)-1H-benzo[d]imidazol-2-yl)azetidine-1-carboxylate (100 mg, 0.16 mmol), prepared as described in Example DL-47 above, in dichloromethane (10 mL) was cooled in ice and trifluoroacetic acid (1 mL) was added. The reaction mixture was stirred overnight at room temperature and then washed with 13.8 mL of 1N NaOH. The organic layer was dried over Na2SO4 and evaporated to yield a white foam. The residue was purified by reverse phase HPLC and the fractions containing the product were lyophilized to yield 2-((2-(azetidin-3-yl)-1-(3-chlorophenethyl)-1H-benzo[d]imidazol-6-yl)(4-chlorophenyl)methyl)thiazole trifluoroacetate salt. MS: 519.0 (M+H+).
    • Example DP-1 1-((trifluoromethyl)sulfonyl)piperidin-4-one
  • Figure US20190031618A1-20190131-C00471
  • 4-Piperidone HCl salt monohydrate (2 g, 12.89 mmol) was placed in a 40 mL vial equipped with a stir bar then dichloromethane (25 mL) was added. 3M NaOH (4.30 mL, 12.89 mmol) was added and the mixture was stirred until the solid dissolved (˜30 min). The organic phase was separated then the aqueous layer was extracted with dichloromethane (3×20 mL). The combined organic extracts were dried over MgSO4 and filtered into a 200 mL round bottom flask equipped with a stir bar. Diisopropylethylamine (3.33 mL, 19.34 mmol) was added then triflic anhydride (1M solution in dichloromethane, 1.289 mL, 12.89 mmol) was placed in a dropping funnel and the solution was added dropwise over 30 min. After completion of addition, the reaction was stirred at room temperature for 2 hours then the solvent was removed under reduced pressure. The residue was purified by chromatography on silica gel eluting with 0-80% ethyl acetate/heptane gradient to yield 1-((trifluoromethyl)sulfonyl)piperidin-4-one.
    • Example DP-2 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-4-methoxy-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00472
    • Step 1: 2-amino-5-bromo-3-nitrophenol
  • 2-Amino-3-nitrophenol (3 g, 19.465 mmol) was placed in a 200 mL round bottom flask equipped with a stir bar then AcOH (45 mL) was added. Bromine (3.111 g, 19.465 mmol) in acetic acid (25 mL) was placed in a dropping funnel and the solution was added dropwise over 1 hour. The mixture was stirred at room temperature for 18 hours then ethanol (100 mL) and ethyl acetate (300 mL) were added. The solution was neutralized with 2 N NaOH to pH 5 then the organic phase was separated, washed with brine (100 mL), and dried over Na2SO4 and filtered. The solvent was removed under reduced pressure yielding 2-amino-5-bromo-3-nitrophenol as a red solid, which was used in the next step without further purification.
    • Step 2: 4-bromo-2-methoxy-6-nitroaniline
  • 2-Amino-5-bromo-3-nitrophenol (0.74 g, 3.176 mmol) was placed in a 20 mL vial equipped with a stir bar then K2CO3 (570.6 mg, 4.128 mmol) and DMF (10 mL) were added. CH31 (0.217 mL, 3.493 mmol) was added dropwise then the reaction was stirred at room temperature for 3 hours. The reaction was poured into H2O (50 mL) and the precipitate was isolated by filtration. The solid was washed with H2O (3×30 mL) then dissolved in ethyl acetate (100 mL). The solution was dried over MgSO4 and filtered. The solvent was removed under reduced pressure to yield 4-bromo-2-methoxy-6-nitroaniline, which was in the next step without further purification.
    • Step 3: N-(4-bromo-2-methoxy-6-nitrophenyl)cyclopropanecarboxamide
  • 4-Bromo-2-methoxy-6-nitroaniline (743.1 mg, 3.008 mmol) was placed in a 100 mL round bottom flask equipped with a stir bar then the vial was evacuated and filled with argon. Dry tetrahydrofuran (30 mL) was added via syringe then the solution was cooled to 0° C. Sodium hydride (360.9 mg, 9.024 mmol, 60% dispersion in mineral oil) was added as a solid and the reaction turned blood-red immediately. The mixture was stirred at 0° C. for 5 minutes then cyclopropanecarbonyl chloride (0.303 mL, 3.309 mmol) was added. The reaction was stirred at 0° C. for 1.5 hours then additional cyclopropanecarbonyl chloride (0.15 mL) was added. The reaction was warmed to room temperature and stirred for 1 hour then additional sodium hydride (100 mg) was added. The reaction was stirred at room temperature for 18 hours. An additional amount of cyclopropanecarbonyl chloride (0.15 mL) was added and the reaction was stirred for 3 days.
  • The reaction mixture was diluted with H2O (20 mL) and stirred at room temperature for 1 hour. The reaction was warmed to 60° C. and stirred for 2 hours. 3M NaOH (2 mL) was added and the reaction mixture was stirred at 60° C. for 6 hours. The reaction was cooled to room temperature then diluted with ethyl acetate (50 mL) and the organic phase was separated. The aqueous phase was extracted with ethyl acetate (3×30 mL) then the organic extracts were combined, washed with brine (30 mL), dried over MgSO4 and filtered. The solvent was removed under reduced pressure. The residue was purified by chromatography on silica gel eluting with 0-60% ethyl acetate/heptane gradient to yield N-(4-bromo-2-methoxy-6-nitrophenyl)cyclopropanecarboxamide.
    • Step 4: N-(2-amino-4-bromo-6-methoxyphenyl)cyclopropanecarboxamide
  • N-(4-bromo-2-methoxy-6-nitrophenyl)cyclopropanecarboxamide (851.3 mg, 2.701 mmol) was placed in a 40 mL vial equipped with a stir bar then iron powder (754.3 mg, 13.507 mmol) and ammonium chloride (1.445 g, 27.015 mmol) were added. Anhydrous ethanol (25 mL) and water (10 mL) were added and the reaction was stirred at 50° C. for 2 hours. The reaction mixture was cooled to room temperature, diluted with ethyl acetate (10 mL), then filtered through a CELITE cartridge. The filter cake was washed with ethyl acetate (3×20 mL) and water (2×10 mL) then the organic layer was separated and washed with brine (20 mL). The combined aqueous extracts were extracted with ethyl acetate (2×20 mL). The organic extracts were combined, dried over Na2SO4, and filtered. The solvent was removed under reduced pressure to yield N-(2-amino-4-bromo-6-methoxyphenyl)cyclopropanecarboxamide, which was used in the next step without further purification.
    • Step 5: N-(4-bromo-2-methoxy-6-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)cyclopropanecarboxamide
  • N-(2-amino-4-bromo-6-methoxyphenyl)cyclopropanecarboxamide (785.8 mg, 2.756 mmol) and 1-((trifluoromethyl)sulfonyl)piperidin-4-one (637.1 mg, 2.756 mmol) were placed in an 8 mL vial equipped with a stir bar then dichloroethane (50 mL) and acetic acid (0.316 mL, 5.512 mmol) were added. The mixture was stirred at room temperature for 30 minutes then sodium triacetoxyborohydride (564 mg, 2.756 mmol) was added as a solid. The reaction mixture was stirred at room temperature for 4 hours then additional sodium triacetoxyborohydride (564 mg, 2.756 mmol) was added. The reaction mixture was stirred at room temperature for 4 hours then additional sodium triacetoxyborohydride (564 mg, 2.756 mmol) was added. The reaction was stirred at room temperature for 18 h then additional sodium triacetoxyborohydride (1564 mg, 2.756 mmol) was added. The reaction was stirred at room temperature for 3 days then additional 1-((trifluoromethyl)sulfonyl)piperidin-4-one (637.1 mg, 2.756 mmol) was added and stirred for 18 hours. The reaction mixture was diluted with water (20 mL) and stirred for 30 minutes then the mixture was poured into saturated sodium bicarbonate solution (20 mL) and extracted with dichloromethane (3×20 mL). The organic extracts were combined, dried over Na2SO4, and filtered. The solvent was removed under reduced pressure. The residue was purified by chromatography on silica gel eluting with a 0-100% ethyl acetate/heptane gradient to yield a mixture of N-(4-bromo-2-methoxy-6-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)cyclopropanecarboxamide and the corresponding compound in which the trifluorosulfonylpiperidin-4-yl moiety is replaced with an ethyl group (882.5 mg).
    • Step 6: 6-bromo-2-cyclopropyl-4-methoxy-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • The mixture of compounds prepared in (882.5 mg, 1.764 mmol) was placed in a 40 mL vial equipped with a stir bar then glacial acetic acid (10 mL) was added. The reaction was stirred at 80° C. for 3 days then cooled to room temperature, poured into water (100 mL) and extracted with ethyl acetate (3×30 mL). The organic extracts were combined, washed with 3 M NaOH (30 mL), dried over MgSO4, and filtered. The solvent was removed under reduced pressure. The residue was purified by chromatography on silica gel eluting with a 0-100% ethyl acetate/heptane gradient to yield 6-bromo-2-cyclopropyl-4-methoxy-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole and the corresponding compound in which the trifluorosulfonylpiperidin-4-yl moiety is replaced with an ethyl group.
    • Step 7: bis(4-chlorophenyl)(2-cyclopropyl-4-methoxy-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • 6-Bromo-2-cyclopropyl-4-methoxy-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (496 mg, 1.028 mmol) and 4,4′-dichlorobenzophenone (284.1 mg, 1.131 mmol) were placed in a 40 mL vial equipped with a stir bar then the vial was evacuated and filled with argon. Dry tetrahydrofuran (4.66 mL) was added then the solution was cooled to −78° C. t-BuLi (1.209 mL, 2.057 mmol, 1.7 M in pentane) was added dropwise and the reaction mixture was stirred at −78° C. for 2 hours then the dry ice bath was allowed to reach room temperature overnight (18 hours). The reaction mixture was quenched with saturated ammonium chloride solution (20 mL) and extracted with ethyl acetate (3×15 mL). The combined organic extracts were dried over MgSO4, filtered, and the solvent removed under reduced pressure. The resulting reaction mixture was purified by chromatography on silica gel eluting with a 0-80% ethyl acetate/heptane gradient yield bis(4-chlorophenyl)(2-cyclopropyl-4-methoxy-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol, which was isolated as a 1:1 mixture with 2-cyclopropyl-4-methoxy-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (515.5 mg).
    • Step 8: 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-4-methoxy-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • Bis(4-chlorophenyl)(2-cyclopropyl-4-methoxy-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol (515.5 mg, 0.788 mmol, used as a 1:1 mixture as described above) was placed in a 40 mL vial equipped with a stir bar then dry dichloromethane (10 mL) and triethylsilane (0.629 mL, 3.938 mmol) were added. Trifluoroacetic acid (0.303 mL, 3.938 mmol) was added and the reaction was stirred at room temperature for 18 hours then the reaction mixture was washed with saturated sodium bicarbonate solution (50 mL), dried over MgSO4, and filtered. The solvent was removed under reduced pressure. The resulting residue was purified by preparative thin layer chromatography on 4×2000 micron silica gel plates developed with 15% acetonitrile containing 0.1% trifluoroacetic acid/dichloromethane yield 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-4-methoxy-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole.
  • MS: 638.0 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 7.27 (d, J=8.1 Hz, 4H), 7.04 (d, J=8.6 Hz, 4H), 6.66 (s, 1H), 6.38 (s, 1H), 5.58 (s, 1H), 4.61 (tt, J=12.4, 4.0 Hz, 1H), 4.16 (d, J=13.6 Hz, 2H), 3.85 (s, 3H), 3.23 (t, J=12.9 Hz, 2H), 2.43 (qd, J=12.6, 4.0 Hz, 2H), 2.00 (d, J=10.6 Hz, 2H), 1.86-1.95 (m, 1H), 1.21-1.28 (m, 2H), 1.03-1.10 (m, 2H).
    • Example DP-3 bis(4-chlorophenyl)(2-(oxetan-3-yl)-1-(1-(trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • Figure US20190031618A1-20190131-C00473
    • Step 1: N-(4-bromo-2-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)oxetane-3-carboxamide
  • Oxetane-3-carboxylic acid (52.5 mg, 0.514 mmol) was placed in an 8 mL vial equipped with a stir bar then dry dichloromethane (5 mL) was added followed by diisopropylethylamine (0.114 mL, 0.637 mmol). 5-Bromo-N1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)benzene-1,2-diamine (197 mg, 0.49 mmol, prepared as described in Example YM-26) was added followed by HATU (242.09 mg, 0.637 mmol). The reaction mixture was stirred at room temperature for 18 hours. The reaction mixture was diluted with water (30 mL) then extracted with dichloromethane (3×10 mL). The organic extracts were combined, dried over Na2SO4, and filtered. The solvent was removed under reduced pressure to yield N-(4-bromo-2-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)oxetane-3-carboxamide, which was used in the next step without further purification.
    • Step 2: 6-bromo-2-(oxetan-3-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole
  • N-(4-bromo-2-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)oxetane-3-carboxamide (81.6 mg, 0.168 mmol) was placed in an 8 mL vial equipped with a stir bar then acetic acid (1 mL) was added. The mixture was stirred at 80° C. for 36 hours then cooled to room temperature. The reaction mixture was diluted with water (6 mL) then poured into saturated sodium bicarbonate solution (30 mL) and extracted with dichloromethane (3×20 mL). The organic extracts were combined, washed with brine (20 mL), dried over Na2SO4, and filtered. The solvent was removed under reduced pressure. The resulting residue was purified by preparative TLC using 2×2000 micron silica gel plates developed with 30% ethyl acetate/dichloromethane to yield 6-bromo-2-(oxetan-3-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole.
    • Step 3: bis(4-chlorophenyl)(2-(oxetan-3-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • 6-Bromo-2-(oxetan-3-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (56.1 mg, 0.12 mmol) and 4,4′-dichlorobenzophenone (33.09 mg, 0.132 mmol) were placed in a 8 mL vial equipped with a stir bar then the vial was evacuated and filled with argon. Dry tetrahydrofuran (1 mL) was added and the solution was cooled to −78° C. t-BuLi (176.17 μL, 0.299 mmol, 1.7M in pentane) was added dropwise then the reaction was stirred at −78° C. for 30 minutes. The reaction mixture was quenched with saturated ammonium chloride solution at −78° C. then warmed to room temperature, poured into saturated ammonium chloride solution (20 mL), and extracted with ethyl acetate (3×15 mL). The combined organic extracts were dried over Na2SO4, filtered, and the solvent removed under reduced pressure. The resulting residue was purified by preparative TLC on a 2000 micron silica gel plate developed with 30% ethyl acetate/dichloromethane. The isolated product was further purified by preparative reverse-phase HPLC yielding bis(4-chlorophenyl)(2-(oxetan-3-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol as its TFA salt containing 1 eq of TFA as determined by NMR.
  • MS: 617.8 (M+H+); 1H NMR (400 MHz, CDCl3+CD3OD) δ: 7.67 (d, J=8.6 Hz, 1H), 7.65 (s, 1H), 7.29 (d, J=9.1 Hz, 4H), 7.22 (d, J=8.6 Hz, 4H), 7.15 (d, J=8.6 Hz, 1H), 5.12 (d, J=8.1 Hz, 4H), 4.74 (quin, J=7.7 Hz, 1H), 4.25 (tt, J=12.2, 4.0 Hz, 1H), 4.12-4.18 (m, 2H), 3.27 (t, J=12.9 Hz, 2H), 2.43 (qd, J=12.7, 4.3 Hz, 2H), 1.97 (d, J=10.6 Hz, 2H).
    • Example DP-4 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00474
    • Step 1: methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-(((tetrahydro-2H-pyran-4-yl)methyl)amino)phenyl)acetate
  • Methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (1.033 g, 2.379 mmol, prepared as described in Example DL-1), 4-aminomethyltetrahydropyran (301.4 mg, 2.617 mmol), and potassium carbonate (493.1 mg, 3.568 mmol) were placed in a 20 mL vial equipped with a stir bar then dry DMSO (10 mL) was added. The mixture was stirred at 80° C. for 18 hours then the reaction was cooled to room temperature and poured into water (30 mL) and saturated ammonium chloride solution (30 mL). The solid was isolated by filtration and washed with water (2×10 mL). The precipitate was dissolved in ethyl acetate (50 mL), dried over MgSO4, and filtered. The solvent was removed under reduced pressure to yield methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-(((tetrahydro-2H-pyran-4-yl)methyl)amino)phenyl)acetate, which was used in the next step without further purification.
    • Step 2: methyl 2-(4-amino-3-(((tetrahydro-2H-pyran-4-yl)methyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate
  • Methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-(((tetrahydro-2H-pyran-4-yl)methyl)amino)phenyl)acetate (529 mg, 0.999 mmol) was placed in a 40 mL vial equipped with a stir bar then iron powder (279 mg, 4.996 mmol) and ammonium chloride (534 mg, 9.992 mmol) were added. Anhydrous ethanol (16 mL) and water (4 mL) were added then the reaction was stirred at 80° C. for 4 hours. The reaction was cooled to room temperature and diluted with dichloromethane (20 mL) then the suspension was filtered through CELITE. The filter was washed with dichloromethane (3×10 mL) then the solvent was removed under reduced pressure. The residue was dissolved in dichloromethane (30 mL), dried over MgSO4, and filtered. The solvent was removed under reduced pressure to yield methyl 2-(4-amino-3-(((tetrahydro-2H-pyran-4-yl)methyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate, which was used directly in the next step without further purification.
    • Step 3: methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate
  • Methyl 2-(4-amino-3-(((tetrahydro-2H-pyran-4-yl)methyl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate (498.9 mg, 0.999 mmol) was placed in a 20 mL vial equipped with a stir bar then DMSO (1.91 mL) was added.
  • Cyclopropanecarboxaldehyde (149.3 μL, 1.998 mmol) was added via syringe then the reaction was stirred at room temperature for 5 days. The reaction was diluted with water (10 mL) then the mixture was extracted with ethyl acetate (3×15 mL). The organic extracts were combined, washed with brine (20 mL), dried over MgSO4, and filtered. The solvent was removed under reduced pressure. The residue was purified by chromatography on silica gel eluting with a 0-60% ethyl acetate/heptane gradient to yield methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate.
    • Step 4: 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid
  • Methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate (399.4 mg, 0.727 mmol) was placed in a 20 mL vial equipped with a stir bar then MeOH (4 mL), 1,4-dioxane (4 mL), and 3 M NaOH (2.737 mL, 8.21 mmol) were added. The reaction mixture was stirred at 60° C. for 18 hours then the solvent was removed under reduced pressure. The residue was treated with dichloromethane (30 mL) and 10% citric acid (30 mL) then the organic layer was separated. The aqueous phase was extracted with dichloromethane (2×30 mL) then the organic extracts were combined, dried over Na2SO4, and filtered. The solvent was removed under reduced pressure to yield 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid, which was used in the next step without further purification.
    • Step 5: 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-benzo[d]imidazole
  • 2,2-Bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid (371.1 mg, 0.693 mmol) was placed in a 40 mL vial equipped with a stir bar then dry toluene (20 mL) was added. DBU (10.354 μL, 0.0693 mmol) was added via micro-syringe and the solution was heated to 90° C. and stirred for 2 hours. The reaction was cooled to room temperature then the solvent was removed under reduced pressure. The resulting residue was purified by chromatography on silica gel eluting with a 0-80% ethyl acetate/heptane gradient to yield 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-benzo[d]imidazole.
  • MS: 491.2 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 7.56 (d, J=8.1 Hz, 1H), 7.25 (d, J=8.1 Hz, 4H), 7.03 (d, J=8.6 Hz, 4H), 6.92 (dd, J=8.1, 1.5 Hz, 1H), 6.89 (s, 1H), 5.62 (s, 1H), 4.01 (d, J=7.6 Hz, 2H), 3.95 (dd, J=11.4, 3.3 Hz, 2H), 3.23-3.36 (m, 2H), 1.98-2.11 (m, 1H), 1.89-1.98 (m, 1H), 1.45-1.54 (m, 2H), 1.33-1.45 (m, 2H), 1.23-1.28 (m, 2H), 1.07-1.14 (m, 2H).
    • Example DP-5 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-4-ol
  • Figure US20190031618A1-20190131-C00475
    • Step 1: 4-bromo-2-nitro-6-((2-(trimethylsilyl)ethoxy)methoxy)aniline
  • 2-Amino-5-bromo-3-nitrophenol (1 g, 4.291 mmol, prepared as described in Example DP-2 above) was placed in a 20 mL vial equipped with a stir bar then potassium carbonate (771 mg, 5.579 mmol) and DMF (16 mL) were added. SEM chloride (0.835 mL, 4.721 mmol) was added dropwise then the reaction was stirred at room temperature for 24 hours. The reaction mixture was quenched with water (50 mL) and extracted with ethyl acetate (3×50 mL). The organic extracts were combined, washed with brine (30 mL), dried over Na2SO4, and filtered. The solvent was removed under reduced pressure. The residue was purified by chromatography on silica gel eluting with a 0-100% ethyl acetate/heptane gradient to yield 4-bromo-2-nitro-6-((2-(trimethylsilyl)ethoxy)methoxy)aniline.
    • Step 2: 5-bromo-3-((2-(trimethylsilyl)ethoxy)methoxy)benzene-1,2-diamine
  • 4-Bromo-2-nitro-6-((2-(trimethylsilyl)ethoxy)methoxy)aniline (363 mg, 1 mmol) was placed in a 20 mL vial equipped with a stir bar then iron powder (279 mg, 5 mmol) and ammonium chloride (534 mg, 10 mmol) were added. Anhydrous ethanol (9 mL) and water (3 mL) were added then the reaction was stirred at 80° C. for 1 hour. The reaction was cooled to room temperature and diluted with dichloromethane (10 mL) then the suspension was filtered through a CELITE cartridge. The filter cake was washed with dichloromethane (3×10 mL) and water (2×10 mL) then the organic layer was separated and washed with brine (20 mL). The combined aqueous extracts were extracted with dichloromethane (2×20 mL). The organic extracts were combined, dried over Na2SO4, and filtered. The solvent was removed under reduced pressure to yield 5-bromo-3-((2-(trimethylsilyl)ethoxy)methoxy)benzene-1,2-diamine, which was used in the next step without further purification.
    • Step 3: 5-bromo-N1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-3-((2-(trimethylsilyl)ethoxy)methoxy)benzene-1,2-diamine
  • 5-Bromo-3-((2-(trimethylsilyl)ethoxy)methoxy)benzene-1,2-diamine (332.5 mg, 0.998 mmol) and 1-((trifluoromethyl)sulfonyl)piperidin-4-one (231 mg, 0.998 mmol) were placed in a 20 mL vial equipped with a stir bar then dichloroethane (5 mL) and acetic acid (114 μL, 1.995 mmol) were added. The mixture was stirred at room temperature for 30 minutes then sodium triacetoxyborohydride (634 mg, 2.993 mmol) was added as a solid. The reaction was stirred at room temperature for 36 hours. The reaction was diluted with water (3 mL) and stirred for 30 minutes then the mixture was poured into saturated sodium bicarbonate solution (20 mL) and extracted with dichloromethane (3×20 mL). The organic extracts were combined, dried over Na2SO4, and filtered. The solvent was removed under reduced pressure. The residue was purified by chromatography on silica gel eluting with a 0-100% ethyl acetate/heptane gradient to yield 5-bromo-N1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-3-((2-(trimethylsilyl)ethoxy)methoxy)benzene-1,2-diamine, in a mixture with other aromatic amine impurities.
    • Step 4: 6-bromo-2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-4-((2-(trimethylsilyl)ethoxy)methoxy)-1H-benzo[d]imidazole
  • 5-Bromo-N1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-3-((2-(trimethylsilyl)ethoxy)methoxy)benzene-1,2-diamine (372 mg, 0.677 mmol, used as the mixture described above) was placed in a 20 mL vial equipped with a stir bar then DMSO (1.295 mL) was added. Cyclopropanecarboxaldehyde (101.25 μL, 1.355 mmol) was added via syringe then the reaction mixture was stirred at room temperature for 3 days. The reaction mixture was diluted with ethyl acetate (10 mL) then poured into a mixture of water (40 mL) and saturated sodium chloride solution (20 mL). The organic phase was separated then the aqueous layer was extracted with ethyl acetate (3×30 mL). The combined organic extracts were washed with brine (30 mL) then dried over MgSO4 and filtered. The solvent was removed under reduced pressure. The resulting residue was purified by chromatography on silica gel eluting with a 0-80% ethyl acetate/heptane gradient. The isolated product was further purified by chromatography on silica gel eluting with a 40% ethyl acetate/heptane isocratic to yield 6-bromo-2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-4-((2-(trimethylsilyl)ethoxy)methoxy)-1H-benzo[d]imidazole.
    • Step 5: bis(4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-4-((2-(trimethylsilyl)ethoxy)methoxy)-1H-benzo[d]imidazol-6-yl)methanol
  • 6-Bromo-2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-4-((2-(trimethylsilyl)ethoxy)methoxy)-1H-benzo[d]imidazole (112.8 mg, 0.188 mmol) and 4,4′-dichlorobenzophenone (52 mg, 0.207 mmol) were placed in an 8 mL vial equipped with a stir bar then the vial was evacuated and filled with argon. Dry tetrahydrofuran (0.854 mL) was added then the solution was cooled to −78° C. t-BuLi (221.7 μL, 0.377 mmol, 1.7 M in pentane) was added dropwise and the reaction was stirred at −78° C. for 2 hour then the dry ice bath was allowed to reach room temperature overnight (18 hours). The reaction mixture was quenched with water (0.6 mL) then the mixture was poured into saturated ammonium chloride solution (20 mL) and extracted with ethyl acetate (3×15 mL). The combined organic extracts were dried over Na2SO4, filtered, and the solvent removed under reduced pressure. The resulting reaction mixture was purified by chromatography on silica gel eluting with a 0-80% ethyl acetate/heptane gradient to yield bis(4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-4-((2-(trimethylsilyl)ethoxy)methoxy)-1H-benzo[d]imidazol-6-yl)methanol.
    • Step 6: 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-4-ol
  • Bis(4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-4-((2-(trimethylsilyl)ethoxy)methoxy)-1H-benzo[d] imidazol-6-yl)methanol (112.8 mg, 0.188 mmol) was placed in an 8 mL vial equipped with a stir bar then dry dichloromethane (1 mL) was added. Trifluoroacetic acid (0.2 mL) was added then the reaction mixture was stirred at room temperature for 1 hour. The solvent was removed under reduced pressure then the residue was dissolved in dichloromethane (1 mL) and triethylsilane (36.3 μL, 0.227 mmol) was added. TFA (17.4 μL, 0.227 mmol) was added then the reaction was stirred at room temperature for 24 hours. The reaction mixture was diluted with dichloromethane (20 mL) and washed with saturated sodium bicarbonate solution (20 mL) then the organic layer was separated. The aqueous phase was extracted with dichloromethane (3×10 mL) then the organic extracts were combined, dried over MgSO4, and filtered. The solvent was removed under reduced pressure and the resulting residue was purified by chromatography on silica gel eluting with a 0-100% ethyl acetate/heptane gradient to yield 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-4-ol.
  • MS: 491.2 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 8.71 (br. s., 1H), 7.25 (d, J=8.1 Hz, 4H), 7.04 (d, J=8.6 Hz, 4H), 6.65 (s, 1H), 6.48 (s, 1H), 5.54 (s, 1H), 4.61 (tt, J=12.4, 4.0 Hz, 1H), 4.14-4.24 (m, 2H), 3.23 (t, J=12.6 Hz, 2H), 2.47 (qd, J=12.6, 4.0 Hz, 2H), 2.00 (d, J=11.1 Hz, 2H), 1.85-1.94 (m, 1H), 1.00-1.14 (m, 4H).
    • Example DP-6 4-((4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)hydroxy)methyl)benzoic acid
  • Figure US20190031618A1-20190131-C00476
    • and 4-((4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methyl)benzoic acid
  • Figure US20190031618A1-20190131-C00477
    • Step 1: (4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol and (4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanone
  • 6-Bromo-2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazole (209.3 mg, 0.463 mmol, prepared as described in Example YM-26) was placed in an 8 mL vial equipped with a stir bar then the vial was evacuated and filled with argon. Dry tetrahydrofuran (1 mL) was added then the solution was cooled to −78° C. n-BuLi (318.1 μL, 0.509 mmol, 1.6 M in hexane) was added dropwise then the reaction was stirred at −78° C. for 5 minutes.
  • 4-Chlorobenzaldehyde (130 mg, 0.926 mmol) was placed in an 8 mL vial equipped with a stir bar then the vial was evacuated and filled with argon. Dry tetrahydrofuran (1 mL) was added then the solution was added dropwise to the stirred aryllithium solution at −78° C. The reaction mixture was allowed to warm to room temperature, stirred for 18 hours, then poured into saturated ammonium chloride solution (20 mL) and extracted with ethyl acetate (3×5 mL). The combined organic extracts were dried over Na2SO4, filtered, and the solvent was removed under reduced pressure. The resulting reaction mixture was purified by chromatography on silica gel eluting with a 0-100% ethyl acetate/heptane gradient to yield (4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol and a smaller amount (4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanone.
    • Step 2: (4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanone
  • (4-Chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol (141.7 mg, 0.276 mmol) was placed in an 8 mL vial equipped with a stir bar then dichloromethane (2 mL) was added. Dess-Martin periodinane (128.6 mg, 0.303 mmol) was added as a solid then the reaction mixture was stirred at room temperature for 18 hours. The reaction mixture was diluted with dichloromethane (100 mL) and washed with 10% Na2S2O3 (50 mL) and 2 M Na2CO3 solution (50 mL), then dried over MgSO4 and filtered. The solvent was removed under reduced pressure. The residue was combined with the small amount of product prepared in the previous step and purified by chromatography on silica gel eluting with a 0-100% ethyl acetate/heptane gradient to yield (4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanone.
    • Step 3: (4-(1,3-dioxolan-2-yl)phenyl)(4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol
  • (4-Chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanone (50 mg, 0.098 mmol) was placed in an 8 mL vial equipped with a stir bar then the vial was evacuated and filled with argon. Dry tetrahydrofuran (1 mL) was added then (4-(1,3-dioxolan-2-yl)phenyl)magnesium bromide (0.391 mL, 0.195 mmol, 0.5 M in tetrahydrofuran) was added at room temperature. The mixture was stirred at room temperature for 18 hours then quenched with saturated ammonium chloride solution (2 mL). The mixture was extracted with ethyl acetate (3×5 mL) then the organic extracts were combined, dried over MgSO4, and filtered. The solvent was removed under reduced pressure. The resulting residue was purified by preparative TLC on a 2000 micron silica gel plate developed with 30% ethyl acetate/dichloromethane. The isolated product fraction was further purified by preparative TLC on a 2000 micron silica gel plate developed with 30% ethyl acetate/dichloromethane to yield (4-(1,3-dioxolan-2-yl)phenyl)(4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol.
    • Step 4: 4-((4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)(hydroxy)methyl)benzaldehyde
  • (4-(1,3-Dioxolan-2-yl)phenyl)(4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methanol (72.3 mg, 0.109 mmol) was placed in an 8 mL vial equipped with a stir bar then acetone (3 mL) and water (1 mL) were added. AMBERLYST™ 15 resin (70 mg) was added then the mixture was stirred at 60° C. for 2 h. The reaction mixture was cooled to room temperature then the resin was filtered off and rinsed with acetone. The solvent was removed under reduced pressure. The residue was dissolved in dichloromethane (20 mL) then dried over MgSO4 and filtered. The solvent was removed under reduced pressure. The resulting residue was purified by preparative TLC on a 2000 micron silica gel plate developed with 30% ethyl acetate/dichloromethane to yield 4-((4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)(hydroxy)methyl)benzaldehyde.
    • Step 5: 4-((4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)(hydroxy)methyl)benzoic acid
  • 4-((4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)(hydroxy)methyl)benzaldehyde (43.5 mg, 0.07 mmol) was dissolved in 1,4-dioxane (4 mL) then sulfamic acid (15.03 mg, 0.155 mmol) was added as a solid. A solution of sodium chlorite (17.50 mg, 0.155 mmol) in water (2 mL) was added dropwise with stirring and then the reaction mixture was stirred at room temperature for 15 hours. The reaction mixture was diluted with ethyl acetate (20 mL) and washed with brine (10 mL) then the organic layer was dried over MgSO4 and filtered. The solvent was removed under reduced pressure. The residue was purified by preparative TLC on a 2000 micron silica gel plate developed with 10% methanol/dichloromethane to yield 4-((4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)(hydroxy)methyl)benzoic acid.
  • MS: 634.2 (M+H+); 1H NMR (400 MHz, CDCl3+CD3OD) δ: 7.94 (d, J=8.1 Hz, 2H), 7.57 (s, 1H), 7.48 (d, J=8.6 Hz, 1H), 7.32 (d, J=8.1 Hz, 2H), 7.28 (d, J=8.6 Hz, 2H), 7.23 (d, J=8.6 Hz, 2H), 7.01 (d, J=8.1 Hz, 1H), 4.75 (tt, J=12.3, 3.9 Hz, 1H), 4.16 (d, J=12.6 Hz, 2H), 3.31 (t, J=13.1 Hz, 2H), 2.52 (q, J=12.3 Hz, 2H), 2.00-2.11 (m, 3H), 1.16 (d, J=7.1 Hz, 4H).
    • Step 6: 4-((4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methyl)benzoic acid
  • 4-((4-Chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)(hydroxy)methyl)benzoic acid (24.9 mg, 0.039 mmol) was placed in an 8 mL vial equipped with a stir bar then dry dichloromethane (1 mL) and triethylsilane (31.36 μL, 0.196 mmol) were added. Trifluoroacetic acid (15.13 μL, 0.196 mmol) was added then the reaction mixture was stirred at room temperature for 4 days at which time additional trifluoroacetic acid (15.13 μL, 0.196 mmol) and triethylsilane (31.36 μL, 0.196 mmol) were added. The reaction mixture was stirred at room temperature for 24 hours. An additional amount of trifluoroacetic acid (15.13 μL, 0.196 mmol) and triethylsilane (31.36 μL, 0.196 mmol) were added. The reaction mixture was stirred for an additional 5 days then the solvent was removed under reduced pressure. The residue was triturated with diethyl ether (3 mL) then the supernatant was decanted. This was repeated once more then the residual solvent was removed under reduced pressure to yield 4-((4-chlorophenyl)(2-cyclopropyl-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)methyl)benzoic acid trifluoroacetate salt as a white powder.
  • MS: 618.1 (M+H+); 1H NMR (400 MHz, DMSO-d6) δ: 7.90 (d, J=8.6 Hz, 2H), 7.55 (d, J=8.6 Hz, 1H), 7.50 (br. s., 1H), 7.36-7.43 (m, J=8.6 Hz, 2H), 7.20-7.28 (m, J=8.1 Hz, 2H), 7.15 (d, J=8.6 Hz, 2H), 7.04 (d, J=8.1 Hz, 1H), 5.94 (s, 1H), 5.05 (t, J=11.9 Hz, 1H), 3.98 (d, J=12.1 Hz, 2H), 3.52 (br. s., 2H), 2.38-2.45 (m, 1H), 2.17-2.36 (m, 2H), 2.08 (d, J=11.1 Hz, 2H), 1.09-1.24 (m, 4H).
    • Example DP-8 6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(tetrahydro-2H-pyran-4-yl)-1H-benzo[d]imidazole
  • Figure US20190031618A1-20190131-C00478
  • 6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-(tetrahydro-2H-pyran-4-yl)-1H-benzo[d]imidazole was prepared by according to the procedure as described in Example DP-4 above, substituting 4-aminotetrahydropyran for 4-aminomethyltetrahydropyran in Step 1.
  • MS: 515.2 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 8.09 (d, J=9.1 Hz, 1H), 8.00 (d, J=6.6 Hz, 1H), 7.30 (d, J=8.6 Hz, 4H), 7.10 (d, J=8.6 Hz, 4H), 6.52 (dd, J=9.1, 2.0 Hz, 1H), 6.42 (d, J=2.0 Hz, 1H), 3.91-3.99 (m, 2H), 3.83 (s, 3H), 3.32-3.41 (m, 2H), 3.22-3.32 (m, 1H), 1.80 (d, J=12.6 Hz, 2H), 1.49-1.62 (m, 2H).
    • Example DP-9 2-(6-(bis(4-chlorophenyl)methyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-v)-1H-benzo[d]imidazol-2-yl)prop-2-en-1-ol
  • Figure US20190031618A1-20190131-C00479
    • Step 1: methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)acetate
  • Methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (589.2 mg, 1.357 mmol, prepared as described in Example DL-1), 4-aminopiperidine-1-trifluoromethylsulfonyl hydrochloride (401 mg, 1.49 mmol) and K2CO3 (563 mg, 4.07 mmol) were placed in an 8 mL vial equipped with a stir bar then dry DMSO (5 mL) was added. The reaction mixture was stirred at 80° C. for 3 days, cooled to room temperature, and poured into water (30 mL). The solid was isolated by filtration and washed with water (2×10 mL). The precipitate was dissolved in ethyl acetate (50 mL), dried over MgSO4, and filtered. The solvent was removed under reduced pressure. The resulting residue was purified by chromatography on silica gel eluting with a 0-40% ethyl acetate/heptane gradient to yield methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)acetate.
    • Step 2: methyl 2-(4-amino-3-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate
  • Methyl 2,2-bis(4-chlorophenyl)-2-(4-nitro-3-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)acetate (612.2 mg, 0.947 mmol) was placed in a 40 mL vial equipped with a stir bar then iron powder (264.4 mg, 4.735 mmol) and ammonium chloride (506.6 mg, 9.47 mmol) were added. Anhydrous ethanol (16 mL) and water (4 mL) were added then the reaction was stirred at 80° C. for 4 hours. The reaction mixture was cooled to room temperature and diluted with dichloromethane (20 mL) then the suspension was filtered through CELITE. The filter was washed with dichloromethane (3×10 mL) then the solvent was removed under reduced pressure. The residue was dissolved in dichloromethane (30 mL), dried over MgSO4, and filtered. The solvent was removed under reduced pressure to yield methyl 2-(4-amino-3-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate, which was used directly in the next step without further purification.
    • Step 3: methyl 2,2-bis(4-chlorophenyl)-2-(4-(oxetane-3-carboxamido)-3-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)acetate
  • Oxetane-3-carboxylic acid (43.5 mg, 0.426 mmol) was placed in an 8 mL vial equipped with a stir bar then dry dichloromethane (5 mL) was added followed by diisopropylethylamine (0.094 mL, 0.527 mmol). Methyl 2-(4-amino-3-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)-2,2-bis(4-chlorophenyl)acetate (250 mg, 0.406 mmol) was added followed by HBTU (199.9 mg, 0.527 mmol). The reaction was stirred at room temperature for 18 hours. The reaction mixture was diluted with water (30 mL) then extracted with dichloromethane (3×10 mL). The organic extracts were combined, dried over MgSO4, and filtered. The solvent was removed under reduced pressure. The resulting residue was purified by chromatography on silica gel eluting with a 0-100% ethyl acetate/heptane gradient to yield methyl 2,2-bis(4-chlorophenyl)-2-(4-(oxetane-3-carboxamido)-3-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)acetate.
    • Step 4: methyl 2,2-bis(4-chlorophenyl)-2-(2-(3-hydroxyprop-1-en-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)acetate
  • Methyl 2,2-bis(4-chlorophenyl)-2-(4-(oxetane-3-carboxamido)-3-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)amino)phenyl)acetate (126.4 mg, 0.18 mmol) was placed in an 8 mL vial equipped with a stir bar then acetic acid (1 mL) was added. The reaction mixture was stirred at 80° C. for 36 hours then cooled to room temperature. The reaction was diluted with water (6 mL) then poured into saturated sodium bicarbonate solution (30 mL) and extracted with dichloromethane (3×20 mL). The organic extracts were combined, washed with brine (20 mL), dried over Na2SO4, and filtered. The solvent was removed under reduced pressure. The resulting residue was purified by preparative TLC using 2×2000 micron silica gel plates developed with 30% ethyl acetate/dichloromethane to yield methyl 2,2-bis(4-chlorophenyl)-2-(2-(3-hydroxyprop-1-en-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)acetate.
    • Step 5: 2,2-bis(4-chlorophenyl)-2-(2-(3-hydroxyprop-1-en-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)acetic acid
  • Methyl 2,2-bis(4-chlorophenyl)-2-(2-(3-hydroxyprop-1-en-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)acetate (16.1 mg, 0.024 mmol) was placed in an 8 mL vial equipped with a stir bar then methanol (1 mL) and 3 M sodium hydroxide (88.8 μL, 0.266 mmol) were added. The reaction mixture was stirred at 60° C. for 36 hours, then 10% citric acid solution (3 mL) and dichloromethane (3 mL) were added. The organic layer was separated then the aqueous phase was extracted with dichloromethane (3×3 mL). The organic extracts were combined, dried over MgSO4, and filtered. The solvent was removed under reduced pressure to yield 2,2-bis(4-chlorophenyl)-2-(2-(3-hydroxyprop-1-en-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)acetic acid, which was used directly in the next step without further purification.
    • Step 6: 2-(6-(bis(4-chlorophenyl)methyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-2-yl)prop-2-en-1-ol
  • 2,2-bis(4-chlorophenyl)-2-(2-(3-hydroxyprop-1-en-2-yl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-6-yl)acetic acid (9.2 mg, 0.0138 mmol) was placed in an 8 mL vial equipped with a stir bar then dry toluene (1 mL) was added. DBU (0.206 μL, 0.0014 mmol) was added via microsyringe and the solution was heated to 90° C. and stirred for 2 hours. The reaction mixture was cooled to room temperature, diluted with dichloromethane (1 mL) then applied to a 2000 micron silica gel preparative TLC plate. The plate was developed with 50% ethyl acetate/heptane to yield 2-(6-(bis(4-chlorophenyl)methyl)-1-(1-((trifluoromethyl)sulfonyl)piperidin-4-yl)-1H-benzo[d]imidazol-2-yl)prop-2-en-1-ol.
  • MS: 624.1 (M+H+); 1H NMR (400 MHz, CDCl3) δ: 7.68 (d, J=8.6 Hz, 1H), 7.29 (d, J=8.6 Hz, 4H), 7.22 (s, 1H), 7.00-7.07 (m, 5H), 5.88 (s, 1H), 5.65 (s, 1H), 5.36 (s, 1H), 4.71 (tt, J=12.5, 3.9 Hz, 1H), 4.55 (s, 2H), 4.13 (d, J=13.6 Hz, 2H), 3.17 (t, J=12.9 Hz, 2H), 2.47 (qd, J=12.9, 4.3 Hz, 2H), 1.93-2.03 (m, 2H).
    • Example BD-1 bis(4-chlorophenyl)(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)methanol
  • Figure US20190031618A1-20190131-C00480
    • Step 1: methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate
  • To a solution of methyl 2,2-bis(4-chlorophenyl)acetate (4.427 g; 15 mmol) in tetrahydrofuran (80 mL) under Argon was added potassium a 1M solution of tert-butoxide in THF (15 mL; 1M in THF; 15 mmol). The mixture was stirred for 15 min at 0° C. and a solution of 2,4-difluoronitrobenzene (2.531 g; 15.75 mmol) in tetrahydrofuran (20 mL) was added dropwise. The mixture was allowed to stir at room temperature overnight. The reaction mixture was quenched with a sat NH4Cl solution (20 mL). The organic phase was separated and dried over MgSO4, filtered, and evaporated. The residue was purified via flash column chromatography (eluent gradient: 0 to 70% CH2Cl2 in heptane). The desired fractions were combined and evaporated to yield methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate as a yellow oil.
  • Rf (CH2Cl2:heptane; 1:1)=0.31; No clear molecular ion observed; Purity: 78% pure @ 214 nm and 92% @ 254 nm
    • Step 2: tert-butyl 4-(((5-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-nitrophenyl)amino)methyl)piperidine-1-carboxylate
  • Methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (2.171 g; 5 mmol), tert-butyl 4-(aminomethyl)-4-hydroxypiperidine-1-carboxylate (1.286 g; 6 mmol), and diisopropylethylamine (2.154 mL; 12.5 mmol) were dissolved in acetonitrile (10.856 mL) in a sealable tube and the mixture was heated at 75° C. for 1 hour. HPLC/MS analysis of an aliquot revealed mostly desired material. The reaction mixture was purified via flash column chromatography to tert-butyl 4-(((5-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-nitrophenyl)amino)methyl)piperidine-1-carboxylate. The material was used in the next reaction without further purification.
  • (M-Boc)+=528.2/530.1
    • Step 3: tert-butyl 4-(((2-amino-5-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)phenyl)amino)methyl)piperidine-1-carboxylate
  • A solution of tert-butyl 4-(((5-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-nitrophenyl)amino)methyl)piperidine-1-carboxylate (1.6 g; 2.546 mmol) in THF (90 mL) and methanol (10 mL) in a 200 mL Parr flask was purged with nitrogen, and Raney-Ni (0.5 g) was added. The mixture was hydrogenated at room temperature overnight on a Parr apparatus under 15 psi hydrogen pressure. The catalyst was removed via filtration over CELITE and the filtrate was evaporated, yielding tert-butyl 4-(((2-amino-5-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)phenyl)amino)methyl)piperidine-1-carboxylate, which was used in the next reaction without further purification.
  • Purity: 77% pure @ 214 nm and 90% @ 254 nm; M+Na=620.2/622.2
    • Step 4: tert-butyl 4-((6-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidine-1-carboxylate
  • To a solution of tert-butyl 4-(((2-amino-5-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)phenyl)amino)methyl)piperidine-1-carboxylate (1.53 g; 2.55 mmol) in DMSO (5 mL) was added cyclopropanecarboxaldehyde (0.953 mL; 12.75 mmol) and the mixture was stirred for 2½ days at room temperature while open to the air. HPLC/MS analysis of an aliquot revealed complete disappearance of starting material with formation of desired product. The reaction mixture was diluted with water (50 mL) and extracted with a 1:1 mixture of diethyl ether and EtOAc (100 mL each). The organic layer was separated, dried over MgSO4, filtered, and evaporated. The residue was purified via flash column chromatography (eluent gradient: 30:70 EtOAc:heptane to 100% EtOAc). The desired fractions were combined and evaporated to yield tert-butyl 4-((6-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidine-1-carboxylate as an off-white solid.
  • Rf (100% EtOAc)=0.65; Purity: 91% pure @ 214 nm and 254 nm; MH+=648.3/650.3
    • Step 5: methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(piperidin-4-ylmethyl)-1H-benzo[d]imidazol-6-yl)acetate
  • To a solution of tert-butyl 4-((6-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)piperidine-1-carboxylate (500 mg; 0.771 mmol) in diethyl ether (9.23 mL) and 1,4-dioxane (4.61 mL) was added a 4N HCl in 1,4-dioxane solution (10 mL) and the mixture was stirred overnight at room temperature under Argon. Diethyl ether (50 mL) was added, and the mixture was stirred vigorously for 10 min. The solid was allowed to settle and the solvent was decanted. The residue was treated with additional diethyl ether (50 mL) and again decanted. Residual solvent was removed via evaporation and drying under vacuum to methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(piperidin-4-ylmethyl)-1H-benzo[d]imidazol-6-yl)acetate as a tan solid.
  • Purity: 88% pure @ 214 nm and 92% pure @ 254 nm; MH+=548.3/550.2
    • Step 6: evaporated methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate
  • To a solution of methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-(piperidin-1-ylmethyl)-1H-benzo[d]imidazol-6-yl)acetate (0.5 g; 0.805 mmol) and trimethylamine (0.336 mL; 2.414 mmol) in methylene chloride (20 mL) at 0*C under Argon was added dropwise a 1M solution of triflic anhydride (1M in CH2Cl2; 0.966 mL). The reaction mixture was allowed to stir for 1 hour at 0° C. HPLC/MS analysis of an aliquot revealed ˜2/3 conversion to desired material. Additional of triflic anhydride (1.932 mL; 1.932 mmol, 1M in CH2Cl2) was added, and the mixture was stirred for another hour at 0° C. HPLC/MS analysis of an aliquot revealed complete disappearance starting material and formation of desired product. Sat. NaHCO3 (10 mL) was added, and the mixture was stirred for 5 min. The organic layer was separated, dried over MgSO4, filtered, and evaporated. The residue was purified via flash column chromatography (eluent gradient: 20% EtOAc in heptane to 100% EtOAc). The desired fractions were combined and evaporated methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate as a tan solid.
    • Step 7: 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid
  • To a solution of methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate (260 mg; 0.382 mmol) in methanol (5 mL) in a sealable tube was added 3N NaOH in water (2 mL). The tube was sealed and the mixture was heated at 45° C. overnight. HPLC/MS analysis of an aliquot revealed complete disappearance of starting material and formation of desired material. EtOAc (50 mL) was added, followed by 2N HCl (6 mL). The organic phase was separated, and the aqueous layer was extracted with an additional EtOAc (50 mL). The combined organic layers were dried over MgSO4, filtered, and evaporated to yield 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid.
  • Purity: >95% pure @ 214 nm; 79% pure @ 254 nm; MH+=666.2/668.1
    • Step 8: 6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazole
  • 2,2-Bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid (260 mg; 0.39 mmol) and DBU (0.35 mL; 2.34 mmol) were combined in toluene (10 mL) under Argon and heated to 90° C. for 3 hours. HPLC/MS analysis of an aliquot revealed complete disappearance of starting material. The mixture was evaporated, dissolved in CH3CN (4 mL) and purified via reverse phase HPLC. The desired fractions were combined and lyophilized to 6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazole as a white solid.
  • Purity: 94% pure @ 214 nm and 95% pure @ 254 nm; MH+=622.2/624.2; 1H NMR (400 MHz, DMSO-d6) δ ppm 1.25-1.45 (m, 7H) 1.69 (br d, J=12.72 Hz, 2H) 2.12 (br s, 1H) 3.09 (br t, J=12.72 Hz, 2H) 3.74-3.84 (m, 2H) 4.41 (br d, J=5.62 Hz, 2H) 5.85 (s, 1H) 7.12-7.22 (m, 5H) 7.40 (d, J=8.07 Hz, 4H) 7.61 (br d, J=8.31 Hz, 1H) 7.71 (br s, 1H)
    • Step 9: bis(4-chlorophenyl)(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)methanol
  • 6-(Bis(4-chlorophenyl)methyl)-2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazole (80 mg; 0.109 mmol) and K2CO3 (150.1 mg; 1.085 mmol) were combined in DMSO (10 mL) in a 2 mL vial and the mixture was stirred overnight at room temperature while open to the air. HPLC/MS analysis of an aliquot revealed only presence of 1 A.
  • Two pellets (˜400 mg) of NaOH were added, and the mixture was continued to stir for 2½ days at room temperature while air was being bubbled through the reaction mixture. HPLC/MS analysis of an aliquot revealed complete conversion to desired material. Water (50 mL) and diethyl ether (250 mL) were added to the reaction mixture, and the organic phase was separated. The aqueous layer was extracted with diethyl ether (150 mL), and the combined organic layers were washed with brine (25 mL), dried over K2CO3, filtered, and evaporated. The residue was purified over a short silica column (eluent: 100% EtOAc). The desired fractions were combined and evaporated to yield bis(4-chlorophenyl)(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)methanol as a white powder.
  • Purity: >95% pure @ 214 and 254 nm; MH+=638.1/640.2; 1H NMR (400 MHz, DMSO-d6) δ ppm 1.11-1.39 (m, 6H) 1.60 (br d, J=13.20 Hz, 2H) 2.01 (br d, J=15.16 Hz, 1H) 2.19-2.38 (m, 1H) 3.09 (br t, J=12.10 Hz, 2H) 3.78 (br d, J=11.25 Hz, 2H) 4.18 (br d, J=6.85 Hz, 2H) 6.63 (s, 1H) 6.81-6.96 (m, 1H) 7.15-7.46 (m, O H)
    • Example BD-2 4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)-1-((trifluoromethyl)sulfonyl)piperidin-4-ol
  • Figure US20190031618A1-20190131-C00481
    • Step 1: tert-butyl 4-(((5-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-nitrophenyl)amino)methyl)-4-hydroxypiperidine-1-carboxylate
  • Methyl 2,2-bis(4-chlorophenyl)-2-(3-fluoro-4-nitrophenyl)acetate (2.171 g; 5 mmol), tert-butyl 4-(aminomethyl)-4-hydroxy-tetrahydro-1 (2H)-pyridinecarboxylate (1.382 g; 6 mmol), and diisopropylethylamine (2.154 mL; 12.5 mmol) were dissolved in acetonitrile (10.9 mL) in a sealable tube and the mixture was heated at 75° C. for 1 hour. HPLC/MS analysis of an aliquot revealed mostly desired material. The reaction mixture was purified via flash column chromatography to yield tert-butyl 4-(((5-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-nitrophenyl)amino)methyl)-4-hydroxypiperidine-1-carboxylate. The material was used in the next reaction without further purification.
  • Purity: >95% pure @ 214 and 254 nm; M-Boc=544.2/546.2
    • Step 2: tert-butyl 4-(((2-amino-5-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)phenyl)amino)methyl)-4-hydroxypiperidine-1-carboxylate
  • A solution of tert-butyl 4-(((5-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-nitrophenyl)amino)methyl)-4-hydroxypiperidine-1-carboxylate (2.05 g; 3.181 mmol) in tetrahydrofuran (100 mL) and methanol (10 mL) in a 200 mL Parr flask was purged with nitrogen, and H2 was added. The mixture was hydrogenated at room temperature for 6 hours in a Parr apparatus under 12 psi hydrogen pressure. HPLC/MS analysis of an aliquot revealed complete conversion to desired material. The catalyst was removed via filtration over CELITE. The filtrate was evaporated to dryness and stored under vacuum overnight to yield tert-butyl 4-(((2-amino-5-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)phenyl)amino)methyl)-4-hydroxypiperidine-1-carboxylate.
  • Purity: 93% pure @ 214 nm; >95% pure @ 254 nm; M+Na=636.2/638.3
    • Step 3: tert-butyl 4-((6-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)-4-hydroxypiperidine-1-carboxylate
  • To a solution of tert-butyl 4-(((2-amino-5-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)phenyl)amino)methyl)-4-hydroxypiperidine-1-carboxylate (1.954 g; 3.18 mmol) in dimethyl sulfoxide (5 mL) was added cyclopropylcarboxaldehyde (1.188 mL; 15.9 mmol) and the mixture was stirred overnight at room temperature while open to the air. HPLC/MS analysis of an aliquot revealed complete disappearance of starting material with formation of desired product. The reaction mixture diluted with water (50 mL) and extracted with a 1:1 mixture of diethyl ether and EtOAc (100 mL each). The organic layer was separated, dried over MgSO4, filtered, and evaporated. The residue was purified via flash column chromatography (eluent gradient: 1:1 EtOAc:heptane to 100% EtOAc). The desired fractions were combined and evaporated to yield tert-butyl 4-((6-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)-4-hydroxypiperidine-1-carboxylate as an off-white solid.
  • Rf (100% EtOAc)=0.52; Purity: >95% pure @ 214 and 254 nm; MH+=664.2/666.3
    • Step 4: 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((4-hydroxypiperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate
  • To a solution of tert-butyl 4-((6-(1,1-bis(4-chlorophenyl)-2-methoxy-2-oxoethyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)-4-hydroxypiperidine-1-carboxylate (615 mg; 0.925 mmol) in diethyl ether (2.9 mL) and 1,4-dioxane (1.45 mL) was added a 4N HCl in 1,4-dioxane solution (8 mL) and the mixture was stirred overnight at room temperature under Argon. Diethyl ether (50 mL) was added, and the mixture was stirred vigorously for 10 min. The solid was allowed to settle and the solvent was decanted. The residue was treated with additional diethyl ether (50 mL) and again decanted. Residual solvent was removed via evaporation and drying under vacuum to yield methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((4-hydroxypiperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate as a white solid.
  • Purity: >95% pure @ 214 and 254 nm; MH+=564.2/566.2
    • Step 5: A mixture of methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate and methyl 2,2-bis(4-chlorophenyl)-2-(3-(((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)-4-(trifluoromethylsulfonamido)phenyl)acetate
  • To a solution of methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((4-hydroxypiperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate (0.637 g, 1 mmol) and 2,6-di-tert-butyl-4-methylpyridine (718.7 mg, 3.5 mmol) in methylene chloride (20 mL) at 0° C. under Argon was added dropwise 1M triflic anhydride in methylene chloride (1.2 mL, 1.2 mmol). The reaction mixture was allowed to stir for 1 hour at 0° C. HPLC/MS analysis of an aliquot revealed ˜1/3 conversion to desired material and formation of about equal amounts of P2. An additional 2.4 equiv of 1M triflic anhydride in methylene chloride (2.4 mL, 2.4 mmol) was added, and the mixture was stirred for another hour at 0° C. HPLC/MS analysis of an aliquot revealed complete disappearance of 1 A and formation of roughly equal amounts of product. Sat. NaHCO3 (4 mL) was added, and the mixture was stirred for 10 min. The organic layer was separated, dried over MgSO4, filtered, and evaporated. The residue was purified via flash column chromatography (eluent gradient: 20% EtOAc in heptane to 100% EtOAc). The desired fractions were combined and evaporated to yield a ˜1:1 mixture of methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate and methyl 2,2-bis(4-chlorophenyl)-2-(3-(((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)-4-(trifluoromethylsulfonamido)phenyl)acetate, contaminated with ˜15% of an third unknown compound. The material was used as in the next reaction without further purification.
    • Step 6: A mixture of 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid and 2,2-bis(4-chlorophenyl)-2-(3-(((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)-4-(trifluoromethylsulfonamido)phenyl)acetic acid
  • To a solution of methyl 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetate (230 mg; 33.0%) and methyl 2,2-bis(4-chlorophenyl)-2-(3-(((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)-4-(trifluoromethylsulfonamido)phenyl)acetate (220 mg; 28.1%) in methanol (10 mL) in a sealable tube was added 3N NaOH in water (3 mL). The tube was sealed and the mixture was heated at 45° C. overnight. HPLC/MS analysis of an aliquot revealed complete disappearance of starting material and formation of desired material, contaminated with several impurities. EtOAc (50 mL) was added, followed by 2N HCl (6 mL). The organic phase was separated, and the aqueous layer was extracted with additional EtOAc (50 mL). The combined organic layers were dried over MgSO4, filtered, and evaporated. The residue, a mixture of 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid and 2,2-bis(4-chlorophenyl)-2-(3-(((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)-4-(trifluoromethylsulfonamido)phenyl)acetic acid, which was used in the next reaction without further purification.
  • MH+=682.0/684.2 and MH+=764.1/766.0
    • Step 7: Mixture of 4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)-1-((trifluoromethyl)sulfonyl)piperidin-4-ol and N-(4-(bis(4-chlorophenyl)methyl)-2-(((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)-1,1,1-trifluoromethanesulfonamide
  • A mixture of 2,2-bis(4-chlorophenyl)-2-(2-cyclopropyl-1-((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetic acid and 2,2-bis(4-chlorophenyl)-2-(3-(((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)-4-(trifluoromethylsulfonamido)phenyl)acetic acid (430 mg) and DBU (3.78 mmol; 0.565 mL) were combined in toluene (10 mL) under Argon and heated to 90° C. for 3 hours. HPLC/MS analysis of an aliquot revealed complete disappearance of starting material. The mixture was evaporated, dissolved in CH3CN (4 mL) and purified via reverse phase HPLC. The desired fractions were combined and lyophilized to yield a mixture of 4-((6-(bis(4-chlorophenyl)methyl)-2-cyclopropyl-1H-benzo[d]imidazol-1-yl)methyl)-1-((trifluoromethyl)sulfonyl)piperidin-4-ol as a white solid and N-(4-(bis(4-chlorophenyl)methyl)-2-(((4-hydroxy-1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)-1,1,1-trifluoromethanesuffonamide as a pink solid.
  • Purity: >95% pure @ 214 and 254 nm; MH+=638.1/640.2; 1H NMR (400 MHz, DMSO-d6) δ ppm 1.32 (br s, 4H) 1.56 (br d, J=12.96 Hz, 2H) 1.77 (br d, J=12.47 Hz, 2H) 2.33 (br s, 1H) 3.24-3.33 (m, 2H) 3.66 (br d, J=12.23 Hz, 2H) 4.49 (br s, 2H) 5.84 (s, 1H) 7.16 (br d, J=8.31 Hz, 4H) 7.26 (br d, J=7.09 Hz, 1H) 7.40 (d, J=8.31 Hz, 4H) 7.61 (br d, J=8.07 Hz, 1H) 7.73 (br s, 1H)
    • Example BD-3 2-((4-chlorophenyl)(2-ethyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00482
    • Step 1: tert-butyl ((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)carbamate
  • To a solution of tert-butyl (piperidin-4-ylmethyl)carbamate (35.93 mmol; 7.7 g) and triethylamine (107.8 mmol; 15 mL) in dichloromethane (150 mL) at 0° C. under Argon was added triflic anhydride (46.71 mmol; 7.86 mL) dissolved in dichloromethane (50 mL), and the reaction mixture was stirred overnight at room temperature. A sat NaHCO3 solution (75 mL) was added, and the mixture was stirred for 10 min. The organic phase was separated, dried over MgSO4, filtered, and evaporated. A brown oil was obtained that was treated with diethyl ether (200 mL) and stirred vigorously for 15 min. No solid formed. The diethyl ether was evaporated to yield tert-butyl ((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)carbamate as an orange oil. The material was used in the next reaction, without further purification.
  • (M-Boc)+=246.9
    • Step 2: (1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methanamine
  • To a solution of tert-butyl ((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)carbamate in diethyl ether (50 mL) and methanol (5 mL), a 4N HCl in 1,4-dioxane (50 mL) was added dropwise. The mixture was allowed to stir vigorously overnight at room temperature. An oil separated. Diethyl ether (100 mL) was added slowly, and the mixture was stirred vigorously for 10 min. The mixture was decanted and the residue was evaporated. The residue was stored overnight under vacuum, yielding (1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methanamine as a brown solid. The material was used in the next reaction without further purification.
  • MH+=246.9
    • Step 3: 5-fluoro-2-nitro-N-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)aniline
  • To a solution of 2.4-difluoronitrobenzene (6 mmol; 0.955 g) and triethylamine (18 mmol; 2.502 mL) in acetonitrile (20 mL) was added (1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methanamine (7.8 mmol; 2.205 mg), and the mixture was stirred overnight at room temperature under Argon. Methylene chloride (50 mL) was added, and the solution was washed with brine. The organic phase was dried over MgSO4, filtered, and evaporated. The residue was purified via flash column chromatography (eluent gradient: 10% to 50% EtOAc in heptane), yielding 5-fluoro-2-nitro-N-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)aniline as a yellow solid.
  • Rf (heptane:EtOAc; 3:1)=0.36
    • Step 4: 2-(4-chlorophenyl)-2-(4-nitro-3-(((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)acetonitrile
  • To a solution of 4-chlorobenzyl cyanide (3.893 mmol; 0.615 g) in tetrahydrofuran (25 mL) and isopropanol (5 mL) at room temperature under Argon was added potassium tert-butoxide (8.11 mmol; 0.91 mg) and the mixture was stirred for 10 min. A solution of 5-fluoro-2-nitro-N-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)aniline (3.244 mmol; 1.25 g) in tetrahydrofuran (10 mL) was added in one portion over a 5 min period and the reaction mixture turned a deep blue. The mixture was allowed to stir for 2 hours at room temperature. Sat NH4Cl (10 mL) and EtOAc (50 mL) were added, and the mixture was stirred vigorously for 10 min. The organic layer was separated, washed with brine (10 mL), dried over MgSO4, filtered, and evaporated. The residue was purified via flash column chromatography (eluent gradient: 10 to 50% EtOAc in heptane). The desired fractions were combined and evaporated to yield 2-(4-chlorophenyl)-2-(4-nitro-3-(((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)acetonitrile as a bright yellow solid.
  • Rf (heptane:EtOAc; 3:1)=0.20; M+Na=538.8; Purity: >95% @ 214 and 254 nm
    • Step 5: 2-(4-amino-3-(((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)-2-(4-chlorophenyl)acetonitrile
  • A solution of 2-(4-chlorophenyl)-2-(4-nitro-3-(((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)acetonitrile (2.9 mmol; 1.5 g) in tetrahydrofuran (50 mL) and water (5 mL) in a 200 mL Parr flask was purged with nitrogen, and Raney-Nickel (4.26 mmol; 0.25 g) was added. The mixture was hydrogenated at room temperature overnight on a Parr apparatus under 25 psi hydrogen pressure. HPLC/MS analysis of an aliquot revealed complete conversion to desired material. The catalyst was removed via filtration over CELITE. The filtrate was evaporated and the residue was used in the next reaction without further purification.
    • Step 6: 2-(4-chlorophenyl)-2-(2-ethyl-1-((1-((trifluoromethyl)sulfonyl)-piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetonitrile
  • To a solution of 2-(4-amino-3-(((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)-2-(4-chlorophenyl)acetonitrile (1.45 mmol; 705.66 mg) in DMSO (4 mL) in a 20 mL vial was added propanal (7.25 mmol; 1.02 mL) and the mixture was stirred overnight at room temperature while open to the air. HPLC/MS analysis of an aliquot revealed partial disappearance of starting material with formation of desired product. Additional propanal (7.25 mmol, 1.02 mL) was added, and the mixture was stirred overnight while the vial was capped. HPLC/MS analysis of an aliquot revealed complete disappearance of starting material with formation of desired product. The reaction mixture was purified via reverse phase HPLC (eluent gradient: 25 to 70% CH3CN in H2O containing 0.1% TFA). The desired fractions were combined and lyophilized to yield 2-(4-chlorophenyl)-2-(2-ethyl-1-((1-((trifluoromethyl)sulfonyl)-piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetonitrile as a white solid.
  • MH+=524.8; Purity: ˜95% @ 214 and 254 nm
    • Step 7: 2-(4-chlorophenyl)-2-(2-ethyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)ethanethioamide
  • 2-(4-chlorophenyl)-2-(2-ethyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetonitrile (0.372 mmol; 195.5 mg) and phosphorous pentasulfide (0.447 mmol; 0.2 g) were combined in ethanol (10 mL) in a sealable flask. The mixture was heated to 70° C. and the flask was sealed. The mixture was heated overnight at 70° C. and HPLC/MS analysis of an aliquot revealed clean conversion to desired material. The mixture was allowed to cool to room temperature, and brine (20 mL) and ethyl acetate (100 mL) were added. The organic layer was separated and washed with brine (50 mL). The organic layer was dried over MgSO4, filtered, and evaporated. The residue was purified via flash column chromatography (eluent gradient: 100% EtOAc) to yield 2-(4-chlorophenyl)-2-(2-ethyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)ethanethioamide as a white solid.
  • Rf (100% EtOAc)=0.33; MH+=558.8; Purity: 90% pure @ 214 nm and >95% pure @ 254 nm
    • Step 8: 2-((4-chlorophenyl)(2-ethyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • 2-(4-chlorophenyl)-2-(2-ethyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)ethanethioamide (0.116 mmol; 65 mg) and bromoacetaldehyde diethylacetal (0.465 mmol; 0.07 mL) were combined in acetic acid (5 mL) and water (0.2 mL) was added. The mixture was heated for 1 hour at 80° C. HPLC/MS analysis of an aliquot revealed complete conversion to desired material. The reaction mixture was lyophilized and the residue was purified via reverse phase HPLC (eluent gradient: 20% to 70% CH3CN in H2O, both containing 0.1% TFA). The desired fractions were combined and lyophilized to yield 2-((4-chlorophenyl)(2-ethyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole as an off-white solid.
  • Rf (EtOAc:heptane; 1:1)=0.27; 1H-NMR (DMSO-d6): 1H NMR (400 MHz, DMSO-d6) 5 ppm 1.41 (t, J=7.46 Hz, 3H) 1.68 (br d, J=12.72 Hz, 2H) 2.11 (br 1H) 2.23-2.44 (m, 1H) 3.03-3.22 (m, 4H) 3.67 (br s, 1H) 3.80 (br d, J=13.20 Hz, 2H) 4.31-4.57 (m, 2H) 6.24 (s, 1H) 7.36-7.53 (m, 5H) 7.72 (d, J=3.15 Hz, 1H) 7.76 (d, J=8.63 Hz, 1H) 7.83 (d, J=3.18 Hz, 1H) 8.02 (s, 1H); MH+=582.7; Purity: 93% pure @ 214 nm and >95% pure @ 254 nm
    • Example BD-4 2-((4-chlorophenyl)(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • Figure US20190031618A1-20190131-C00483
    • Step 1: 2-(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetonitrile
  • To a solution of 2-(4-amino-3-(((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)amino)phenyl)-2-(4-chlorophenyl)acetonitrile (0.75 mmol; 365.21 mg) in DMSO (4 mL) in a 20 mL vial was added propanal (2.25 mmol; 157.71 mL) and the mixture was stirred overnight at room temperature while open to the air. HPLC/MS analysis of an aliquot revealed partial disappearance of starting material. The reaction mixture was purified via reverse phase HPLC (eluent gradient: 35 to 55% CH3CN in H2O containing 0.1% TFA). The desired fractions were combined and lyophilized to yield 2-(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetonitrile as a white solid.
  • MH+=536.8; Purity: 95% @ 214 and 254 nm
    • Step 2: 2-(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)ethanethioamide
  • 2-(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)acetonitrile (0.372 mmol; 200 mg) and phosphorous pentasulfide (0.45 mmol; 0.2 g) were combined in ethanol (10 mL) in a sealable flask. The mixture was heated to 70° C. and the flask was sealed. The mixture was heated overnight at 70° C. and HPLC/MS analysis of an aliquot revealed clean conversion to desired material. The mixture was allowed to cool to room temperature, and brine (20 mL) and ethyl acetate (100 mL) were added. The organic layer was separated and washed with brine (50 mL). The organic layer was dried over MgSO4, filtered, and evaporated. The residue was purified via flash column chromatography (eluent gradient: 100% EtOAc) to yield 2-(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)ethanethioamide as a white solid.
  • Rf (100% EtOAc)=0.59; MH+=570.8; Purity: 90% pure @ 214 nm and >95% pure @ 254 nm
    • Step 3: 2-((4-chlorophenyl)(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole
  • 2-(4-chlorophenyl)-2-(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)ethanethioamide (0.263 mmol; 150 mg) and bromoacetaldehyde diethylacetal (1.051 mmol; 0.158 mL) were combined in acetic acid (5 mL) and water (0.2 mL) was added. The mixture was heated for 1 hour at 80° C. HPLC/MS analysis of an aliquot revealed complete conversion to desired material. The reaction mixture was lyophilized and the residue was purified via reverse phase HPLC (eluent gradient: 20% to 70% CH3CN in H2O, both containing 0.1% TFA). The desired fractions were combined and lyophilized to yield 2-((4-chlorophenyl)(2-cyclopropyl-1-((1-((trifluoromethyl)sulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazol-6-yl)methyl)thiazole as an off-white solid.
  • Rf (EtOAc:heptane; 1:1)=0.27; 1H-NMR (DMSO-d6): 1H NMR (400 MHz, DMSO-d6) δ ppm 1.32-1.48 (m, 6H) 1.73 (br d, J=12.47 Hz, 2H) 2.17 (br s, 1H) 2.54-2.63 (m, 1H) 3.11 (br t, J=12.23 Hz, 2H) 3.81 (br d, J=12.47 Hz, 2H) 4.44 (br d, J=4.89 Hz, 2H) 6.20 (s, 1H) 7.35-7.46 (m, 5H) 7.65 (d, J=8.31 Hz, 1H) 7.71 (d, J=3.42 Hz, 1H) 7.83 (d, J=3.18 Hz, 1H) 7.94 (s, 1H); MH+=594.8; Purity: 95% pure @ 214 nm and >95% pure @ 254 nm
    • Biological Examples
  • CB1 and CB2 receptors are Gi-coupled GPCR. Activation of CB1 and CB2 receptors results in a decrease in cAMP production. An inverse agonist of the CB1 or CB2 receptor results in the opposite effect, an increase of cAMP production. The principle of this assay is based on HTRF® technology (Homogeneous Time-Resolved Fluorescence). The method is a competitive immunoassay between native cAMP produced by cells and the cAMP labeled with the fluorophore d2. The tracer binding is quantified by a Mab anti-cAMP labeled with Eu3+TBP-NHS Cryptate (supplied as part of the assay kit). The specific signal (i.e. energy transfer) is inversely proportional to the concentration of cAMP in the standard or sample.
    • Biological Example 1: CB-1 and CB-2 In Vitro Assay Preparation of Cells
  • Human CB1R (Cannabinoid receptor 1) was stably transfected in HEK-293 cells (DiscoveRx, cat: 93-0200C1). Human CB2R (Cannabinoid receptor 2) was stably transfected in HEK-293 cells (DiscoveRx, cat: 93-0201C1). Cell cultures were maintained in media: DMEM (Invitrogen Cat#12430-054) supplemented with 10% HI FBS (Invitrogen Cat#16140-071), 1% L-glutamine (Invitrogen Cat#25030-081), 0.2 mg/ml Hygromycin B (Invitrogen Cat#10687-010), 600 μg/mL G418 (Invitrogen Cat#10131-035), and 1× Penn/Strep (Invitrogen 15140-122). After cell expansion, aliquots were cryo-stored in media containing 5% DMSO (Pierce Cat#20684).
  • Plating Cells from Cryostore
  • One day prior to experiments media was warmed to 37° C. and the cryo-stored cells were thawed in a 37° C. water bath. The cells were then added to media (10× volume) and the mixture was centrifuged at 1000 RPM for 5 min. The supernate was removed and the cells were re-suspended in media. A sample of the cell suspension was evaluated on a Cedex XS automated cell counter (Innovatis Systems) to determine viable cells/ml. Additional media was added to the cells to achieve a final cell density of 4E5 cells/mL. The cells were then plated into 384 well PDL white solid bottom plates (Greiner, Cat#781945) at 20 μL per well using a Multidrop (Thermo Scientific). Cells were removed from Row P (location of cAMP standards). Two columns of cells were plated into a clear bottom 384 well PDL coated plate (Greiner, Cat#781944) to view confluence the day of the assay. The cell plates were lidded and stored for 15 minutes in a hood, then transferred to an incubator (37° C., 5% CO2, 95% humidity) overnight.
    • Preparation of Compound Plates
  • DMSO was added to all wells of 384 well V bottom polystyrene plate (Greiner, Cat#781280) except to columns 1 and 13, rows O and P and wells M13-M23 and N13-N23. Test compounds (60 μL, 10 mM) were added to Column 1 and 13 (A1 through N1 and A13 through L13). Test compounds were serially diluted 1/3 by transferring and mixing 20 μl sample with 40 μL DMSO. This process resulted in a plate of 26 compounds, 11 doses per compound, 10 mM to 0.5 μM.
    • Preparation of Control Plate
  • DMSO (40 μL) was added to wells of 384 well V bottom polystyrene plate: O2 through O11, M14 through M23, N14 through N23, and O14 through O23. AM630 (also known as [6-iodo-2-methyl-1-[2-(4-morpholinyl)ethyl]-1H-indol-3-yl](4-methoxyphenyl)-methanone, Cayman Chemical, Cat#10006974) (60 μL, 10 mM) was added to O1; and 1-(2,4-dichlorophenyl)-7-[(4-fluorophenyl)methylene]-4,5,6,7-tetrahydro-N-1-piperidinyl-1H-benzimidazole-3-carboxamide (60 μL, 10 mM) was added to N13. The control was serially diluted 1/3 by transferring and mixing 20 μl sample with 40 μL DMSO. This process resulted 11 doses per control, 10 mM to 0.5 μM.
  • cAMP Assay Protocol
  • Cells plated the day prior to the assay in clear bottom plates were viewed on an inverse microscope to ensure confluency in the range of 60-75%.
  • The following mixtures and buffer solutions were prepared: (a) Buffer 1: HBSS (Mediatech Cat#21-023-CV) with 5 mM HEPES (1 mM stock, Gibco BRL Cat#15630-056) and 0.1% BSA (7.5% stock, Invitrogen Cat#15260-037); (b) Buffer 2: 0.5 mM IBMX (200 mM stock in DMSO, Sigma 15879) in Buffer 1; (c) 1 μM cAMP Standard (50 μM stock, Perkin Elmer Cat# AD0262) diluted in Buffer 2 and serially diluted in Buffer 2, 12 doses @ 1/2 dilutions resulting in a dose range of 1 μM to 0.5 nM; (d) d2 labelled cAMP (CisBio HTRF Detection Kit Cat #62AM4PEB reconstituted with 6 ml dH20) diluted 1/20 with lysis buffer (CisBio HTRF Detection Kit Cat #62AM4PEB); (e) anti-cAMP (CisBio HTRF Detection Kit Cat #62AM4PEB reconstituted with 5 ml dH20) diluted 1/20 with lysis buffer (CisBio HTRF Detection Kit Cat #62AM4PEB); and (f) Forskolin (Sigma Cat#F6886, 10 mM in DMSO) diluted first in DMSO to 1 mM and then to 1.5 μM in Buffer 2.
  • A FLEXDROP (Perkin Elmer) was cleaned with ethanol then water, and primed with Buffer 2. A 384 well V bottom polypropylene plate containing d2 labelled cAMP and a second 384 well V bottom polypropylene plate containing anti-cAMP was prepared (50 μl per well). Media as “dumped” from the cell plate and 30 μL Buffer 1 was added to each well using a Multidrop. The content of the cell plate was again “dumped” and 10 μL Buffer 2 was added to each well using a Flexdrop. 12.5 nL test compound dilutions or control compound dilutions (10 mM to 0.5 μM) were added to the cell plate using an ECHO 555 (Labcyte). The cell plate was mixed (Speed 6, Lab-Line Instruments Titer Plate Shaker) and centrifuged (1000 RPMs, 1 min). Using the Flexdrop, 2 μl additions were made into the cell plate: Buffer 2 was added to Column 24; and, 1.5 μM Forskolin was added to columns 1 through 23. Final volume of the cell plate was 12 μl with 250 nM Forskolin in all wells except column 12, and serial dilutions of test compound or control ranging from 10 μM to 0.5 nM. The cell plate was again mixed (speed 6) and centrifuged (1000 RPMs, 1 min). The cell plate was incubated for 30 minutes at room temperature (˜27° C.). The contents of row P were removed and the cAMP standard dilutions were added in duplicate to Row P (P1-12 and P13-24). After incubation, 6 μL d2 labelled cAMP and 6 μL of Anti-cAMP were added to all wells of the cell plate using a BioMek FX (Beckman Coulter). The cell plate was again mixed (speed 6) and centrifuged (1000 RPMs, 1 min) and was incubated for 60 minutes in the dark at room Temp (˜27° C.).
  • After this final incubation, the cell plate was read in HTRF mode (fluorescence at 665 nm and 620 nm) on an Envision plate Reader (Perkin Elmer). The Envision reader outputs a ratio of channel 1/channel 2 fluorescence×10,000 (Normalized signal (NS)). Amount of cAMP in nM was calculated for each well (based on NS) from a cAMP standard curve located on each plate (at P1-12 and P13-24). EC50 values were determined from a 4-point fit (Hill equation) of a single 11-point compound dosing. Hill slope was fixed at 1.0. The bottom of the dose response curve was fixed because it was always the same as that of the control wells containing vehicle (DMSO) instead of compound. The top of the dose response curve was floated unless a plateau was not reached.
  • Representative compounds of formula (I) of the present invention were tested for activity against the CB-1 and CB-2 receptors, according to assay protocol as outlined in Biological Example 1, with EC50 results (in micromolar) as listed in Table BIO-1, below. Where a compound was tested more than once, the result presented below represents a mean of the individual measurements.
  • TABLE BIO-1
    Biological Activity Against CB-1 and CB-2 Receptors
    CB1 HEK_cAMP CB2 HEK_cAMP
    ID No. EC50 μM EC50 μM
    1 0.0114 2.8458
    2 0.4790 5.0304
    3 NT NT
    4 0.0098 2.1597
    5 0.0330 0.6324
    6 0.0283 3.8761
    7 0.0267 7.5998
    8 0.0339 0.0782
    9 0.0170 0.7978
    10 0.3219 1.7494
    11 0.0494 4.9694
    12 >10 >10
    13 >10 >10
    14 0.0170 >10
    15 0.0730 0.6997
    16 0.1732 0.6981
    17 0.0829 9.3994
    18 0.0533 >10
    19 0.0938 >10
    20 0.0156 >10
    21 0.2526 4.5436
    22 0.0890 1.5237
    23 0.1817 1.8763
    24 1.9364 7.2996
    25 1.6523 >10
    26 0.1028 3.3136
    27 0.0110 >10
    28 0.0215 >10
    29 NT NT
    30 0.0402 1.6222
    31 0.1500 2.9999
    32 0.0395 2.1563
    33 3.8001 2.8774
    34 0.0375 6.7999
    35 3.3435 4.3631
    36 0.0854 0.8692
    37 0.0876 7.2594
    38 4.3003 1.6971
    40 0.1044 5.1156
    41 0.0306 >41.9952
    42 0.0908 8.6956
    43 0.1135 12.1199
    44 0.0146 2.4378
    45 0.5933 >41.9952
    46 0.4503 >41.9952
    47 0.0024 17.1317
    48 0.0030 3.8415
    49 0.0085 4.3954
    50 0.0481 >10
    52 0.0092 >10
    53 0.0267 3.0033
    54 0.5962 3.9600
    55 0.0123 2.7353
    56 0.0193 >10
    57 0.0649 8.8389
    59 0.0038 >20.9991
    61 0.0190 >20.9991
    63 >10 >20.9991
    64 0.0026 2.3534
    65 0.1543 >10
    67 0.3633 6.8945
    68 0.1304 10.2991
    69 0.0086 1.2067
    70 0.0083 5.8237
    71 0.0274 4.8764
    72 NT NT
    73 0.0185 5.2481
    74 0.0706 5.3889
    75 0.0357 1.1476
    76 0.0067 2.0578
    77 0.0356 >10
    78 0.1506 >20.9991
    79 0.0326 5.0910
    80 0.0866 11.3606
    81 0.0141 3.2033
    82 0.9949 >41.9952
    83 0.0426 11.3006
    84 0.0677 >10
    85 0.0174 8.1003
    86 0.0150 10.2000
    87 0.0090 8.9991
    88 0.0330 >10
    89 0.0072 7.8995
    90 0.0224 >10
    91 0.0324 9.3994
    92 0.0159 5.1916
    93 0.0639 1.7494
    94 0.0261 4.7621
    95 0.0112 >10
    96 0.0273 7.9232
    97 0.0187 >10
    98 0.0162 >10
    99 0.0188 4.7370
    100 0.0194 6.2994
    101 0.0285 >10
    102 0.0333 8.1414
    104 0.0121 5.9993
    105 0.0051 8.0002
    106 0.0601 >10
    118 0.0980 >10
    119 0.0949 6.7406
    120 0.0249 5.4338
    121 0.0051 7.9689
    122 0.0049 9.0991
    123 0.0134 7.5007
    124 0.0349 >10
    125 0.0177 9.8992
    126 0.0042 7.7965
    127 0.0050 >10
    128 0.0069 4.8933
    129 0.0198 >10
    130 0.0155 8.1003
    131 0.0080 6.4998
    132 >10 >10
    133 0.8125 3.5003
    134 4.3441 >10
    135 0.0532 >10
    136 0.0320 9.0991
    137 8.9970 >10
    138 0.0139 3.9048
    140 0.0799 >10
    141 0.0033 >10
    142 0.0215 5.2481
    143 3.9228 >10
    144 0.0152 4.7000
    145 0.4316 >10
    146 0.0337 >10
    147 0.0102 7.5631
    148 0.0096 4.9272
    150 0.9721 >10
    151 0.0665 >10
    152 1.5907 6.4003
    153 0.0087 3.6058
    154 0.3111 8.0002
    155 0.0067 >10
    157 0.1897 3.3822
    158 0.0679 5.7996
    159 0.2897 3.6208
    160 0.0364 5.7996
    161 0.0080 2.1086
    162 0.0062 4.4864
    163 0.0916 7.7768
    164 0.0275 >10
    165 >10 >10
    166 0.0037 5.0153
    167 0.0854 4.3995
    168 0.0912 >10
    169 0.0450 7.8995
    170 0.0044 0.3143
    171 0.1673 >10
    172 0.0812 >10
    173 0.0559 9.2003
    174 6.5524 >10
    175 5.4225 4.7479
    176 >10 >10
    177 0.0967 7.8995
    178 0.0675 >10
    179 0.0017 >10
    180 0.0171 >10
    181 0.0250 >10
    182 0.2552 2.9322
    183 0.0314 6.2994
    184 0.0314 >10
    185 0.1407 7.5998
    186 0.0253 >10
    187 0.0518 >10
    188 0.1600 >10
    189 0.0295 >10
    190 0.0113 0.6987
    191 0.0210 >10
    192 5.0478 >10
    193 >10 >10
    198 4.7995 >10
    199 0.1732 6.4998
    200 4.7239 6.3067
    201 0.0638 0.9899
    202 0.0312 >10
    203 0.0324 >10
    204 0.0944 >10
    205 0.0367 5.7319
    206 0.1007 >10
    207 0.0064 4.6612
    211 0.5888 10.2000
    212 3.7420 >10
    213 8.3081 >10
    214 0.0225 5.0478
    215 0.0020 >10
    216 0.0062 >10
    217 0.0092 >10
    218 0.0072 1.4421
    220 1.3674 5.8398
    221 0.0085 3.2984
    222 0.0110 4.9636
    223 0.0248 3.3435
    224 0.0060 >10
    225 0.0415 >10
    226 0.0167 7.8235
    227 2.0446 >10
    228 8.3004 >10
    229 0.0137 1.7750
    230 0.0919 5.8993
    231 0.7089 >10
    232 0.0176 8.8573
    234 0.0161 9.5280
    235 0.9404 >10
    238 0.0019 >10
    239 0.0100 2.6455
    240 0.0149 2.1023
    241 0.4589 7.8995
    242 0.0180 5.6872
    243 0.0359 0.3470
    244 0.5337 >10
    245 0.2834 >10
    246 1.4325 >10
    247 0.1285 >10
    248 4.2355 >10
    249 0.0050 1.7147
    250 0.0029 9.3994
    251 0.0058 0.7301
    252 0.0131 6.2445
    253 0.0047 2.4221
    254 0.0366 1.2491
    255 0.0073 >10
    256 0.1287 >10
    257 0.0054 >10
    258 0.0201 >10
    259 0.0037 >10
    260 0.0015 >10
    261 0.0219 >10
    262 0.0155 >10
    266 0.0184 >10
    267 0.0070 >10
    268 0.8764 >10
    269 1.0316 >10
    270 0.0066 9.8992
    271 0.0021 >10
    272 0.0108 >10
    273 0.0336 9.6006
    274 0.1327 >10
    275 0.0016 >10
    276 0.0093 2.6080
    277 0.0047 >10
    278 0.0505 >10
    279 0.0322 >10
    280 0.0105 >10
    281 0.0125 >10
    282 0.0073 >10
    283 0.0036 0.9601
    284 0.0057 >10
    285 0.0034 >10
    286 0.0382 >10
    287 0.0024 4.5888
    288 0.0023 >10
    289 0.0292 >10
    291 2.2646 >10
    292 2.8913 >10
    293 7.4302 >10
    294 0.0046 >10
    295 0.0050 8.9991
    297 0.6148 >10
    298 0.9057 8.9991
    299 0.5778 1.0280
    300 0.1631 >10
    301 0.0433 >10
    303 0.0174 >10
    305 2.8145 >10
    306 0.4100 >10
    308 0.0636 >10
    309 0.0034 5.2000
    311 0.0172 8.6000
    312 0.0492 1.5000
    313 0.4163 >10
    314 0.0201 2.7855
    315 0.0053 5.4001
    316 0.0028 3.8646
    317 0.0332 3.6543
    318 0.0069 >10
    319 0.0225 >10
    320 0.0693 >10
    321 0.0062 4.0253
    322 0.6206 >10
    323 0.0165 >10
    324 0.0102 3.8833
    328 0.0084 >13.9991
    329 0.3788 >10
    330 0.1624 >10
    331 0.2395 >10
    332 0.0147 4.7000
    333 0.4365 >10
    334 0.3158 >10
    335 0.0056 >10
    336 0.2597 7.2260
    337 1.1779 >10
    338 0.0597 4.0004
    339 2.4082 >10
    340 1.4421 >10
    341 1.3289 >10
    342 0.1842 >10
    343 0.1959 >10
    344 >10 >10
    345 >10 >10
    346 0.0324 >10
    347 2.7829 >10
    348 0.8670 >10
    349 7.2410 >10
    350 0.0347 >10
    351 >10 >10
    352 >10 >10
    353 >10 >10
    354 5.4375 >10
    355 0.0129 1.9670
    356 >10
    357 >10
    358 >10
    359 >10
    360 >10
    361 2.0179 >10
    362 0.2125 >10
    363 2.2930 >10
    366 >10 >10
    367 1.0770 2.7657
    368 >10 >10
    369 >10 >10
    374 1.1179 >10
    375 0.7549 >10
    376 0.4410 0.2720
    377 >10 >10
    378 >10 >10
    379 >10 >10
    380 0.2430 >10
    381 0.7190 >10
    382 4.3241 >10
    383 2.7240 >10
    384 0.0120 >10
    385 0.5240 >10
    386 0.0220 >10
    387 0.5509 >10
    388 1.7591 1.6308
    389 >10 >10
    390 0.2420 >10
    391 0.0600 >10
    393 0.0280 0.0630
    394 4.8362 >10
    395 0.1370 >10
    396 0.2210 0.0910
    397 >10 >10
    398 0.0210 >10
    399 0.1630 >10
    400 0.0060 >10
    401 6.0200 >10
    402 0.1920 >10
    403 0.5690 >10
    404 6.1518 >10
    405 4.4926 3.3504
    406 1.6912 >10
    408 3.1463 >10
    409 0.0478 >10
    410 0.3078 >10
    411 0.3762 >10
    412 0.6232 >10
    413 0.3146 >10
    414 1.4894 >10
    415 >10 >10
    416 0.3923 >10
    417 2.5369 >10
    418 1.0777 >10
    419 1.1836 >10
    420 0.2312 >10
    421 0.1117 >10
    422 0.5977 >10
    423 0.0170 >10
    424 2.3163 >10
    429 0.4374 >10
    431 0.1114 >10
    432 0.0643 >10
    433 >10 >10
    434 0.0227 >10
    435 >10 >10
    436 0.4730 >10
    437 0.1920 >10
    438 0.3150 >10
    439 >10 >10
    440 0.9991 >10
    441 2.0907 >10
    442 3.4041 >10
    443 1.4332 4.9454
    444 0.5353 >10
    445 0.9473 >10
    446 0.0899 >10
    448 0.1000 >10
    449 >10 >10
    451
    452 0.8128 >6.70039
    455 2.4149 >7.39946
    456 >10 >9.20026
    460 >10 >10
    462 >10 >6.59933
    463 0.1642 >7.59976
    464 0.2116 >7.19946
    465 0.2428 >10
    466 >8.69961 1.4315
    474 NT NT
    NT = Not Tested
  • Additionally, the compound of formula (II) was tested according to the procedures as described above and measured to exhibit the following activity against the CB-1 and CB-2 (IC50 in micromolar):
      • CB-1 receptor: IC50=0.0135 μM
      • CB-1 receptor: IC50=>10 μM
    Biological Example 2—Prophetic Example CB-1 & CB-2 Receptor Binding Assay Experimental Procedure CB-1 Membrane Binding:
  • Into Greiner V bottom polypropylene plates, hCB1-CHO-K1 membranes (2 μg/well final concentration) in assay buffer (50 mM Tris-HCl pH 7.4, 5 mM MgCl2 and 0.5 mg/ml (0.05%) Ultra fatty acid free BSA) are dispensed. Membranes were purchased from Perkin Elmer. Test compounds are then added to each well and then [3H] CP 55, 940 (0.4 nM final well concentration) in assay buffer (50 mM Tris-HCl pH 7.4, 5 mM MgCl2 and 0.5 mg/ml (0.05%) Ultra fatty acid free BSA) is added. Samples are mixed and incubated for 90 min at 30° C. in the Greiner V Bottom Polypropylene plate. After incubation, assay reagents are transferred to a blocked 384 well polypropylene filter plates. The binding reaction is stopped by filtration and washed seven times with ice cold rinse buffer. Filter plates are then dried overnight at room temperature. The next day, plate bottoms are sealed with plate tape and 15 μl MicroScint 20 is added to each well. Plates are incubated for 2 h and radioactivity is measured by Topcount.
    • Experimental Procedure CB-2 Membrane Binding—Prophetic Example:
  • Into Greiner V bottom polypropylene plates, hCB2-HEK293 membranes (2 μg/well final concentration) in assay buffer (50 mM Tris-HCl pH 7.4, 5 mM MgCl2 and 0.5 mg/ml (0.05%) Ultra fatty acid free BSA) are dispensed. Membranes are prepared as described in FELDER, C. C., et al., Molecular Pharmacology, 1992, pp 838-845, Vol. 42. Test compounds are then added to each well and then [3H] CP 55, 940 (0.5 nM final well concentration) in assay buffer (50 mM Tris-HCl pH 7.4, 5 mM MgCl2 and 0.5 mg/ml (0.05%) Ultra fatty acid free BSA) is added. Samples are mixed and incubated for 90 min at 30° C. in the Greiner V Bottom Polypropylene plate. After incubation, assay reagents are transferred to a blocked 384 well polypropylene filter plates. The binding reaction is stopped by filtration and washed nine times with ice cold rinse buffer. Filter plates are then dried overnight at room temperature. The next day, plate bottoms are sealed with plate tape and 15 uL MicroScint 20 is added to each well. Plates are incubated for 2 h and radioactivity is measured by Topcount.
    • Total Binding:
  • Total Binding levels are achieved by combining membrane, DMSO, and [3H] CP-55,940 (also known as 5-(1,1-dimethylheptyl)-2-[(1R,2R,5R)-5-hydroxy-2-(3-hydroxypropyl)cyclohexyl]-phenol).
    • Non-Specific Binding (NSB):
  • Non-Specific Binding (NSB) levels are achieved by combining membrane, 10 μM final concentration WIN-55,212 (also known as (R)-(+)-[2,3-dihydro-5-methyl-3[(4-morpholinyl)methyl]pyrrolo[1,2,3-de]-1,4-benzoxazinyl]-(1-naphthalenyl)methanone mesylate, Tocris Biosciences Cat#1038), and [3H] CP-55,940 (also known as 5-(1,1-dimethylheptyl)-2-[(1R,2R,5R)-5-hydroxy-2-(3-hydroxypropyl)cyclohexyl]-phenol).
    • Data Analysis:
  • Top Count raw data files are used for data analysis as follows:
  • Non-specific binding (NSB=10 μM WIN-55,212+Membrane+[3H] CP-55,940) is used as the negative control, while the Total Binding (TB=DMSO+Membrane+[3H] CP-55,940) is used as the positive control.
  • Excel data file reports are generated by the PE TopCount and imported into Excel for calculations or are imported into a macro driven Excel template maintained by Lead Generation—Biology.
  • IC50 data is calculated using raw CPM values. Curves are fitted individually from singlet 11 point dosing curves+1% DMSO Control. IC50 values are fit appropriately and calculated using the following equation:
  • v = V min + V 0 - V min 1 + ( [ I ] IC 50 ) h
  • Vmin, CPM at maximum inhibition; Vo, CPM at zero inhibition; IC50, inhibitor concentration at 50% inhibition; h, Hill coefficient.
  • Maximal compound % inhibition of control treated wells is also noted since some compounds may exhibit values suitable for calculating IC50's.

  • % Inhibition of Total Binding=(1−(CPM Compound Treated Well CPM Control Treated Well))*100
    • In Vivo Biological Assays Animals, Diets and Test Compound:
  • Male 14-20-week old diet-induced obese mice are ordered from Taconic. Mice were started on a 60% fat diet (D12492, Research Diets, New Brunswick, N.J.) at 6 weeks of age. Mice are single-housed.
  • Male Sprague Dawley rats are ordered from Charles River (225-250 gm upon arrival). They are fed standard chow diet (Purina 5001) and housed 2 per cage. Male C57bl/6j mice are ordered from Charles River at 22-25 g and housed 3 per cage. They are fed standard chow (Purina 5001). All animals are housed in a temperature-controlled room with 12-hour light/dark cycle. Animals are given food and water ad libitum, except as noted.
  • Test compounds are formulated in 10% PEG400 and 10% solutol or 10% PEG400 and 20% solutol. Test compounds are administered by oral gavage (5 ml kg−1 or 10 ml kg−1).
    • Biological Example 3: Mouse Fast PK/BBB
  • Male C57bl/6j mice were dosed with test compounds at 20 or 30 mg/kg. Plasma was collected via retro-orbital bleeding at 1 hr and 4 hrs after dosing. Whole brain without cerebellum was collected at 4 hrs after dosing. Wet brain weight was recorded before freezing. Brains were homogenized in saline and sent for analysis for determination of concentration of test compound.
  • Representative compounds of formula (I) of the present invention were tested according to the procedure described above, with results as listed in Table BIO-2 below.
  • TABLE BIO-2
    Mouse Fast PK/BBB Results
    Plasma Brain
    Mean Conc. (ng/mL) ± Mean Conc. (ng/mL) ±
    ID No. Dose Time Std. Dev (ng/mL) Std. Dev (ng/mL)
    400 20 1 hr  1553 ± 65.7   362 ± 36.9
    4 hr  947 ± 191   292 ± 61.0
    335 20 1 hr 3943 ± 480   53.3 ± 14.0
    4 hr 2265 ± 822   104 ± 19
    328 20 1 hr 2644 ± 337   39.1 ± 1.95
    4 hr 1601 ± 109   99.3 ± 13.3
    320 20 1 hr 2895.0 ± 244.9   121.5 ± 18.1
    4 hr 1609.4 ± 207.2  167.4 ± 9.4
    318 20 1 hr  5876 ± 1294   57.8 ± 14.8
    4 hr 2131 ± 245   69.4 ± 4.4
    316 20 1 hr 3979 ± 448   22.9 ± 2.7
    4 hr 247 ± 36   30.2 ± 5.2
    315 20 1 hr 2870.2 ± 441.2   33.8 ± 5.0
    4 hr  785.4 ± 190.6   48.4 ± 0.4
    276 20 1 hr   227 ± 67.2 BLOQ ± NA
    4 hr  27.7 ± 13.1 BLOQ ± NA
    259 20 1 hr 1422 ± 489 BLOQ ± NA
    4 hr 436 ± 83 BLOQ ± NA
    242 20 1 hr  789 ± NA BLOQ ± NA
    4 hr  62.1 ± 20.0 BLOQ ± NA
    232 30 1 hr  81.9 ± 22.7 BLOQ ± NA
    4 hr  7.11 ± 6.55 BLOQ ± NA
    221 20 1 hr   160 ± 69.7 BLOQ ± NA
    4 hr  33.8 ± 11.2 BLOQ ± NA
    148 30 1 hr 13541.7 ± 272.8    334.0 ± 108.4
    4 hr  7745.9 ± 3102.4   417.4 ± 50.0
    129 30 1 hr 1368 ± 749 BLOQ ± NA
    4 hr  84.6 ± 62.9 BLOQ ± NA
    125 30 1 hr  4493 ± 1011 BLOQ ± NA
    4 hr  390 ± 157 BLOQ ± NA
    124 30 1 hr 2023 ± 555 BLOQ ± NA
    4 hr  297 ± 107 BLOQ ± NA
    92 30 1 hr 11383 ± 2021   72.4 ± 11.1
    4 hr 5193 ± 277   89.2 ± 27.7
    89 30 1 hr 7190 ± 488   92.6 ± 20.4
    4 hr 4427 ± 227   129 ± 33.2
    BLOQ = below level of quantitation;
    NA = Not applicable
    • Biological Example 4: Five-Day Study in DIO Mice
  • The test compound was formulated in 10% PEG400 and 10% solutol. DIO mice (n=9) received vehicle or test compound daily for four days at 4 PM. Body weight and food weight were monitored daily at this time. On day 5, fed blood glucose, body weight, and food weight were measured at 9 AM and the mice were dosed at this time. Two hours later, mice were bled via the retro-orbital sinus under 70% CO2/30% O2 anesthesia. Plasma was used to determine insulin levels and compound concentration.
  • Three mice from each treatment group were anesthetized IP with 0.1 ml of a 4/1 mixture of Ketaset:AnaSed. (Prepared 10 ml Ketaset (100 mg/ml Ketamine) +2.5 ml AnaSed (20 mg/ml Xylazine) and then perfused with 60 ml heparinized saline through the left ventricle of the heart. The brains were removed and homogenized in PBS (4 ml/gm tissue). The samples were submitted for determination of plasma and brain compound levels.
  • Compound #335 was tested according to the procedure as described above, with results as listed in BIO-3A through BIO-3E, below.
  • TABLE BIO-3A
    Mean Daily Food Intake (in Grams (Std Err))
    Vehicle 30 mg/kg
    Day 1 2.7 (0.2) 0.4 (0.1)
    Day 2 2.6 (0.2) 0.5 (0.1)
    Day 3 2.5 (0.1) 0.5 (0.1)
    Day 4 2.4 (0.1) 1.1 (0.1)
  • TABLE BIO-3B
    Mean Body Weight (in Grams (Std Err))
    Vehicle 30 mg/kg
    Day 0 45.4 (0.7) 45.4 (0.7)
    Day 1 45.5 (0.7) 42.8 (0.8)
    Day 2 45.3 (0.7) 41.4 (0.7)
    Day 3 45.3 (0.8) 40.3 (0.6)
    Day 4 45.1 (0.7) 39.4 (0.6)
  • TABLE BIO-3C
    Plasma Insulin (in ng/mL (Std Err))
    Plasma Insulin
    Vehicle 6.10 (0.98)
    30 mg/kg 2.72 (0.61)
  • TABLE BIO-3D
    Fed Blood Glucose (in mg/dL (Std Err))
    Day 0 Day 4
    Vehicle 187 (9) 202 (9)
    30 mg/kg 187 (9) 160 (6)
  • TABLE BIO-3E
    Plasma and Brain Concentrations,
    2 Hours Post Dose, Day 5
    Plasma Brain
    ng/mL (Std Dev) ng/g (Std Dev)
    30 mg/kg 7662 (1587) 208 (46)
  • Compound #328 was tested according to the procedure as described above, with results as listed in BIO-4A through BIO-4E, below.
  • TABLE BIO-4A
    Mean Daily Food Intake (in Grams (Std Err))
    Vehicle 30 mg/kg
    Day 1 2.1 (0.2) 0.5 (0.1)
    Day 2 2.5 (0.2) 0.5 (0.1)
    Day 3 2.4 (0.2) 0.7 (0.1)
    Day 4 2.3 (0.1) 1.2 (0.1)
  • TABLE BIO-4B
    Mean Body Weight (in Grams (Std Err))
    Vehicle 30 mg/kg
    Day 0 43.4 (0.7) 43.6 (0.7)
    Day 1 43.4 (0.7) 41.2 (0.7)
    Day 2 43.0 (0.7) 39.6 (0.6)
    Day 3 42.9 (0.7) 38.6 (0.6)
    Day 4 42.7 (0.7) 38.2 (0.7)
  • TABLE BIO-4C
    Plasma Insulin (in ng/mL (Std Err))
    Plasma Insulin
    Vehicle 3.32 (0.58)
    30 mg/kg 1.31 (0.13)
  • TABLE BIO-4D
    Fed Blood Glucose (in mg/dL (Std Err))
    Day 0 Day 4
    Vehicle 183 (9) 182 (6)
    30 mg/kg 183 (9) 154 (7)
  • TABLE BIO-4E
    Plasma and Brain Concentrations,
    2 Hours Post Dose, Day 5
    Plasma Brain
    ng/mL (Std Dev) ng/g (Std Dev)
    30 mg/kg 8364 (959) 291 (84.3)
    • Biological Example 5: Chronic DIO Mouse
  • The test compound was formulated in 10% PEG400 and 10% solutol. DIO mice received vehicle, test compound (@ 1, 3, 10, and 30 mg/kg) daily for 26 days. At the end of the experiment, the mice were euthanized and blood and tissues were collected.
  • Body weight and food weight (food intake) were monitored daily for days 1-5 and twice weekly thereafter.
  • An insulin tolerance test (0.7 U/kg Humulin, ip) was performed on day 21 after a 4 hour food removal. Blood glucose was measured at 0, 15, 30, 60 and 120 minutes after insulin. After an overnight fast, an oral glucose tolerance test (2 g/kg glucose) was performed on day 23. Blood glucose was measured at 0, 30, 60 and 120 minutes after glucose challenge.
  • Blood glucose was measured from the tail vein with a Lifescan glucometer. Plasma insulin was measured with an ELISA or HTRF kit (Cisbio). Plasma parameters were measured with an Olympus clinical chemistry analyzer.
  • Compound #148 was tested according to the procedure as described above, with results as listed in Table BIO-5A through Table BIO-5F, below.
  • TABLE BIO-5A
    Mean Daily Food Intake (in Grams (Std Err))
    Vehicle 1 mg/kg 3 mg/kg 10 mg/kg 30 mg/kg
    Day 2 2.1 (0.2) 2.3 (0.1) 2.0 (0.2) 0.5 (0.1) 0.1 (0.1)
    Day 3 1.9 (0.2) 2.3 (0.1) 2.0 (0.1) 0.9 (0.1) 0.5 (0.1)
    Day 4 1.9 (0.3) 2.2 (0.1) 1.9 (0.2) 1.7 (0.2) 0.7 (0.1)
    Day 5 2.0 (0.3) 2.4 (0.1) 1.8 (0.2) 1.8 (0.2) 1.0 (0.2)
    Day 8 1.9 (0.2) 2.1 (0.1) 1.7 (0.1) 1.7 (0.1) 1.3 (0.2)
    Day 11 2.1 (0.1) 2.3 (0.1) 1.8 (0.1) 2.0 (0.1) 1.7 (0.2)
    Day 15 2.5 (0.1) 2.4 (0.1) 2.5 (0.1) 2.3 (0.1) 2.3 (0.1)
    Day 18 2.0 (0.2) 1.6 (0.3) 2.2 (0.1) 2.3 (0.1) 1.8 (0.2)
    Day 24 2.3 (0.1) 2.1 (0.2) 2.2 (0.1) 2.2 (0.2) 2.4 (0.1)
  • TABLE BIO-5B
    Mean Body Weight (in Grams (Std Err))
    Vehicle 1 mg/kg 3 mg/kg 10 mg/kg 30 mg/kg
    Day 0 41.42 (0.63) 42.03 (0.80) 42.28 (0.49) 42.09 (0.85) 42.46 (0.58)
    Day 1 41.59 (0.77) 42.63 (0.79) 42.94 (0.45) 42.69 (0.74) 43.13 (0.69)
    Day 2 41.18 (0.77) 42.56 (0.86) 42.12 (0.43) 40.46 (0.66) 39.64 (0.68)
    Day 3 40.87 (0.83) 42.46 (0.91) 41.85 (0.47) 39.85 (0.68) 38.53 (0.66)
    Day 4 40.63 (0.92) 42.26 (0.87) 41.42 (0.44) 39.44 (0.70) 37.46 (0.75)
    Day 5 40.29 (0.97) 42.31 (0.81) 41.3 (0.36) 38.78 (0.70) 36.67 (0.75)
    Day 8 39.48 (1.08) 41.62 (0.79) 39.78 (0.29)  37.4 (0.67) 34.95 (0.78)
    Day 11 39.74 (0.98) 41.91 (0.77)  39.1 (0.41) 36.99 (0.78) 33.79 (0.87)
    Day 15 40.72 (0.98) 42.67 (1.02) 40.43 (0.40) 37.33 (0.84) 34.19 (0.64)
    Day 18  39.4 (1.17) 40.54 (1.23) 39.84 (0.53) 37.02 (0.88) 32.47 (0.92)
    Day 24 40.94 (1.21) 41.11 (1.30) 40.48 (0.48) 36.42 (1.25) 32.86 (0.91)
  • TABLE BIO-5C
    Insulin Tolerance Test
    Mean Blood Glucose (in mg/dL (Std Err))
    Vehicle 1 mg/kg 3 mg/kg 10 mg/kg 30 mg/kg
     0 min 184.2 194.8 185.9 (6.57) 168.8 (7.13) 143
    (12.70) (14.64) (12.69)
     15 min 179.4 193.3 160.9 (7.24) 172.6 (9.66) 147.6
    (14.38) (13.87) (14.57)
     30 min 145 155 138.9 (9.10) 139.1 (7.03) 119.8
    (14.33) (15.40) (12.67)
     60 min 154.2 161.3  150.9 (11.66) 146.7 (5.80) 121.3
    (14.08) (18.83) (13.19)
    120 min 161.8 150 136.3 (9.51) 144.8 (5.86) 104.5
    (13.33) (13.98) (10.01)
    AUC 19128 19606.5  17812.5 (1054.85) 17930.25 (556.44)  14575.5
    (mg/dL * min) (1598.23) (1737.27) (1441.54)
  • TABLE BIO-5D
    Oral Glucose Tolerance Test
    Mean Blood Glucose (in mg/dL (Std Err))
    Vehicle 1 mg/kg 3 mg/kg 10 mg/kg 30 mg/kg
     0 min 151.80 139.90 154.89 141.60 125.30
    (9.25) (7.77) (4.54) (6.97) (9.30)
     30 min 172.1 179.2 153.11 190.1 184.5
    (9.53) (13.61) (11.51) (6.14) (9.25)
     60 min 164.3 168.5 183.89 176.2 179
    (7.75) (10.65) (7.37) (5.23) (4.31)
    120 min 158.6 143.5 150.44 132.8 126.9
    (11.17) (9.60) (3.48) (5.33) (10.95)
    AUC 19591.5 19362 19705 19740 19276.5
    (mg/ (698.06) (816.66) (543.73) (577.36) (638.04)
    dL * min)
  • TABLE BIO-5E
    Plasma Insulin (in ng/mL (Std Err))
    Plasma Insulin
    Vehicle 5.90 (0.64)
     1 mg/kg 5.92 (0.92)
     3 mg/kg 4.74 (0.83)
    10 mg/kg 2.20 (0.13)
    30 mg/kg 2.85 (0.27)
  • TABLE BIO 5F
    Plasma and Brain Concentrations,
    2 Hours Post Dose, Day 25
    Plasma Brain
    ng/mL (Std Dev) ng/g (Std Dev)
     1 mg/kg   288 (56.2) 18.2 (7.56)
     3 mg/kg 1346 (321) 29.9 (13.8)
    10 mg/kg 3431 (152)   42 (28.3)
    30 mg/kg  15237 (11647) 73.5 (93.3)
    • Biological Example 6: Open Field Locomotor Activity in Rats (CNS Activity)-Prophetic Example
  • Male SD rats are weighed and transferred to the Activity Chambers with access to water. After a 2-hr acclimation period, the rats are dosed with vehicle or test compound (@ 3 and 10 mg/kg). The Activity Chamber monitoring software program is initiated and automatically records rat activity in each chamber for a period of 4 hours. At the end of the 4 hour monitoring period, the software is stopped and the rats are removed from the activity chambers. The rats are anesthetized and blood samples are obtained via retro-orbital puncture to determine plasma concentration of compounds. The rats are immediately euthanized with CO2 and the brains are removed, washed with PBS, frozen on dry ice and stored at −80° C. for receptor occupancy (RO) analysis.
  • Satellite groups of 3 rats are dosed with test compound at 3 mg/kg and 10 mg/kg respectively. Four hours later, the rats are anesthetized. Blood is collected from these rats and then perfused with 400 ml heparinized saline through the left ventricle of the heart. The brains are removed and homogenized in PBS (4 ml/gm tissue). The samples are submitted for determination of plasma and brain compound levels.
    • Formulation Example 1 Solid, Oral Dosage Form—Prophetic Example
  • As a specific embodiment of an oral composition, 100 mg of the Compound #335 or Compound #328 is formulated with sufficient finely divided lactose to provide a total amount of 580 to 590 mg to fill a size O hard gel capsule.
  • While the foregoing specification teaches the principles of the present invention, with examples provided for the purpose of illustration, it will be understood that the practice of the invention encompasses all of the usual variations, adaptations and/or modifications as come within the scope of the following claims and their equivalents.

Claims (25)

We claim:
1. A compound of formula (I)
Figure US20190031618A1-20190131-C00484
wherein
R0 is selected from the group consisting of hydrogen, —OH, —C(O)OH, —C(O)O—(C1-4alkyl), —CH2—OH, —CH2—O—(C1-2alkyl) and —CH2—O—(C1-2alkyl)-CO2H;
Figure US20190031618A1-20190131-C00485
is selected from the group consisting of cylopropyl, cyclobutyl, cyclopentyl, cyclohexyl, phenyl, furyl, thienyl, thiazolyl, benzothiazolyl and benzo[d][1,3]dioxolyl;
wherein the phenyl, furyl, thienyl, thiazolyl or benzothiazolyl is optionally substituted with one or more substituents independently selected from the group consisting of halogen, hydroxy, C1-4alkyl, fluorinated C1-2alkyl, C1-4alkoxy, fluorinated C1-2alkoxy, cyano, —C(O)OH, —C(O)O—(C1-4alkyl), —C(O)NRARB and NRARB; wherein RA and RB are each independently selected from the group consisting of hydrogen, alkyl and hydroxy substituted C1-2alkyl; provided that each substituent is bound to a carbon atom;
Figure US20190031618A1-20190131-C00486
is selected from the group consisting of cylopropyl, cyclobutyl, cyclopentyl, cyclohexyl, phenyl, furyl, thienyl, thiazolyl, benzothiazolyl and benzo[d][1,3]dioxolyl;
wherein the phenyl, furyl, thienyl, thiazolyl or benzothiazolyl is optionally substituted with one or more substituents independently selected from the group consisting of halogen, hydroxy, C1-4alkyl, fluorinated C1-2alkyl, C1-4alkoxy, fluorinated C1-2alkoxy, cyano, —C(O)OH, —C(O)O—(C1-4alkyl), —C(O)NRCRD and NRCRD; wherein RC and RD are each independently selected from the group consisting of hydrogen, alkyl and hydroxy substituted C1-2alkyl; provided that each substituent is bound to a carbon atom;
R1 is selected from the group consisting of hydrogen, hydroxy and C1-4alkoxy;
R2 is selected from the group consisting of hydrogen, halogen, C1-4alkyl, fluorinated C1-2alkyl, —(C1-2alkyl)-OH, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-NRERF, —(C2-4alkenyl)-OH, —C(O)OH, —C(O)O—(C1-2alkyl), —NRERF, C3-6cycloalkyl, phenyl, furyl, thienyl, pyridyl, azetidin-3-yl, oxetan-3-yl, tetrahydrofuran-2-yl and tetrahydropyran-4-yl;
wherein the phenyl is optionally substituted with one to two halogen; wherein the azetidin-3-yl is optionally substituted with —C(O)O—(C1-4alkyl); and wherein RE and RF are each independently selected from the group consisting of hydrogen and C1-4alkyl;
provided that when R2 is selected from the group consisting of pyridyl, furyl and thienyl, then the R2 is bound to the benzimidazole core through a carbon atom;
R3 is selected from the group consisting of (a) through (k); wherein
(a) is
Figure US20190031618A1-20190131-C00487
wherein R4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)O—(C1-2alkyl), —C(O)NRGRH, —NH-(phenyl), and —NH—SO2-(phenyl); wherein the phenyl is optionally substituted with one or more substituents independently selected from the group consisting of halogen, hydroxy and carboxy; and wherein RG and RH are each independently selected from the group consisting of hydrogen and C1-4alkyl;
(b) is
Figure US20190031618A1-20190131-C00488
(c) is
Figure US20190031618A1-20190131-C00489
(d) is
Figure US20190031618A1-20190131-C00490
(e) is
Figure US20190031618A1-20190131-C00491
(f) is
Figure US20190031618A1-20190131-C00492
wherein a is an integer from 0 to 1;
wherein L1 is selected from the group consisting of —CH2—, —CH2—CH2, —CH2CH2CH2—, —CH(CH3)CH2— and —CH2—CH(CH3)—;
wherein R5 is selected from the group consisting of hydrogen, C1-2alkyl, fluorinated C1-2alkyl, C2-4alkenyl, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C2-3alkyl)-O-(phenyl), —C(O)—(C1-2alkyl)-OH, —C(O)—(C1-2alkyl)-C(O)OH, —C(O)—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—(C1-2alkyl)-C(O)—NH2, —C(O)OH, —C(O)O—(C1-4alkyl), —C(O)O—(C3-5cycloalkyl), —C(O)—NRJRK, —C(O)NH—(C3-5cycloalkyl), —C(O)NH-(phenyl), —C(O)NH—(C1-2alkyl)-(phenyl), —SO2—(C1-2alkyl), —SO2-(fluorinated C1-2alkyl), —SO2—(C1-2alkyl)-C(O)OH, —SO2—(C1-2alkyl)-C(O)O—(C1-2alkyl), —SO2—NRJRK, —SO2—(C1-2alkyl)-C(O)NRJRK, phenyl, —(C1-3alkyl)-phenyl, —C(O)-(phenyl), —C(O)O-(phenyl), —C(O)O—(C1-2alkyl)-(phenyl), —SO2-(phenyl), pyrimidin-2-yl, pyridyl, —(C1-2alkyl)-pyridyl, —C(O)-(pyridyl), —SO2-(pyridyl), furyl, —(C1-2alkyl)-furyl, —C(O)— furyl, —SO2-(furyl), thienyl, —(C1-2alkyl)-thienyl, —C(O)-thienyl, —SO2-(thienyl), —C(O)-(1,2,3-triazol-4-yl), —C(O)-(1,2,4,-triazol-3-yl) and —SO2—(C1-2alkyl)-(piperazin-1-yl);
wherein the phenyl, pyrimidin-2-yl, pyridyl, furyl, thienyl or pyridyl, is optionally substituted with one or more substituents independently selected from the group consisting of halogen, hydroxy, C1-4alkyl, fluorinated C1-2alkyl, —(C1-2alkyl)-OH, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C1-2alkyl)-C(O)—NRLRM, —O—(C1-4alkyl), —O-(fluorinated C1-2alkyl), —O—(C2-6alkenyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)O—(C1-2alkyl), —O—(C1-2alkyl)-C(O)NRLRM, —O—(C1-2alkyl)-C(O)—NRLRM, —C(O)OH, —C(O)O—(C1-4alkyl), —C(O)—NRLRM, —C(O)—NH—(C1-3alkyl)-OH, —C(O)—NH—(C1-2alkyl)-C(O)OH, —C(O)—NH—(C1-2alkyl)-C(O)O—(C1-2alkyl), —NRLRM and —SO2—NRLRM;
wherein RJ and RK are each independently selected from the group consisting of hydrogen and C1-4alkyl; and wherein RL and RM are each independently selected from the group consisting of hydrogen and C1-4alkyl;
(g) is
Figure US20190031618A1-20190131-C00493
wherein b is an integer from 0 to 1;
wherein L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—, —CH(CH3)—CH2—, —CH2—CH(CH3)—, —CH2CH2—O—, —CH2—CH(OH)—, —CH(CH3)—CH(OH) and —CH2CH2CH2—NH—SO2—;
wherein R6 is selected from the group consisting of hydrogen, halogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, C1-2alkoxy, fluorinated C1-2alkoxy, —C(O)OH, —C(O)O—(C1-2alkyl), —O—(C1-2alkyl)-O—(C1-2alkyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—NRNRP, —O—(C1-2alkyl)-C(O)—NRNRP, phenyl, furyl and thienyl; wherein the phenyl, furyl or thienyl is optionally substituted with a substituent selected from the group consisting of halogen, C1-4alkyl and carboxy; and wherein RN and RP are each independently selected from the group consisting of hydrogen and C1-4alkyl;
wherein R7 is selected from the group consisting of hydrogen, halogen, hydroxy, C1-4alkyl, fluorinated C1-2alkyl, C1-4alkoxy, fluorinated C1-2alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl);
(h) is
Figure US20190031618A1-20190131-C00494
wherein L3 is selected from the group consisting of —CH2—, —CH2CH2—, —CH2CH2CH2—, —CH(CH3)CH2—, —CH2CH(CH3)— and —CH2CH2—O—;
wherein R8 is selected from the group consisting of hydrogen, halogen, C1-4alkyl, C1-4alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl);
(i) is
Figure US20190031618A1-20190131-C00495
wherein c is an integer from 0 to 1;
and wherein L4 is selected from the group consisting of —CH2— and —CH2—CH2—;
(j) is
Figure US20190031618A1-20190131-C00496
and (k) is
Figure US20190031618A1-20190131-C00497
or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof.
2. A compound as in claim 1, wherein
R0 is selected from the group consisting of hydrogen, —OH, —C(O)OH, —C(O)O—(C1-2alkyl), —CH2—OH, —CH2—O—(C1-2alkyl) and —CH2—O—(C1-2alkyl)-CO2H;
Figure US20190031618A1-20190131-C00498
is selected from the group consisting of phenyl, thiazolyl, and benzo[d][1,3]dioxolyl;
wherein the phenyl or thiazolyl is optionally substituted with one to two substituents independently selected from the group consisting of halogen C1-4alkyl, fluorinated C1-2alkyl, C1-2alkoxy, fluorinated C1-2alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl);
Figure US20190031618A1-20190131-C00499
is selected from the group consisting of phenyl, thiazolyl and benzo[d][1,3]dioxolyl;
wherein the phenyl or thiazolyl is optionally substituted with one to two substituents independently selected from the group consisting of halogen C1-4alkyl, fluorinated C1-2alkyl, C1-2alkoxy, fluorinated C1-2alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl);
R1 is selected from the group consisting of hydrogen, hydroxy and C1-2alkoxy;
R2 is selected from the group consisting of hydrogen, halogen, C1-4alkyl, fluorinated C1-2alkyl, —(C1-2alkyl)-OH, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-NH2, —(C2-4alkenyl)-OH, —C(O)O—(C1-2alkyl), —NRERF, C3-6cycloalkyl, phenyl, furyl, thienyl, pyridyl, oxetan-3-yl, azetidin-3-yl, tetrahydrofuran-2-yl and tetrahydropyran-4-yl;
wherein the phenyl is optionally substituted with one to two halogen; wherein the azetidin-3-yl is optionally substituted with —C(O)O—(C1-4alkyl); and wherein RE and RF are each independently selected from the group consisting of hydrogen and C1-4alkyl;
provided that when R2 is selected from the group consisting of pyridyl, furyl and thienyl, then the R2 is bound to the benzimidazole core through a carbon atom;
R3 is selected from the group consisting of (a) through (k); wherein
(a) is
Figure US20190031618A1-20190131-C00500
wherein R4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)O—(C1-2alkyl), —C(O)NRGRH, —NH-(phenyl), and —NH—SO2-(phenyl);
wherein the phenyl is optionally substituted with hydroxy or carboxy; and
wherein RG and RH are each independently selected from the group consisting of hydrogen and methyl;
(b) is
Figure US20190031618A1-20190131-C00501
(c) is
Figure US20190031618A1-20190131-C00502
(d) is
Figure US20190031618A1-20190131-C00503
(e) is
Figure US20190031618A1-20190131-C00504
(f) is
Figure US20190031618A1-20190131-C00505
wherein a is an integer from 0 to 1;
wherein L1 is selected from the group consisting of —CH2—, —CH2—CH2, —CH(CH3)CH2— and —CH2—CH(CH3)—;
wherein R5 is selected from the group consisting of hydrogen, C1-2alkyl, fluorinated C1-2alkyl, C2-4alkenyl, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C2alkyl)-O-(phenyl), —C(O)—(C1-2alkyl)-OH, —C(O)—(C1-2alkyl)-C(O)OH, —C(O)—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—(C1-2alkyl)-C(O)—NH2, —C(O)O—(C1-4alkyl), —C(O)O—(C3-5cycloalkyl), —C(O)O-(phenyl), —C(O)O—CH2-(phenyl), —C(O)—NH2, —C(O)NH—(C1-2alkyl), —C(O)NH—(C3-5cycloalkyl), —C(O)NH-(phenyl), —C(O)NH—(C1-2alkyl)-(phenyl), —SO2—(C1-2alkyl), —SO2-(fluorinated C1-2alkyl), —SO2—(C1-2alkyl)-C(O)OH, —SO2—(C1-2alkyl)-C(O)O—(C1-2alkyl), —SO2—NH2, —SO2—NH—(C1-2alkyl), —SO2—(C1-2alkyl)-C(O)NH2, phenyl, —(C1-3alkyl)-phenyl, —C(O)-(phenyl), —C(O)O-(phenyl), —C(O)O—(C1-2alkyl)-(phenyl), —SO2-(phenyl), pyrimidin-2-yl, pyrid-2-yl, pyrid-3-yl, —(C1-2alkyl)-pyrid-2-yl, —(C1-2alkyl)-pyrid-3-yl, —(C1-2alkyl)-fur-2-yl, —(C1-2alkyl)-thien-2-yl, —C(O)-fur-2-yl, —C(O)-thien-2-yl, —C(O)-(pyrid-3-yl), —C(O)-(1,2,3-triazol-4-yl), —C(O)-(1,2,4,-triazol-3-yl), —SO2—(C1-2alkyl)-(piperazin-1-yl), —SO2-(fury-2-yl), —SO2-(thien-2-yl) and —SO2-(pyrid-3-yl);
wherein the phenyl, pyrimidin-2-yl, pyridyl, furyl, thienyl or pyridyl, is optionally substituted with one to three substituents independently selected from the group consisting of halogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, —(C1-2alkyl)-OH, —C(1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —O—(C1-2alkyl), —O-(fluorinated C1-2alkyl), —O—(C2-6alkenyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)NH2, —C(O)OH, —C(O)O—(C1-4alkyl), —C(O)—NH2, —C(O)—NH—(C1-2alkyl), —C(O)—NH—(C1-3alkyl)-OH, —C(O)—NH—(C1-2alkyl)-C(O)OH, —C(O)—NH—(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C1-2alkyl)-C(O)—NH2, —O—(C1-2alkyl)-C(O)—NH2, —O—(C1-2alkyl)-C(O)OH, —NH2, —NH(C1-2alkyl), —SO2—NH2 and —SO2—NH(C1-2alkyl);
(g) is
Figure US20190031618A1-20190131-C00506
wherein b is an integer from 0 to 1;
wherein L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—, —CH(CH3)—CH2—, —CH2—CH(CH3)—, —CH2CH2—O—, —CH2—CH(OH)—, —CH(CH3)—CH(OH) and —CH2CH2CH2—NH—SO2—;
wherein R6 is selected from the group consisting of hydrogen, halogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, C1-2alkoxy, fluorinated C1-2alkoxy, —C(O)OH, —C(O)O—(C1-2alkyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—NH2, —O—(C1-2alkyl)-C(O)—NH2, phenyl, furyl and thienyl; wherein the phenyl, furyl or thienyl is optionally substituted with carboxy;
and wherein R7 is selected from the group consisting of hydrogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, C1-2alkoxy, fluorinated C1-2alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl);
(h) is
Figure US20190031618A1-20190131-C00507
wherein L3 is selected from the group consisting of —CH2—, —CH2CH2— and —CH2CH2—O—;
and wherein R8 is selected from the group consisting of hydrogen, -halogen, C1-2alkyl, C1-2alkoxy, —C(O)OH and —C(O)O—(C1-4alkyl);
(i) is
Figure US20190031618A1-20190131-C00508
wherein c is an integer from 0 to 1;
and wherein L4 is selected from the group consisting of —CH2— and —CH2—CH2—;
(j) is
Figure US20190031618A1-20190131-C00509
and (k) is
Figure US20190031618A1-20190131-C00510
or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof.
3. A compound as in claim 2, wherein
R0 is selected from the group consisting of hydrogen, —OH, —C(O)OH, —C(O)O—(C1-2alkyl), —CH2—OH, —CH2—O—(C1-2alkyl) and —CH2—O—(C1-2alkyl)-CO2H;
Figure US20190031618A1-20190131-C00511
is phenyl; wherein the phenyl is optionally substituted a substituent selected from the group consisting of halogen and C1-2alkoxy;
Figure US20190031618A1-20190131-C00512
is selected from the group consisting of phenyl, thiazol-2-yl and benzo[d][1,3]dioxol-5-yl; wherein the phenyl or thiazol-2-yl is optionally substituted with a substituent selected from the group consisting of halogen, C1-4alkyl, fluorinated C1-2alkyl, C1-2alkoxy and —C(O)OH;
R1 is selected from the group consisting of hydrogen, hydroxy and C1-2alkoxy;
R2 is selected from the group consisting of hydrogen, halogen, C1-4alkyl, fluorinated C1-2alkyl, —(C1-2alkyl)-OH, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-NH2, —(C2-4alkenyl)-OH, —C(O)O—(C1-2alkyl), —NRERF, C3-6cycloalkyl, phenyl, fur-2-yl, fur-3-yl, thien-3-yl, pyrid-2-yl, pyrid-3-yl, pyrid-4-yl, oxetan-3-yl, azetidin-3-yl, tetrahydrofuran-2-yl and tetrahydro-pyran-4-yl;
wherein the phenyl is optionally substituted with one to two halogen; wherein the azetidin-3-yl is optionally substituted with —C(O)O—(C1-4alkyl); and wherein RE and RF are each independently selected from the group consisting of hydrogen, methyl and ethyl;
R3 is selected from the group consisting of (a) through (k); wherein
(a) is
Figure US20190031618A1-20190131-C00513
wherein R4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)NRGRH, —NH-(phenyl) and —NH—SO2-(phenyl); wherein the phenyl is optionally substituted with hydroxy or carboxy; wherein RG and RH are each independently selected from the group consisting of hydrogen and methyl;
(b) is
Figure US20190031618A1-20190131-C00514
(c) is
Figure US20190031618A1-20190131-C00515
(d) is
Figure US20190031618A1-20190131-C00516
(e) is
Figure US20190031618A1-20190131-C00517
(f) is
Figure US20190031618A1-20190131-C00518
wherein a is an integer from 0 to 1; and wherein L1 is selected from the group consisting of —CH2— and —CH2—CH(CH3)—;
wherein R5 is selected from the group consisting of hydrogen, C2-4alkenyl, —(C1-2alkyl)-C(O)OH, —(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C2alkyl)-O-(phenyl), —C(O)—(C1-2alkyl)-OH, —C(O)—(C1-2alkyl)-C(O)OH, —C(O)—(C1-2alkyl)-C(O)—NH2, —C(O)O—(C1-4alkyl), —C(O)O-(hydroxy substituted C1-4alkyl), —C(O)O—(C3-5cycloalkyl), —C(O)NH—(C1-2alkyl), —C(O)NH—(C3-5cycloalkyl), —C(O)NH-(phenyl), —C(O)NH—(C1-2alkyl)-(phenyl), —SO2—(C1-2alkyl), —SO2-(fluorinated C1-2alkyl), —SO2—(C1-2alkyl)-C(O)OH, —SO2—NH2, —SO2—NH—(C1-2alkyl), —SO2—(C1-2alkyl)-C(O)NH2, phenyl, —(C1-3alkyl)-phenyl, —C(O)-(phenyl), —C(O)O-(phenyl), —C(O)O—(C1-2alkyl)-(phenyl), —SO2-(phenyl), pyrimidin-2-yl, —(C1-2alkyl)-pyrid-2-yl, —(C1-2alkyl)-pyrid-3-yl, —(C1-2alkyl)-fur-2-yl, —(C1-2alkyl)-thien-2-yl, —C(O)-(pyrid-3-yl), —C(O)-(1,2,3-triazol-4-yl), —C(O)-(1,2,4,-triazol-3-yl), —SO2—(C1-2alkyl)-(piperazin-1-yl), —SO2-(fury-2-yl), —SO2-(thien-2-yl) and —SO2-(pyrid-3-yl);
wherein the phenyl is optionally substituted with one to three substituents independently selected from the group consisting of halogen, hydroxy, C1-2alkyl, fluorinated C1-2alkyl, —O—(C1-2alkyl), —O-(fluorinated C1-2alkyl), —O—(C2-6alkenyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)NH2, —C(O)OH, —C(O)O—(C1-2alkyl), —C(1-2alkyl)-C(O)OH, —C(O)—NH2, —C(O)—NH—(C1-2alkyl), —C(O)—NH—(C1-3alkyl)-OH, —C(O)—NH—(C1-2alkyl)-C(O)OH, —C(O)—NH—(C1-2alkyl)-C(O)O—(C1-2alkyl), —(C1-2alkyl)-C(O)—NH2, —O—(C1-2alkyl)-C(O)—NH2, —O—(C1-2alkyl)-C(O)OH, —NH2 and —SO2—NH2;
and wherein the pyrimidin-2-yl, pyrid-2-yl, pyrid-3-yl, fur-2-yl or thien-2-yl is optionally substituted with one to two substituents independently selected from the group consisting of C1-2alkyl, —(C1-2alkyl)-OH, —C(O)OH, —C(O)O—(C1-2alkyl), —C(O)—NH2, —C(O)NH—(C1-2alkyl)-OH, —C(O)NH—(C1-2alkyl)-C(O)OH and —C(O)NH—(C1-2alkyl)-C(O)O—(C1-2alkyl);
(g) is
Figure US20190031618A1-20190131-C00519
wherein b is an integer from 0 to 1; and wherein L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—, —CH(CH3)—CH2—, —CH2—CH(CH3)—, —CH2CH2—O—, —CH2—CH(OH)—, —CH(CH3)—CH(OH) and —CH2CH2CH2—NH—SO2—;
wherein R6 is selected from the group consisting of hydrogen, halogen, hydroxy, C1-2alkoxy, fluorinated C1-2alkyl, —C(O)OH, —C(O)O—(C1-2alkyl), —O—(C1-2alkyl)-C(O)OH, —O—(C1-2alkyl)-C(O)O—(C1-2alkyl), —C(O)—NH2, —O—(C1-2alkyl)-C(O)—NH2, phenyl and thienyl; wherein the phenyl or thienyl is optionally substituted with carboxy; and wherein R7 is selected from the group consisting of hydrogen and fluorinated C1-2alkyl;
(h) is
Figure US20190031618A1-20190131-C00520
wherein L3 is selected from the group consisting of —CH2— and —CH2CH2—O—; and wherein R8 is selected from the group consisting of hydrogen, —C(O)OH and —C(O)O—(C1-2alkyl);
(i) is
Figure US20190031618A1-20190131-C00521
wherein c is an integer from 0 to 1; wherein L4 is —CH2—;
(j) is
Figure US20190031618A1-20190131-C00522
and (k) is
Figure US20190031618A1-20190131-C00523
or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof.
4. A compound as in claim 3, wherein
R0 is selected from the group consisting of hydrogen, —OH, —C(O)OH, —C(O)OCH3, —CH2—OH, —CH2—OCH3 and —CH2—OCH2—CO2H;
Figure US20190031618A1-20190131-C00524
is selected from the group consisting of phenyl, 2-chlorophenyl, 4-chlorophenyl and 4-methoxyphenyl;
Figure US20190031618A1-20190131-C00525
is selected from the group consisting of phenyl, 4-chlorophenyl, 4-fluorophenyl, 4-methylphenyl, 4-trifluoromethyl-phenyl, 4-carboxyphenyl, 4-methoxyphenyl, thiazol-2-yl, 4-ethyl-thiazol-2-yl, 5-ethyl-thiazol-2-yl, 4-t-butyl-thiazol-2-yl, 4-trifluoromethyl-thiazol-2-yl and benzo[d][1,3]dioxol-5-yl,
R1 is selected from the group consisting of hydrogen, hydroxy and methoxy;
R2 is selected from the group consisting of hydrogen, chloro, methyl, ethyl, n-propyl, isopropyl, isobutyl, t-butyl, —CHF2, —CF3, —CH2—CF3, —CH2OH, —CH2CH2—C(O)OH, —CH2CH2—NH2, —C(═CH2)—CH2OH, —C(O)OCH3, —C(O)OCH2CH3, —NH2, —N(CH3)2, cyclopropyl, cyclobutyl, cyclopentyl, oxetan-3-yl, azetidin-3-yl, 1-(t-butoxycarbonyl)-azetidin-3-yl, tetrahydrofuran-2-yl, tetrahydro-pyran-4-yl, 4-chlorophenyl, 2,4-dichlorophenyl, pyrid-2-yl, pyrid-3-yl, pyrid-4-yl, fur-2-yl, fur-3-yl and thien-3-yl;
R3 is selected from the group consisting of (a) through (k); wherein
(a) is
Figure US20190031618A1-20190131-C00526
wherein R4 is selected from the group consisting of hydrogen, —C(O)OH, —C(O)NH2, —NH—SO2-(3-carboxyphenyl), —NH-(3-hydroxyphenyl), —NH-(3-carboxyphenyl), —NH-(4-carboxyphenyl) and —NH—SO2-(4-carboxyphenyl); and wherein the cyclohexyl is bound to the benzimidazole core in a cis-, trans- or racemic stereo-orientation;
(b) is
Figure US20190031618A1-20190131-C00527
wherein a 0; and wherein R5 is selected from the group consisting of 3-carboxybenzyl-, 4-carboxyphenyl-sulfonyl- and 5-carboxyfur-2-yl-sulfonyl-;
(c) is
Figure US20190031618A1-20190131-C00528
wherein a is 0; and wherein R5 is selected from the group consisting of 3-carboxybenzyl-, 4-carboxyphenyl-sulfonyl- and 5-carboxy-fur-2-yl-sulfonyl-;
(d) is
Figure US20190031618A1-20190131-C00529
wherein a is an integer from 0 to 1;
wherein L1 is selected from the group consisting of —CH2— and —CH2—CH(R*—CH3)—;
wherein R5 is selected from the group consisting of hydrogen, propyn-3-yl, carboxy-methyl-, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, 2-carboxy-ethyl-carbonyl-, aminocarbonyl-methyl-carbonyl-, 2-(aminocarbonyl)-ethyl-carbonyl-, ethoxycarbonyl-, t-butoxycarbonyl-, cyclopentyloxy-carbonyl-, 2,3,4-trihydroxy-n-butyloxy-carbonyl-, 3-carboxyphenyl, 4-carboxyphenyl, 3-(carboxy-methyl)-phenyl, 4-(carboxy-methyl)-phenyl, 3-(methoxycarbonyl)-phenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 4-(aminocarbonyl-methoxy)-phenyl, 3-(carboxy-methoxy)-phenyl, 4-(carboxy-methoxy)-phenyl, 3-hydroxy-benzyl, 3-(hex-2-en-1-yloxy)-benzyl, 2-trifluoromethyl-benzyl, 3-carboxy-benzyl, 4-carboxy-benzyl, 3-(methoxycarbonyl)-benzyl, 3-(aminocarbonyl)-benzyl, 4-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 2-hydroxy-3-carboxy-benzyl, 2-hydroxy-5-carboxy-benzyl, 2-fluoro-3-carboxy-benzyl, 2-fluoro-5-carboxy-benzyl, 2-chloro-3-carboxy-benzyl, 2-chloro-5-carboxy-benzyl, 2-trifluoromethyl-5-carboxy-benzyl, 3-fluoro-5-carboxy-benzyl, 3-carboxy-4-fluoro-benzyl, 3-carboxy-4-hydroxy-benzyl, 3-trifluoromethyl-5-carboxy-benzyl, 1-(3-hydroxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-ethyl-, 1R*-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 4-carboxy-pyrimidin-2-yl, 5-carboxy-pyrimidin-2-yl, 5-methoxycarbonyl-pyrimidin-2-yl, 2-carboxy-pyrid-4-yl-methyl-, 4-carboxy-pyrid-2-yl-methyl-, 5-carboxy-pyrid-2-yl-methyl-, 6-carboxy-pyrid-2-yl-methyl-, 5-carboxy-pyrid-3-yl-methyl-, 6-carboxy-pyrid-3-yl-methyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 6-aminocarbonyl-pyrid-2-yl-methyl-, 5-aminocarbonyl-pyrid-3-yl-methyl-, 6-aminocarbonyl-pyrid-3-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl-, 5-carboxy-fur-2-yl-methyl-, 5-aminocarbonyl-fur-2-yl-methyl-, 1-(5-carboxy-fur-2-yl)-ethyl-, 4-carboxy-thien-2-yl-methyl-, 5-carboxy-thien-2-yl-methyl-, 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, phenoxy-carbonyl-, benzyloxy-carbonyl-, ethylamino-carbonyl-, cyclopentyl-amino-carbonyl-, phenyl-aminocarbonyl-, benzyl-amino-carbonyl-, 4-carboxy-phenyl-carbonyl-, 4-aminoarbonyl-phenyl-carbonyl-, 3-aminosulfonyl-phenyl-carbonyl-, 4-aminosulfonyl-phenyl-carbonyl-, 6-carboxy-pyrid-3-yl-carbonyl-, 6-aminocarbonyl-pyrid-3-yl-carbonyl-, 1,2,3-triazol-4-yl-carbonyl-, 1,2,4-triazol-3-yl-carbonyl-, methyl-sulfonyl-, trifluoromethyl-sulfonyl-, carboxymethyl-sulfonyl-, carboxyethyl-sulfonyl-, amino-sulfonyl-, amino-ethyl-sulfonyl-, aminocarbonyl-methyl-sulfonyl-, phenyl-sulfonyl-, 4-fluorophenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 2-hydroxyphenyl-sulfonyl-, 3-hydroxyphenyl-sulfonyl-, 4-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-methoxy-phenyl-sulfonyl-, 4-methoxy-phenyl-sulfonyl-, 2-trifluoromethyl-phenyl-sulfonyl-, 3-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethoxy-phenyl-sulfonyl-, 2-carboxyphenyl-sulfonyl-, 3-carboxyphenyl-sulfonyl-, 4-carboxyphenyl-sulfonyl-, 4-carboxy-methoxy-phenyl-sulfonyl-, 3-aminophenyl-sulfonyl-, 4-aminophenyl-sulfonyl-, 2-aminocarbonyl-phenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-(methylamino-carbonyl)-phenyl-sulfonyl-, 3-(carboxy-ethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(3-hydroxy-n-propyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(2-(methoxycarbonyl)-ethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(2-hydroxyethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-fluoro-4-hydroxy-phenyl-sulfonyl-, 3-fluoro-4-methoxy-phenyl-sulfonyl-, 3-fluoro-4-aminocabonyl-phenyl-sulfonyl-, 3-fluoro-4-carboxy-phenyl-sulfonyl-, 3-chloro-4-aminocarbonyl-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl-, 3-methyl-4-aminocarbonyl-phenyl-sulfonyl-, 3-methyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-aminocarbonyl-phenyl-sulfonyl, 3-methoxy-4-carboxy-phenyl-sulfonyl, 3-methoxy-4-aminocarbonyl-phenyl-sulfonyl-, 3-carboxy-4-chloro-phenyl-sulfonyl-, 3-carboxy-4-fluoro-phenyl-sulfonyl-, 3-carboxy-4-methyl-phenyl-sulfonyl-, 3-carboxy-4-methoxy-phenyl-sulfonyl-, 3-aminocarbonyl-4-fluoro-phenyl-sulfonyl-, 3-aminocarbonyl-4-methyl-phenyl-sulfonyl-, 3-aminocarbonyl-4-methoxy-phenyl-sulfonyl-, 3,5-dichloro-4-hydroxy-phenyl-sulfonyl-, piperazin-1-yl-ethyl-sulfonyl-, 5-(hydroxymethyl)-fur-2-yl-sulfonyl-, 5-carboxy-fur-2-yl-sulfonyl-, 5-(aminocarbonyl)-fur-2-yl-sulfonyl-, 4-carboxy-thien-2-yl-sulfonyl-, 4-(aminocarbonyl)-thien-2-yl-sulfonyl-, 3-methyl-5-carboxy-thien-2-yl-sulfonyl-, 3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl-, 6-carboxy-pyrid-3-yl-sulfonyl-, 6-aminocarbonyl-pyrid-3-yl-sulfonyl-, 6-(2-hydroxyethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-, 6-(carboxyethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl- and 6-(methoxycarbonyl-ethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-;
(e) is
Figure US20190031618A1-20190131-C00530
wherein a is 0; and wherein R5 is selected from the group consisting of ethoxycarbonyl- and trifluoromethyl-sulfonyl-;
(f) is
Figure US20190031618A1-20190131-C00531
wherein R5 is trifluoromethyl-sulfonyl-;
(g) is
Figure US20190031618A1-20190131-C00532
wherein b is an integer from 0 to 1;
wherein L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—, —CH(CH3)—CH2—, —CH2—CH(CH3)—, —CH2—CH(R*—CH3)—, —CH2—CH(S*—CH3)—, —CH2CH2—O—, —CH2—CH(OH)—, —CH2—CH(R*—OH), —CH(CH3)—CH(OH) and —CH2CH2CH2—NH—SO2—;
wherein R8 is selected from the group consisting of hydrogen, 3-bromo, 3-chloro, 4-chloro, 3-hydroxy, 4-hydroxy, 3-methoxy, 4-methoxy, 4-trifluoromethyl, 3-carboxy, 4-carboxy, 3-carboxy-methoxy-, 4-carboxy-methoxy-, 3-methoxycarbonyl-,4-methoxycarbonyl-, 3-ethoxy-carbonyl-methoxy-, 4-ethoxy-carbonyl-methoxy-, 4-aminocarbonyl-, 3-amino-carbonyl-methoxy-, 4-amino-carbonyl-methoxy-, 3-(3-carboxyphenyl), 3-(4-carboxy-phenyl), 4-(3-carboxyphenyl), 4-(4-carboxyphenyl) and 3-(5-carboxy-thien-2-yl);
and wherein R7 is selected from the group consisting of hydrogen and 5-trifluoromethyl;
(h) is
Figure US20190031618A1-20190131-C00533
wherein L3 is selected from the group consisting of —CH2— and —CH2CH2—O—; and wherein R8 is selected from the group consisting of hydrogen, carboxy and methoxycarbonyl-;
(i) is
Figure US20190031618A1-20190131-C00534
wherein c is an integer from 0 to 1; and wherein L4 is —CH2—;
(j) is
Figure US20190031618A1-20190131-C00535
and (k) is
Figure US20190031618A1-20190131-C00536
or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof.
5. A compound as in claim 4, wherein
R0 is selected from the group consisting of hydrogen, —OH, —CO2H, —C(O)OCH3 and —CH2OCH3;
Figure US20190031618A1-20190131-C00537
is selected from the group consisting of 4-chlorophenyl, 4-fluorophenyl, 4-methylphenyl and 4-methoxyphenyl;
Figure US20190031618A1-20190131-C00538
is selected from the group consisting of phenyl, 4-chlorophenyl, 4-fluorphenyl, 4-methylphenyl, 4-trifluoromethyl-phenyl, 4-methoxyphenyl, 4-carboxyphenyl, thiazol-2-yl and benzo[d][1,3]dioxol-5-yl;
R1 is selected from the group consisting of hydrogen, —OH and —OCH3;
R2 is selected from the group consisting of hydrogen, methyl, ethyl, cyclopropyl, cyclobutyl, amino-ethyl-, —C═(CH2)—CH2OH, oxetan-3-yl, tetrahydrofur-2-yl and pyrid-3-yl;
R3 is selected from the group consisting of (a), (b), (d), (f), (g), (h) and (i); wherein
(a) is
Figure US20190031618A1-20190131-C00539
wherein the cyclohexyl group is bound in a cis-, trans- or racemic orientation; and wherein R4 is selected from the group consisting of hydrogen, aminocarbonyl-, 3-hydroxyphenyl-amino-, 3-carboxyphenyl-amino-, 4-carboxyphenyl-amino-, 3-carboxyphenyl-sulfonyl-amino- and 4-carboxyphenyl-sulfonyl-amino-;
(b) is
Figure US20190031618A1-20190131-C00540
wherein a 0; and wherein R5 is selected from the group consisting of 3-carboxybenzyl- and 4-carboxyphenyl-sulfonyl-;
(d) is
Figure US20190031618A1-20190131-C00541
wherein a is an integer from 0 to 1; wherein L1 is —CH2—; and wherein R5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, aminocarbonyl-methyl-carbonyl-, aminocarbonyl-ethyl-carbonyl-, ethoxycarbonyl-, t-butoxycarbonyl-, cyclopentyloxy-carbonyl-, 2,3,4-trihydroxy-n-butyloxy-carbonyl-, 3-carboxyphenyl, 4-carboxyphenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 4-(aminocarbonyl-methoxy)-phenyl, 3-hydroxy-benzyl, 2-trifluoromethyl-benzyl, 3-carboxy-benzyl, 4-carboxy-benzyl, 3-(aminocarbonyl)-benzyl, 4-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 2-hydroxy-3-carboxy-benzyl, 2-fluoro-5-carboxy-benzyl, 3-fluoro-5-carboxy-benzyl, 2-chloro-3-carboxy-benzyl, 2-chloro-5-carboxy-benzyl, 2-trifluoromethyl-5-carboxy-benzyl, 3-carboxy-4-fluoro-benzyl, 3-carboxy-4-hydroxy-benzyl, 1-(3-hydroxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-ethyl-, 1R*-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 5-carboxy-pyrimidin-2-yl, 5-methoxycarbonyl-pyrimidin-2-yl, 2-carboxy-pyrid-4-yl-methyl-, 4-carboxy-pyrid-2-yl-methyl-, 5-carboxy-pyrid-2-yl-methyl-, 6-carboxy-pyrid-2-yl-methyl-, 5-carboxy-pyrid-3-yl-methyl-, 6-carboxy-pyrid-3-yl-methyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 6-aminocarbonyl-pyrid-2-yl-methyl-, 5-aminocarbonyl-pyrid-3-yl-methyl-, 6-aminocarbonyl-pyrid-3-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl-, 5-carboxy-fur-2-yl-methyl-, 1-(5-carboxy-fur-2-yl)-ethyl-, 5-aminocarbonyl-fur-2-yl-methyl-, 4-carboxy-thien-2-yl-methyl-, 5-carboxy-thien-2-yl-methyl-, 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, phenoxy-carbonyl-, benzyloxy-carbonyl-, ethylamino-carbonyl-, cyclopentyl-amino-carbonyl-, phenyl-aminocarbonyl-, benzyl-amino-carbonyl-, 4-aminocarbonyl-phenyl-carbonyl-, 3-aminosulfonyl-phenyl-carbonyl-, 4-aminosulfonyl-phenyl-carbonyl-, 6-aminocarbonyl-pyrid-3-yl-carbonyl-, 1,2,4-triazol-3-yl-carbonyl-, methylsulfonyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-fluorophenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 2-hydroxyphenyl-sulfonyl-, 3-hydroxyphenyl-sulfonyl-, 4-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-methoxy-phenyl-sulfonyl-, 4-methoxy-phenyl-sulfonyl-, 2-trifluoromethyl-phenyl-sulfonyl-, 3-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethoxy-phenyl-sulfonyl-,3-carboxyphenyl-sulfonyl-, 4-carboxyphenyl-sulfonyl-, 3-aminophenyl-sulfonyl-, 4-aminophenyl-sulfonyl-, 2-aminocarbonyl-phenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-(methylamino-carbonyl)-phenyl-sulfonyl-, 3-(3-hydroxy-n-propyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(2-(methoxycarbonyl)-ethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-(2-hydroxyethyl-amino-carbonyl)-phenyl-sulfonyl-, 3-fluoro-4-methoxy-phenyl-sulfonyl-, 3-fluoro-4-aminocabonyl-phenyl-sulfonyl-, 3-fluoro-4-carboxy-phenyl-sulfonyl-, 3-chloro-4-aminocarbonyl-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl, 3-methyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-aminocarbonyl-phenyl-sulfonyl, 3-methoxy-4-aminocarbonyl-phenyl-sulfonyl-, 3-methoxy-4-carboxy-phenyl-sulfonyl-, 3-carboxy-4-chloro-phenyl-sulfonyl-, 3-carboxy-4-fluoro-phenyl-sulfonyl-, 3-aminocarbonyl-4-fluoro-phenyl-sulfonyl-, 3-aminocarbonyl-4-methyl-phenyl-sulfonyl-, 3-aminocarbonyl-4-methoxy-phenyl-sulfonyl-, 3,5-dichloro-4-hydroxy-phenyl-sulfonyl-, 5-(hydroxymethyl)-fur-2-yl-sulfonyl-, 5-carboxy-fur-2-yl-sulfonyl-, 5-(aminocarbonyl)-fur-2-yl-sulfonyl-, 4-carboxy-thien-2-yl-sulfonyl-, 4-(aminocarbonyl)-thien-2-yl-sulfonyl-, 3-methyl-5-carboxy-thien-2-yl-sulfonyl-, 3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl-, 6-carboxy-pyrid-3-yl-sulfonyl-, 6-aminocarbonyl-pyrid-3-yl-sulfonyl-, 6-(2-hydroxyethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-, 6-(carboxyethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl- and 6-(methoxycarbonyl-ethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-;
(f) is
Figure US20190031618A1-20190131-C00542
wherein R5 is trifluoromethyl-sulfonyl-;
(g) is
Figure US20190031618A1-20190131-C00543
wherein b is an integer from 0 to 1; L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH(CH3)—CH2—, —CH2—CH(R*—CH3)—, —CH2—CH(S*—CH3)—, —CH2CH2—O—, —CH2—CH(OH)— and —CH2CH2CH2—NH—SO2—; and wherein R6 is selected from the group consisting of hydrogen, 3-chloro-, 4-chloro-, 3-bromo-, 4-bromo-, 3-hydroxy, 4-hydroxy-, 4-trifluoromethyl, 3-methoxy-, 4-methoxy-, 4-methoxycarbonyl-, 3-(ethoxy-carbonyl-methoxy)-, 4-(ethoxy-carbonyl-methoxy)-, 3-(aminocarbonyl-methoxy)-, 4-(aminocarbonyl-methoxy)-, 3-(3-carboxyphenyl), 3-(4-carboxyphenyl) and 3-(5-carboxy-thein-2-yl); and R7 is selected from the group consisting of hydrogen and 5-trifluoromethyl;
(h) is
Figure US20190031618A1-20190131-C00544
wherein L3 is —CH2CH2— and wherein R8 is 5-methoxycarbonyl-;
and (i) is
Figure US20190031618A1-20190131-C00545
wherein c is an integer from 0 to 1; and wherein L4 is —CH2—;
or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof.
6. A compound as in claim 4, wherein
R0 is selected from the group consisting of hydrogen, —OH, —CO2H and —C(O)OCH3;
Figure US20190031618A1-20190131-C00546
is selected from the group consisting of 4-chlorophenyl, 4-fluorophenyl and 4-methylphenyl;
Figure US20190031618A1-20190131-C00547
is selected from the group consisting of phenyl, 4-chlorophenyl, 4-fluorphenyl, 4-methylphenyl, 4-trifluoromethyl-phenyl, thiazol-2-yl and benzo[d][1,3]dioxol-5-yl;
R1 is selected from the group consisting of hydrogen, —OH and —OCH3;
R2 is selected from the group consisting of hydrogen, methyl, ethyl, cyclopropyl, cyclobutyl, oxetan-3-yl and tetrahydrofur-2-yl;
R3 is selected from the group consisting of (a), (b), (d), (f), (g) and (i); wherein
(a) is
Figure US20190031618A1-20190131-C00548
wherein the cyclohexyl group is bound in trans-orientation; and wherein R4 is 3-hydroxyphenyl-amino-;
(b) is
Figure US20190031618A1-20190131-C00549
wherein a 0; and wherein R5 is 3-carboxybenzyl-;
(d) is
Figure US20190031618A1-20190131-C00550
wherein a is an integer from 0 to 1; wherein L1 is —CH2—; and wherein R5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-carboxyphenyl-oxy-ethyl-, 2-hydroxyethyl-carbonyl-, hydroxymethyl-carbonyl-, ethoxycarbonyl-cyclopentyloxy-carbonyl-, 4-carboxyphenyl, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 4-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 4-(aminocarbonyl-methoxy)-phenyl, 3-hydroxy-benzyl, 3-carboxy-benzyl, 4-carboxy-benzyl, 3-(aminocarbonyl)-benzyl, 4-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 2-fluoro-5-carboxy-benzyl, 3-fluoro-5-carboxy-benzyl, 2-chloro-5-carboxy-benzyl, 3-carboxy-4-fluoro-benzyl, 3-carboxy-4-hydroxy-benzyl, 1-(3-hydroxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-ethyl-, 1R*-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 5-carboxy-pyrimidin-2-yl, 5-carboxy-pyrid-3-yl-methyl-, 6-carboxy-pyrid-3-yl-methyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 6-aminocarbonyl-pyrid-2-yl-methyl-, 5-aminocarbonyl-pyrid-3-yl-methyl-, 6-aminocarbonyl-pyrid-3-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl-, 5-carboxy-fur-2-yl-methyl-, 5-aminocarbonyl-fur-2-yl-methyl-, 1-(5-carboxy-fur-2-yl)-ethyl-, 4-carboxy-thien-2-yl-methyl-, 5-carboxy-thien-2-yl-methyl-, 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, phenoxy-carbonyl-, benzyloxy-carbonyl-, ethylamino-carbonyl-, 3-aminosulfonyl-phenyl-carbonyl-, 6-aminocarbonyl-pyrid-3-yl-carbonyl-, methylsulfonyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-fluorophenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 2-hydroxyphenyl-sulfonyl-, 3-hydroxyphenyl-sulfonyl-, 4-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-methoxy-phenyl-sulfonyl-, 4-methoxy-phenyl-sulfonyl-, 2-trifluoromethyl-phenyl-sulfonyl-, 3-trifluoromethyl-phenyl-sulfonyl-, 4-trifluoromethyl-phenyl-sulfonyl-, 3-carboxyphenyl-sulfonyl-, 4-carboxyphenyl-sulfonyl-, 3-aminophenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-(methylamino-carbonyl)-phenyl-sulfonyl-, 3-(3-hydroxy-n-propyl-amino-carbonyl)-phenyl-sulfonyl-, 3-fluoro-4-aminocabonyl-phenyl-sulfonyl-, 3-fluoro-4-carboxy-phenyl-sulfonyl-, 3-chloro-4-aminocarbonyl-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl, 3-methyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl-, 3-methoxy-4-aminocarbonyl-phenyl-sulfonyl-, 3-methoxy-4-carboxy-phenyl-sulfonyl-, 3-carboxy-4-chloro-phenyl-sulfonyl-, 3-carboxy-4-fluoro-phenyl-sulfonyl-, 3-aminocarbonyl-4-fluoro-phenyl-sulfonyl-, 3,5-dichloro-4-hydroxy-phenyl-sulfonyl-, 5-(hydroxymethyl)-fur-2-yl-sulfonyl-, 5-carboxy-fur-2-yl-sulfonyl-, 5-(aminocarbonyl)-fur-2-yl-sulfonyl-, 4-carboxy-thien-2-yl-sulfonyl-, 4-(aminocarbonyl)-thien-2-yl-sulfonyl-, 3-methyl-5-carboxy-thien-2-yl-sulfonyl-, 3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl-, 6-carboxy-pyrid-3-yl-sulfonyl-, 6-aminocarbonyl-pyrid-3-yl-sulfonyl- and 6-(methoxycarbonyl-ethyl-amino-carbonyl)-pyrid-3-yl-sulfonyl-;
(f) is
Figure US20190031618A1-20190131-C00551
wherein R5 is trifluoromethyl-sulfonyl-;
(g) is
Figure US20190031618A1-20190131-C00552
wherein b is an integer from 0 to 1; L2 is selected from the group consisting of —CH2—, —CH2CH2—, —CH2—CH(R*—CH3)—, —CH2CH2—O—, —CH2—CH(OH)— and —CH2CH2CH2—NH—SO2—; and wherein R6 is selected from the group consisting of hydrogen, 3-chloro-, 3-bromo-, 4-bromo-, 3-hydroxy, 4-trifluoromethyl, 3-methoxy-, 4-methoxy-, 3-(ethoxy-carbonyl-methoxy)-, 4-(ethoxy-carbonyl-methoxy)-, and 3-(5-carboxy-thein-2-yl); and R7 is hydrogen;
and (i) is
Figure US20190031618A1-20190131-C00553
wherein c is 1; and wherein L4 is —CH2—;
or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof.
7. A compound as in claim 4, wherein
R0 is selected from the group consisting of hydrogen, —OH and —CO2H;
Figure US20190031618A1-20190131-C00554
is 4-chlorophenyl;
Figure US20190031618A1-20190131-C00555
is selected from the group consisting of 4-chlorophenyl, thiazol-2-yl and benzo[d][1,3]dioxol-5-yl;
R1 is selected from the group consisting of hydrogen and —OCH3;
R2 is selected from the group consisting of ethyl, cyclopropyl, cyclobutyl, oxetan-3-yl and tetrahydrofur-2-yl;
R3 is selected from the group consisting of (d), (f) and (g); wherein
(d) is
Figure US20190031618A1-20190131-C00556
wherein a is an integer from 0 to 1; wherein L1 is —CH2—; and wherein R5 is selected from the group consisting of propyn-3-yl, methoxy-carbonyl-methyl-, 3-(aminocarbonyl)-phenyl, 4-(aminocarbonyl)-phenyl, 3-(aminocarbonyl-methyl)-phenyl, 3-(aminocarbonyl-methoxy)-phenyl, 3-carboxy-benzyl, 3-(aminocarbonyl)-benzyl, 3-(2-hydroxyethyl-aminocarbonyl)-benzyl, 3-fluoro-5-carboxy-benzyl, 1-(3-carboxyphenyl)-ethyl-, 1R*-(3-carboxyphenyl)-ethyl-, 1-(3-carboxyphenyl)-n-propyl-, 5-carboxy-pyrimidin-2-yl, 5-aminocarbonyl-pyrid-2-yl-methyl-, 5-aminocarbonyl-pyrid-3-yl-methyl-, 6-aminocarbonyl-pyrid-3-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl-, 5-aminocarbonyl-fur-2-yl-methyl-, 5-carboxy-thien-2-yl-methyl-, 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, benzyloxy-carbonyl-, methylsulfonyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-fluorophenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 3-hydroxyphenyl-sulfonyl-, 4-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-trifluoromethyl-phenyl-sulfonyl-, 4-carboxyphenyl-sulfonyl-, 3-aminophenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl, 3-methyl-4-carboxy-phenyl-sulfonyl-, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl-, 3-methoxy-4-aminocarbonyl-phenyl-sulfonyl-, 3-methoxy-4-carboxy-phenyl-sulfonyl-, 5-(aminocarbonyl)-fur-2-yl-sulfonyl-, 4-carboxy-thien-2-yl-sulfonyl-, 4-(aminocarbonyl)-thien-2-yl-sulfonyl-, 3-methyl-5-carboxy-thien-2-yl-sulfonyl-, 3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl- and 6-aminocarbonyl-pyrid-3-yl-sulfonyl-;
(f) is
Figure US20190031618A1-20190131-C00557
wherein R5 is trifluoromethyl-sulfonyl-;
and (g) is
Figure US20190031618A1-20190131-C00558
wherein b is an integer from 0 to 1; L2 is —CH2CH2—; and wherein R6 is selected from the group consisting of 3-chloro-, 4-trifluoromethyl, 4-methoxy- and 4-(ethoxy-carbonyl-methoxy)-; and R7 is hydrogen;
or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof.
8. A compound as in claim 4, wherein
R0 is selected from the group consisting of hydrogen and —OH;
Figure US20190031618A1-20190131-C00559
is 4-chlorophenyl;
Figure US20190031618A1-20190131-C00560
is 4-chlorophenyl;
R1 is selected from the group consisting of hydrogen and —OCH3;
R2 is selected from the group consisting of cyclopropyl, cyclobutyl and tetrahydrofur-2-yl;
R3 is selected from the group consisting of (d), (f) and (g); wherein
(d) is
Figure US20190031618A1-20190131-C00561
wherein a is an integer from 0 to 1; wherein L1 is —CH2—; and wherein R5 is selected from the group consisting of methoxy-carbonyl-methyl-, 3-(aminocarbonyl)-benzyl, 1R*-(3-carboxyphenyl)-ethyl-, 5-aminocarbonyl-pyrid-2-yl-methyl-, 1-(4-carboxy-pyrid-2-yl)-ethyl 5-aminocarbonyl-thien-2-yl-methyl-, 4-aminocarbonyl-thien-2-yl-methyl-, trifluoromethyl-sulfonyl-, phenyl-sulfonyl-, 4-chlorophenyl-sulfonyl, 3-hydroxyphenyl-sulfonyl-, 2-methoxy-phenyl-sulfonyl-, 3-aminocarbonyl-phenyl-sulfonyl-, 4-aminocarbonyl-methoxy-phenyl-sulfonyl-, 3-chloro-4-carboxy-phenyl-sulfonyl, 3-trifluoromethyl-4-carboxy-phenyl-sulfonyl3-methyl-5-(aminocarbonyl)-thien-2-yl-sulfonyl- and 6-aminocarbonyl-pyrid-3-yl-sulfonyl-;
(f) is
Figure US20190031618A1-20190131-C00562
wherein R5 is trifluoromethyl-sulfonyl-;
and (g) is
Figure US20190031618A1-20190131-C00563
wherein b is an integer from 0 to 1; L2 is —CH2CH2—; and wherein R6 is selected from the group consisting of 4-trifluoromethyl, 4-methoxy- and 4-(ethoxy-carbonyl-methoxy)-; and R7 is hydrogen;
or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof.
9. A compound as in claim 4, wherein
R0 is hydrogen;
Figure US20190031618A1-20190131-C00564
is selected from the group consisting of 4-chlorophenyl and 4-methoxyphenyl;
Figure US20190031618A1-20190131-C00565
is selected from the group consisting of 4-chlorophenyl, 4-methoxyphenyl and thiazol-2-yl;
R1 is hydrogen;
R2 is selected from the group consisting of ethyl, cyclopropyl and cyclobutyl;
R3 is selected from the group consisting of 1-(3-fluoro-5-carboxy-benzyl)-piperidin-4-yl, 1-(2-fluoro-5-carboxy-benzyl)-piperidin-4-yl, 1-(5-carboxy-pyrid-2-yl-methyl)-piperidin-4-yl, 1-(6-carboxy-pyrid-2-yl-methyl)-piperidin-4-yl, 1-(5-carboxy-thien-2-yl-methyl)-piperidin-4-yl, 1-(4-carboxy-thien-2-yl-sulfonyl)-piperidin-4-yl, 1-(5-carboxy-fur-2-yl-sulfonyl)-piperidin-4-yl, 1-(3-carboxy-benzyl)-piperidin-4-yl, 1-(3-carboxy-phenyl-sulfonyl)-piperidin-4-yl, 1-(3-hydroxy-phenyl-sulfonyl)-piperidin-4-yl, 1-(4-carboxy-phenyl-sulfonyl)-piperidin-4-yl, 1-trifluoromethyl-sulfonyl-piperidin-4-yl-methyl- and 1-trifluoromethyl-sulfonyl-piperidin-4-yl;
or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof.
10. A compound as in claim 4, wherein
R0 is hydrogen,
Figure US20190031618A1-20190131-C00566
is selected from the group consisting of 4-chlorophenyl and 4-methoxyphenyl;
Figure US20190031618A1-20190131-C00567
is selected from the group consisting of 4-chlorophenyl and 4-methoxyphenyl;
R1 is hydrogen;
R2 is selected from the group consisting of ethyl, cyclopropyl and cyclobutyl;
R3 is selected from the group consisting of 1-(3-fluoro-5-carboxy-benzyl)-piperidin-4-yl, 1-(2-fluoro-5-carboxy-benzyl)-piperidin-4-yl, 1-(5-carboxy-pyrid-2-yl-methyl)-piperidin-4-yl, 1-(6-carboxy-pyrid-2-yl-methyl)-piperidin-4-yl, 1-(5-carboxy-thien-2-yl-methyl)-piperidin-4-yl, 1-(3-carboxy-benzyl)-piperidin-4-yl, 1-(3-carboxy-phenyl-sulfonyl)-piperidin-4-yl, 1-(3-hydroxy-phenyl-sulfonyl)-piperidin-4-yl, 1-trifluoromethyl-sulfonyl-piperidin-4-yl-methyl-, 1-trifluoromethyl-sulfonyl-piperidin-4-yl,
or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof.
11. A compound of formula (II)
Figure US20190031618A1-20190131-C00568
or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof.
12. A pharmaceutical composition comprising a pharmaceutically acceptable carrier and a compound of claim 1 or claim 11.
13. A pharmaceutical composition made by mixing a compound of claim 1 or claim 11 and a pharmaceutically acceptable carrier.
14. A process for making a pharmaceutical composition comprising mixing a compound of claim 1 or claim 11 and a pharmaceutically acceptable carrier.
15. A method of treating a disorder mediated by the CB-1 receptor, comprising administering to a subject in need thereof a therapeutically effective amount of the compound of claim 1 or claim 11.
16. The method of claim 15, wherein the disorder mediated by the CB-1 receptor is selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain.
17. A method of treating a disorder selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain, comprising administering to a subject in need thereof a therapeutically effective amount of the composition of claim 12.
18. The use of a compound as in claim 1 or claim 11 for the preparation of a medicament for treating: (a) obesity, (b) Type I diabetes, (c) Type II diabetes, (d) gestational diabetes, (e) latent autoimmune diabetes of adults (LADA), (f) pre-diabetes, (g) insulin resistance, (h) inadequate glucose tolerance, (i) dyslipidemia (including, but not limited to elevated triglycerides and LDL, and low HDL), (j) nonalcoholic steatohepatitis (NASH), (k) cirrhosis, (I) fatty liver disease, (m) atherosclerosis, (n) hypertension, (o) inflammatory bowel disease, (p) Alzheimer's disease, (q) osteoporosis, (r) multiple sclerosis, (s) traumatic brain injury, (t) arthritis, or (u) neuropathic pain, in a subject in need thereof.
19. The use of a compound as in claim 1 or claim 11, for use in a method for treating a disorder selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain, in a subject in need thereof.
20. A compound as in claim 1 or claim 11 for use as a medicament.
21. A compound as in claim 1 or claim 11 for use in the treatment of a disorder mediated by the CB-1 receptor.
22. A compound as in claim 1 or claim 11, for us in the treatment of a disorder mediated by the CB-1 receptor, selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain.
23. A composition comprising a compound as in claim 1 or claim 11, for use in the treatment of a disorder mediated by the CB-1 receptor.
24. A composition comprising a compound as in claim 1 or claim 11, for use in the treatment of a disorder mediated by CB-1 receptor selected from the group consisting of obesity, Type I diabetes, Type II diabetes, gestational diabetes, latent autoimmune diabetes of adults (LADA), pre-diabetes, insulin resistance, inadequate glucose tolerance, dyslipidemias (including, but not limited to elevated triglycerides and LDL, and low HDL), nonalcoholic steatohepatitis (NASH), cirrhosis, fatty liver disease, atherosclerosis, hypertension, inflammatory bowel disease, Alzheimer's disease, osteoporosis, multiple sclerosis, traumatic brain injury, arthritis, and neuropathic pain.
25. A compound, composition or method of treatment as described herein.
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