WO2002018361A2 - Compounds having activity as inhibitors of cytochrome p450rai - Google Patents

Compounds having activity as inhibitors of cytochrome p450rai Download PDF

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Publication number
WO2002018361A2
WO2002018361A2 PCT/US2001/025443 US0125443W WO0218361A2 WO 2002018361 A2 WO2002018361 A2 WO 2002018361A2 US 0125443 W US0125443 W US 0125443W WO 0218361 A2 WO0218361 A2 WO 0218361A2
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Prior art keywords
compound
carbons
alkyl
accordance
phenyl
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PCT/US2001/025443
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French (fr)
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WO2002018361A3 (en
Inventor
Jayasree Vasudevan
Alan T. Johnson
Dehua Huang
Liming Wang
Roshantha A. Chandraratna
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Allergan, Inc.
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Priority claimed from US09/651,004 external-priority patent/US6369261B1/en
Priority claimed from US09/651,234 external-priority patent/US6387951B1/en
Priority claimed from US09/651,003 external-priority patent/US6303785B1/en
Priority claimed from US09/651,235 external-priority patent/US6252090B1/en
Priority claimed from US09/651,564 external-priority patent/US6380256B1/en
Priority claimed from US09/651,566 external-priority patent/US6369225B1/en
Priority claimed from US09/651,001 external-priority patent/US6291677B1/en
Priority to JP2002523479A priority Critical patent/JP2004507531A/en
Priority to CA002420869A priority patent/CA2420869A1/en
Priority to AU8647101A priority patent/AU8647101A/en
Priority to EP01965920A priority patent/EP1366036B1/en
Application filed by Allergan, Inc. filed Critical Allergan, Inc.
Priority to DE60116642T priority patent/DE60116642T2/en
Priority to ES01965920T priority patent/ES2256288T3/en
Priority to AU2001286471A priority patent/AU2001286471B2/en
Publication of WO2002018361A2 publication Critical patent/WO2002018361A2/en
Publication of WO2002018361A3 publication Critical patent/WO2002018361A3/en
Priority to HK04102361A priority patent/HK1059439A1/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/40—Unsaturated compounds
    • C07C59/58—Unsaturated compounds containing ether groups, groups, groups, or groups
    • C07C59/72—Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings and other rings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00—Drugs for dermatological disorders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00—Drugs for disorders of the senses
    • A61P27/02—Ophthalmic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12—Antivirals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P37/00—Drugs for immunological or allergic disorders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/40—Unsaturated compounds
    • C07C59/58—Unsaturated compounds containing ether groups, groups, groups, or groups
    • C07C59/64—Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C65/00—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C65/21—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing ether groups, groups, groups, or groups
    • C07C65/28—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing ether groups, groups, groups, or groups having unsaturation outside the aromatic rings

Definitions

  • the present invention is directed to novel compounds which inhibit the enzyme cytochrome P450RAI. More particularly, the present invention is directed to compounds many of which are derivatives of phenylacetic or heteroarylacetic acid, and which inhibit the enzyme cytochrome P450RAI.
  • Several compounds of the invention that have an inhibitory effect on the enzyme cytochrome P450RAI include a cyclopropyl aryl, cyclopropyl- heteroaryl, cyclopropylaminoaryl, or (1-imidazolyl) methylaryl structure.
  • retinoid-like activity Compounds which have retinoid-like activity are well known in the art, and are described in numerous United States and other patents and in scientific publications. It is generally known and accepted in the art that retinoid-like activity is useful for treating animals of the mammalian species, including humans, for curing or alleviating the symptoms and conditions of numerous diseases and conditions.
  • compositions having a retinoid-like compound or compounds as the active ingredient are useful as regulators of cell proliferation and differentiation, and particularly as agents for treating skin-related diseases, including, actinic keratoses, arsenic keratoses, inflammatory and non-inflammatory acne, psoriasis, ichthyoses and other keratinization and hyperproliferative disorders of the skin, eczema, atopic dermatitis, Darriers disease, lichen planus, prevention and reversal of glucocorticoid damage (steroid atrophy), as a topical anti-microbial, as skin anti-pigmentation agents and to treat and reverse the effects of age and photo damage to the skin.
  • skin-related diseases including, actinic keratoses, arsenic keratoses, inflammatory and non-inflammatory acne, psoriasis, ichthyoses and other keratinization and hyperproliferative disorders of the skin, eczem
  • Retinoid compounds are also useful for the prevention and treatment of cancerous and precancerous conditions, including, premalignant and malignant hyperproliferative diseases such as cancers of the breast, skin, prostate, cervix, uterus, colon, bladder, esophagus, stomach, lung, larynx, oral cavity, blood and lymphatic system, metaplasias, dysplasias, neoplasias, leukoplakias and papillomas of the mucous membranes and in the treatment of Kaposi's sarcoma.
  • premalignant and malignant hyperproliferative diseases such as cancers of the breast, skin, prostate, cervix, uterus, colon, bladder, esophagus, stomach, lung, larynx, oral cavity, blood and lymphatic system, metaplasias, dysplasias, neoplasias, leukoplakias and papillomas of the mucous membranes and in the treatment of
  • retinoid compounds can be used as agents to treat diseases of the eye, including, without limitation, proliferative vitreoretinopathy (PVR), retinal detachment, dry eye and other corneopathies, as well as in the treatment and prevention of various cardiovascular diseases, including, without limitation, diseases associated with lipid metabolism such as dyslipidemias, prevention of post-angioplasty restenosis and as an agent to increase the level of circulating tissue plasminogen activator (TPA).
  • PVR proliferative vitreoretinopathy
  • TPA tissue plasminogen activator
  • retinoid compounds include the prevention and treatment of conditions and diseases associated with human papilloma virus (HPV), including warts and genital warts, various inflammatory diseases such as pulmonary fibrosis, ileitis, colitis and Krohn's disease, neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and stroke, improper pituitary function, including insufficient production of growth hormone, modulation of apoptosis, including both the induction of apoptosis and inhibition of T-Cell activated apoptosis, restoration of hair growth, including combination therapies with the present compounds and other agents such as Minoxidil R , diseases associated with the immune system, including use of the present compounds as immunosuppressants and immunostimulants, modulation of organ transplant rejection and facilitation of wound healing, including modulation of chelosis.
  • HPV human papilloma virus
  • various inflammatory diseases such as pulmonary fibrosis, ileitis, colitis and Krohn's disease
  • Retinoid compounds have relatively recently been also discovered to be useful for treating type II non-insulin dependent diabetes mellitus (NIDDM).
  • NIDDM non-insulin dependent diabetes mellitus
  • Several compounds having retinoid-like activity are actually marketed under appropriate regulatory approvals in the United States of America and elsewhere as medicaments for the treatment of several diseases responsive to treatment with retinoids.
  • Retinoic acid (RA) itself is a natural product, biosynthesized and present in a multitude of human and mammalian tissues and is known to play an important rule in the regulation of gene expression, tissue differentiation and other important biological processes in mammals including humans.
  • a catabolic pathway in mammals, including humans, of natural retinoic acid includes a step of hydroxylation of RA catalyzed by the enzyme Cytochrome P450RAI (retinoic acid inducible).
  • Cytochrome P450RAI retinoic acid inducible
  • A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R 2 groups;
  • X is O, S or NR where R is H, alkyl of 1 to 6 carbons or benzyl; Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, Cl, Br, or I;
  • R t is independently H or alkyl of 1 to 6 carbons;
  • p is an integer having the values of 0 to 4;
  • R 2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, CF 3 , fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons;
  • R 3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl;
  • m is an integer having
  • A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R 2 groups;
  • X is O, S or NR where R is H, alkyl of 1 to 6 carbons or benzyl;
  • the present invention relates to compounds of Formula 3
  • A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R 2 groups;
  • Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 1 to 6 carbons, Cl, Br, or I;
  • R j is independently H or alkyl of 1 to 6 carbons;
  • p is an integer having the values of 0 to 5 ;
  • R 2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons;
  • R 3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl;
  • the present invention also relates to compounds of Formula 4
  • A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R 2 groups;
  • X j is 1 -imidazolyl, or lower alkyl or halogen substituted 1- imidazolyl, OR, SR, NRR 6 where R is H, alkyl of 1 to 6 carbons or benzyl;
  • Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, Cl, Br, or I;
  • Z is -C ⁇ C-,
  • n' is an integer having the value 1 - 5, -CO-NR r ,
  • R j is independently H or alkyl of 1 to 6 carbons
  • R 2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons
  • R 3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl
  • m is an integer having the values 0 to 2
  • R 4 is independently H, alkyl of 1 to 6 carbons, or F; fluorosubstituted alkyl of 1 to 6 carbons, or halogen
  • o is an integer having the values of 0
  • A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R 2 groups;
  • X is O, S or NR where R is H, alkyl of 1 to 6 carbons, C ⁇ 6 - trialkylsilyl or benzyl;
  • Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, Cl, Br, or I
  • n' is an integer having the value 1 - 5
  • R j is independently H or alley 1 of 1 to 6 carbons
  • R 2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons
  • R 3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl
  • m is an integer having the values 0 to 3
  • R 7 is H, alkyl of 1 to 6 carbons, cycloalkyl of 3 to 6 carbons or lower alkyl substituted cycloalkyl of 1 to 6 carbons
  • n is an integer having the values of 1 to 4
  • R 8 is H, alkyl of 1 to 6 carbons, -CH 2 0(C 1 .
  • A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R 2 groups;
  • X 2 is 1 -imidazolyl, lower alkyl or halogen substituted 1 -imidazolyl, 0R 7 , SR 7 or NRR 7 where R is H, alkyl of 1 to 6 carbons or benzyl;
  • Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower al
  • n is an integer having the values of 0 to 4
  • R 8 is H, alkyl of 1 to 6 carbons, -CH 2 0(C 1 . 6 -alkyl), or a cation of a pharmaceutically acceptable base.
  • the present invention also relates to compounds of Formula 7
  • A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R 2 groups;
  • Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, F, Cl, Br, or I;
  • n' is an integer having the value 1 - 5
  • R j is independently H or alkyl of 1 to 6 carbons; p is an integer having the values of 0 to 5;
  • R 2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, CF 3 , fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons;
  • R 3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, CF 3 , fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl;
  • m is an integer having the values 0 to 2;
  • R 4 is independently H, alkyl of 1 to 6 carbons, or F; fluorosubstituted alkyl of 1 to 6 carbons, or halogen;
  • o is an integer having the values of 0 to 4;
  • n is an integer having the values of 0 to 4, and
  • R 8 is H, alkyl of 1 to 6 carbons, -CH ⁇ C ⁇ -alkyl), or a cation of a pharmaceutically acceptable base.
  • the present invention also relates to compounds of Formula 8
  • A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R 2 groups;
  • X 3 is S, or O, C(R ⁇ ) 2 , or CO;
  • Y x is H, lower alkyl of 1 to 6 carbons, cycloalkyl of 3 to 6 carbons, benzyl, lower alkyl substituted cycloalkyl of 3 to 6 carbons;
  • Z is -C ⁇ C-, -(CR ⁇ CR,) ⁇ where n' is an integer having the value 1 - 5, -CO-NR r , NR r CO-, -CO-0-, -0-
  • Y j is cycloalkyl, when Y j is not cycloalkyl then X 3 is O or S and n is 1, when Y j is not cycloalkyl then X 3 is CO, and n is 1, when Y j is not cycloalkyl then X 3 is CO and the moiety A is substituted with at least one F group.
  • this invention relates to the use of the compounds of Formula 1 through Formula 8 for the prevention or treatment of diseases and conditions in mammals, including humans, which diseases or conditions are prevented, treated, ameliorated, or the onset of which is delayed by administration of retinoid compounds or by the mammalian organism's naturally occurring retinoic acid. Because the compounds act as inhibitors of the breakdown of retinoic acid, the invention also relates to the use of the compounds of Formula 1 through Formula 8 in conjunction with retinoic acid or other retinoids.
  • retionoids are useful for the treatment of skin-related diseases, including, without limitation, actinic keratoses, arsenic keratoses, inflammatory and non-inflammatory acne, psoriasis, ichthyoses and other keratinization and hyperproliferative disorders of the skin, eczema, atopic dermatitis, Darriers disease, lichen planus, prevention and reversal of glucocorticoid damage (steroid atrophy), as a topical anti-microbial, as skin anti-pigmentation agents and to treat and reverse the effects of age and photo damage to the skin.
  • the retinoids are also useful for the prevention and treatment of metabolic diseases such as type II non-insulin dependent diabetes mellitus (NIDDM) and for prevention and treatment of cancerous and precancerous conditions, including, premalignant and malignant hyperproliferative diseases such as cancers of the breast, skin, prostate, cervix, uterus, colon, bladder, esophagus, stomach, lung, larynx, oral cavity, blood and lymphatic system, metaplasias, dysplasias, neoplasias, leukoplakias and papillomas of the mucous membranes and in the treatment of Kaposi's sarcoma.
  • metabolic diseases such as type II non-insulin dependent diabetes mellitus (NIDDM)
  • cancerous and precancerous conditions including, premalignant and malignant hyperproliferative diseases such as cancers of the breast, skin, prostate, cervix, uterus, colon, bladder, esophagus, stomach, lung, la
  • Retinoids can also be used as agents to treat diseases of the eye, including, without limitation, proliferative vitreoretinopathy (PVR), retinal detachment, dry eye and other corneopathies, as well as in the treatment and prevention of various cardiovascular diseases, including, without limitation, diseases associated with lipid metabolism such as dyslipidemias, prevention of post-angioplasty restenosis and as an agent to increase the level of circulating tissue plasminogen activator (TPA).
  • PVR proliferative vitreoretinopathy
  • TPA tissue plasminogen activator
  • retinoids include the prevention and treatment of conditions and diseases associated with human papilloma virus (HPV), including warts and genital warts, various inflammatory diseases such as pulmonary fibrosis, ileitis, colitis and Krohn's disease, neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and stroke, improper pituitary function, including insufficient production of growth hormone, modulation of apoptosis, including both the induction of apoptosis and inhibition of T-Cell activated apoptosis, restoration of hair growth, including combination therapies with the present compounds and other agents such as Minoxidil R , diseases associated with the immune system, including use of the present compounds as immunosuppressants and immunostimulants, modulation of organ transplant rejection and facilitation of wound healing, including modulation of chelosis.
  • HPV human papilloma virus
  • various inflammatory diseases such as pulmonary fibrosis, ileitis, colitis and Krohn's disease
  • This invention also relates to a pharmaceutical formulation
  • a pharmaceutical formulation comprising one or more compounds of Formula 1 through Formula 8 in admixture with a pharmaceutically acceptable excipient, said formulation being adapted for administration to a mammal , including a human being, to treat or alleviate the conditions which were described above as treatable by retinoids, or which are controlled by or responsive to the organism' s native retinoic acid.
  • These formulations can also be co-administered with retinoids to enhance or prolong the effects of medications containing retinoids or of the organism's native retinoic acid.
  • Figure 1 is a schematic representation of the P450RAI cell based assay utilized to evaluate the ability of the compounds of the invention to inhibit the Cytochrome P450RAI enzyme.
  • Figure 1 shows a schematic diagram of the P450RAI-1 cell based assay.
  • P450RAI-1 stably transfected HeLa cells are maintained in 100 millimolar tissue culture dishes in Modified Eagle's Medium (MEM) containing 10 % Fetal Bovine Serum (FBS) and 100 ⁇ g/ml hygromycin. Exponentially growing cells are harvested by incubating in trypsin.
  • MEM Modified Eagle's Medium
  • FBS Fetal Bovine Serum
  • IC 50 values represent the concentration of inhibitor required to inhibit all-/n s , -RA metabolism by 50 percent and are derived manually from log-transformed data. The IC 50 values obtained in this assay for several preferred compounds of the invention are disclosed in Table 1 below.
  • Assays of Retinoid-like or Retinoid Antagonist and Inverse Aqonist- like Biological Activity Assays described below measure the ability of a compound to bind to, and/or activate various retinoid receptor subtypes. When in these assays a compound binds to a given receptor subtype and activates the transcription of a reporter gene through that subtype, then the compound is considered an agonist of that receptor subtype. Conversely, a compound is considered an antagonist of a given receptor subtype if in the below described co-tranfection assays the compound does not cause significant transcriptional activation of the receptor regulated reporter gene, but nevertheless binds to the receptor with a K d value of less than approximately 1 micromolar.
  • Table # refers to the Table provided below where the compound is identified with reference to a corresponding specific formula of Formulas 9 through 16.
  • retinoid all-trans-retinoic acid ATRA
  • oral retinoids such as 13 -cis RA and etretinate
  • This irritation is a direct result of activation of the RAR nuclear receptors.
  • Analysis of retinoid topical irritation is also a highly reproducible method of determining in vivo retinoid potency.
  • the SKHl-rVBR or hairless mouse provides a convenient animal model of topical irritation, since retinoid-induced skin flaking and abrasion can be readily scored by eye (Standeven et al. , "Specific antagonist of retinoid toxicity in mice.” Toxicol. Appl.
  • P450RAI inhibitors of the present invention also causes an increase in the endogenous levels of ATRA that results in ATRA-induced irritation in skin of hairless mice.
  • the attached data table discloses the retinoid-mimetic effects of some P450RAI inhibitor compounds of the present invention on the skin of hairless mice.
  • mice Female hairless mice (Crl:SKHl-t>BR), 5-7 weeks old, were obtained from Charles River Breeding Labs (Wilmington, MA). Animals were about 6 weeks old at the start of the experiments. Food (Purina Rodent Chow 5001) and reverse osmosis water were provided ad libitum. Mice were housed individually throughout the dosing period. In some experiments, mice that fit within a defined weight range, e.g. , 2 l-25g, were selected from the available stock and then randomly assigned to the various treatment groups, using body weight as the randomization variable. The compounds to be tested were dissolved in acetone for application o the backs of the mice.
  • mice were treated topically on the back in a volume of 4.0 ml/kg (0.07-0.12ml) adjusted daily so as to deliver a fixed dose of test compound per g body weight. Doses are disclosed as nmol/25g. Unless indicated otherwise, mice were treated with retinoids once daily on days 1 through 5 and observed on days 2, 3, 4, 5, 6, 7 and 8. The mice were weighed daily and the dorsal skin was graded daily using separate semi-quantitative scales to determine flaking and abrasion. These flaking and abrasion scores were combined with weight change (if any) to create a cutaneous toxicity score (Blackjack score). Cutaneous Toxicity Score A visual grading scale was used for characterizing topical irritation on a daily basis. The grading scale used is as follows:
  • Topical Toxicity Score The flaking and abrasion observations were combined with body weight observations to calculate a single, semiquantitative topical or cutaneous "toxicity score" as detailed below.
  • the toxicity score also known as “blackjack score” since the theoretical maximum is 21) takes into account the maximal severity, and the time of onset of skin flaking and abrasions and the extent of weight between the first and last days of the experiment. Below are listed the seven numerical components of the toxicity score and an explanation of how those values are combined to calculate the toxicity score. 1. Flaking-Maximal Severity: Highest flaking score attained during observation period. 2.
  • Flaking-Day of Onset of grade 2 or worse 0 - > 8 days 1 - day 8 2 - day 6 or 7 3 - day 4 or 5 4 - day 2 or 3 3.
  • Flaking- Average Severity Flaking severity scores are summed and divided by the number of observation days. 4.
  • Abrasion-Maximal Severity Highest abrasion score attained during observation period. 5.
  • Abrasion- Average Severity Abrasion severity scores are summed and divided by the number of observation days. 7.
  • Composite abrasion scores are calculated for each individual animal in a group, averaged and rounded to the nearest integer. Values can range from 0-8. Calculation of Toxicity Score Composite flaking score, composite abrasion score, and systemic toxicity score are summed to give the "toxicity score.” Toxicity scores are calculated for each individual animal in a group, averaged, and rounded to the nearest integer. Values can range from 0-21 and are expressed in Table 1 A below as the mean ⁇ SD of the values for a group. Calculation of Percentage Change in Body Weight The body weight at the time of the last weighing (day 8, 11, or 12) was subtracted from the initial body weight. The difference was divided by the initial body weight, multiplied by 100%, and rounded to the nearest integer. Values were calculated for each individual animal and the mean and standard deviation for each group are shown.
  • the compounds of this invention may be administered systemically or topically, depending on such considerations as the condition to be treated, need for site-specific treatment, quantity of drug to be administered, and numerous other considerations.
  • it will generally be preferred to administer the drug topically, though in certain cases such as treatment of severe cystic acne or psoriasis, oral administration may also be used.
  • Any common topical formulation such as a solution, suspension, gel, ointment, or salve and the like may be used. Preparation of such topical formulations are well described in the art of pharmaceutical formulations as exemplified, for example, by Remington's Pharmaceutical Science, Edition 17, Mack Publishing Company, Easton, Pennsylvania.
  • these compounds could also be administered as a powder or spray, particularly in aerosol form.
  • the drug may be confected as a powder, pill, tablet or the like or as a syrup or elixir suitable for oral administration.
  • the compound will be prepared as a solution or suspension capable of being administered by injection. In certain cases, it may be useful to formulate these compounds by injection. In certain cases, it may be useful to formulate these compounds in suppository form or as extended release formulation for deposit under the skin or intramuscular injection.
  • medicaments can be added to such topical formulation for such secondary purposes as treating skin dryness; providing protection against light; other medications for treating dermatoses; medicaments for preventing infection, reducing irritation, inflammation and the like.
  • Treatment of dermatoses or any other indications known or discovered to be susceptible to treatment by retinoic acid-like compounds, or to control by naturally occurring retinoic acid will be effected by administration of the therapeutically effective dose of one or more compounds of the instant invention.
  • a therapeutic concentration will be that concentration which effects reduction of the particular condition, or retards its expansion.
  • the compound potentially may be used in prophylactic manner to prevent onset of a particular condition.
  • alkyl refers to and covers any and all groups which are known as normal alkyl and branched-chain alkyl. Unless specified otherwise, lower alkyl means the above-defined broad definition of alkyl groups having 1 to 6 carbons in case of normal lower alkyl, and 3 to 6 carbons for lower branch chained alkyl groups.
  • a pharmaceutically acceptable salt may be prepared for any compound in this invention having a functionality capable of forming a salt, for example an acid functionality.
  • a pharmaceutically acceptable salt is any salt which retains the activity of the parent compound and does not impart any deleterious or untoward effect on the subject to which it is administered and in the context in which it is administered.
  • Pharmaceutically acceptable salts may be derived from organic or inorganic bases.
  • the salt may be a mono or polyvalent ion. Of particular interest are the inorganic ions, sodium, potassium, calcium, and magnesium.
  • Organic salts may be made with amines, particularly ammonium salts such as mono-, di- and trialkyl amines or ethanol amines. Salts may also be formed with caffeine, tromethamine and similar molecules.
  • Such may be formed with any inorganic or organic acids or alkylating agent such as methyl iodide.
  • Preferred salts are those formed with inorganic acids such as hydrochloric acid, sulfuric acid or phosphoric acid. Any of a number of simple organic acids such as mono-, di- or tri- acid may also be used.
  • Some compounds of the present invention may have trans and cis (E and Z) isomers. Unless specific orientation of substituents relative to a double bond or a ring is indicated in the name of the respective compound, and/or by specifically showing in the structural formula the orientation of the substituents relative to the double bond or ring the invention covers trans as well as cis isomers.
  • Some of the compounds of the present invention may contain one or more chiral centers and therefore may exist in enantiomeric and diastereomeric forms.
  • the scope of the present invention is intended to cover all isomers per se, as well as mixtures of cis and trans isomers, mixtures of diastereomers and racemic mixtures of enantiomers (optical isomers) as well.
  • a bond drawn with a wavy line indicates that the carbon to which the bond is attached can be in any of the applicable possible configurations.
  • General Synthetic Methodology The compounds of the invention are encompassed by the general Formulas 1 through 8 provided above.
  • a linker or tethering group designated Z covalently connects an aromatic or heteroaromatic moiety designated A(R 2 )-CH 2 ) n -COOR 8 and another cyclic moiety which in accordance with these formulas is a substituted phenyl, substituted tetrahydronaphthalene, substituted chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline moiety.
  • a compound such as X 4 -A(R 2 )-CH 2 ) n -COOR 8 is commercially available, or can be made in accordance with the chemical literature, or with such modification of known chemical processes which are within the skill of the practicing organic chemist.
  • the group X 4 represents a reactive group, which is suitable for coupling the X 4.
  • A(R 2 )-CH 2 ) n -COOR 8 compound to a derivative of the substituted phenyl, substituted tetrahydronaphthalene, substituted chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline moiety so that as a result of the coupling the linker or tether moiety Z is formed.
  • the group X 4 is a leaving group such as halogen, or trifluoromethanesulfonyloxy, or a group capable of participating in a Wittig or Homer Emmons reaction.
  • the group X 4 is an ethynyl group capable of undergoing a coupling reaction with a leaving group (such as a halogen or a trifluoromethanesulfonyloxy group) attached to the substituted phenyl, substituted tetrahydronaphthalene, substituted chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline moiety.
  • the group X 4 can also represent an OH or an NH 2 group that forms an ester (COO) or amide (CONH) linker, respectively, when reacted with an activated carboxyl derivative of the substituted phenyl, substituted tetrahydronaphthalene, substituted chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline moiety.
  • Examples for the compounds of formula X 4 A(R 2 )-CH 2 ) n -COOR 8 are provided in the specific examples below.
  • X 4 group is halogen
  • analogous aryl and and heteroaryl hydroxyl compounds and amines wherein the halogen of the above-listed compounds is replaced by OH or NH 2 respectively, also serve as additional examples for the reagents of the formula X 4 - A(R 2 )-CH 2 ) n -COOR 8 .
  • X 4 is OH or NH 2 , respectively.
  • a derivative of the substituted phenyl, substituted tetrahydronaphthalene, substituted chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline moiety is synthesized first, having a covalently attached X 5 group.
  • the X 5 group reacts with the X 4 group of the reagent X 4 -A(R 2 )-CH 2 ) n -COOR 8 to form the linker designated Z in Formulas 1 through 8.
  • the X 5 group is one that is capable of participating in a catalyzed coupling reaction, (such as an ethynyl group when X 4 is a leaving group), or a leaving group (such as halogen or trifluoromethanesulfonyloxy when X 4 is an ethynyl group) , or an activated carboxy lie acid function (when X 4 is OH or NH 2 ).
  • the X 5 group can also be an OH, SH or NH 2 group when the X 4 group is an activated carboxylic acid function.
  • substituted phenyl substituted tetrahydronaphthalene
  • substituted chroman substituted thiochroman
  • tetrahydroquinoline substituted thiochroman
  • tetrahydroquinoline substituted thiochroman
  • tetrahydroisoquinoline intermediates having an X 5 functionality are provided below, and are also available in the chemical scientific and patent literature.
  • the substituted phenyl, tetrahydronaphthalene, chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline moiety of the novel compounds of the invention are derivatized in a manner to include the specific substituents (such as for example the cycloalkyl substituents) encompassed within the scope of the invention, either before or after the - A(R 2 )-CH 2 ) n -COOR 8 moiety has been attached and the linker Z has formed, as illustrated by the below described specific examples.
  • the -CH 2 ) ⁇ -COOR 8 moiety of the compounds of the invention can be modified in order to obtain still further compounds of the invention.
  • One such modification is saponification of compounds where the R 8 group is an alkyl or -CH 2 0(C 1 . 6 -alkyl) group.
  • Another modification is esterification of the carboxylic acid function when the R 8 group is H or a cation.
  • Such saponification and esterification reactions are well known in the art and within the skill of the practicing organic chemist.
  • Still another modification of the compounds of the invention (or of the intermediates X 4 -A(R 2 )- CH 2 ) n -COOR 8 , or of precursors to these intermediates) is the homologation of the (CH 2 ) n group.
  • the preferred compounds of the invention are those where A is phenyl, naphthyl, pyridyl, thienyl or furyl. Even more preferred are compounds where A is phenyl. As far as substitutions on the A (phenyl) and A (pyridyl) groups are concerned, compounds are preferred where the phenyl group is 1,4 (para) substituted and where the pyridine ring is 2,5 substituted.
  • substitution in the 2,5 positions in the "pyridine” nomenclature corresponds to substitution in the 6-position in the "nicotinic acid” nomenclature.
  • the R 2 substituent is preferably a fluoro group that is preferably located on the aromatic carbon adjacent (ortho) to the carbon bearing the -(CH 2 ) n -COOR 8 group.
  • the -(CH 2 ) n -COOR 8 is concerned compounds are preferred where n is 0, 1 or 2, and even more preferred where n is 1.
  • R 8 group H lower alkyl of 1 to 3 carbons, and -CH 2 0(C,_ 6 -alkyl) groups are preferred, as well as the pharmaceutically acceptable salts of the free acids when R 8 is H.
  • the lower alkyl and -CH 2 0(C j. 6 -alkyl) groups ethyl and OCH 2 CH 3 , respectively, are presently most preferred.
  • the linker Z is attached to the 6 position in Formula 1, to the 4 position in Formula 2, to the 6 position in Formula 3, to the 6 position in Formula 4, to the 4 position in Formula 5, to the 4 position in Formula 6, to the 6 position in Formula 7, and to the 6 position in Formula 8.
  • the R j group substituting the non-aromatic rings in Formulas 1, 3, 4, 7 and 8 is preferably alkyl, more preferably alkyl of 1 to 3 carbons, and most preferably methyl.
  • the R x group substituting the cyclopropane ring in Formulas 1, 2, 3 and 7 is preferably non-existent (p is 0), or is alkyl of 1 to 3 carbons, even more preferably methyl.
  • the X group in Formulas 1 and 5 is preferably O, and in Formula 2 X is preferably O or NR.
  • the X x group in Formula 4 is preferably 1-imidazolyl, substituted 1- imidazolyl, or NRR 6 , where R 6 is preferably cyclopropyl or branched-chain alkyl.
  • the X 2 group in Formula 6 is preferably 1-imidazolyl or substituted 1-imidazolyl.
  • the Y group is preferably H, lower alkyl of 1 to 3 carbons, cycloalkyl, lower alkyl substituted cycloalkyl, or halogen. Among these, H, Cl, and cyclopropyl are most preferred.
  • the Y ! group of Formula 8 is preferably H, lower alkyl of 1 to 3 carbons, cycloalkyl, or lower alkyl substituted cycloalkyl. Among these H, ethyl and cyclopropyl are presently most preferred. The most preferred compounds of the invention are disclosed in Tables 2 through 9 with reference to Formulas 9 through 16.
  • the preferred compounds shown in Table 3 with reference to the more specific Formula 10 are within the scope of Formula 2; the preferred compounds shown in Table 4 with reference to the more specific Formula 11 are within the scope of Formula 3; the preferred compounds shown in Table 5 with reference to the more specific Formula 12 are within the scope of Formula 4; the preferred compounds shown in Table 6 with reference to the more specific Formula 13 are within the scope of Formula 5; the preferred compounds shown in Table 7 with reference to the more specific Formula 14 are within the scope of Formula 6; the preferred compounds shown in Table 8 with reference to the more specific Formula 15 are within the scope of Formula 7, and the preferred compounds shown in Table 9 with reference to the more specific Formula 16 are within the scope of Formula 8.
  • the compounds of the invention can be synthesized by applying the general synthetic methodology described above, and by such modifications of the hereinafter described specific synthetic routes which will become readily apparent to the practicing synthetic organic chemist in light of this disclosure and in view of general knowledge available in the art.
  • the hereinafter disclosed specific reaction schemes are directed to the synthesis of exemplary and preferred compounds of the invention. Whereas each of the specific and exemplary synthetic routes shown in these schemes may describe specific compounds of the invention only within the scope of one or two of the general Formulas 1 through 8, the synthetic processes and methods used therein are adaptable within the skill of the practicing organic chemist and can be used with such adaptation for the synthesis of compounds of the invention which are not specifically described herein as examples.
  • Reaction Scheme 1 discloses a presently preferred synthetic route to certain intermediates or reagents having the general formula X 4 - A(R 2 )- CH 2 ) n -COOR 8 , where the symbol A represents a di-, or tri-substituted phenyl moiety. These intermediates are utilized in the synthesis of the compounds of the invention.
  • Reaction Scheme 3 discloses presently preferred synthetic routes to obtain exemplary and preferred tetrahydronaphthalene compounds of the invention within the scope ofFormula 4 where X l represents a dialkyl substituted nitrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety.
  • Reaction Scheme 4 discloses presently preferred synthetic routes to obtain exemplary and preferred isoquinoline compounds of the invention within the scope ofFormula 3 where the symbol Y represents hydrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety.
  • Reaction Scheme 5 discloses presently preferred synthetic routes to obtain exemplary and preferred chroman compounds of the invention within the scope o Formula 8 where the symbol Y t represents hydrogen, Z is an ethynyl moiety or an ester (COO) function, and A is a substituted phenyl moiety.
  • Reaction Scheme 6 discloses presently preferred synthetic routes to obtain other exemplary and preferred chroman compounds of the invention within the scope ofFormula 8 where the symbol Y x represents a cyclopropyl group, Z is an ethynyl moiety and A is a substituted phenyl moiety.
  • Reaction Scheme 7 discloses presently preferred synthetic routes to obtain exemplary and preferred chroman compounds of the invention within the scope ofFormula 1 where the symbol X represents oxygen (O), Y represents hydrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety.
  • Reaction Scheme 8 discloses presently preferred synthetic routes to obtain other exemplary and preferred chroman compounds of the invention within the scope ofFormula 1 where the symbol X represents oxygen (O), Y represents a cyclopropyl group, Z is an ethynyl moiety and A is a substituted phenyl moiety.
  • Reaction Scheme 9 discloses presently preferred synthetic routes to obtain exemplary and preferred tetrahydroquinoline compounds of the invention within the scope of Formula 1 where the symbol X represents an alkyl substituted nitrogen (alkyl-N), Y represents hydrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety.
  • Reaction Schemes 10 and 11 disclose presently preferred synthetic routes to obtain exemplary and preferred phenyl compounds of the invention within the scope ofFormula 2 where the symbol X represents oxygen (O), R 5 is alkyl or benzyl, Z is an ethynyl moiety and A is a substituted phenyl moiety.
  • Reaction Scheme 12 discloses presently preferred synthetic routes to obtain exemplary and preferred phenyl compounds of the invention within the scope ofFormula 2 where the symbol R 5 -X represents an alkyl, dialkyl, benzyl or dibenzyl substituted nitrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety.
  • Reaction Schemes 13 and 14 disclose presently preferred synthetic routes to obtain exemplary and preferred phenyl compounds of the invention within the scope of Formula 6 where the symbol X 2 represents a ( 1 - imidazolyl) moiety, Z is an ethynyl moiety and A is a substituted phenyl moiety.
  • R i-propyl intermediate 97
  • R i-propyl intermediate 104
  • R t-butyl
  • TBS t-butyldimetliylsilyl
  • Reaction Scheme 16 discloses presently preferred synthetic routes to obtain exemplary and preferred tetrahydronaphthalene compounds of the invention within the scope ofFormula 4 where the symbol X t represents a (1-imidazolyl) moiety, Y represents hydrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety.
  • Reaction Scheme 17 discloses presently preferred synthetic routes to obtain exemplary and preferred phenyl compounds of the invention within the scope ofFormula 6 where the symbol X 2 represents a 1-methyl- cyclopropoxy moiety, Y represents hydrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety.
  • Reaction Scheme 18 discloses presently preferred synthetic routes to obtain exemplary and preferred phenyl compounds of the invention within the scope of Formula 5 where the symbol X represents oxygen (O), Y represents a tertiary-butyl group, Z is an ethynyl moiety and A is a substituted phenyl moiety.
  • Methyl-2-fluoro-4-iodo benzoate (Reagent G) A solution of 2-fluoro-4-iodo toluene (5g, 26.6mmol) in pyridine (2mL) and water (20mL) was treated with potassium permanganate (16.6g, 105mmol) and heated at 150°C overnight. The reaction mixture was then cooled to room temperature and filtered and the filtrate was extracted with hexane. The aqueous phase was acidified with 10% hydrochloric acid and extracted with ethyl acetate. The organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo.
  • Ethyl-2-fluoro-4-trifluoromethylsulfonyloxy-benzoate (Intermediate 6)
  • a stirred, cooled (ice bath) solution of ethyl-2-fluoro-4-hydroxy- benzoate (Intermediate 5, 0.368g, 2mmol) and 2,6-di-tert-butyl-4-methyl- pyridine (0.81 g, 8mmol) in 8mL of dichloromethane was treated with trifluoromethanesulfonic anhydride (O.lg, 4mmol). The reaction mixture was allowed to warm to ambient temperature and stirred overnight.
  • Ethyl-2-fluoro-4-trimethylsilanylethynyl-benzoate (Intermediate 7)
  • a solution of ethyl-2-fluoro-4- trifluoromethylsulfonyloxy-benzoate (Intermediate 6, 1.82g, 6mmol) in triethyl amine (12mL) and anhydrous tetrahydrofuran (30mL) was treated with copper(I)iodide (0.12g, 0.6mmol) and sparged with argon.
  • GENERAL PROCEDURE A 7-Methoxy-l.l -dimethyl- 1.2.3.4- tetrahydronaphthalene (Intermediate s)
  • a solution of 7- methoxy-1-tetralone (1.76g, lOmmol) in anhydrous dichloromethane (5mL) was cannulated into the reaction mixture and the resulting solution was allowed to warm to ambient temperature and stirred overnight.
  • reaction mixture was then cooled to -40°C and cautiously quenched with methanol (11 mL) . It was diluted with dichloromethane and saturated aqueous ammonium chloride solution. The phases were separated and the aqueous phase was extracted with dichloromethane (x2mL). The combined organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to the title compound (1.75g, 92%) as an oil.
  • GENERAL PROCEDURE B 6-Methoxy-4.4-dimethyl- 1.2.3.4- tetrahydronaphthalene- 1 -one (Intermediate 9)
  • a solution of 7-methoxy- 1 , 1 -dimethyl- 1 ,2,3 ,4-tetrahydrona ⁇ hthalene (Intermediate 8, 1.65g, 8.7 rnmol) in 7.5mL of glacial acetic acid was cooled to 0°C and treated with a solution of chromium trioxide (2g, 20mmol) in 8mL of acetic acid and 7mL of water. The reaction mixture was then allowed to warm to ambient temperature and stirred overnight.
  • 6-Hydroxy-4.4-dimethyl-1.2.3.4-tetrahvdronaphthalene-l-one (Intermediate 10)
  • a stirred, cooled (-78°C) solution of 6-methoxy-4,4-dimethyl- 1 ,2,3 ,4- tetrahydronaphthalene-1-one (Intermediate 9, 0.8, 3mmol) under argon was treated with a 1M solution of boron trrbromide (lOmL).
  • the reaction mixture was allowed to warm to ambient temperature and stirred overnight.
  • the reaction mixture was cooled to -78°C, quenched and diluted with saturated aqueous sodium bicarbonate solution and the aqueous phase was extracted with dichloromethane (x2).
  • GENERAL PROCEDURE C 4.4-Dimethyl-6-trifluoromethylsulfonyloxy- 1.2.3.4-tetrahydronaphthalene- 1 -one (Intermediate 11)
  • GENERAL PROCEDURE D 4.4-Dimethyl-6-trimethylsilanyl-eth y nyl- 1.2.3.4-tetrahvdronaphthalene- 1 -one (Intermediate 12)
  • Trirnethylsilyl acetylene (0.85mL, 6mmol) was then added followed by dichlorobis(tri ⁇ henyl ⁇ hosphine) ⁇ alladium(II) (0.25g, 0.36mmol).
  • the resulting reaction mixture was heated at 70°C for 17h. It was then cooled to ambient temperature, diluted with diethyl ether and filtered over a bed of celite. The filtrate was evaporated vacuo to an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using 5% ethyl acetate in hexane as the eluent to afford the title compound (0.28g, 72%).
  • GENERAL PROCEDURE E 6-Ethvnyl-4.4-dimethyl- 1.2.3.4- tetrahvdronphthalene- 1 -one (Intermediate 13)
  • a solution of 4,4-dimethyl-6-trimethylsilanylethynyl- 1 ,2,3 ,4- tetrahydronaphthalene- 1 -one (Intermediate 12, 0.28g, 1.03mmol) in methanol (lOmL) was treated with potassium carbonate (0.74g, 5.35mmol) and stirred at ambient temperature for 4h. The volatiles were distilled off in vacuo and the residue was diluted with water and extracted with diethyl ether (x2).
  • GENERAL PROCEDURE F 4-(8.8-Dimethyl-5-oxo-5.6.7.8-tetrahvdro- na ⁇ hthalene-2-yl-ethvnylVbenzoic acid ethyl ester (Intermediate 14)
  • a solution of 6-ethynyl-4,4-dimethyl- 1 ,2,3 ,4-tetrahydrona ⁇ hthalene- 1-one (Intermediate 13, 0.23g, 1.lmmol) and ethyl-4-iodo benzoate (Reagent A, 0.36g, 1.3mmol) in triethyl amine (7mL) and anhydrous tetrahydrofuran (3mL) was treated with copper(I)iodide (0.114g, 0.6mmol) and sparged with argon for 5 minutes.
  • GENERAL PROCEDURE G 4-(5-Cvclopropylamino-8.8-dimethyl-5.6.7.8- tetrahydro-naphthalene-2yl-ethynyl -benzoic acid ethyl ester (Compound 1, General Formula 4)
  • a solution of 4-(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalene- -ylethynyl)-benzoic acid ethyl ester (Intermediate 14, 0.14g, 0.4mmol) in 3mL of dichloromethane and 2mL of acetonitrile was treated with cyclopropyl amine(lmL, 14.45mmol).
  • GENERAL PROCEDURE I 4-[(5-Cvclonropyl-methyl-amino)-8,8- dimethyl-5.6.7.8-tetrahydro-naphthalene-2yl-ethvnvn-benzoic acid (Compound 3, General Formula 4)
  • a solution of 4-[(5-cyclo ⁇ ro ⁇ yl- methyl-amino)-8,8-dimethyl-5,6,7,8-tetrahydro-na ⁇ hthalene-2-ylethynyl]- benzoic acid ethyl ester (Compound 2, 0.065g, 0.158mmol) in ethanol (lmL) and tetrahydrofuran (lmL) was treated with 1M aqueous sodium hydroxide solution (lmL) and heated at 80°C for lh.
  • GENERAL PROCEDURE J 4-[(8.8-Dimethyl-5-oxo-5.6.7.8-tetrahydro- naphthalene-2-yl-ethynylVphenyl]-acetic acid (Compound 5, General Formula 8)
  • a solution of 4-[(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalene- 2-yIethynyl)-phenyl]-acetic acid methyl ester (Compound 4, O.lg, 0.28mmol) in a mixture of methanol (2mL), tetrahydrofuran (3.5mL) and water (1.5mL) was treated with lithium hydroxide monohydrate (0.1 lg, 2.62mmol) and the resulting reaction mixture was stirred at ambient temperature for 3h.
  • GENERAL PROCEDURE K 8.8-Dimethyl-5.6.7.8-tetrahydro-naphthalene- 1 -one-2-carboxylic acid-4-(te t-butoxycarbonylmethyl)phenyl ester Compound 19, General Formula 8)
  • a solution of 4,4-dimethyl-6-trifluoromethylsulfonyloxy- 1 ,2,3 ,4- tetrahydronaphthalene- 1 -one (Intermediate 11, 0.14g, 0.434mmol), t-butyl- 4-hydroxy-phenyl acetate (Reagent E, 0.14g, 0.673mmol), palladium acetate (0.054g, 0.24mmol) and l,3-bis(di ⁇ henyl ⁇ hosphino)pro ⁇ ane (0.082g, 0.2mmol) in a mixture of dimethylsulfoxide ( 1 mL), 1 ,2-dichloroethane (1.5mL) and triethy
  • 6-Methoxy-4.4-dimethyl- 1.2.3.4-tetrahvdro-isoquinoline (Intermediate 18)
  • a solution of 6-methoxy-4,4-dimethy 1- 1 ,2,3 ,4-tetrahy dro- isoquinoline- 1 -one (Intermediate 17, 3.5g, 17mmol) in lOOmL of anhydrous tetrahydrofuran was treated with lithium aluminum hydride (1 ,3g, 34.25mmol) in small portions and the resulting suspension was refluxed for 3 hours under argon.
  • reaction mixture was then cooled in an ice bath and cautiously quenched with saturated aqueous sodium sulfate solution and the resulting slurry was filtered and the filter-cake washed well with ethyl acetate.
  • the filtrate and washings were evaporated in vacuo to a brown oil which was dissolved in chloroform, the solution was dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title compound (3.2g, ⁇ 100%).
  • 6-Methoxy-4.4-dimethyl-1.2.3.4-tetrahvdro-isoquinoline-2-carbaldehvde (Intermediate 19)
  • a solution of 6-methoxy-4,4-dimethy 1- 1 ,2,3 ,4-tetrahy dro-isoquinoline (Intermediate 18, 3.2g, 16.7mmol) in anhydrous dichloromethane (40mL) was treated with formic acid (lmL, 26.5mmol) followed l-(3- dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (3.9g, 20.34mmol) and the resulting solution was stirred at ambient temperature overnight.
  • 6-Hvdroxy-4.4-dimethyl- 1.2.3 ,4-tetrahy dro-isoquinoline-2-carbaldehvde (Intermediate 20) A stirred, cooled (-78°C) solution of 6-methoxy-4,4- dimethyl-l,2,3,4-tetrahydro-isoquinoline-2-carbaldehyde (Intermediate 19, 3.26g, 15mmol) in anhydrous dichloromethane (15mL) was treated with IM solution of boron tribromide in dichloromethane (50mL) stirred at ambient temperature for 3h.
  • reaction mixture was allowed to warm to -20°C over 1.5h, quenched with saturated aqueous ammonium chloride solution and extracted with diethyl ether (x2). The combined organic phase was dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title compound as an oil (O.lg, 94%>).
  • GENERAL PROCEDURE L r4-(2,2.4,4-Tetramethyl-chroman-6-yl- ethvnyl phenyl] acetic acid (Compound 28, General Formula 8)
  • 6-Bromo-4.4-dimethyl-chroman-2-one A solution of 3-methyl-but-2-enoic acid 4-bromo-phenyl ester (7g, 27.6mmol) in anhydrous dichloromethane (200mL) was cooled (ice bath) and treated with aluminum chloride (6.6g, 49.6mmol) and the reaction mixture was stirred overnight at ambient temperature. The reaction mixture was quenched with saturated aqueous sodium bicarbonate solution and extracted with diethyl ether (x2).
  • 6-Bromo-2.2.4.4-tetramethyl-chroman A solution of 4-bromo-2-(3-hydroxy-l,l,3-trimethyl-butyl)-phenol (l.lg, 3.92mmol) and -toluene sulfonic acid (0.744g, 3.92mmol) in benzene (20mL) was refluxed overnight. The reaction mixture cooled to ambient temperature, filtered on silica gel and washed with 10% ethyl acetate in hexane.
  • 6-Ethvnyl-2.2.4.4-tetramethyl chroman Following general procedure E and using 2,2,4,4-tetramethyl-6-(2- trimethylsilyl)ethynyl chroman (0.61g, 1.87mmol), potassium carbonate (1.9g, 13.74mmol) and methanol the title compound was obtained (0.4g, 90%).
  • GENERAL PROCEDURE M 6-Bromo-2.2.4.4-tetramethyl-chroman-8- carbaldehvde (Intermediate 30)
  • a stirred, cooled (ice bath) solution of 6-bromo-2,2,4,4-tetramethyl chroman, (0.5g, 1.865mmol) in anhydrous dichloromethane (5mL) was treated with a IM solution (1.86mL, 1.86mmol) of titanium tetrachloride in dichloromethane followed by ⁇ , ⁇ -dichloro methyl ether (0.214g, 1.865mmol). The reaction mixture was allowed to warm to ambient temperature for 4h.
  • GENERAL PROCEDURE N 6-Bromo-8-vinyl -2.2.4.4-tetramethyl- chroman (Intermediate 31)
  • a solution of methy lidene triphenyl phosphorane [generated from methyl triphenylphosphonium bromide (7g, 20mmol) and (11.8mL, 19mmol) of a 1.6M solution of w-butyl lithium in hexanes ] was added 6-bromo- 2,2,4,4-tetramethyl chroman-8-carbaldehyde (Intermediate 30, 0.52g, 1.75mmol).
  • GENERAL PROCEDURE O 6-Bromo-8-cyclopropyl-2.2.4,4-tetramethyl chroman (Intermediate 32) A stirred, cooled (-30°C) solution of 6-bromo-8-vinyl-2,2,4,4- tetramethyl chroman (Intermediate 31, 0.37g, 1.26mmol) in diethyl ether was treated with a solution of diazomethane in diethyl ether and catalytic amount of palladium (I ⁇ )acetate ( ⁇ 30mg).
  • GENERAL PROCEDURE P 6-Bromo-4.4-dimethyl-2-methylene chroman (Intermediate 35)
  • a stirred, cooled (ice bath) solution of 6-bromo-4,4-dimethyl- chroman-2-one available in accordance with U.S. Patent No. 5,399,561 incorporated herein by reference ( 1 g, 3 ,92mmol) in 8mL of anhydrous tetrahydrofuran was treated with a 0.5 M solution of ⁇ -chloro- ⁇ -methylene- [bis(cyclopentadienyl)titanium]dimethylaluminum (Tebbe reagent) in toluene (8.23mL, 4.12mmol).
  • reaction mixture was poured into ice-water mixture containing 50mL of IM sodium hydroxide and extracted with hexane.
  • the hexane extract was washed with brine (xl), filtered over a bed of celite and evaporated in vacuo to an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using hexane as the eluent to afford the title compound (0.74g, 74%) as a clear oil.
  • reaction mixture was then cooled to ambient temperature, diluted with hexane, washed with brine (xl), dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to a residue which was subjected to flash column chromatography over silica gel (230-400 mesh) using hexane as the eluent to obtain the title compound (0.44g, 93%).
  • GENERAL PROCEDURE R 2.2.4.4-Tetramethyl-chroman-6-carboxylic acid (Intermediate 39)
  • a stirred, cooled (-78°C) solution of 6-bromo-2,2,4,4-tetramethyl chroman (1.2g, 4.47mmol) in 15mL of anhydrous tetrahydrofuran was treated with a 1.7M solution of tert-buty 1 lithium solution in pentane ( 5.27mL, 8.9mmol).
  • carbon dioxide generated from dry ice was bubbled into the reaction mixture. The reaction mixture was allowed to warm to ambient temperature.
  • reaction mixture was diluted with ethyl acetate, washed with brine, dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to a residue which was subjected to flash column chromatography over silica gel (230-400 mesh) using ethyl acetate as the eluent to afford the title compound as a white solid (l.lg, 92%).
  • reaction mixture was subjected to flash column chromatography over silica gel (230-400 mesh) using 5-10% ethyl acetate in hexane as the eluent to afford the title compound (0.1 g, 55 %) .
  • 6-Bromo-8-ethyl-2.2.4.4-tetramethyl chroman (Intermediate 46) A stirred, cooled (ice bath) solution of 8-acetyl-6-bromo-2,2,4,4- tetramethyl chroman (Intermediate 45, 0.95g, 3. lmmol) in trifluoroacetic acid ( 1 OmL) was treated with triethy lsilane ( 1 OmL) and the resulting reaction mixture was allowed to warm to ambient temperature and stirred overnight. The volatiles were distilled off in vacuo and the residue was diluted with water and extracted with hexane (x2).
  • 6-Bromo-4.4-dimethyl- 1.2.3.4-tetrahydro-qumoline- 1 -carbaldehyde (Intermediate 50)
  • a solution of 6-bromo-4,4-dimethy 1- 1 ,2,3 ,4-tetrahy droquinoline, available in accordance with United States Patent No. 5,089,509, the specification of which is incorporated herein by reference (1.8g, 7.5mmol) in lOmL of formic acid was refluxed for 3h.
  • the reaction mixture was then cooled to ambient temperature and poured into ice-cold saturated aqueous sodium bicarbonate solution and extracted with diethyl ether (x2).
  • 6-Bromo- 1 -cvclo ⁇ ropyl-4.4-dimethyl- 1.2.3.4-tetrahvdroquinoline (Intermediate 51)
  • a stirred, cooled (0°C) solution of 6-bromo-4,4-dnnethyl- 1,2,3,4- tetrahydro-quinoline- 1 -carbaldehyde (Intermediate 50, 21.8, 6.7mmol) in anhydrous tetrahydrofuran (20mL) under argon was treated with titanium tetra-wopropoxide (2.15mL, 7.39mmol) followed by 3M solution of ethyl magnesium bromide in diethyl ether (5.6mL, 16.8mmol) and the reaction mixture was then heated at 50°C overnight.
  • reaction mixture was then extracted with ether (x2) and dichloromethane (xl) and the combined organic phase was dried over anhydrous magnesium sulfate and evaporated in vacuo to yield a brown solid.
  • the solid was treated with hexane-dichloromethane and filtered to afford 1.7g of product.
  • the mother liquor was evaporated and purified by flash column chromatography on silica gel (230-400 mesh) to afford 2.9g of the title compound as a solid (total 72%).
  • Method A The carboxylic acid was combined with a solution of the desired alcohol and concentrated sulfuric acid (20 to 1 v/v) and the resulting mixture or solution (0.75 to 1.0 M) heated to reflux overnight. The solution was cooled to room temperature, diluted with Et,0, and washed with H 2 0, saturated aqueous NaHC0 3 , and saturated aqueous NaCl before being dried over MgS0 4 . Concentration of the dry solution under reduced pressure afforded the desired carboxylic ester of sufficient purity to be used directly in the next reaction.
  • Method B To a solution (0.67 to 1.0M) of the carboxylic acid in acetone was added 1.1 equivalents of the desired alkyl halide and 1.0 equivalents of solid potassium carbonate. The resulting mixture was heated to reflux for 2h and then allowed to stir at room temperature overnight. The mixture was filtered and the filtrate concentrated under reduced pressure. The product was isolated from the residue by column chromatography using silica gel as the solid phase.
  • Method C A solution (IM) of the carboxylic acid in thionyl chloride was heated at reflux until analysis of a reaction aliquot by IR spectroscopy showed the absence of the aryl carboxylic acid carbonyl band ( 1705 - 16 ⁇ 0 cm "1 ).
  • the solution was cooled to room temperature and concentrated under reduced pressure to give the crude acyl chloride.
  • the acyl chloride was dissolved in CH 2 C1 2 and the resulting solution (0.5 to 0.75M) treated with 1.1 equivalents the desired alcohol and 2.0 equivalents of pyridine. After stirring overnight at room temperature the solution was diluted with Et 2 0 and washed with H 2 0, 10% aqueous HC1, saturated aqueous NaHC0 3 , and saturated aqueous NaCl before being dried over Na ⁇ O,*. Concentration of the dry solution under reduced pressure followed by column chromatography afforded the desired ester.
  • GENERAL PROCEDURE 1 (preparation of Enol ethers): A solution (0.35 M) of the aryl ester in anhydrous THF was cooled to 0 °C and treated with 1.0 equivalents of Tebbe's Reagent ([ ⁇ -chloro- ⁇ - methylene[bis(cyclopentadienyl)titanium]-dimethylaluminum] 0.5 M in toluene). After 30 minutes the solution was warmed to room temperature and stirred for 30 minutes before being carefully added to a 0.1 N NaOH solution at 0 °C. This mixture was treated with hexanes and the solids removed by filtration through a pad of Celite.
  • GENERAL PROCEDURE 2 (cvclopropanation of the enol ethers ) : To a solution (0.3 M) of the enol ether in anhydrous Et 2 0 was added 2.0 equivalent of Et 2 Zn (as a solution in hexanes) and 2.0 equivalents of CH 2 I 2 .
  • Methyl (4-f4-(l-methoxycyclopropyl)-phenylethynyl]-phenyl ⁇ -acetate (Compound 68, General Formula 2) Using General Procedure F; 1 -ethyny l-4-( 1 -methoxycy clopropy 1)- benzene (Intermediate 61, 120.0 mg, 0.56 mmol) and methyl-(4- iodophenyl)-acetate (Reagent B, 154.0 mg, 0.56 mmol) in triethyl amine (6 mL) was treated with copper(I)iodide (35.0 mg, 0.19 mmol) and sparged with argon for 5 minutes.
  • Trimethylsilyl acetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis-(tri ⁇ henylphos ⁇ hine)palladium(II) (66.0 mg, 0.094 mmol). The resulting reaction mixture was heated to 70 °C for 5 days. The title compound (250.0 mg, 98%>) was isolated by chromatography (0 - 3% EtOAc - hexanes) as an orange oil.
  • Ethyl 4-[4-( 1 -isopropoxycvclopropyl)-phenylethvnyl]-benzoate (Compound 71, General Formula 2) Using General Procedure F; 1 -ethynyl-4-( 1 -isopropoxy cyclopropy 1)- benzene (Intermediate 66, 114.0 mg, 0.57 mmol) and ethyl-4-iodo benzoate (Reagent A, 731.0 mg, 0.63 mmol) in triethylamine (8 mL) was treated with copper(I)iodide (36.0 mg, 0.19 mmol) and sparged with argon for 5 minutes.
  • Methyl ( 4- ⁇ 4-( 1 -isopropoxycv clopropyD-phenylethvnyl] -phenyl ⁇ -acetate (Compound 72, General Formula 2) Using General Procedure F ; 1 -ethyny l-4-( 1 -isopropoxy cyclopropy 1)- benzene (Intermediate 66, 95.0 mg, 0.45 mmol) and methyl-(4- iodophenyl)-acetate (Reagent B, 131.0 mg, 0.45 mmol) in triethylamine (6 mL) was treated with copper(I)iodide (30.0 mg, 0.16 mmol) and sparged with argon for 5 minutes.
  • Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis-(triphenyl ⁇ hos ⁇ hine)palladium(II) (37.0 mg, 0.05 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound (150.0 mg, 83%) was isolated by chromatography (0 - 3% EtOAc - hexanes) as a pale-yellow oil.
  • ⁇ NMR (CDC1 3 ) ⁇ : 7.21 (3H, m), 7.09 - 7.01 (6H, m), 4.18 (2H, s), 1.07 (2H, m), 0.79 (2H, m), 0.02 (9H, s).
  • Ethyl 4-[4-( 1 -benzyloxycy clopropyl)-phenylethynyl]-benzoate (Compound 75, General Formula 2) Using General Procedure F ; 1 -ethyny l-4-( 1 -benzy loxy cyclopropy 1)- benzene (Intermediate 71, 60.0 mg, 0.24 mmol) and ethyl-4-iodo benzoate (Reagent A, 72.0 mg, 0.26 mmol) in triethylamine (4 mL) was treated with copper(I)iodide (17.0 mg, 0.09 mmol) and sparged with argon for 5 minutes.
  • Methy ⁇ 4-r4-d -benzyloxycvclo ⁇ ropy1)-phenylethvnyl]- ⁇ henvU-acetate (Compound 76, General Formula 2) Using General Procedure F; 1 -ethyny l-4-(l -benzy loxy cyclopropy 1)- benzene (Intermediate 71, 60.0 mg, 0.20 mmol) and methyl-(4- iodophenyl)-acetate (Reagent B, 66.0 mg, 0.24 mmol) in triethylamine (5 mL) was treated with co ⁇ per(I)iodide (15.0 mg, 0.08 mmol) and sparged with argon for 5 minutes.
  • Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis- (tri ⁇ henylphosphine)palladium(II) (70.0 mg, 0.05 mmol).
  • the resulting reaction mixture was heated to 70 °C for 5d.
  • the title compound (300.0 mg, 89%>) was isolated by chromatography (0 - 2%> EtOAc - hexanes).
  • ⁇ NMR (CDCI 3 ) ⁇ : 7.34-7.13 (8H, m), 4.24 (2H, s), 2.52 (3H, s), 1.20 (2H, m), 0.88 (2H, m), 0.25 (9H, s).
  • Ethyl 4-r4- ( l-benzylo ⁇ ycvclo ⁇ ro ⁇ yl)-3-methyl-phenylethvnvn-benzoate (Compound 79, General Formula 2) Using General Procedure F; l-ethynyl-4-(l -benzy loxy cyclopropy l)-3- methyl-benzene (Intermediate 76, 90.0 mg, 0.34 mmol) and ethyl-4-iodo benzoate (Reagent A, 95.0 mg, 0.34 mmol) in triethylamine (6 mL) was treated with co ⁇ er(I)iodide (23.0 mg, 0.12 mmol) and sparged with argon for 5 minutes.
  • Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis- (triphenylphos ⁇ hine) ⁇ alladium(II) (70.0 mg, 0.1 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound (250.0 mg, 91%) was isolated by chromatography (0 - 3% EtOAc - hexanes).
  • Ethyl 4-[4- ( l-isopropoxycyclopropyl)-3-methyl-phenylethynyl]-benzoate (Compound 83, General Formula 2) Using General Procedure F ; 4-ethyny 1- 1 -( 1 -isopropoxy cyclopropy 1)- 3 -methyl-benzene (Intermediate 81, 80.0 mg, 0.13 mmol) and ethyl-4-iodo benzoate (Reagent A, 100.0 mg, 0.36 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (25.0 mg, 0.13 mmol) and sparged with argon for 5 minutes.
  • Meth y ⁇ 4-[4-(l-isopropoxycvclo ⁇ ropy1)-3-methyl-phenylethynyl]- ⁇ heiryri I acetate (Compound 84, General Formula 2) Using General Procedure F; 1 -ethyny l-4-(l -isopropoxy cyclopropy 1)- 3-methyl-benzene (Intermediate 81, 100.0 mg, 0.47 mmol) and methyl-(4- iodo ⁇ henyl)-acetate (Reagent B, 129.0 mg, 0.45 mmol) in triethylamine (6 mL) was treated with co ⁇ er(I)iodide (30.0 mg, 0.16 mmol) and sparged with argon for 5 minutes.
  • Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis- (triphenylphosphine)palladium(II) (63.0 mg, 0.09 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound (220.0 mg, 81 %>) was isolated by chromatography ( 1 -2%> EtOAc - hexanes) .
  • Ethyl 4-[4-[l-(2.2-dimethyl ⁇ ropyloxy)-cyclo ⁇ ropyl]-3-methyl- phenylethvnyll-benzoate (Compound 87, General Formula 2) Using General Procedure F ; 4-ethynyl- 1 -[1 -(2,2-dimethy lpropy loxy )- cyclopropyl]-3-methyl-benzene (Intermediate 85, 75.0 mg, 0.31 mmol) and ethyl-4-iodo benzoate (Reagent A, 86.0 mg, 0.31 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (21.0 mg, 0.11 mmol) and sparged with argon for 5 minutes.
  • Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis- (triphenylphosphine)palladium(II) (50.0 mg, 0.07 mmol).
  • the resulting reaction mixture was heated to 70 °C for 5d.
  • Ethyl 4- [4-( 1 -benzy loxy cyclopropy l)-3 -ethy 1-pheny lethyny 1] -benzoate (Compound 91, General Formula 2) Using General Procedure F ; 1 -ethyny l-4-( 1 -benzy loxy cyclopropy l)-3 - ethyl-benzene (Intermediate 90, 90.0 mg, 0.33 mmol) and ethyl-4-iodo benzoate (Reagent A, 100.0 mg, 0.36 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (21.0 mg, 0.11 mmol) and sparged with argon for 5 minutes.
  • Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis- (tri ⁇ henylphosphine)palladium(II) (75.0 mg, 0.11 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound (320.0 mg, 99%) was isolated by chromatography (0 - 2% EtOAc - hexanes) as an orange oil.
  • Ethyl 4- [4-( 1 -isopropoxy cyclopropy l)-3 -ethy 1-pheny lethyny 1] -benzoate (Compound 95, General Formula 2) Using General Procedure F ; 4-ethynyl- 1 -( 1 -isopropoxy cyclopropy 1)- 3 -ethyl-benzene (Intermediate 95, 108.0 mg, 0.47 mmol) and ethyl-4-iodo benzoate (Reagent A, 130.0 mg, 047 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (30.0 mg, 0.16 mmol) and sparged with argon for 5 minutes .
  • Methyl l4-[4-(l-isopropoxycvclo ⁇ ropyl)-3-ethyl-phenylethvnyl]-phenv - acetate (Compound 96, General Formula 2) Using General Procedure F; 1 -ethyny l-4-(l -isopropoxy cyclopropyl)- 3-ethyl-benzene (Intermediate 95, 130.0 mg, 0.57 mmol) and methyl-(4- iodophenyl)-acetate (Reagent B, 157.0 mg, 0.57 mmol) in triethylamine (5 mL) was treated with cop ⁇ er(I)iodide (36.0 mg, 0.19 mmol) and sparged with argon for 5 minutes.
  • Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis-(triphenylphosphine)palladium(II) (38.0 mg, 0.05 mmol).
  • the resulting reaction mixture was heated to 95 °C for 5d.
  • the title compound 200.0 mg (99%>), was isolated by chromatography (0 - 2%o EtOAc - hexanes) as an orange oil.
  • Ethyl 4-[4- ( l-ethoxycvclo ⁇ ropyl)-3-isopro ⁇ vl- ⁇ henv1ethvnyl]-benzoate (Compound 99, General Formula 2) Using General Procedure F; 1-(1 -ethoxy cyclopro ⁇ yl)-4-ethynyl-2- isopropylbenzene (Intermediate 103, 50.0 mg, 0.22 mmol) and ethyl-4-iodo benzoate (Reagent A, 60.0 mg, 0.22 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (14.0 mg, 0.07 mmol) and sparged with argon for 5 minutes.
  • Methyl l4-f4-(l-ethoxycvclopro ⁇ yl)-3-iso ⁇ ro ⁇ yl-phenylethynyl]-phenyl ⁇ - acetate (Compound 100, General Formula 2) Using General Procedure F ; 1 -( 1 -ethoxy cyclopropy l)-4-ethyny 1-2- isopropylbenzene (Intermediate 103, 120.0 mg, 0.52 mmol) and methyl-(4- iodophenyl)-acetate (Reagent B, 150.0 mg, 0.52 mmol) in triethylamine (8 mL) was treated with copper(I)iodide (32.0 mg, 0.17 mmol) and sparged with argon for 5 minutes.
  • Ethyl 2-tgrt-butyl-4-triisopropylsil an yloxy-benzoate (Intermediate 106)
  • Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis-(triphenyl ⁇ hosphine)palladium(II) (40.0 mg, 0.06 mmol).
  • the resulting reaction mixture was heated to 95 °C for 18 hours.
  • the title compound, 215.0 mg (96%») was isolated by chromatography (0 - 2% EtOAc - hexanes) as an orange oil.
  • Ethyl 4-[4- ( l-etho ⁇ y cvclopro ⁇ yl)-3-tgrt-butyl-phenylethynyl]-benzoate (Compound 103, General Formula 2) Using General Procedure F ; 1 -( 1 -ethoxy cyclopropy l)-4-ethyny 1-2- t g rt-butylbenzene (Intermediate 112, 70.0 mg, 0.30 mmol) and ethyI-4-iodo benzoate (Reagent A, 85.0 mg, 0.30 mmol) in triethylamine (5 mL) was treated with copper(I)iodide ( 19.0 mg, 0.01 mmol) and sparged with argon for 5 minutes.
  • Trimethylsilyl acetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis(tri ⁇ henyl ⁇ hosphine) ⁇ alladium(II) (48.0 mg, 0.06 mmol).
  • the resulting reaction mixture was heated to 70 °C for 5days.
  • the title compound (80.0 mg, 75%) was isolated by chromatography (0 - 10% EtOAc - hexanes) as an orange oil.
  • Ethyl 4-[4-( 1 -propylamino-cy clopropy lVphenylethynylj-benzoate (Compound 107, General Formula 2) Using General Procedure F; [l-(4-ethynylphenyl)-cyclopropyl]- propylamine (Intermediate 120, 38.0 mg, 0.19 mmol) and ethyl-4-iodo benzoate (Reagent A, 58.0 mg, 0.21 mmol) in triethyl amine (6 mL) was treated with co ⁇ per(I)iodide (8.0 mg, 0.04 mmol) and sparged with argon for 5 minutes.
  • Trimethylsilyl acetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis(triphenylphosphine)palladium(II) (35.0 mg, 0.05 mmol).
  • the resulting reaction mixture was heated to 70 °C for 5d.
  • the title compound was isolated by chromatography (0 - 3%> EtOAc - hexanes).
  • Ethyl 4-r4- ( 1 -di ⁇ ro ⁇ ylamino-cvclo ⁇ ro ⁇ v1)- ⁇ heny1ethynyl]-benzoate (Compound 109, General Formula 2) Using General Procedure F; [l-(4-ethynylphenyl)-cyclopropyl]- dipropylamine (Intermediate 123, 34.0 mg, 0.16 mmol) and ethyl-4-iodo benzoate (Reagent A, 59.0 mg, 0.21 mmol) in triethyl amine (6 mL) was treated with co ⁇ er(I)iodide (13.0 mg, 0.07 mmol) and sparged with argon for 5 minutes.
  • Trimethylsilyl acetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis(triphenylphosphine)palladium(II) (38.0 mg, 0.05 mmol).
  • the resulting reaction mixture was heated to 70 °C for 5d.
  • Ethyl 4-[4-(l-benzylamino-cvclopropyl -phenylethynyl]-benzoate (Compound 111, General Formula 2) Using General Procedure F; benzy l-[ 1 -(4-ethynyl ⁇ heny 1)- cyclopropyl] -amine (Intermediate 127, 65.0 mg, 0.27 mmol) and ethyl-4- iodo benzoate (Reagent A, 68.0 mg, 0.27 mmol) in triethyl amine (8 mL) was treated with copper(I)iodide (16.0 mg, 0.08 mmol) and sparged with argon for 5 minutes.
  • Ethyl 4-[4-(l-dibenzylamino-cyclopropyl)-phenylethynyl]-benzoate (Compound 113, General Formula 2) Using General Procedure F; dibenzyl-[l -(4-ethynyl ⁇ henyl)- cyclopropyl]-amine (Intermediate 129, 40.0 mg, 0.12 mmol) and ethyl-4- iodo benzoate (Reagent A, 60.0 mg, 0.22 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (8.0 mg, 0.04 mmol) and sparged with argon for 5 minutes.
  • Benzyl-[l-(4-bromophenyl)-cyclopropyl]-methylamine (Intermediate 130) To a solution of benzyl-[l-(4-bromophenyl)-cyclopropyl]-amine (Intermediate 124, 100.0 mg, 0.33 mmol) in 5 mL of acetone was added K 2 C0 3 (91 mg, 0.66 mmol) and iodomethane (2.28 g, 16.1 mmols). The resulting mixture was stirred at 25 °C for 20 hours, diluted with Et 2 0, and washed with H 2 0 and saturated aqueous NaCl.
  • Benzyl-[l-(4-ethynylphenyl)-cyclopropyl]-methylamine (Intermediate 132) Using General Procedure E; benzyl- [ 1 -(4-trimethy lsilany lethyny 1- phenyl)-cyclopropyl]-methylamine (Intermediate 131, 80.0 mg, 0.24 mmol) in methanol (5 mL) was treated with potassium carbonate (80.0 mg, 0.59 mmol) and stirred overnight at ambient temperature. The crude alkyne (60 mg, 99%o) was used directly in the next reaction.
  • Ethyl 4-f4-[l-(benzyl-methylamino)-cvclopropy1]- ⁇ henylethvny -benzoate (Compound 115, General Formula 2) Using General Procedure F; benzy l-[l-(4-ethynylphenyl)- cyclopropyl]-methylamine (Intermediate 132, 70.0 mg, 0.28 mmol) and ethyl-4-iodo benzoate (Reagent A, 77.0 mg, 0.28 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (18.0 mg, 0.10 mmol) and sparged with argon for 5 minutes.
  • Ethyl 4-(4-hvdroxymethy 1-3 -methy 1-pheny lethvnvD-benzoate (Compound 117, General Formula 6) Using General Procedure F; (4-ethynyl-2-methy 1-pheny l)-methanol (Intermediate 136, 100.0 mg, 0.44 mmol) and ethyl-4-iodo benzoate (Reagent A, 125.0 mg, 0.45 mmol) in triethyl amine (4 mL) was treated with copper(I)iodide (29 mg, 0.15 mmol) and sparged with argon for 5 minutes.
  • Ethyl 4-(4-bromomethy 1-3 -methy 1-pheny lethynyD-benzoate (Intermediate 137) A solution of ethyl 4-(4-hy droxymethy 1-3 -methy 1-pheny lethynyl)- benzoate (Compound 117, 130.0 mg, 0.44 mmol) and triphenylphosphine (150.0 mg, 0.57 mmol) in 5 mL CH 2 C1 2 was cooled to 0 °C and N- bromosuccinimide (101.0 mg, 0.57 mmol) was added in 5 portions over 20 minutes. The solution was warmed to 25 °C and stirred for 17 hours.
  • Trimethylsilyl acetylene (1.00 g, 10.6 mmols) was then added followed by dichlorobis(triphenylphosphine)palladium(II) (66.0 mg, 0.09 mmol).
  • the resulting reaction mixture was heated to 95 °C for 20 hours.
  • the solution was cooled to room temperature and concentrated under reduced pressure.
  • the title compound (200.0 mg, 78%>) was isolated by chromatography (0-25%> EtOAc-hexanes) as an orange oil.
  • Ethyl 4-[4-(tgrt-butyl-dimethyl-silanyloxymethyl)-3-isopropyl- pheny lethyny 1] -benzoate (Intermediate 153) Using General procedure F; tgrt-butyl-(4-ethynyl-2-isopropyl- benzyloxy)-dimethyl-silane (Intermediate 152, 300.0 mg, 1.04 mmols) and ethyl-4-iodo benzoate (Reagent A, 287.0 mg, 1.04 mmols) in triethylamine (8mL) was treated with copper(I)iodide (50.0 mg, 0.26 mmol) and sparged with argon for 5 minutes.
  • Ethyl [4-(4-hy droxymethy 1-3 -isopropy 1-pheny lethyny D-benzoate (Compound 122, General Formula 6)
  • ethyl 4-[4-(tgrt-butyl-dimethyl-silanyloxymethyl)-3- isopropyl-phenylethynylj-benzoate (Intermediate 153, 310.0 mg, 0.71 mmol) in 4 mL THF at 0 °C was added tetrabutylammonium fluoride (371.0 mg, 1.42 mmols; 1.4 mL of a IM solution in THF).
  • Methyl [4-(4-hydroxymethyl-3-isopropyl-phenylethynyl)-phenyl]-acetate (Compound 123, General Formula 6) To a solution of methyl (4-[4-(tgrt-butyl-dimethyl-silanyloxymethyl)- 3-isopropyl-phenylethynyl]-phenyl ⁇ -acetate (Intermediate 154, 288.0 mg, 0.66 mmol) in 5 mL THF at 0 °C was added tetrabutylammonium fluoride (471.0 mg, 1.80 mmols; 1.8 mL of a IM solution in THF).
  • Ethyl [4-(4-bromomethy 1-3 -isopropy 1-pheny lethyny D-benzoate (Intermediate 155)
  • a solution of ethyl [4-(4-hydroxymethyl-3-isopropyl-phenylethynyl)- benzoate (Compound 122, 200.0 mg, 0.62 mmol) and triphenylphosphine (211.0 mg, 0.81 mmol) in 5 mL CH 2 C1 2 was cooled to 0 °C and N- bromosuccinimide (144.0 mg, 0.81 mmol) was added in 5 portions over 20 minutes. The solution was warmed to 25 °C and stirred for 17 hours.
  • Methyl [4-(4-bromomethy 1-3 -isopropy 1-pheny lethyny D-pheny 1] -acetate (Intermediate 156) A solution of methyl [4-(4-hydroxymethyl-3-isopropyl- phenylethynyl)-phenyl]-acetate (Compound 123, 180.0 mg, 0.56 mmol) and triphenylphosphine (190.0 mg, 0.73 mmol) in 5 mL CH 2 C1 2 was cooled to 0 °C and N-bromosuccinimide (130.0 mg, 0.73 mmol) was added in 5 portions over 20 minutes. The solution was warmed to 25 °C and stirred for 17 hours.
  • Ethyl [4-(4-imidazol- 1 -yl-methyl-3-isopropyl-phenylethynyl)-phenyl]- benzoate (Compound 124, General Formula 6)
  • a solution of ethyl [4-(4-bromomethy 1-3 -isopropy 1-pheny lethyny 1)- benzoate (Intermediate 155, 120.0 mg, 0.31 mmol) and 1 -acetylimidazole (36.0 mg, 0.33 mmol) in 5 mL CH 3 CN was heated at 65 °C for 4 hours and then at 55 °C for 16 hours.
  • Methyl [4-(4-imidazol- 1 -y 1-methy 1-3 -isopropy 1-pheny lethyny D-phenyl] - acetate (Compound 125, General Formula 6)
  • a solution of methyl [4-(4-bromomethy 1-3 -isopropy 1-pheny lethyny 1)- phenyl] -acetate (Intermediate 156, 72.0 mg, 0.19 mmol) and 1- acetylimidazole (22.0 mg, 0.20 mmol) in 5 mL CH 3 CN was heated at 65 °C for 8h and then at 55 °C for 16 hours.
  • Trimethylsilylacetylene (1.04 g, 10.6 mmols) was then added followed by dichlorobis- (triphenylphosphine)palladium(II) (162.0 mg, 0.23 mmol).
  • the resulting reaction mixture was heated to 70 °C for 5 days.
  • the title compound (650.0 mg, 98%o) was isolated by chromatography (l-4%> EtOAc - hexanes).
  • Ethyl 4- ⁇ 4-[(cyclopropyl-ethyl-amino)-methyl]-3-methyl-phenylethynyl>- benzoate (Compound 128, General Formula 6) Using General Procedure F; cy clopropy l-ethyl-(4-ethynyl-2-methyl- benzyl)-amine (Intermediate 161, 190.0 mg, 0.89 mmol) and ethyl-4-iodo benzoate (Reagent A, 245.0 mg, 0.89 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (56.0 mg, 0.30 mmol) and sparged with argon for 15 minutes.
  • Methyl (4-f4-[(cyclopropyl-ethyl-amino)-methyl1-3- ⁇ nethyl-phenylethvnyl - phenyD-acetate) (Compound 129, General Formula 6) Using General Procedure F; cy clopropy l-ethyl-(4-ethynyl-2-methyl- benzyl)-amine (Intermediate 161, 300.0 mg, 1.41 mmols) and methyl-(4- iodophenyl)-acetate (Reagent B, 388.0 mg, 1.41 mmols) in triethylamine (8 mL) was treated with copper(I)iodide (67.0 mg, 0.35 mmol) and sparged with argon for 15 minutes.
  • Ethyl ⁇ 4-(4-cyclopropylaminomethyl-3-isopropyl-phenylethynyl ⁇ -benzoate (Compound 132, General Formula 6)
  • a solution of ethyl [4-(4-bromomethy 1-3 -isopropy 1-pheny lethyny 1)- benzoate (Intermediate 155, 110.0 mg, 0.29 mmol) and cyclopropylamine (420.0 mg, 7.4 mmols) in EtOH (5 mL) was stirred at 25 °C for 6 hours and then concentrated under reduced pressure. The residue was dissolved in EtOAc and washed with saturated aqueous NaHC0 3 , H 2 0 and saturated aqueous NaCl.
  • Ethyl 4- ⁇ 4- [(cyclopropy 1-ethy l-amino)-methyl]-3 -isopropy 1-pheny lethyny 1 ⁇ - benzoate (Compound 133, General Formula 6)
  • ethyl ⁇ 4-(4-cyclopropylaminomethyl-3-isopropyl- pheny lethyny 1 ⁇ -benzoate (Compound 132, 103.0 mg, 0.29 mmol) in 6 mL of acetone was added ethyl iodide (67.0 mg, 0.43 mmol) and K 2 C0 3 (79.0 mg, 0.57 mmol).

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Abstract

Compounds having the Formulas 1 through 8, wherein the symbols have the meaning defined in the specification are inhibitors of the cytochrome P450RAI (retinoic acid inducible) enzyme, and are used for treating diseases responsive to treatment by retinoids.

Description

COMPOUNDS HAVING ACTIVITY AS INHIBITORS OF CYTOCHROME P450RAI BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directed to novel compounds which inhibit the enzyme cytochrome P450RAI. More particularly, the present invention is directed to compounds many of which are derivatives of phenylacetic or heteroarylacetic acid, and which inhibit the enzyme cytochrome P450RAI. Several compounds of the invention that have an inhibitory effect on the enzyme cytochrome P450RAI include a cyclopropyl aryl, cyclopropyl- heteroaryl, cyclopropylaminoaryl, or (1-imidazolyl) methylaryl structure. BACKGROUND ART Compounds which have retinoid-like activity are well known in the art, and are described in numerous United States and other patents and in scientific publications. It is generally known and accepted in the art that retinoid-like activity is useful for treating animals of the mammalian species, including humans, for curing or alleviating the symptoms and conditions of numerous diseases and conditions. In other words, it is generally accepted in the art that pharmaceutical compositions having a retinoid-like compound or compounds as the active ingredient are useful as regulators of cell proliferation and differentiation, and particularly as agents for treating skin-related diseases, including, actinic keratoses, arsenic keratoses, inflammatory and non-inflammatory acne, psoriasis, ichthyoses and other keratinization and hyperproliferative disorders of the skin, eczema, atopic dermatitis, Darriers disease, lichen planus, prevention and reversal of glucocorticoid damage (steroid atrophy), as a topical anti-microbial, as skin anti-pigmentation agents and to treat and reverse the effects of age and photo damage to the skin. Retinoid compounds are also useful for the prevention and treatment of cancerous and precancerous conditions, including, premalignant and malignant hyperproliferative diseases such as cancers of the breast, skin, prostate, cervix, uterus, colon, bladder, esophagus, stomach, lung, larynx, oral cavity, blood and lymphatic system, metaplasias, dysplasias, neoplasias, leukoplakias and papillomas of the mucous membranes and in the treatment of Kaposi's sarcoma. In addition, retinoid compounds can be used as agents to treat diseases of the eye, including, without limitation, proliferative vitreoretinopathy (PVR), retinal detachment, dry eye and other corneopathies, as well as in the treatment and prevention of various cardiovascular diseases, including, without limitation, diseases associated with lipid metabolism such as dyslipidemias, prevention of post-angioplasty restenosis and as an agent to increase the level of circulating tissue plasminogen activator (TPA). Other uses for retinoid compounds include the prevention and treatment of conditions and diseases associated with human papilloma virus (HPV), including warts and genital warts, various inflammatory diseases such as pulmonary fibrosis, ileitis, colitis and Krohn's disease, neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and stroke, improper pituitary function, including insufficient production of growth hormone, modulation of apoptosis, including both the induction of apoptosis and inhibition of T-Cell activated apoptosis, restoration of hair growth, including combination therapies with the present compounds and other agents such as MinoxidilR, diseases associated with the immune system, including use of the present compounds as immunosuppressants and immunostimulants, modulation of organ transplant rejection and facilitation of wound healing, including modulation of chelosis. Retinoid compounds have relatively recently been also discovered to be useful for treating type II non-insulin dependent diabetes mellitus (NIDDM). Several compounds having retinoid-like activity are actually marketed under appropriate regulatory approvals in the United States of America and elsewhere as medicaments for the treatment of several diseases responsive to treatment with retinoids. Retinoic acid (RA) itself is a natural product, biosynthesized and present in a multitude of human and mammalian tissues and is known to play an important rule in the regulation of gene expression, tissue differentiation and other important biological processes in mammals including humans. Relatively recently it has been discovered that a catabolic pathway in mammals, including humans, of natural retinoic acid includes a step of hydroxylation of RA catalyzed by the enzyme Cytochrome P450RAI (retinoic acid inducible). Several inhibitors of CP450RAI have been synthesized or discovered in the prior art, among the most important ones ketoconazole, liarozole and Rl 16010 are mentioned. The chemical structures of these prior art compounds are provided below. It has also been noted in the prior art, that administration to mammals, including humans, of certain inhibitors of CP- 450RAI results in significant increase in endogeneous RA levels, and further that treatment with CP450RAI inhibitors, for example with liarozole, gives rise to effects similar to treatment by retinoids, for example amelioration of psoriasis.
1
2
Figure imgf000006_0001
LIAROZOLE
The following publications describe or relate to the above- summarized role of CP450RAI in the natural catabolism of RA, to inhibitors of CP-450RAI and to in vitro and in vivo experiments which demonstrate that inhibition of CP450RAI activity results in a increases endogeneous RA levels and potential therapeutic benefits: Kuijpers, et al, "The effects of oral liarozole on epidermal proliferation and differentiation in severe plaque psoriasis are comparable with those of acitretin", British Journal of Dermatology. (1998) 139: pp 380-389. Kang, et al, "Liarozole Inhibits Human Epidermal Retinoid Acid 4- Hydroxylase Activity and Differentially Augments Human Skin Responses to Retinoic Acid and Retinol In Vivo", The Journal of Investigative Dermatology. (August 1996) Vol. 107, No. 2: pp 183-187. Van Wauwe, et al. , "Liarozole, an Inhibitor of Retinoic Acid Metabolism, Exerts Retinoid-Mimetic Effects in Vivo", The Journal of Pharmacology and Experimental Therapeutics. (1992) Vol. 261, No 2: pp 773-779. De Porre, et al., "Second Generation Retinoic Acid Metabolism Blocking Agent (Ramba) Rl 16010: Dose Finding in Healthy Male Volunteers", University of Leuven, Belgium, pp 30. Wauwe, et al, "Ketoconazole Inhibits the in Vitro and in Vivo Metabolism of All-7 α«5-Retinoic Acid", The Journal of Pharmacology and Experimental Therapeutics. (1988) Vol. 245, No. 2: pp 718-722. White, et al, "cDNA Cloning of Human Retinoic Acid-metabolizing Enzyme (hP450RAI) Identifies a Novel Family of Cytochromes P450 (CYP26)*", The Journal of Biological Chemistry. (1997) Vol. 272, No. 30, Issue of July 25 pp 18538-18541. Hanzlik, et al, "Cyclopropylamines as Suicide Substrates for Cytochromes P450RAI", Journal of Medicinal Chemistry (1979), Vol. 22, No. 7, pp 759- Ortiz de Montellano, "Topics in Biology - The Inactivation of Cytochrome P450RAI", Annual Reports in Medicinal Chemistry. (1984), Chapter 20, pp 201-210. Hanzlik, et al. "Suicidal Inactivation of Cytochrome P450RAI by Cyclopropylamines> Evidence for Cation-Radical Intermediates", J. Am. Chem. Soc. (1982), Vol. 104, No. 107, pp. 2048-2052. The present invention provides several new chemical compounds which act as inhibitors of CP450RAI, and as such potentially provide therapeutic benefit in the treatment or prevention of the diseases and conditions which respond to treatment by retinoids and or which in healthy mammals, including humans, are controlled by natural retinoic acid. The perceived mode of action of these compounds is that by inhibiting the enzyme CP450RAI that catabolyzes natural RA, endogenous RA level is elevated to a level where desired therapeutic benefits are attained. The chemical structures of the compounds of the invention are summarized by Formulas 1 through 8 which are provided in the Summary Section of this application for patent. Based on these chemical structures the following art is of interest as background to the novel structures. U.S. Patent Nos. 5,965,606; 6,025,388; 5,773,594; 5,675,024; 5,663,347; 5,045,551; 5,023,341; 5,264,578; 5,089,509; 5,616,712; 5,134,159; 5,346,895; 5,346,915; 5,149,705; 5,399,561; 4,980,369; 5,015,658; 5,130,335; 4,740,519; 4,826,984; 5,037,825; 5,466,861; WO 85/00806; EP 0 130,795; DE 3316932; DE 3708060; Dawson, et al "Chemistry and Biology of Synthetic Retinoids", published by CRC Press. Inc., (1990), pages 324-356; are of interest to compounds of Formula 1. U.S. Patent Nos. 5,965,606; 5,534,641; 5,663,357; 5,013,744; 5,326,898; 5,202,471; 5,391,753; 5,434,173; 5,498,795; 4,992,468; 4,723,028; 4,855,320; 5,563,292; WO 85/04652; WO 91/16051 ; WO 92/06948; EP 0 170 105; EP 0286 364; EP 0 514 269; EP 0 617 020; EP 0 619 116; DE 3524199; Derwent JP6072866; Dawson, et al. "Chemistry and Biology of Synthetic Retinoids", published by CRC Press. Inc., 1990, pages 324-356; are of interest to compounds of Formula 2. Dawson, et al. "Chemistry and Biology of Synthetic Retinoids", published by CRC Press. Inc.. (1990), pages 324-356; is of interest to compounds of Formula 3. U.S. Patent Nos. 5,965,606; 5,773,594; 5,675,024; 5,663,347; 5,023,341; 5,264,578; 5,089,509; 5,149,705; 5,130,335; 4,740,519; 4,826,969; 4,833,240; 5,037, 825; 5,466,861; 5,559,248; WO 85/00806; WO 92/06948; WO 95/04036; WO 96/05165; EP 0 098 591; EP 0 170 105; EP 0 176 034; EP 0 253,302; EP 0 303 915; EP 0 514 269; EP 0 617 020; EP 0 619 116; EP 0 661 259; DE 3316932; DE 3602473; DE 3715955; UK application GB 2190378; Eyrolles et al, J. Med. Chem.. (1994), 37, 1508- 1517; Graupner et al. Biochem. and Biophysical Research Communications. (1991), 1554-1561; Kagechika, et al, J. Med. Chem.. (1988), 31, 2182-2192; Dawson, et al. "Chemistry and Biology of Synthetic Retinoids", published by CRC Press. Inc.. (1990), pages 324-356; are of interest to compounds of Formula 4. U.S. Patent Nos. 5,965,606; 6,025,388; 5,534,641; 5,663,357; 5,013,744; 5,326,898; 5,202,471; 5,391,753; 5,434,173; 5,498,795; 4,992,468; 5,723,028; 4,855,320; 5,563,292; WO 85/04652; WO 91/16051; WO 92/06948; EP 0 170 105; EP 0 286 364; EP 0 514 269; EP 0 617 020; EP 0 619 116; DE 3524199; Derwent JP6072866; Dawson, et al. "Chemistry and Biology of Synthetic Retinoids", published by CRC Press. Inc.. (1990), pages 324-356; are of interest to compounds of Formula 5. U.S. Patent Nos. 5,965,606; 6,025,388; 5,534,641; 5,663,357; 5,013,744; 5,326,898; 5,202,471; 5,391,753; 5,434,173; 5,498,795; 4,992,468; 5,723,028; 4,855,320; 5,563,292; WO 85/04652; WO 91/16051; WO 92/06948; EP 0.170 105; EP 0 286 364; EP 0 514 269; EP 0 617 020; EP 0 619 116; DE 3524199; Derwert JP6072866; Dawson, et al. "Chemistry and Biology of Synthetic Retinoids", published by CRC Press. In , (1990), pages 324-356; is of interest to compounds of Formula 6. U.S. Patent Nos. 6,048,873; 5,663,347; 5,045,551; 5,023,341; 5,739,338; 5,264,578; 5,089,509; 5,616,712; 5,399,561; 4,826,984; 5,037,825; EP 0 130 795; DE 3316932; Dawson, et al. "Chemistry and Biology of Synthetic Retinoids", published by CRC Press. Inc.. ( 1990), pages 324-356; are of interest to compounds of Formula 7. U.S. Patent Nos. 5,965,606; 5,998,471; 5,773,594; 5,675,024; 5,663,347; 5,045,551; 5,023,341; 5,264,578; 5,134,159; 5,346,895; 5,346,915; 5,149,705; 5,399,561; 4,980,369; 5,130,335; 4,326,055; 4,539,154; 4,740,519; 4,826,969; 4,826,984; 4,833,240; 5,037,825; 5,466,861; 5,559,248; WO 85/00806; WO 92/06948; WO 95/04036; WO 96/05165; EP 0 098 591; EP 0 130 795; EP 0 176 034; EP 0 253 302; EP 0 303 915; EP 0 514 269; EP 0 617 020; EP 0 619 116; EP 0 661 259; DE 3316932; DE 3602473; DE 3708060; DE 3715955; U.K. application GB 2190378; Eyrolles et al, J. Med. Chem.. (1994), 37 1508, 1517; Graupner et al, Biochem. and Biophysical Research Communications. (1991) 1554-1561; Kagechika, et al, J. Med. Chem.. (1988), 31, 2182- 2192; Dawson, et al. "Chemistry and Biology of Synthetic Retinoids", published by CRC Press. Inc.. (1990), pages 324-356; are of interest to compounds of Formula 8. SUMMARY OF THE INVENTION The present invention relates to compounds of Formula 1
Figure imgf000011_0001
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; X is O, S or NR where R is H, alkyl of 1 to 6 carbons or benzyl; Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, Cl, Br, or I;
Z is -C≡C-,
-(CR^CR^JJ, where n' is an integer having the value 1 - 5, -CO-NRr, NRrCO-; -CO-0-, -O-CO-,
Figure imgf000011_0002
NRrCS-, -CO-S-, -S-CO-, -N=N-; Rt is independently H or alkyl of 1 to 6 carbons; p is an integer having the values of 0 to 4; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, CF3, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 2; R4 is independently H, alkyl of 1 to 6 carbons, or F; fluorosubstituted alkyl of 1 to 6 carbons, or halogen; o is an integer having the values of 0 to 2; n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(Ci_6-alkyl), or a cation of a pharmaceutically acceptable base. The present invention also relates to compounds of Formula 2
Figure imgf000012_0001
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; X is O, S or NR where R is H, alkyl of 1 to 6 carbons or benzyl; Z is -C≡C-, -(CR1=CR1)n> where n' is an integer having the value 1 - 5, -CO-NRΓ, NRrCO-, -CO-O-, -O-CO-, -CS-NRr, NRrCS-, -CO-S-, -S-CO-, -N=N-; j is independently H or alkyl of 1 to 6 carbons; p is an integer having the values of 0 to 4; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 4; Rg is H, alkyl of 1 to 6 carbons, fluorosubstituted alkyl of 1 to 6 carbons, benzyl, or lower alkyl or halogen substituted benzyl; n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -C^OCC^-alkyl), or a cation of a pharmaceutically acceptable base.
The present invention relates to compounds of Formula 3
Figure imgf000014_0001
Formula 3
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 1 to 6 carbons, Cl, Br, or I;
Z is -C≡C-,
-(CR^CR^n, where n' is an integer having the value 1 - 5, -CO-NRr, NRΓCO-5 -CO-0-, -0-CO-, -CS-NRr, NRrCS-, -CO-S-, -S-CO-, -N=N-; Rj is independently H or alkyl of 1 to 6 carbons; p is an integer having the values of 0 to 5 ; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 2; R4 is independently H, alkyl of 1 to 6 carbons, or F; fluorosubstituted alkyl of 1 to 6 carbons, or halogen; o is an integer having the values of 0 to 4; n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(C,_6-alkyl), or a cation of a pharmaceutically acceptable base.
The present invention also relates to compounds of Formula 4
Figure imgf000016_0001
Formula 4
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; Xj is 1 -imidazolyl, or lower alkyl or halogen substituted 1- imidazolyl, OR, SR, NRR6 where R is H, alkyl of 1 to 6 carbons or benzyl;
Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, Cl, Br, or I; Z is -C≡C-,
-(CRι=CRι)n> where n' is an integer having the value 1 - 5, -CO-NRr,
NRΓCO-,
-CO-0-, -0-CO-,
Figure imgf000016_0002
NRrCS-, -CO-S-, -S-CO-, -N=N-; Rj is independently H or alkyl of 1 to 6 carbons; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 2; R4 is independently H, alkyl of 1 to 6 carbons, or F; fluorosubstituted alkyl of 1 to 6 carbons, or halogen; o is an integer having the values of 0 to 4; R6 is H, lower alkyl, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons; n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(C2_6-alkyl), or a cation of a pharmaceutically acceptable base, with the proviso that when Y is H, A is phenyl and Xt is OH then n is 1 to 4. The present invention also relates to compounds of Formula 5
Figure imgf000018_0001
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; X is O, S or NR where R is H, alkyl of 1 to 6 carbons, Cμ6- trialkylsilyl or benzyl; Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, Cl, Br, or I;
Z is -C≡C-,
-(CRi-CRj).,. where n' is an integer having the value 1 - 5,
-CO-NRr,
NRΓCO-,
-CO-0-,
-0-CO-,
-CS-NRr,
NRrCS-,
-CO-S-,
-S-CO-,
-N=N-; Rj is independently H or alley 1 of 1 to 6 carbons; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 3 ; R7 is H, alkyl of 1 to 6 carbons, cycloalkyl of 3 to 6 carbons or lower alkyl substituted cycloalkyl of 1 to 6 carbons; n is an integer having the values of 1 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(C1.6-alkyl), or a cation of a pharmaceutically acceptable base. The present invention also relates to compounds of Formula 6
Figure imgf000019_0001
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; X2 is 1 -imidazolyl, lower alkyl or halogen substituted 1 -imidazolyl, 0R7, SR7 or NRR7 where R is H, alkyl of 1 to 6 carbons or benzyl; Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, Cl, Br, or I; Z is -C≡C-, -(CR1=CR1)n> where n' is an integer having the value 1 - 5, -CO-NRr, NRrCO-, -CO-0-, -0-CO-, -CS-NRr, J RΓCS-, -CO-S-, -S-CO-, -N-N-; Rj is independently H or alkyl of 1 to 6 carbons; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 3 ; R7 is H, alkyl of 1 to 6 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons or C1.6-trialkylsilyl. n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(C1.6-alkyl), or a cation of a pharmaceutically acceptable base. The present invention also relates to compounds of Formula 7
Figure imgf000021_0001
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, F, Cl, Br, or I;
Z is -C≡C-,
-(CRι=CRι)n, where n' is an integer having the value 1 - 5
-CO-NRr,
NRΓCO-,
-CO-0-,
-0-CO-,
-CS-NRr,
NRΓCS-,
-CO-S-,
-S-CO-, -N=N-
Rj is independently H or alkyl of 1 to 6 carbons; p is an integer having the values of 0 to 5;
R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, CF3, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons;
R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, CF3, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 2; R4 is independently H, alkyl of 1 to 6 carbons, or F; fluorosubstituted alkyl of 1 to 6 carbons, or halogen; o is an integer having the values of 0 to 4; n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH^C^-alkyl), or a cation of a pharmaceutically acceptable base. The present invention also relates to compounds of Formula 8
Figure imgf000022_0001
Formula 8
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; X3 is S, or O, C(Rι)2, or CO; Yx is H, lower alkyl of 1 to 6 carbons, cycloalkyl of 3 to 6 carbons, benzyl, lower alkyl substituted cycloalkyl of 3 to 6 carbons; Z is -C≡C-, -(CR^CR,)^ where n' is an integer having the value 1 - 5, -CO-NRr, NRrCO-, -CO-0-, -0-CO-, -CS-NRr, NRrCS-, -CO-S-, -S-CO-, -N-N-; Rj is independently H or alkyl of 1 to 6 carbons; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, CF3, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, CF3, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 2; R4 is independently H, alkyl of 1 to 6 carbons, or F; fluorosubstituted alkyl of 1 to 6 carbons, or halogen; o is an integer having the values of 0 to 4; n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(C1.6-alkyl), or a cation of a pharmaceutically acceptable base, the compound meeting at least one of the provisos selected from the group consisting of: Yj is cycloalkyl, when Yj is not cycloalkyl then X3 is O or S and n is 1, when Yj is not cycloalkyl then X3 is CO, and n is 1, when Yj is not cycloalkyl then X3 is CO and the moiety A is substituted with at least one F group. In a second aspect, this invention relates to the use of the compounds of Formula 1 through Formula 8 for the prevention or treatment of diseases and conditions in mammals, including humans, which diseases or conditions are prevented, treated, ameliorated, or the onset of which is delayed by administration of retinoid compounds or by the mammalian organism's naturally occurring retinoic acid. Because the compounds act as inhibitors of the breakdown of retinoic acid, the invention also relates to the use of the compounds of Formula 1 through Formula 8 in conjunction with retinoic acid or other retinoids. In this regard it is noted that retionoids are useful for the treatment of skin-related diseases, including, without limitation, actinic keratoses, arsenic keratoses, inflammatory and non-inflammatory acne, psoriasis, ichthyoses and other keratinization and hyperproliferative disorders of the skin, eczema, atopic dermatitis, Darriers disease, lichen planus, prevention and reversal of glucocorticoid damage (steroid atrophy), as a topical anti-microbial, as skin anti-pigmentation agents and to treat and reverse the effects of age and photo damage to the skin. The retinoids are also useful for the prevention and treatment of metabolic diseases such as type II non-insulin dependent diabetes mellitus (NIDDM) and for prevention and treatment of cancerous and precancerous conditions, including, premalignant and malignant hyperproliferative diseases such as cancers of the breast, skin, prostate, cervix, uterus, colon, bladder, esophagus, stomach, lung, larynx, oral cavity, blood and lymphatic system, metaplasias, dysplasias, neoplasias, leukoplakias and papillomas of the mucous membranes and in the treatment of Kaposi's sarcoma. Retinoids can also be used as agents to treat diseases of the eye, including, without limitation, proliferative vitreoretinopathy (PVR), retinal detachment, dry eye and other corneopathies, as well as in the treatment and prevention of various cardiovascular diseases, including, without limitation, diseases associated with lipid metabolism such as dyslipidemias, prevention of post-angioplasty restenosis and as an agent to increase the level of circulating tissue plasminogen activator (TPA). Other uses for retinoids include the prevention and treatment of conditions and diseases associated with human papilloma virus (HPV), including warts and genital warts, various inflammatory diseases such as pulmonary fibrosis, ileitis, colitis and Krohn's disease, neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and stroke, improper pituitary function, including insufficient production of growth hormone, modulation of apoptosis, including both the induction of apoptosis and inhibition of T-Cell activated apoptosis, restoration of hair growth, including combination therapies with the present compounds and other agents such as MinoxidilR, diseases associated with the immune system, including use of the present compounds as immunosuppressants and immunostimulants, modulation of organ transplant rejection and facilitation of wound healing, including modulation of chelosis. This invention also relates to a pharmaceutical formulation comprising one or more compounds of Formula 1 through Formula 8 in admixture with a pharmaceutically acceptable excipient, said formulation being adapted for administration to a mammal , including a human being, to treat or alleviate the conditions which were described above as treatable by retinoids, or which are controlled by or responsive to the organism' s native retinoic acid. These formulations can also be co-administered with retinoids to enhance or prolong the effects of medications containing retinoids or of the organism's native retinoic acid. BRIEF DESCRIPTION OF THE DRAWING FIGURE Figure 1 is a schematic representation of the P450RAI cell based assay utilized to evaluate the ability of the compounds of the invention to inhibit the Cytochrome P450RAI enzyme. BIOLOGICAL ACTIVITY, MODES OF ADMINISTRATION P450RAI-1 Cell-Based Inhibitor Assay: Figure 1 shows a schematic diagram of the P450RAI-1 cell based assay. P450RAI-1 stably transfected HeLa cells are maintained in 100 millimolar tissue culture dishes in Modified Eagle's Medium (MEM) containing 10 % Fetal Bovine Serum (FBS) and 100 μg/ml hygromycin. Exponentially growing cells are harvested by incubating in trypsin. Cells are then washed with IX Phosphate Buffered Saline (PBS) and plated in a 48- well plate at 5 XI 05 cells in 0.2 ml MEM medium containing 10 % FBS and 0.05 μCi [3H]-RA in the presence or absence of increasing concentrations of the test compounds. The compounds are diluted in 100% DMSO and then added in triplicate wells at either 10, 1 or 0.1 μM final concentration. As a positive control for RA metabolism inhibition, cells are also incubated with ketoconazole at 100, 10 and 1 μM. Cell are incubated for 3 hours at 37°C. The retinoids are then extracted using the procedure of Bligh et al. (1959) Canadian Journal of Biochemistry 37, 911-917, modified by using methylenechloride instead of chloroform. The publication Bligh et al. (1959) Canadian Journal of Biochemistry 37, 911-917 is specifically incorporated herein by reference. The water soluble radioactivity is quantified using a β-scintillation counter. IC50 values represent the concentration of inhibitor required to inhibit all-/n s,-RA metabolism by 50 percent and are derived manually from log-transformed data. The IC50 values obtained in this assay for several preferred compounds of the invention are disclosed in Table 1 below. Assays of Retinoid-like or Retinoid Antagonist and Inverse Aqonist- like Biological Activity Assays described below measure the ability of a compound to bind to, and/or activate various retinoid receptor subtypes. When in these assays a compound binds to a given receptor subtype and activates the transcription of a reporter gene through that subtype, then the compound is considered an agonist of that receptor subtype. Conversely, a compound is considered an antagonist of a given receptor subtype if in the below described co-tranfection assays the compound does not cause significant transcriptional activation of the receptor regulated reporter gene, but nevertheless binds to the receptor with a Kd value of less than approximately 1 micromolar. In the below described assays the ability of the compounds to bind to RARα, RARβ, RARγ, RXRα, RXRβ and R Rγ receptors, and the ability or inability of the compounds to activate transcription of a reporter gene through these receptor subtypes can be tested. As far as specific assays are concerned, a chimeric receptor transactivation assay which tests for agonist-like activity in the RARα, RARβ, and RARγ, receptor subtypes, and which is based on work published by Feigner P. L. and Holm M. (1989) Focus, 112 is described in detail in United States Patent No. 5,455,265. The specification of United States Patent No. 5,455,265 is hereby expressly incorporated by reference. The numeric results obtained with several preferred compounds of this invention in this assay are shown below in Table 1. These data demonstrate that generally speaking the compounds are not agonists (or only weak agonists) of RAR retinoic receptors, and also that they do not bind, or in some cases bind only weakly to RAR retinoid receptors. A holoreceptor transactivation assay and a ligand binding assay which measure the antagonist/agonist like activity of the compounds of the invention, or their ability to bind to the several retinoid receptor subtypes, respectively, are described in published PCT Application No. WO W093/11755 (particularly on pages 30 - 33 and 37 - 41) published on June 24, 1993, the specification of which is also incorporated herein by reference. A detailed experimental procedure for holoreceptor transactivations has been described by Heyman et al. Cell 68, 397 - 406, (1992); Allegretto et al. J. Biol. Chem. 268, 26625 - 26633, and Mangelsdorf et al. The Retinoids: Biology, Chemistry and Medicine, pp 319 - 349, Raven Press Ltd., New York, which are expressly incorporated herein by reference. The results obtained in this assay are expressed in EC50 numbers, as they are also in the chimeric receptor transactivation assay. The results of ligand binding assay are expressed in Kd numbers. (See Cheng et al. Biochemical Pharmacology Vol. 22 pp 3099-3108, expressly incorporated herein by reference.) The results if the ligand binding assay for several preferred compounds of the invention are included in Table 1. In the holoreceptor transactivation assay, tested for RXRα, RXRβ, and RXRγ receptors, the compounds of the present invention are, generally speaking, entirely devoid of activity, demonstrating that the compounds of the invention do not act as RXR agonists. TABLE 1
Figure imgf000029_0001
Figure imgf000030_0001
Figure imgf000031_0001
121
0.18
>10K >100K >100K
46
2.2
>10K >10K >10K
20
>10
18
1.1
32
0.18
27K 4225 13K
139
0.05
22
1.6
24
137
0.1
26
10
127
0.4
126
0.09
48
0.03
50
0.014
52
0.05
54
0.022
Figure imgf000033_0001
!The "Table #" refers to the Table provided below where the compound is identified with reference to a corresponding specific formula of Formulas 9 through 16.
TOPICAL SKIN IRRITATION TESTS As is known the topical retinoid all-trans-retinoic acid (ATRA) and oral retinoids such as 13 -cis RA and etretinate are known to induce substantial skin irritation in humans. This irritation is a direct result of activation of the RAR nuclear receptors. Analysis of retinoid topical irritation is also a highly reproducible method of determining in vivo retinoid potency. The SKHl-rVBR or hairless mouse provides a convenient animal model of topical irritation, since retinoid-induced skin flaking and abrasion can be readily scored by eye (Standeven et al. , "Specific antagonist of retinoid toxicity in mice." Toxicol. Appl. Pharmacol, 138:169-175, (1996); Thacher, et al. , "Receptor specificity of retinoid-induced hyperplasia. Effect of RXR-selective agonists and correlation with topical irritation". J. Pharm. Exp. Ther.. 282:528-534, (1997)). As is demonstrated below the topical application of P450RAI inhibitors of the present invention also causes an increase in the endogenous levels of ATRA that results in ATRA-induced irritation in skin of hairless mice. The attached data table discloses the retinoid-mimetic effects of some P450RAI inhibitor compounds of the present invention on the skin of hairless mice. Methods Female hairless mice (Crl:SKHl-t>BR), 5-7 weeks old, were obtained from Charles River Breeding Labs (Wilmington, MA). Animals were about 6 weeks old at the start of the experiments. Food (Purina Rodent Chow 5001) and reverse osmosis water were provided ad libitum. Mice were housed individually throughout the dosing period. In some experiments, mice that fit within a defined weight range, e.g. , 2 l-25g, were selected from the available stock and then randomly assigned to the various treatment groups, using body weight as the randomization variable. The compounds to be tested were dissolved in acetone for application o the backs of the mice. Mice were treated topically on the back in a volume of 4.0 ml/kg (0.07-0.12ml) adjusted daily so as to deliver a fixed dose of test compound per g body weight. Doses are disclosed as nmol/25g. Unless indicated otherwise, mice were treated with retinoids once daily on days 1 through 5 and observed on days 2, 3, 4, 5, 6, 7 and 8. The mice were weighed daily and the dorsal skin was graded daily using separate semi-quantitative scales to determine flaking and abrasion. These flaking and abrasion scores were combined with weight change (if any) to create a cutaneous toxicity score (Blackjack score). Cutaneous Toxicity Score A visual grading scale was used for characterizing topical irritation on a daily basis. The grading scale used is as follows:
Figure imgf000035_0001
Topical Toxicity Score The flaking and abrasion observations were combined with body weight observations to calculate a single, semiquantitative topical or cutaneous "toxicity score" as detailed below. The toxicity score (also known as "blackjack score" since the theoretical maximum is 21) takes into account the maximal severity, and the time of onset of skin flaking and abrasions and the extent of weight between the first and last days of the experiment. Below are listed the seven numerical components of the toxicity score and an explanation of how those values are combined to calculate the toxicity score. 1. Flaking-Maximal Severity: Highest flaking score attained during observation period. 2. Flaking-Day of Onset of grade 2 or worse: 0 - > 8 days 1 - day 8 2 - day 6 or 7 3 - day 4 or 5 4 - day 2 or 3 3. Flaking- Average Severity: Flaking severity scores are summed and divided by the number of observation days. 4. Abrasion-Maximal Severity: Highest abrasion score attained during observation period. 5. Abrasion-Day of Onset of grade 2 or worse: Same scale as (2) above. 6. Abrasion- Average Severity: Abrasion severity scores are summed and divided by the number of observation days. 7. Systemic Toxicity (weight loss): 0 - <lg 1 - 1 to 2g 2 - 2 to 4g 3 - 4 to 6g 4 - >6g or dead Calculation of Composite Flaking Score Flaking onset score (2) and average severity score (3) are summed and divided by two. The quotient is added to the maximal severity score ( 1 ). Composite flaking scores are calculated for each individual animal in a group, averaged, and rounded to the nearest integer. Values can range from 0-9. Calculation of Composite Abrasion Score Abrasion onset score (5) and average severity score (6) are summed and divided by two. The quotient is added to the maximal severity score (4). Composite abrasion scores are calculated for each individual animal in a group, averaged and rounded to the nearest integer. Values can range from 0-8. Calculation of Toxicity Score Composite flaking score, composite abrasion score, and systemic toxicity score are summed to give the "toxicity score." Toxicity scores are calculated for each individual animal in a group, averaged, and rounded to the nearest integer. Values can range from 0-21 and are expressed in Table 1 A below as the mean ± SD of the values for a group. Calculation of Percentage Change in Body Weight The body weight at the time of the last weighing (day 8, 11, or 12) was subtracted from the initial body weight. The difference was divided by the initial body weight, multiplied by 100%, and rounded to the nearest integer. Values were calculated for each individual animal and the mean and standard deviation for each group are shown.
TABLE 1A
Figure imgf000038_0001
Modes of Administration The compounds of this invention may be administered systemically or topically, depending on such considerations as the condition to be treated, need for site-specific treatment, quantity of drug to be administered, and numerous other considerations. Thus, in the treatment of dermatoses, it will generally be preferred to administer the drug topically, though in certain cases such as treatment of severe cystic acne or psoriasis, oral administration may also be used. Any common topical formulation such as a solution, suspension, gel, ointment, or salve and the like may be used. Preparation of such topical formulations are well described in the art of pharmaceutical formulations as exemplified, for example, by Remington's Pharmaceutical Science, Edition 17, Mack Publishing Company, Easton, Pennsylvania. For topical application, these compounds could also be administered as a powder or spray, particularly in aerosol form. If the drug is to be administered systemically, it may be confected as a powder, pill, tablet or the like or as a syrup or elixir suitable for oral administration. For intravenous or intraperitoneal administration, the compound will be prepared as a solution or suspension capable of being administered by injection. In certain cases, it may be useful to formulate these compounds by injection. In certain cases, it may be useful to formulate these compounds in suppository form or as extended release formulation for deposit under the skin or intramuscular injection. Other medicaments can be added to such topical formulation for such secondary purposes as treating skin dryness; providing protection against light; other medications for treating dermatoses; medicaments for preventing infection, reducing irritation, inflammation and the like. Treatment of dermatoses or any other indications known or discovered to be susceptible to treatment by retinoic acid-like compounds, or to control by naturally occurring retinoic acid will be effected by administration of the therapeutically effective dose of one or more compounds of the instant invention. A therapeutic concentration will be that concentration which effects reduction of the particular condition, or retards its expansion. In certain instances, the compound potentially may be used in prophylactic manner to prevent onset of a particular condition. A useful therapeutic or prophylactic concentration will vary from condition to condition and in certain instances may vary with the severity of the condition being treated and the patient's susceptibility to treatment. Accordingly, no single concentration will be uniformly useful, but will require modification depending on the particularities of the disease being treated. Such concentrations can be arrived at through routine experimentation. However, it is anticipated that in the treatment of, for example, acne, or similar dermatoses, that a formulation containing between 0.01 and 1.0 milligrams per milliliter of formulation will constitute a therapeutically effective concentration for total application. If administered systemically, an amount between 0.01 and 5 mg per kg of body weight per day would be expected to effect a therapeutic result in the treatment of many diseases for which these compounds are useful. In some applications pharmaceutical formulations containing the CP- 450RAI inhibitory compounds of the invention may be co-administered with formulations containing retinoids. GENERAL EMBODIMENTS AND SYNTHETIC METHODOLOGY Definitions The term alkyl refers to and covers any and all groups which are known as normal alkyl and branched-chain alkyl. Unless specified otherwise, lower alkyl means the above-defined broad definition of alkyl groups having 1 to 6 carbons in case of normal lower alkyl, and 3 to 6 carbons for lower branch chained alkyl groups. A pharmaceutically acceptable salt may be prepared for any compound in this invention having a functionality capable of forming a salt, for example an acid functionality. A pharmaceutically acceptable salt is any salt which retains the activity of the parent compound and does not impart any deleterious or untoward effect on the subject to which it is administered and in the context in which it is administered. Pharmaceutically acceptable salts may be derived from organic or inorganic bases. The salt may be a mono or polyvalent ion. Of particular interest are the inorganic ions, sodium, potassium, calcium, and magnesium. Organic salts may be made with amines, particularly ammonium salts such as mono-, di- and trialkyl amines or ethanol amines. Salts may also be formed with caffeine, tromethamine and similar molecules. Where there is a nitrogen sufficiently basic as to be capable of forming acid addition salts, such may be formed with any inorganic or organic acids or alkylating agent such as methyl iodide. Preferred salts are those formed with inorganic acids such as hydrochloric acid, sulfuric acid or phosphoric acid. Any of a number of simple organic acids such as mono-, di- or tri- acid may also be used. Some compounds of the present invention may have trans and cis (E and Z) isomers. Unless specific orientation of substituents relative to a double bond or a ring is indicated in the name of the respective compound, and/or by specifically showing in the structural formula the orientation of the substituents relative to the double bond or ring the invention covers trans as well as cis isomers. Some of the compounds of the present invention may contain one or more chiral centers and therefore may exist in enantiomeric and diastereomeric forms. The scope of the present invention is intended to cover all isomers per se, as well as mixtures of cis and trans isomers, mixtures of diastereomers and racemic mixtures of enantiomers (optical isomers) as well. A bond drawn with a wavy line indicates that the carbon to which the bond is attached can be in any of the applicable possible configurations. General Synthetic Methodology The compounds of the invention are encompassed by the general Formulas 1 through 8 provided above. As it can be seen, in each of these formulas a linker or tethering group designated Z covalently connects an aromatic or heteroaromatic moiety designated A(R2)-CH2)n-COOR8 and another cyclic moiety which in accordance with these formulas is a substituted phenyl, substituted tetrahydronaphthalene, substituted chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline moiety. Generally speaking a compound such as X4-A(R2)-CH2)n-COOR8 is commercially available, or can be made in accordance with the chemical literature, or with such modification of known chemical processes which are within the skill of the practicing organic chemist. The group X4 represents a reactive group, which is suitable for coupling the X4.A(R2)-CH2)n-COOR8 compound to a derivative of the substituted phenyl, substituted tetrahydronaphthalene, substituted chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline moiety so that as a result of the coupling the linker or tether moiety Z is formed. In many instances the group X4 is a leaving group such as halogen, or trifluoromethanesulfonyloxy, or a group capable of participating in a Wittig or Homer Emmons reaction. In some instances the group X4 is an ethynyl group capable of undergoing a coupling reaction with a leaving group (such as a halogen or a trifluoromethanesulfonyloxy group) attached to the substituted phenyl, substituted tetrahydronaphthalene, substituted chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline moiety. The group X4 can also represent an OH or an NH2 group that forms an ester (COO) or amide (CONH) linker, respectively, when reacted with an activated carboxyl derivative of the substituted phenyl, substituted tetrahydronaphthalene, substituted chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline moiety. Examples for the compounds of formula X4 A(R2)-CH2)n-COOR8 are provided in the specific examples below. Further examples where the X4 group is halogen are ethyl 4-iodobenzoate, ethyl 6-iodonicotinate, ethyl 5-iodofuran-3- carboxylate, ethyl 5-iodothiophen-3-carboxylate, ethyl 5-iodofuran-2- carboxylate, ethyl 5-iodothiophen-2-carboxylate, and analogous halogenated derivatives of the respective pyridazine, pyrazine and other heteroaryl carboxy lie acid esters. The analogous aryl and and heteroaryl hydroxyl compounds and amines, wherein the halogen of the above-listed compounds is replaced by OH or NH2 respectively, also serve as additional examples for the reagents of the formula X4- A(R2)-CH2)n-COOR8. In these examples X4 is OH or NH2, respectively. Still further in accordance with the general synthetic methodology to provide the compounds of the present invention, a derivative of the substituted phenyl, substituted tetrahydronaphthalene, substituted chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline moiety is synthesized first, having a covalently attached X5 group. The X5 group reacts with the X4 group of the reagent X4-A(R2)-CH2)n-COOR8 to form the linker designated Z in Formulas 1 through 8. The X5 group is one that is capable of participating in a catalyzed coupling reaction, (such as an ethynyl group when X4 is a leaving group), or a leaving group (such as halogen or trifluoromethanesulfonyloxy when X4 is an ethynyl group) , or an activated carboxy lie acid function (when X4 is OH or NH2). The X5 group can also be an OH, SH or NH2 group when the X4 group is an activated carboxylic acid function. Specific examples for substituted phenyl, substituted tetrahydronaphthalene, substituted chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline intermediates having an X5 functionality are provided below, and are also available in the chemical scientific and patent literature. Generally speaking, for reagents and reactions covalently joining a substituted tetrahydronaphthalene, substituted chroman, thiochroman, or tetrahydroquinoline intermediate with a substituted aryl or heteroaryl group, such as X4-A(R2)-CH2)n-COOR8, to form a compound including the linker designated Z, reference is made to United States Patent Nos. 5,648,503; 5,723,666 and 5,952,345 the specification of each of which are expressly incorporated herein by reference. The substituted phenyl, tetrahydronaphthalene, chroman, thiochroman, tetrahydroquinoline or tetrahydroisoquinoline moiety of the novel compounds of the invention are derivatized in a manner to include the specific substituents (such as for example the cycloalkyl substituents) encompassed within the scope of the invention, either before or after the - A(R2)-CH2)n-COOR8 moiety has been attached and the linker Z has formed, as illustrated by the below described specific examples. The -CH2)π-COOR8 moiety of the compounds of the invention can be modified in order to obtain still further compounds of the invention. One such modification is saponification of compounds where the R8 group is an alkyl or -CH20(C1.6-alkyl) group. Another modification is esterification of the carboxylic acid function when the R8 group is H or a cation. Such saponification and esterification reactions are well known in the art and within the skill of the practicing organic chemist. Still another modification of the compounds of the invention (or of the intermediates X4-A(R2)- CH2)n-COOR8, or of precursors to these intermediates) is the homologation of the (CH2)n group. The latter can be accomplished, for example, by the well known Arndt-Eistert method of homologation, or other known methods of homologation. SPECIFIC EMBODIMENTS With reference to the symbol A in Formulas 1 through 8, the preferred compounds of the invention are those where A is phenyl, naphthyl, pyridyl, thienyl or furyl. Even more preferred are compounds where A is phenyl. As far as substitutions on the A (phenyl) and A (pyridyl) groups are concerned, compounds are preferred where the phenyl group is 1,4 (para) substituted and where the pyridine ring is 2,5 substituted. (Substitution in the 2,5 positions in the "pyridine" nomenclature corresponds to substitution in the 6-position in the "nicotinic acid" nomenclature.) In the presently preferred compounds of the invention either there is no R2 substituent on the A group, or the R2 substituent is preferably a fluoro group that is preferably located on the aromatic carbon adjacent (ortho) to the carbon bearing the -(CH2)n-COOR8 group. As far as the -(CH2)n-COOR8 is concerned compounds are preferred where n is 0, 1 or 2, and even more preferred where n is 1. In Formulas 5 and 8 only compounds where n is 1 or 2 are preferred, with n=l being most preferred. For the R8 group H, lower alkyl of 1 to 3 carbons, and -CH20(C,_ 6-alkyl) groups are preferred, as well as the pharmaceutically acceptable salts of the free acids when R8 is H. Among the lower alkyl and -CH20(Cj. 6-alkyl) groups ethyl and OCH2CH3, respectively, are presently most preferred. The linker group Z in all the compounds of the invention is preferably ethynyl (-C≡C-), ester (CO-O), ethenyl, (-CR, =CRr) or amide (CONR,). Among these the ethynyl (-C≡C-) and ester (CO-O) linkers are most preferred. Moreover, in the preferred compounds of the invention the linker Z is attached to the 6 position in Formula 1, to the 4 position in Formula 2, to the 6 position in Formula 3, to the 6 position in Formula 4, to the 4 position in Formula 5, to the 4 position in Formula 6, to the 6 position in Formula 7, and to the 6 position in Formula 8. These positions are indicated by arabic numerals in Formulas 1 through 8. The Rj group substituting the non-aromatic rings in Formulas 1, 3, 4, 7 and 8 is preferably alkyl, more preferably alkyl of 1 to 3 carbons, and most preferably methyl. The Rx group substituting the cyclopropane ring in Formulas 1, 2, 3 and 7 is preferably non-existent (p is 0), or is alkyl of 1 to 3 carbons, even more preferably methyl. The X group in Formulas 1 and 5 is preferably O, and in Formula 2 X is preferably O or NR. The Xx group in Formula 4 is preferably 1-imidazolyl, substituted 1- imidazolyl, or NRR6, where R6 is preferably cyclopropyl or branched-chain alkyl. The X2 group in Formula 6 is preferably 1-imidazolyl or substituted 1-imidazolyl. The X3 group in Formula 8 is preferably O or C=0. The Y group is preferably H, lower alkyl of 1 to 3 carbons, cycloalkyl, lower alkyl substituted cycloalkyl, or halogen. Among these, H, Cl, and cyclopropyl are most preferred. The Y! group of Formula 8 is preferably H, lower alkyl of 1 to 3 carbons, cycloalkyl, or lower alkyl substituted cycloalkyl. Among these H, ethyl and cyclopropyl are presently most preferred. The most preferred compounds of the invention are disclosed in Tables 2 through 9 with reference to Formulas 9 through 16. The compounds specifically shown in Tables 2 through 9 are carboxylic acids, but it should be understood that the C t _3alkyl esters, methoxymethy 1 (OCH2CH3) esters and pharmaceutically acceptable salts of the acids shown in these tables are also highly preferred. It should also be apparent that the preferred compounds shown in Table 2 with reference to the more specific Formula 9 are within the scope of Formula 1. Similarly, the preferred compounds shown in Table 3 with reference to the more specific Formula 10 are within the scope of Formula 2; the preferred compounds shown in Table 4 with reference to the more specific Formula 11 are within the scope of Formula 3; the preferred compounds shown in Table 5 with reference to the more specific Formula 12 are within the scope of Formula 4; the preferred compounds shown in Table 6 with reference to the more specific Formula 13 are within the scope of Formula 5; the preferred compounds shown in Table 7 with reference to the more specific Formula 14 are within the scope of Formula 6; the preferred compounds shown in Table 8 with reference to the more specific Formula 15 are within the scope of Formula 7, and the preferred compounds shown in Table 9 with reference to the more specific Formula 16 are within the scope of Formula 8.
Figure imgf000048_0001
TABLE 2
Figure imgf000048_0002
Figure imgf000049_0001
Figure imgf000049_0002
Figure imgf000050_0001
Formula 11
TABLE 4
Figure imgf000050_0002
Figure imgf000051_0001
Formula 12
TABLE 5
Figure imgf000051_0002
Figure imgf000052_0001
TABLE 6
Figure imgf000052_0002
Figure imgf000053_0001
Formula 14
TABLE 7
Figure imgf000053_0002
Figure imgf000054_0001
TABLE 8
Figure imgf000054_0002
Figure imgf000055_0001
Formula 16
TABLE 9
Figure imgf000055_0002
The compounds of the invention can be synthesized by applying the general synthetic methodology described above, and by such modifications of the hereinafter described specific synthetic routes which will become readily apparent to the practicing synthetic organic chemist in light of this disclosure and in view of general knowledge available in the art. The hereinafter disclosed specific reaction schemes are directed to the synthesis of exemplary and preferred compounds of the invention. Whereas each of the specific and exemplary synthetic routes shown in these schemes may describe specific compounds of the invention only within the scope of one or two of the general Formulas 1 through 8, the synthetic processes and methods used therein are adaptable within the skill of the practicing organic chemist and can be used with such adaptation for the synthesis of compounds of the invention which are not specifically described herein as examples. Reaction Scheme 1 discloses a presently preferred synthetic route to certain intermediates or reagents having the general formula X4- A(R2)- CH2)n-COOR8, where the symbol A represents a di-, or tri-substituted phenyl moiety. These intermediates are utilized in the synthesis of the compounds of the invention.
COOH MeOH,H2S04 COOCH3 reagent B
Figure imgf000057_0001
intermeditέe 1 intermediate 2
TSlOH,p-TSA, PhH, Dean-Stark or l.KOH,EtOH,refux reagent C
2. EtOH, H Oφ benzene, Dean-Stark
Figure imgf000057_0002
intermediate 4 intermediate 5
l.Pd(PPh3)2Cl2,≡-TMS
Figure imgf000057_0003
Figure imgf000057_0004
Figure imgf000057_0005
intermediate 6 reagent D
Figure imgf000057_0006
REACTION SCHEME 1
CH3 KMnOφ H20, pyridine
Figure imgf000058_0001
reagent G
Figure imgf000058_0002
intermediate 2 reagent H
Figure imgf000058_0003
intermediate 4 reagent I
REACπON SCHEME 1 CONTINUED
Reaction Scheme 2 discloses presently preferred synthetic routes to obtain exemplary and preferred tetrahy dronaphthalenone compounds of the invention within the scope of Formula 8 where the the symbol X3 represents a C=0 group, Z represents an ethynyl moiety or a -COO- (ester) function, and A is a substituted phenyl moiety. Reaction Scheme 3 discloses presently preferred synthetic routes to obtain exemplary and preferred tetrahydronaphthalene compounds of the invention within the scope ofFormula 4 where Xl represents a dialkyl substituted nitrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety. Reaction Scheme 4 discloses presently preferred synthetic routes to obtain exemplary and preferred isoquinoline compounds of the invention within the scope ofFormula 3 where the symbol Y represents hydrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety. Reaction Scheme 5 discloses presently preferred synthetic routes to obtain exemplary and preferred chroman compounds of the invention within the scope o Formula 8 where the symbol Yt represents hydrogen, Z is an ethynyl moiety or an ester (COO) function, and A is a substituted phenyl moiety.
Figure imgf000060_0001
intermediate 9
Figure imgf000060_0002
intermeditέe 10 intermediate 11
C
Figure imgf000060_0003
intermediate 12 intermediate 13
Figure imgf000060_0004
intermediate 14 n = 0 X=H R = CH3CH2 Compomd4 n =l X =HR = CH3 Compounds n =l X=H Compound 14 n=l X=FR= CH3CH2 Compound 15n = lX = F
Figure imgf000060_0005
REACTION SCHEME 2
Figure imgf000060_0006
Figure imgf000061_0001
intermediate 11
Compound 20 reagent E
2. CFsCOOH, CH2 2
REACΗON SCHEME 2 CONTINUED
Figure imgf000062_0001
intermediate 14 n = 0 X=H R = CH3CH2 Compound 3 n = 0 X =H Compound4 n = l X =HR = CH3 Compound8 n = l X =H Compound 9 n = 0 X =FR = CH3CH2 Compound 13 n - 0 X =F Compound 14 n =l X=FR= CH3CH2 Compound 18 n=l X = F
Figure imgf000062_0002
intermediate 12 intermediate 29
Figure imgf000062_0003
REACΗON SCHEME 3 σ OMe „OΛfe
Figure imgf000063_0001
intermediate 15 intermediate 16
Figure imgf000063_0002
utiermedittel? intermediate 18
Figure imgf000063_0003
intermediate 22 intermeditte 23
Figure imgf000063_0004
= -metymoip o ne -ox e reference 1 Tomita etcLJ. Client. Soc. (c), 1969, 183-188 reference 2 Chaplinski et aL Angew. Chem. Int. Eώt. EngL, 1996, 35, 413^14
REACnON SCHEME 4
Figure imgf000064_0001
intermediate 27 Compound21X=F R = CH3CH2 Compoιmd23X=H R = CH3
IiOH.H20, MeORTHF:H20
Figure imgf000064_0002
Compound 22 X = F Compound 24 X=H
REACΗON SCHEME 4 CONTINUED
Figure imgf000065_0001
V. S. CH3 CH3CH2
Figure imgf000065_0002
Compound 30 X=*Fn = 0 Compound 32 X=Fn =l
1. S0C12, benzene
Figure imgf000065_0003
2. pyridine, intermediate 39 reagent E
Figure imgf000065_0004
Compound 45 Compound 46
REACπON SCHEME 5
Reaction Scheme 6 discloses presently preferred synthetic routes to obtain other exemplary and preferred chroman compounds of the invention within the scope ofFormula 8 where the symbol Yx represents a cyclopropyl group, Z is an ethynyl moiety and A is a substituted phenyl moiety. Reaction Scheme 7 discloses presently preferred synthetic routes to obtain exemplary and preferred chroman compounds of the invention within the scope ofFormula 1 where the symbol X represents oxygen (O), Y represents hydrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety. Reaction Scheme 8 discloses presently preferred synthetic routes to obtain other exemplary and preferred chroman compounds of the invention within the scope ofFormula 1 where the symbol X represents oxygen (O), Y represents a cyclopropyl group, Z is an ethynyl moiety and A is a substituted phenyl moiety.
Figure imgf000067_0001
intermediate 32 intermediate 33
Figure imgf000067_0002
intermediate 34
Compound 33 X=H n = 0 R = CH3CH2 Compound 35 X=H n = l R = CH3 Compound 37 X = Fn = l R = CH3CH2
lMNaOR EtOH, 8θfC
Figure imgf000067_0003
Compound 34 X=H n — 0 Compound 36 X=H n—1 Compound 38 X = F n=l
REA CπON SCHEME 6
Figure imgf000068_0001
intermediate 37 intermediate 38
Figure imgf000068_0002
Compound 39 X=H n = 0 ϋ = CH3CH2 Compound 41 X=H n=l R = CH3 Compound 43 X=F n = 0 R = CH3
Figure imgf000068_0003
Compound 40 X=H n = 0 Compound 42 X=H «=1 Compound 44 X=F n = 0
REACπON SCHEME 7
Figure imgf000069_0001
intermediate 36 intermediate 40 intermediate 41
CH2N2, Pd(OAc)2, Ether
Figure imgf000069_0002
intermediate 43 intermediate 42
Figure imgf000069_0003
intermedirte 44
Compound 47 X=H n =l R = CH3 Compound 49 X = F n = l R = CH3 Compound 51 X=H n = 0 R = CH3CH2 Compound 53 X = F n = 0 R = CH3
IMNaOR EtOH, 80°C
Figure imgf000069_0004
Compound 48 X=H n =1 Compound 50 ΛT = F w = I Compound 52 X=H n -0 Compound 54 X = F n = 0
REACπON SCHEME 8 Reaction Scheme 9 discloses presently preferred synthetic routes to obtain exemplary and preferred tetrahydroquinoline compounds of the invention within the scope of Formula 1 where the symbol X represents an alkyl substituted nitrogen (alkyl-N), Y represents hydrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety. Reaction Schemes 10 and 11 disclose presently preferred synthetic routes to obtain exemplary and preferred phenyl compounds of the invention within the scope ofFormula 2 where the symbol X represents oxygen (O), R5 is alkyl or benzyl, Z is an ethynyl moiety and A is a substituted phenyl moiety. Reaction Scheme 12 discloses presently preferred synthetic routes to obtain exemplary and preferred phenyl compounds of the invention within the scope ofFormula 2 where the symbol R5-X represents an alkyl, dialkyl, benzyl or dibenzyl substituted nitrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety. Reaction Schemes 13 and 14 disclose presently preferred synthetic routes to obtain exemplary and preferred phenyl compounds of the invention within the scope of Formula 6 where the symbol X2 represents a ( 1 - imidazolyl) moiety, Z is an ethynyl moiety and A is a substituted phenyl moiety.
Figure imgf000071_0001
intermediate 54 intermediate 55
Figure imgf000071_0002
intermediate 56 intermediate 57
Figure imgf000071_0003
Compound 65
Figure imgf000071_0004
Compound 66
REACTION SCHEME 9
Figure imgf000072_0001
REACπON SCHEME 10
Figure imgf000073_0001
intermediate 61 R=*H R'=Me intermediate 66 R=H R'=i-propyl Compound 69 « = 0 R=H R'= methyl intermediate 71 R=H R'= benzyl Compound 70 n - 1 R=H R'=metl≠ intermediate 76 R*=Me R'= benzyl Compound 73 » = 0 R = H R'=i-propyl intermediat 81 R=Me R'=i-propyl Compound 74 n = 1 R <=H R'=i-propyl intermedi έe 85 R=Me R'— neopentyl Compound 77 n — 0 R=H R'= benzyl intermediate 90 R = Et R'= benzyl Compound 78 n = 1 R=H R'= benzyl intermediate 95 R = Et R'=i-ρropyl Compound 81 n = 0 R=Me R'=benzyl Compound 82 « = 1 R=Me R'= benzyl Compound 85 n = 0 R=Me R'=i-propyl Compound 86 n = ■ 1 R =Me R'=i-propyl Compound 89 n = 0 R- Me R'= neopentyl Conψound 90 n = -1 R =Me R'= neopentyl Compound 93 - 0 R = Et R'=benzyl Compound 94 n == i R=Et R'= benzyl Compound 97 = 0 R=Et R'=i-propyl Compound 98 = 1 R = Et R'= i-propyl
REACΩON SCHEME 10 CONTINUED
Figure imgf000074_0001
3. separate isomers by coumn intermediate 104
Figure imgf000074_0002
Tebbe Reagent
Figure imgf000074_0003
R = i-propyl intermediate 97 R = i-propyl intermediate 104 R— t-butyl intermediate 106 R= t-butyl
Figure imgf000074_0004
intermediate 98 R = i-propyl intermediate 99 R = i-propyl intermediate 107 R= t-butyl intermediate 108 R - t-butyl
Figure imgf000074_0005
TBAF=tetra-n-butyl ammonium fluoride
Figure imgf000074_0006
REACπON SCHEME 11
Figure imgf000075_0001
Mel, K2C03, acetone
Figure imgf000075_0002
Figure imgf000075_0003
intermediate 130
Figure imgf000075_0004
intermediate 118 R=R, R'= n-propyl intermediate 120 R=R R'= n-propyl intermediate 121 n-propyl R'= n-propyl R = n-propyl R'= n-propyl intermediate 123 R = intermeditde 124 R=H, R'= benzyl intermediate 127 R=R R'=benzyl intermeditde 125 intermediate 129 R = benzyl R'= benzyl R = benzyl R'= benzyl intermediate 130 R = methyl R'= benzyl intermediate 132 R = methyl R'= benzyl
Figure imgf000075_0005
REACTION SCHEME 12
Figure imgf000076_0001
Figure imgf000076_0002
intermediate 136
Figure imgf000076_0003
intermediate 141
REACπON SCHEME 13
Figure imgf000077_0001
intermediate 143 intermediate 146
Figure imgf000077_0002
mtermeditte 152 intermediate 153 n = 0 R = ethyl intermediate 154 n = l R = metltyl
Figure imgf000077_0003
intermediate 155 n = 0 R = ethyl intermediate 156 n=l R= methyl
TBS = t-butyldimetliylsilyl
Figure imgf000077_0004
REACΗON SCHEME 14 Reaction Scheme 15 disclose presently preferred synthetic routes to obtain exemplary and preferred phenyl compounds of the invention within the scope of Formula 6 where X2 represents an alkyl and cyclopropyl substituted nitrogen (X2 = (alkyl,cycloalkyl)N) , Y represents hydrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety. Reaction Scheme 16 discloses presently preferred synthetic routes to obtain exemplary and preferred tetrahydronaphthalene compounds of the invention within the scope ofFormula 4 where the symbol Xt represents a (1-imidazolyl) moiety, Y represents hydrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety. Reaction Scheme 17 discloses presently preferred synthetic routes to obtain exemplary and preferred phenyl compounds of the invention within the scope ofFormula 6 where the symbol X2 represents a 1-methyl- cyclopropoxy moiety, Y represents hydrogen, Z is an ethynyl moiety and A is a substituted phenyl moiety. Reaction Scheme 18 discloses presently preferred synthetic routes to obtain exemplary and preferred phenyl compounds of the invention within the scope of Formula 5 where the symbol X represents oxygen (O), Y represents a tertiary-butyl group, Z is an ethynyl moiety and A is a substituted phenyl moiety.
Figure imgf000079_0001
intermediate 158
B
Figure imgf000079_0002
2.K2C03,MeOH intermediate 159 intermediate 161
Figure imgf000079_0003
REACπON SCHEME 15
Figure imgf000080_0001
intermediate 13 n = 0 R = Et Compound 4 n=l R=Me
Figure imgf000080_0002
n = 0 R = Et Compound 135 n=l R= Me Compound 137 n=l Compound 139 n = 0
REACTION SCHEME 16
Figure imgf000081_0001
inte medit e 149 intermediate 162
Figure imgf000081_0002
intermediate 164 intermediate 166
Figure imgf000081_0003
Compound 141
REACπON SCHEME 17
j Pd(PPIi3>2Cl2) ===— TMS
Figure imgf000082_0001
τHF,N 3
Oil, NEt3l THF, 70° C HsCσ T Cul, reagent B or reagent H
Figure imgf000082_0002
2. Mel, K2C03> acetone
3. K2C03, MeOH intermediate 169
Figure imgf000082_0003
Compound 142 R=H Compound 143 R=H Compound 144 R = F Compound 145 R = F
REACTION SCHEME 18
SPECIFIC EXAMPLES 4-Hvdroxy phenyl acetic acid-t-butyl ester (Reagent E) A stirred suspension of 4-hydroxy-phenyl acetic acid (0.152g, lmmol) in anhydrous toluene (5mL) was heated at 80°C and N,N-dimethyl formamide-di-t-butyl acetal (lmL, 4.17mmol) was added when the solution became homogenous. After 0.5h, the reaction mixture was cooled to ambient temperature and the volatiles were distilled off in vacuo. The residue was diluted with water and extracted with diethyl ether (x2). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using 16% ethyl acetate in hexane as the eluent to afford the title compound as a solid (0.1 lg, 56%). 'H-NMR (300 MHz, CDCl3):δ 1.44(s, 9H), 3.45(s, 2H), 6.55(s, 1H), 6.69(d, J = 8.8Hz, 2H), 7.06(d, J = 8.5Hz, 2H). 3-Hvdroxy phenyl acetic acid- t-butyl ester (Reagent F) A stirred suspension of 3-hydroxy-phenyl acetic acid (1.52g, 1 Ommol) in anhydrous toluene (20mL) was heated at 80°C and N,N- dimethyl formamide-di-t-butyl acetal (9.6mL, 40mmol) was added when the solution became homogenous. After 0.5h, the reaction mixture was cooled to ambient temperature and the volatiles were distilled off in vacuo. Th residue was diluted with water and extracted with diethyl ether (x2). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using 16% ethyl acetate in hexane as the eluent to afford the title compound as a solid (1.17g, 56%). 'H-NMR (300 MHz, CDCl3):δ 1.47(s, 9H), 3.49(s, 2H), 6.30(s, 1H), 6.70- 6.79 (m, 2H), 6.81(d, J = 7.6Hz, 1H), 7.16(t, J = 7.7Hz, 1H). Methyl-2-fluoro-4-iodo benzoate (Reagent G) A solution of 2-fluoro-4-iodo toluene (5g, 26.6mmol) in pyridine (2mL) and water (20mL) was treated with potassium permanganate (16.6g, 105mmol) and heated at 150°C overnight. The reaction mixture was then cooled to room temperature and filtered and the filtrate was extracted with hexane. The aqueous phase was acidified with 10% hydrochloric acid and extracted with ethyl acetate. The organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo. The residue was dissolved in 20mL of methanol, treated with concentrated sulfuric acid (lmL) and refluxed overnight. The volatiles were distilled off in vacuo and the residue was dissolved in diethyl ether, washed with brine, dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to an oil. Flash column chromatography over silica gel (230-400 mesh) using 10% ethyl acetate in hexane as the eluent afforded the title compound as an oil (0.26g, 5%). Η NMR (300 MHz, CDC13): δ 7.60 (m, 4H), 3.93 (s, 3H). Ethyl-2-fluoro-4-hvdroxy benzoate (Reagent I) A solution of 2-fluoro-4-hydroxy benzoic acid (Intermediate 4, 3g, 19.2mmol) in ethanol (65mL) and benzene (90mL) was treated with concentrated sulfuric acid (1.5mL) and heated at reflux overnight using a Dean-Stark water trap. The volatiles were distilled off in vacuo and the residue was diluted with water and diethyl ether. The phases were separated and the organic phase was washed with saturated aqueous sodium bicarbonate (xl), water (xl) and brine (xl), dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title compound as a solid (3.07g, 86%). Η-NMR (300 MHz, CD3COCD3): δ 1.34 (t, J= 7.1Hz, 3H), 4.32 (q, J = 7.1Hz, 2H), 6.66(dd, J = 2.6, 10.9Hz, 1H), 6.76 (dd, J= 2.3, 8.5Hz, 1H), 7.83(d, J= 8.4Hz, 1H), 9.91 (s, 1H). Ethyl-2-fluoro-4-trifluoromethylsulfonyloxy-benzoate (Intermediate 6) A stirred, cooled (ice bath) solution of ethyl-2-fluoro-4-hydroxy- benzoate (Intermediate 5, 0.368g, 2mmol) and 2,6-di-tert-butyl-4-methyl- pyridine (0.81 g, 8mmol) in 8mL of dichloromethane was treated with trifluoromethanesulfonic anhydride (O.lg, 4mmol). The reaction mixture was allowed to warm to ambient temperature and stirred overnight. The reaction mixture was subjected to flash column chromatography over silica gel (230-400 mesh) using 5-10% ethyl acetate in hexane as the eluent to afford the title compound (0.53g, 85%). Η-NMR (300 MHz, CDC13): δ 1.41 (t, /= 7.3Hz, 3H), 4.42 (q, J= 7.1Hz, 2H), 7.12-7.20(m, 2H), 8.08(t, J= 8.3Hz, 1H). Ethyl-2-fluoro-4-trimethylsilanylethynyl-benzoate (Intermediate 7) A solution of ethyl-2-fluoro-4- trifluoromethylsulfonyloxy-benzoate (Intermediate 6, 1.82g, 6mmol) in triethyl amine (12mL) and anhydrous tetrahydrofuran (30mL) was treated with copper(I)iodide (0.12g, 0.6mmol) and sparged with argon. Dichlorobis(triphenylphosphine)palladium(II) (0.43 g, O.δmmol) was added followed by (trimethylsilyl)acetylene (3.6mL, 24mmol) and the resulting reaction mixture was heated at 70°C overnight. It was then cooled to ambient temperature, diluted with diethyl ether and filtered over a bed of celite. The filtrate was evaporated in vacuo to an oil which was subjected to flash column chromatography over silica gel (230- 400 mesh) using 5% ethyl acetate in hexane as the eluent to afford the title compound as an orange oil (1.5g, quantitative). Η-NMR (300 MHz, CDCl3):δ 0.011 (s, 9H), 1.13(t, J= 7.1Hz, 3H), 4.13 (q, J= 7.1Hz, 2H), 6.93-7.02(m, 2H), 7.07 (s, 1H), 7.61 (t, J= 7.9Hz, 1H). Ethyl-4-ethvnyl-2-fluoro benzoate (Reagent D) A solution of ethyl-2-fluoro-4-trimethylsilanylethynyl-benzoate (Intermediate 7, 1.5g, δmmol) in ethanol (16mL) was treated with potassium carbonate (1.485g, 10.74mmol) and stirred overnight at room temperature. The reaction mixture was then diluted with water and extracted with diethyl ether (x2). The combined organic phase was dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford an orange oil. Flash column chromatography over silica gel (230-400 mesh) using 5% ethyl acetate in hexane as the eluent afforded the title compound (lg, 86%). Η-NMR (300 MHz, CDCl3):δ 1.39 (t, J= 7.1Hz, 3H), 3.26 (s, 1H), 4.39 (q, J= 7.1Hz, 2H), 7.22-7.33 (m, 2H), 7.88(t, J= 7.7Hz, 1H). Methyl-4-iodo-phenyl acetate (Reagent B) A solution of 4-iodo phenyl acetic acid (5g, 19mmol) in methanol was treated with concentrated sulfuric acid (0.5mL) and refluxed overnight. The volatiles were distilled off in vαcuo and the residue was dissolved in ethyl acetate, washed with brine, dried over anhydrous sodium sulfate, filtered and evaporated in vαcuo to an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using 5% ethyl acetate in hexane as the eluent to afford the title compound as a clear oil (5g, 95%). !H NMR (300 MHz, CDC13): δ 7.63 (d, 2H, J= 8.5Hz), 7.01 (d, 2H, J= 8.0Hz), 3.67 (s, 3H), 3.55 (s, 2H). 2-Fluoro-4-iodo-ρhenyl acetonitrile (Intermediate 2) A solution of 2-fluoro-4-iodo-benzyl bromide (Intermediate 1, 2.56g, 8.15mmol) in ethanol (55mL and water (lOmL) was treated with sodium cyanide (2.15g, 43.86mmol) and refluxed for 0.5h. The volatiles were distilled off in vacuo and the residue was diluted with water and extracted with diethyl ether (x2). The combined organic extract was washed with water (xl) and brine (xl), dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title compound as a pale yellow solid (2.05g, 96%). Η-NMR (300 MHz, CDC13): δ 3.71(s, 3H), 7.16(t, J= 8.2Hz, 1H), 7.45(dd, J= 1.7, 9.1Hz, 1H), 7.51(dd, J= 1.5, 8.2Hz, 1H). 2-Fluoro-4-iodo-ρhenyl acetic acid (Intermediate s) A solution of 2-fluoro-4-iodo-ρhenyl acetonitrile (Intermediate 2, 2.05g, 7.83mmol) in ethanol (50mL and water (15mL) was treated with potassium hydroxide (3.4g, 60.7mmol) and refluxed for 4h. The volatiles were distilled off in vacuo and the residue was diluted with water and poured into cold, dilute hydrochloric acid and the precipitated solid was filtered. The solid was dissolved in diethyl ether, and the organic solution was dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title compound a pale yellow solid (1.75g, 79%). 'H-NMR (300 MHz, CDCl3):δ 3.64 (s, 2H), 6.98(t, J= 7.9Hz, 1H), 7.25- 7.46 (m, 2H), 9.60-10.40(br s, 1H). Ethyl-2-fluoro-4-iodo-phenyl acetate (Reagent C) A solution of 2-fluoro-iodo-phenyl acetic acid (Intermediate 3, 1.75g, 6.22mmol) in ethanol (50mL) and benzene (lOOmL) was treated with concentrated sulfuric acid (1.4mL) and heated at reflux overnight using a Dean-Stark water trap. The volatiles were distilled off in vacuo and the residue was diluted with water and diethyl ether. The phases were separated and the organic phase was washed with saturated aqueous sodium bicarbonate (xl), water (xl) and brine (xl), dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using 5%- 10% ethyl acetate in hexane as the eluent to afford the title compound as a pale yellow solid (1.4g, 73%). 'H-NMR (300 MHz, CDC13): δ 1.25 (t, J= 7.1Hz, 3H), 3.60 (s, 2H), 4.16 (q, J= 7.1Hz, 2H), 6.99(t, J = 8.0Hz, 1H), 7.39-7.44(m, 2H). Methyl-2-fluoro-4-iodo-phenyl acetate (Reagent H) A solution of 2-fluoro-4-iodo-ρhenyl acetonitrile (Intermediate 2, 3g, 11.45mmol) in methanol (50mL) and benzene (50mL) was treated with -toluene sulfonic acid (2.5g, 13.15mmol) and heated at reflux overnight using a Dean-Stark water trap. The volatiles were distilled off in vacuo and the residue was diluted with water and diethyl ether. The phases were separated and the organic phase was washed with saturated aqueous sodium bicarbonate (xl), water (xl) and brine (xl), dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using 6% ethyl acetate in hexane as the eluent to afford the title compound as a colorless oil (2.7g, 80%). 'H-NMR (300 MHz, CDC13): δ 3.62 (s, 2H), 3.70 (s, 3H), 6.99(t, J = 7.9Hz, 1H), 7.39-7.45(m, 2H). GENERAL PROCEDURE A: 7-Methoxy-l.l -dimethyl- 1.2.3.4- tetrahydronaphthalene (Intermediate s) A stirred, cooled (-40°C) solution of titanium tetrachloride in anhydrous dichloromethane (1M, 20mL) under argon, was treated with a solution of dimethyl zinc (2M, 40mL) in toluene. After 0.5h, a solution of 7- methoxy-1-tetralone (1.76g, lOmmol) in anhydrous dichloromethane (5mL) was cannulated into the reaction mixture and the resulting solution was allowed to warm to ambient temperature and stirred overnight. The reaction mixture was then cooled to -40°C and cautiously quenched with methanol (11 mL) . It was diluted with dichloromethane and saturated aqueous ammonium chloride solution. The phases were separated and the aqueous phase was extracted with dichloromethane (x2mL). The combined organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to the title compound (1.75g, 92%) as an oil. 'H-NMR (300 MHz, CDCl3):δ 1.33(s, 6H), 1.67-1.71(m, 2H), 1.79-1.90(m, 2H), 2.75(t, J = 6.2Hz, 2H), 3.83(s, 3H), 6.72(dd, J = 2.6, 8.3Hz, 1H), 6.93(d, J = 2.6Hz, 1H), 7.02(d, J = 8.3Hz, 1H). GENERAL PROCEDURE B : 6-Methoxy-4.4-dimethyl- 1.2.3.4- tetrahydronaphthalene- 1 -one (Intermediate 9) A solution of 7-methoxy- 1 , 1 -dimethyl- 1 ,2,3 ,4-tetrahydronaρhthalene (Intermediate 8, 1.65g, 8.7 rnmol) in 7.5mL of glacial acetic acid was cooled to 0°C and treated with a solution of chromium trioxide (2g, 20mmol) in 8mL of acetic acid and 7mL of water. The reaction mixture was then allowed to warm to ambient temperature and stirred overnight. It was diluted with water and extracted with diethyl ether (x2). The combined organic phase was washed with water (xl), saturated aqueous sodium bicarbonate (xl) and brine (xl), dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title compound (1.64g, 93%) as a yellow oil. Η-NMR (300 MHz, CDCl3):δ 1.34(s, 6H), 1.96(t, J = 7.1Hz, 2H), 2.64(t, J - 7.1Hz, 2H), 3.83(s, 3H), 6.77(dd, J = 2.6, 8.7Hz, 1H), 6.83(d, J = 2.5Hz, 1H), 7.98(d, J = 8.7Hz, 1H). 6-Hydroxy-4.4-dimethyl-1.2.3.4-tetrahvdronaphthalene-l-one (Intermediate 10) A stirred, cooled (-78°C) solution of 6-methoxy-4,4-dimethyl- 1 ,2,3 ,4- tetrahydronaphthalene-1-one (Intermediate 9, 0.8, 3mmol) under argon was treated with a 1M solution of boron trrbromide (lOmL). The reaction mixture was allowed to warm to ambient temperature and stirred overnight. The reaction mixture was cooled to -78°C, quenched and diluted with saturated aqueous sodium bicarbonate solution and the aqueous phase was extracted with dichloromethane (x2). The combined organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to an oil. Flash column chromatography over silica gel (230-400 mesh) using 30% ethyl acetate in hexane as the eluent afforded the title compound (0.3g, 52%o) as a yellow viscous oil. Η-NMR (300 MHz, CDCl3):δ 1.33(s, 6H), 1.97(t, J = 6.8Hz, 2H), 2.71(t, J = 6.7Hz, 2H), 6.81(dd, J = 2.3, 8.5Hz, 1H), 6.94(d, J = 2.3Hz, 1H), 7.98(d, J = 8.7Hz, 1H), 9.35(s, 1H). GENERAL PROCEDURE C: 4.4-Dimethyl-6-trifluoromethylsulfonyloxy- 1.2.3.4-tetrahydronaphthalene- 1 -one (Intermediate 11) A stirred, cooled (0°C) solution of 6-hydroxy-4,4-dimethyl- 1 ,2,3 ,4- terahydronaphthalene-1-one (Intermediate 10, 0.3g, 1.6mmol) in anhydrous dichloromethane ( 1 OmL) was treated with 4-(dimethylamino)pyridine (0.36g, 3.27mmol) followed by 2-[N,N'-bis(trifluoromethylsulfonyl)amino]- 5-chloropyridine (0.79g, 2mmol). After stirring at ambient temperature for 0.75h, the reaction mixture was diluted with dichloromethane and washed with water (xl). The organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to an oil. Flash column chromatography over silica gel (230-400 mesh) using 8-10% ethyl acetate in hexane as the eluent afforded the title compound (0.462g, 90%) as an off- white solid. 'H-NMR (300 MHz, CDC13): δ 1.36(s, 6H), 2.01(t, J = 6.8Hz, 2H), 2.70(t, J = 6.7Hz, 2H), 7.15(dd, J = 2.5, 8.7Hz, 1H), 7.28(d, J = 2.4Hz, 1H), 8.06(d, J = 8.7Hz, 1H). GENERAL PROCEDURE D: 4.4-Dimethyl-6-trimethylsilanyl-ethynyl- 1.2.3.4-tetrahvdronaphthalene- 1 -one (Intermediate 12) A solution of 4,4-dimethyl-6-trifluoromethy lsulfony loxy- 1 ,2,3 ,4- tetrahydronaphthalene- 1 -one (Intermediate 11, 0.46g, 1.43mmol) in triethyl amine (3mL) and anhydrous tetrahydrofuran (8mL) was treated with coρρer(I)iodide (O.lg, 0.53mmol) and sparged with argon for 5 minutes. Trirnethylsilyl acetylene (0.85mL, 6mmol) was then added followed by dichlorobis(triρhenylρhosphine)ρalladium(II) (0.25g, 0.36mmol). The resulting reaction mixture was heated at 70°C for 17h. It was then cooled to ambient temperature, diluted with diethyl ether and filtered over a bed of celite. The filtrate was evaporated vacuo to an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using 5% ethyl acetate in hexane as the eluent to afford the title compound (0.28g, 72%). 'H-NMR (300 MHz, CDC13): δ 0.26(s, 9H), 1.36(s, 6H), 1.99(t, J = 6.8Hz, 2H), 2.69(t, J = 6.7Hz, 2H), 7.35(dd, J = 1.7, 8.2Hz, 1H), 7.49 (unresolved d, 1H), 7.93(d, J = 8.1Hz, 1H). GENERAL PROCEDURE E: 6-Ethvnyl-4.4-dimethyl- 1.2.3.4- tetrahvdronphthalene- 1 -one (Intermediate 13) A solution of 4,4-dimethyl-6-trimethylsilanylethynyl- 1 ,2,3 ,4- tetrahydronaphthalene- 1 -one (Intermediate 12, 0.28g, 1.03mmol) in methanol (lOmL) was treated with potassium carbonate (0.74g, 5.35mmol) and stirred at ambient temperature for 4h. The volatiles were distilled off in vacuo and the residue was diluted with water and extracted with diethyl ether (x2). The combined organic extract was dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title compound (0.19g, 89%) as an oil that solidified on standing. 'H-NMR (300 MHz, CDCl3):δ 1.33(s, 6H), 1.96(t, J = 6.8Hz, 2H), 2.67(t, J = 6.8Hz, 2H), 3.25(S, 1H), 7.33(dd, J = 1.5, 8.1Hz, 1H), 7.49 (d, J = 1.5Hz, 1H), 7.13(d, J = 8.1Hz, 1H). GENERAL PROCEDURE F: 4-(8.8-Dimethyl-5-oxo-5.6.7.8-tetrahvdro- naρhthalene-2-yl-ethvnylVbenzoic acid ethyl ester (Intermediate 14) A solution of 6-ethynyl-4,4-dimethyl- 1 ,2,3 ,4-tetrahydronaρhthalene- 1-one (Intermediate 13, 0.23g, 1.lmmol) and ethyl-4-iodo benzoate (Reagent A, 0.36g, 1.3mmol) in triethyl amine (7mL) and anhydrous tetrahydrofuran (3mL) was treated with copper(I)iodide (0.114g, 0.6mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (0.23g, O.33mmol) was added and the reaction mixture was stirred overnight at room temperature. It was diluted with diethyl ether and filtered over a bed of celite. The filtrate was evaporated in vacuo to a brown oil that was subjected to flash column chromatography over silica gel (230-400 mesh) using 6-7% ethyl acetate in hexane as the eluent to afford the title compound (0.29g, 72%) as a pale brown solid. 'H-NMR (300 MHZ, CDC13): δ 1.3(t, J = 7.1Hz, 3H), 1.37(s, 6H), 1.80 (t, J = 6.8Hz, 2H), 2.69(t, J = 6.8Hz, 2H), 4.35(q, J = 7.1Hz, 2H), 7.40(dd, J = 1.5, 8.2Hz, 1H), 7.51 (d, J = 1.6Hz, 1H), 7.57 (d, J = 8.3Hz, 2H), 7.96(d, J = 8.2Hz, 1H), 7.99(d, J = 8.5Hz, 2H). GENERAL PROCEDURE G 4-(5-Cvclopropylamino-8.8-dimethyl-5.6.7.8- tetrahydro-naphthalene-2yl-ethynyl -benzoic acid ethyl ester (Compound 1, General Formula 4) A solution of 4-(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalene- -ylethynyl)-benzoic acid ethyl ester (Intermediate 14, 0.14g, 0.4mmol) in 3mL of dichloromethane and 2mL of acetonitrile was treated with cyclopropyl amine(lmL, 14.45mmol). After 5 minutes, acetic acid (lmL) was added followed by sodium cyanoborohydride (0.13g, 2mmol). The reaction was stirred overnight at ambient temperature. It was then diluted with water and saturated aqueous sodium carbonate solution and extracted with dichloromethane (x2). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to an oil. Flash column chromatography over silica gel (230-400 mesh) using 20% ethyl acetate in hexane as the eluent afforded the title compound (O.lg, 62%) as a pale yellow solid. 'H-NMR (300 MHz, CDC13): δ 0.30-0.60(m, 4H), 1.28(s, 3H), 1.35 (s, 3H), 1.30(t, J = 7.1Hz, 3H), 1.55-1.61(m, IH), 1.83-2.05(m, 3H), 2.25 (quintet, J = 3.0 Hz, IH), 3.80 (t, J = 4.9Hz, IH), 4.39(q, J = 7.1Hz, 2H), 7.27-7.36(m, 2H), 7.52 (s, IH), 7.55(d, J~ = 8.3Hz, 2H), 8.03(d, J = 8.5Hz, 2H). GENERAL PROCEDURE H 4-r(5-Cvclopropyl-methyl-amino>8.8- dimethyl-5.6.7.8-tetrahydro-naphthalene-2-ylethynyl]-benzoic acid ethyl ester (Compound 2, General Formula 4) A solution of 4-(5-cyclopropylamino-8,8-dimethyl-5,6,7,8-tetrahydro- naρhthalene-2-ylethynyl)-benzoic acid ethyl ester (Compound 1, 0.064g, O.lδmmol) in acetone (2mL) was treated with potassium carbonate (0.6g, 4.34mmol) and methyl iodide (lmL, 16mmol) and stirred overnight at ambient temperature. The volatiles were distilled off in vacuo and the residue was diluted with water and extracted with dichloromethane (x2). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford the title compound (0.065g, 99%). 'H-NMR (300 MHz, CDC13): δ 0.28-0.49 (m, 4H), 1.21(s, 3H), 1.26 (s, 3H), 1.33 (t, J = 7.1Hz, 3H), 1.58-1.73 (m, 2H), 1.83-1.89 (m, 2H), 2.02-2.08 (m, IH), 2.06 (s, 3H), 3.88 (t, J = 8.1Hz, IH), 4.32(q, J = 7.1Hz, 2H), 7.20(d, J = 7.8Hz, IH), 7.41 (s, IH), 7.46 (d, J = 7.8Hz, IH), 7.52(d, J = 8.4Hz, 2H), 8.03(d, J = 8.3Hz, 2H). GENERAL PROCEDURE I: 4-[(5-Cvclonropyl-methyl-amino)-8,8- dimethyl-5.6.7.8-tetrahydro-naphthalene-2yl-ethvnvn-benzoic acid (Compound 3, General Formula 4) A solution of 4-[(5-cycloρroρyl- methyl-amino)-8,8-dimethyl-5,6,7,8-tetrahydro-naρhthalene-2-ylethynyl]- benzoic acid ethyl ester (Compound 2, 0.065g, 0.158mmol) in ethanol (lmL) and tetrahydrofuran (lmL) was treated with 1M aqueous sodium hydroxide solution (lmL) and heated at 80°C for lh. The volatiles were distilled off in vacuo and the residue was diluted with saturated aqueous ammonium chloride solution and extracted with ethyl acetate (x2). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford a solid that was washed with dichoromethane and dried to afford the title compound (0.029g, 38%) as a white solid. 'H-NMR (300 MHz, CD3COCD3): δ 0.35-0.5 l(m, 4H), 1.26(s, 3H), 1.29 (s, 3H), 1.60-1.82(m, 2H), 1.88-2.02(m, 2H), 2.02-2.15 (m, IH), 2.10 (s, 3H), 3.93 (t, J = 8.0Hz, IH), 7.26(dd, J = 1.5, 8.2Hz, 1H), 7.51 (d, J = 1.5Hz, IH), 7.52(d, J = 8.2Hz, IH), 7.62(d, J = 8.5Hz, 2H), 8.02(d, J = 8.2Hz, 2H). 4-r(8.8-Dimethyl-5-oxo-5.6.7.8-tetrahvdro-naphthalene-2-yl-ethvnylV phenyl] -acetic acid methyl ester (Compound 4, General Formula 8) Following general procedure F and using 6-ethynyl-4,4-dimethyl- 1,2,3,4-tetrahydronaphthalene-l-one (Intermediate 13, 0.312g, 1.5mmol), 4-iodo phenyl acetic acid methyl ester (Reagent B, 0.50g, 1.8mmol), triethyl amine (7mL), anhydrous tetrahydrofuran (3mL), coρρer(I)iodide (0.04g, 0.2mmol) and dichlorobis(triρhenylρhosphine)palladium(II) (0.15g, 0.213mmol) followed by flash column chromatography over silica gel (230- 400 mesh) using 16-20% ethyl acetate in hexane as the eluent, the title compound was obtained as a pale yellow solid (0.42g, 76%). 'H-NMR (300 MHz, CDCl3):δ 1.42(s, 6H), 2.04(t, J = 6.7Hz, 2H), 2.74(t, J = 6.7Hz, 2H), 3.66(s, 2H), 3.71(s, 3H), 7.29 (d, J = 8.2Hz, 2H), 7.43(dd, J = 1.5, 7.9Hz, IH), 7.52 (d, J = 8.2Hz, 2H), 7.57 (d, J = 1.5Hz, IH), 8.00(d, J = 8.2Hz, IH). GENERAL PROCEDURE J: 4-[(8.8-Dimethyl-5-oxo-5.6.7.8-tetrahydro- naphthalene-2-yl-ethynylVphenyl]-acetic acid (Compound 5, General Formula 8) A solution of 4-[(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalene- 2-yIethynyl)-phenyl]-acetic acid methyl ester (Compound 4, O.lg, 0.28mmol) in a mixture of methanol (2mL), tetrahydrofuran (3.5mL) and water (1.5mL) was treated with lithium hydroxide monohydrate (0.1 lg, 2.62mmol) and the resulting reaction mixture was stirred at ambient temperature for 3h. The volatiles were distilled off in vacuo and the residue was diluted with water and dilute hydrochloric acid and extracted with ethyl acetate (x3). The combined organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford the title compound as a pale yellow solid (0.088g, 92%). Η-NMR (300 MHz, CDC13): δ 1.41(s, 6H), 2.02(t, J = ό.lllz, 2H), 2.74(t, J = 6.8Hz, 2H), 3.68(s, 2H), 7.28 (d, J = 8.2Hz, 2H), 7.42(dd, J = 1.5, 8.2Hz, IH), 7.52 (d, J = 8.2Hz, 2H), 7.56 (d, J = 1.5Hz, IH), 7.99(d, J = 8.2Hz, IH). 4-[(5-(Cvclorjropyl-aminoV8.8-dimethv1- 5.6.7.8-tetrahvdro-naphthalene-2- yl-ethvnviyphenyll-acetic acid methyl ester (Compound 6, General Formula 4) Following general procedure G and using 4-[(8,8-dimethyl-5-oxo- 5,6,7,8-tetrahydro-naρhthalene-2-yl-ethynyl)-ρhenyl]-acetic acid methyl ester (Compound 4, 0.2g, 0.54mmol), dichloromethane (4mL), acetonitrile(2mL), cyclopropyl amine(lmL, 14.45mmol), acetic acid (lmL)and sodium cyanoborohydride (0.16g, 2.54mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 30% ethyl acetate in hexane as the eluent the title compound was obtained as a pale yellow oil (0.22g, 99%). 'H-NMR (300 MHz, CDC13): δ 0.38-0.60 (m, 4H), 1.26(s, 3H), 1.33(s, 3H), 1.50-1.59(m, IH), 1.79-2.10 (m, 3H), 2.25(m, IH), 3.63(s, 2H), 3.69(s, 3H), 3.79(t, J = 4.8Hz, IH), 7.20-7.32 (m, 4H), 7.47(s, IH), 7.58(d, J = 8.2Hz, 2H). 4-[(5-(Cyclopropyl-methyl-amino)-8.8-dimethyl- 5.6.7.8-tetrahydro- naphthalene-2-yl-ethynylVphenylI-acetic acid methyl ester (Compound 7, General Formula 4) Following general procedure H and using 4-[(5-(cyclopropyl-amino)- . 8,8-dimethyl- 5,6,7,8-tetrahydro-naphthalene-2-ylethynyl)-phenyl]-acetic acid methyl ester (Compound 6, 0.15g, 0.37mmol), acetone (5mL), potassium carbonate (l.lg, 7.95mmol) and methyl iodide (lmL, 16mmol), the following work-up was used. The volatiles were distilled off in vacuo and the residue was diluted with water and extracted with dichloromethane (x2). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford the title compound (0.148g, 97%). 'H-NMR (300 MHz, CDC13): δ 0.38-0.58(m, 4H), 1.27(s, 3H), 1.31 (s, 3H), 1.68-1.81(m, 2H), 1.85-1.98(m, 2H), 2.08-2.15 (m, 1H), 2.12 (s, 3H), 3.62(s, 2H), 3.69(s, 3H), 3.94 (t, J = 7.9Hz, IH), 7.24(d, = 8.2Hz, IH), 7.24 (d, J = 8.2Hz, 2H), 7.44-7.5 l(m, 4H). 4-[(5-(Cyclopropyl-methyl-amino -8.8-dimethyl- 5.6.7.8-tetrahydro- naphthalene-2-yl-ethynylVphenyl]-acetic acid (Compound 8, General Formula 4) Following general procedure J and using 4-[(5-(cyclopropyl-methyl- amino)-8,8-dimethyl-5,6,7,8-tetrahydro-naρhthalene-2ylethynyl)-ρhenyl]- acetic acid methyl ester (Compound 7, 0.148g, 0.357mmol), methanol (2mL), tetrahydrofuran (4mL), water (lmL) and lithium hydroxide monohydrate (0.25g, 5.95mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 30-75%) ethyl acetate in hexane as the eluent, the title compound was obtained as a white solid (0.08g, 56%). 'H-NMR (300 MHz, CDC13): δ 0.52-0.54(m, 2H), 0.68-0.70(m, 2H), 1.27(s, 3H), 1.29(s, 3H), 1.63-1.80(m, 2H), 1.95-2.17(m, 2H), 2.19-2.24(m, IH), 2.24(s, 3H), 3.60(s, 2H), 4.18(t, J = 7.7Hz, IH), 7.24(dd, J - 1.5, 8.2Hz, IH), 7.26 (d, J = 8.2Hz, 2H), 7.43 (d, J = 8.2Hz, IH), 7.47(s, IH), 7.47(d, J - 8.2Hz, 2H), 10.37(br s, IH). 2-Fluoro-4-r(8.8-dimethyl-5-oxo-5.6.7.8-tetrahvdro-naphthalen-2-yl- ethvnyllbenzoic acid ethyl ester (Compound 9, General Formula 8) A solution of 4,4-dimethyl-6-trifluromethy lsulfony loxy- 1,2,3,4- tetrahydronaphthalene- 1 -one (Intermediate 11, 0.3g, 0.9mmol), coρper(I)iodide (0.057g, 0.3mmol) and ethyl-2-fluoro-4-ethynyl-benzoate (Reagent D, 0.44g, 2.27mmol) in triethyl amine (2mL) and tetrahydrofuran (3mL) was sparged with argon for 5 minutes and treated with dichlorobis(triρheny lphosphine)ρalladium(II) (0.135 g, 0.192mmol) and stirred at room temperature overnight and then refluxed for 2h. It was then cooled to ambient temperature, diluted with diethyl ether and filtered over a bed of celite. The filtrate was evaporated in vacuo to an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using 10-15%o ethyl acetate in hexane as the eluent to afford the title compound as a yellow solid (0.22g, 67%>). 'H-NMR (300 MHz, CDC13): δ 1.38 (t, J = 7.0Hz, 3H), 1.39(s, 6H), 2.01(t, J = 6.7Hz, 2H), 2.71(t, J = 6.7Hz, 2H), 4.37(q, J= 7Hz, 2H), 7.28(dd, J= 0.9, 10Hz, IH), 7.34(dd, J- 0.9, 8.2Hz, IH), 7.41 (άά, J = 1.5, 8.2Hz, IH), 7.57(d, J = 0.9Hz), 7.90(t, J= 7.9Hz, IH), 7.93 (d, J= 7.9Hz, IH). 2-Fluoro-4-(8.8-dimethyl-5-oxo-5.6.7.8-tetrahvdro-naphthalen-2yl-ethvnyl - benzoic acid (Compound 10, General Formula 8) A solution of 2-fluoro-4-(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro- naphthalen-2-ylethynyl)benzoic acid ethyl ester (Compound 9, O.lg, 0.274mmol) in ethanol(4mL), methanol (2mL) and tetrahydrofuran (2mL) was treated with IM aqueous sodium hydroxide solution and heated at 70°C for lh. The volatiles were distilled off in vacuo and the residue was diluted with water and dilute hydrochloric acid and extracted with ethyl acetate (x2). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford a solid that was recrystallized from hot aqueous acetonitrile to afford the title compound (0.025g, 27%>). Η-NMR (300 MHz, CDC13): δ 1.43(s, 6H), 2.05(t, J = 6.9Hz, 2H), 2.76(t, J = 6.9Hz, 2H), 7.26-7.47(m, 3H), 7.60(d, J = 1.1Hz, IH), 7.99-8.05(m, 2H). 4-r5-(Cvclopropyl-amino)-8.8-dimethyl- 5.6.7.8-tetrahydro-naphthalene-2- yl-ethynyl]-2-fluoro-benzoic acid ethyl ester (Compound 11, General Formula 4) Following general procedure G and using 2-fluoro-4-(8,8-dimethyl-5- oxo-5,6,7,8-tetrahydro-naphthalene-2-ylethynyl)-benzoic acid ethyl ester (Compound 9, 0.132g, 0.3mmol), dichloromethane (4mL), acetonitrile(2mL), cyclopropyl amine(lmL, 14.45mmol), acetic acid (lmL)and sodium cyanoborohydride (0.18g, 2.86mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 16-20% ethyl acetate in hexane as the eluent, the title compound was obtained as a pale yellow oil (O.lg, 82%). 'H-NMR (300 MHz, CDCl3):δ 0.36-0.54 ( , 4H), 1.27(s, 3H), 1.33(s, 3H), 1.40(t, J= 7.0Hz, 3H), 1.54-1.61(m, 2H), 1.82-2.05 (m, 2H), 2.26(m, IH), 3.79 (t, J = 4.9Hz, IH), 4.39(q, J= 7.1Hz, 2H), 7.26-7.50(m, 4H), 7.87(s, IH), 7.92 (t, J= 7.9Hz, IH). 4-[5-(Cyclopropyl-methyl-amino -8.8-dimethyl- 5.6.7.8-tetrahydro- naphthalene-2-yl-ethvnyl]-2-fluoro benzoic acid ethyl ester (Compound 12, General Formula 4) Following general procedure H and using 4-[5-(cyclopropyl-methyl- amino)-8,8-dimethyl- 5,6,7,8-tetrahydro-naphthalene-2-ylethynyl]-2-fluoro- benzoic acid ethyl ester (Compound 11, 0. Ig, 0.246mmol), acetone (4mL), potassium carbonate (0.917g, 6.63mmol) and methyl iodide (0.8mL, 1 lmmol), the following work-up was used. The volatiles were distilled off in vacuo and the residue was diluted with water and extracted with dichloromethane (x2). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to an oil. Flash column chromatography over silica gel (230-400 mesh) using 8-10% ethyl acetate in hexane as the eluent afforded the title compound as a pale yellow oil (0.102g, 98%). 'H-NMR (300 MHz, CDC13): δ 0.39-0.62 (m, 4H), 1.29(s, 3H), 1.34(s, 3H), 1.42(t, J= 6.9Hz, 3H), 1.65-1.82(m, 2H), 1.85-2.02 (m, 2H), 2.02-2.10(m, IH), 2.15(s, 3H), 3.97(t, J = 7.7Hz, IH), 4.42(q, J= 7.0Hz, 2H), 7.28-7.36 (m, 3H), 7.59(s, IH), 7.55(d, J = 7.9Hz, 2H), 7.92 (t, J= 7.5Hz, IH). 4-[5-rCvclopropyl-methv1-aminoV8.8-dimethyl- 51617.8-tetrahvdro- naphthalene-2-yl-ethvnyl1-2-fluoro benzoic acid (Compound 13, General Formula 4) Following general procedure I and using 4-[(5-cycloproρyl-methyl- amino)-8,8-dimethyl-5,6,7,8-tetrahydro-naρhthalene-2-ylethynyl]-2-fluoro- benzoic acid ethyl ester (Compound 12, 0.102g, 0.23mmol), ethanol (4mL) and IM aqueous sodium hydroxide solution (2mL) followed by flash column chromatography over silica gel (230-400 mesh) 30% ethyl acetate in hexane as the eluent, the title compound was obtained as an off-white solid(0.015g, 16%). 'H-NMR (300 MHz, CDC13): δ 0.54-0.65 (m, 4H), 1.29 (s, 3H), 1.32 (s, 3H), 1.68-1.83 (m, 2H), 1.97-2.05 (m, 2H), 2.18-2.25 (m, IH), 2.25 (s, 3H), 4.13 (t, J = 6.1Hz, IH), 7.26-7.30 (m, 2H), 7.34 (dd, J= 1.5, 7.9Hz, IH), 7.48 (d, J= 1.8Hz, IH), 7.60 (d, J= 8.5Hz, IH), 7.95 (t, J = 7.9Hz, IH). r2-Fluoro-4-(8.8-dimethyl-5-oxo-5.6.7.8-tetrahvdro-naphthalene-2-yl- ethynvD-phenyl] acetic acid ethyl ester (Compound 14, General Formula 8) Following general procedure F and using 6-ethynyl-4,4-dimethyl- 1,2,3,4-tetrahydro-naphthalene-l-one (Intermediate 13, 0.298g, 1.43mmol), 2-fluoro-4-iodo phenyl acetic acid ethyl ester (Reagent C, 0.44g, 1.43mmol), triethyl amine (Intermediate 13, 3mL), anhydrous tetrahydrofuran (7mL), copper(I)iodide (0.04g, 0.2mmol) and dichlorobis(triρhenylphosρhine)palladium(II) (0.15g, 0.213mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 14- 16% ethyl acetate in hexane as the eluent, the title compound was obtained as an oil (0.43g, 77%). 'H-NMR (300 MHz, CDC13): δ 1.26(t, J= 7.2Hz, 3H), 1.41(s, 6H), 2.04(t, J = 6.7Hz, 2H), 2.74(t, J = 6.7Hz, 2H), 3.68(s, 2H), 4.18(q, J= 7.1Hz, 2H), 7.23-7.57(m, 4H), 7.59 (d, J = 1.5Hz, IH), 7.99(d, J = 7.9Hz, IH). [2-Fluoro-4-(8.8-dimethyl-5-oxo-5.6.7.8-tetrahvdro-naphthalene-2-yl- ethvnyDphenyll-acetic acid (Compound 15, General Formula 8) Following general procedure J and using [2-fluoro-4-(8,8-dimethyl-5- oxo-5,6,7,8-tetrahydro-naphthalene-2-ylethynyl)phenyl]acetic acid methyl ester (Compound 14, 0.18g, 0.48mmol), methanol (4mL), tetrahydrofuran (8mL), water (2mL) and lithium hydroxide monohydrate (0.2g, 4.76mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 50- 100% ethyl acetate in hexane as the eluent, the title compound was obtained as a dirty white solid (0.068g, 41 %). 'H-NMR (300 MHz, CDC13): δ 1.41(s, 6H), 2.03(t, J = 6.7Hz, 2H), 2.74(t, J = 6.8Hz, 2H), 3.73(s, 2H), 7.24-7.32(m, 3H), 7.42(dd, J - 1.5, 7.9Hz, IH), 7.56 (s, IH), 7.99(d, J = 7.9Hz, IH), 9.40-10.00 (br s, IH). |"4-(5-(Cvclopropyl-aminoV8.8-dimethyl- 5.6.7.8-tetrahydro-naphthalene-2- yl-ethvnylV2-fluoro-phenyl1 acetic acid ethyl ester (Compound 16, General Formula 4) Following general procedure G and using [2-fluoro-4-(8,8-dimethyl- 5-oxo-5,6,7,8-tetrahydro-naphthalene-2-ylethynyl) phenyl]acetic acid ethyl ester (Compound 14, 0.258g, 0.68mmol), dichloromethane (4mL), acetonitrile(2mL), cyclopropyl amine(lmL, 14.45mmol), acetic acid (lmL)and sodium cyanoborohydride (0.266g, 4.23mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 16-20-25%) ethyl acetate in hexane as the eluent , the title compound was obtained as a pale yellow oil (0.2 lg, 73%). Η-NMR (300 MHz, CDCl3):δ 0.35-0.54 (m, 4H), 1.25(t, J= 7.1Hz, 3H), 1.26(s, 3H), 1.32(s, 3H), 1.53-1.64(m, IH), 1.82-2.05 (m, 3H), 2.21-2.28(m, IH), 3.65(s, 2H), 3.78(t, J- 5.0Hz, IH), 4.17(q, J= 7.1Hz, 2H), 7.19-7.41 (m, 5H), 7.47(d, J = 1.5Hz, IH). [4-(5-(Cvcloρroρyl-methyl-aminoV8.8-dimethyl-5.6.7.8-tetrahvdro- naphthalene-2-yl-ethvnv -2-fluoro-ρhenyll-acetic acid ethyl ester (Compound 17, General Formula 8) Following general procedure H and using [4-((5-cy clopropy 1-amino)- 8,8-dimethyl- 5,6,7,8-tetrahydro-naphthalene-2ylethynyl)-2-fluoro- phenyl] acetic acid ethyl ester (Compound 16, 0.2 lg, 0.5mmol), acetone (5mL), potassium carbonate ( 1.13 g, 8.17mmol) and methyl iodide (0.5mL, 8mmol), the following work-up was used. The volatiles were distilled off in vacuo and the residue was diluted with water and extracted with dichloromethane (x2). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford an oil. Flash column chromatography over silica gel (230-400 mesh) using 8% ethyl acetate in hexane as the eluent afforded the title compound (0.15g, 69%). 'H-NMR (300 MHz, CDC13): δ 0.39-0.53(m, 4H), 1.27(s, 3H), 1.31 (s, 3H), 1.66-1.81(m, 2H), 1.89-2.05(m, 2H), 2.08-2.13 (m, IH), 2.13 (s, 3H), 3.62(s, 2H), 3.94 (t, J = 8.0Hz, IH), 4.16(q, J= 7.1Hz, 2H), 7.20-7.29(m, 4H), 7.44(d, J = 1.5Hz, IH), 7.51 (d, J - 8.2Hz, IH). r4-r5-(Cvcloproρyl-methyl-aminoV8.8-dimethyl- 5.6.7.8-tetrahvdro- naphthalene-2-yl-ethvnyl -2-fluoro-phenvn-acetic acid (Compound 18, General Formula 4) Following general procedure J and using [4-(5-(cyclopropyl-methyl- amino)-8,8-dimethyl- 5,6,7,8-tetrahydro-naphthalene-2-ylethynyl)-2-fluoro- ρhenyl]-acetic acid ethyl ester (Compound 17, 0.025g, 0.059mmol), methanol (lmL), tetrahydrofuran (lmL), water (0.5mL) and lithium hydroxide monohydrate (0.060g, 1.43mmol), the title compound was obtained as a white solid (0.023g, 95%). 'H-NMR (300 MHz, CDCl3):δ 0.52-0.54(m, 2H), 0.68-0.70(m, 2H), 1.27(s, 3H), 1.29(s, 3H), 1.63-1.80(m, 2H), 1.95-2.17(m, 2H), 2.19-2.24(m, IH), 2.24(s, 3H), 3.60(s, 2H), 4.18(t, J = 7.7Hz, IH), 7.19-7.28(m, 4H), 7.45 (d, J = 1.5Hz, IH), 7.49(d, J = 8.2Hz, IH), 8.80-9.20(br s, IH). GENERAL PROCEDURE K: 8.8-Dimethyl-5.6.7.8-tetrahydro-naphthalene- 1 -one-2-carboxylic acid-4-(te t-butoxycarbonylmethyl)phenyl ester Compound 19, General Formula 8) A solution of 4,4-dimethyl-6-trifluoromethylsulfonyloxy- 1 ,2,3 ,4- tetrahydronaphthalene- 1 -one (Intermediate 11, 0.14g, 0.434mmol), t-butyl- 4-hydroxy-phenyl acetate (Reagent E, 0.14g, 0.673mmol), palladium acetate (0.054g, 0.24mmol) and l,3-bis(diρhenylρhosphino)proρane (0.082g, 0.2mmol) in a mixture of dimethylsulfoxide ( 1 mL), 1 ,2-dichloroethane (1.5mL) and triethyl amine (lmL) was heated at 70°C under an atmosphere of carbon monoxide overnight. The volatiles were distilled of in vacuo and the residue was diluted with water and extracted with diethyl ether (x3). The combined organic extract was dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using 15% ethyl acetate in hexane as the eluent to afford the title compound (0.11 g, 53%). 'H-NMR (300 MHz, CDC13): δ 1.44(s, 3H), 1.44(s, 9H), 1.46 (s, 3H), 2.07(t, J= 6.9Hz, 2H), 2.76(t, J= 6.8Hz, 2H), 3.55(s, 2H), 7.17 (d, J - 8.5Hz, 2H), 7.35(d, J = 8.5Hz, 2H), 8.05-8.13(m, 2H), 8.25 (d, J = 1.5Hz, IH). 8.8-Dimethyl-5-oxo-5.6.7.8-tetrahvdro-naphthalene-2-carboxylic acid-4- (carboxymethynphenyl ester (Compound 20, General Formula 8) A solution of 8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naρhthalene-2- carboxylic acid 4-(ter/-butoxycarbonylmethyl)ρhenyl ester (Compound 19, 0.11 g, 0.229mmol) in dichloromethane (2mL) was treated with trifluoroacetic acid (0.85mL and stirred at ambient temperature for 2.5h. The volatiles were distilled off in vacuo and the residue was diluted with water and extracted with ethyl acetate (x3). The combined organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford a solid which was subjected to flash column chromatography over silica gel (230-400 mesh) using ethyl acetate as the eluent to afford the title compound (0.024g, 25%). 'H-NMR (300 MHz, CDC13): δ 1.46 (s, 6H), 2.08(t, J = 6.7Hz, 2H), 2.80(t, J = 6.7Hz, 2H), 3.70(s, 2H), 7.20(d, J= 8.5Hz, 2H), 7.37(d, J= 8.5Hz, 2H), 8.08(dd, J = 1.4, 8.2Hz, IH), 8.14 (d, J = 8.2Hz, IH), 8.24 (d, J = 1.2Hz, IH). 5-Methoxy-3.3-dimethyl-indane (Intermediate 15) Following general procedure A and using titanium tetrachloride (5.5mL,50mmoL), anhydrous dichloromethane (80mL), 2M solution dimethyl zinc (5 OmL) in toluene and a solution of 6-methoxy-indane- 1 -one (4.05g, 25mmol) in dichloromethane (lOmL) the title compound was obtained as an oil (3.13g, 71%>). 'H-NMR (300 MHz, CDCl3):δ 1.37 (s, 6H), 2.04(t, J = 7.2Hz, 2H), 2.94(t, J = 7.2Hz, 2H), 3.89(s, 3H), 6.82(d, /= 2.1Hz, IH), 7.28(dd, J = 2.1, 7.0Hz, 1H), 7.35 (d, J = 7.0Hz, IH). 5-Methoxy-3.3-dimethyl-indane-l-one (Intermediate 16) Following general procedure B and using 5-methoxy-3,3-dimethyl indane (Intermediate 15, 3.13 g, 17.78mmol) in 20mL of glacial acetic acid and a solution of chromium trioxide (3.91g, 39.1mmol) in 20mL of acetic acid and 20mL of water the title compound was obtained as a viscous yellow oil (3.3g, 97%). 'H-NMR (300 MHz, CDCl3):δ 1.37 (s, 6H), 2.54 (s, 2H), 3.87(s, 3H), 6.86- 6.87 (m, 2H), 7.60 (d, J = 7.0Hz, IH). 6-Methoxy-4.4-dimethyl- 1.2.3.4-tetrahvdro-isoαuinoline- 1 -one (Intermediate 17) A solution of 5-methoxy-3,3-dimethyl-indane-l-one (Intermediate 16, 3.3g, 17.4mmol) in benzene (50mL) was treated with concentrated sulfuric acid (lOmL) and heated to 60°C. Sodium azide (1.95g, 30mmol) was added in small portions and after the addition was complete, the reaction mixture was heated further for 4h. It was then cooled, diluted with water and extracted with chloroform (x3). The combined organic phase was dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title compound as a brown solid (3.5g, quantitative by weight). 'H-NMR (300 MHz, CDC13): δ 1.31 (s, 6H), 3.28 (s, 2H), 3.83(s, 3H), 6.78 (d, J = 2.6Hz, IH), 6.82(dd, J = 2.6Hz, 8.5Hz, IH), 7.59 (s, IH), 8.02 (d, J= 8.2Hz, IH). 6-Methoxy-4.4-dimethyl- 1.2.3.4-tetrahvdro-isoquinoline (Intermediate 18) A solution of 6-methoxy-4,4-dimethy 1- 1 ,2,3 ,4-tetrahy dro- isoquinoline- 1 -one (Intermediate 17, 3.5g, 17mmol) in lOOmL of anhydrous tetrahydrofuran was treated with lithium aluminum hydride (1 ,3g, 34.25mmol) in small portions and the resulting suspension was refluxed for 3 hours under argon. The reaction mixture was then cooled in an ice bath and cautiously quenched with saturated aqueous sodium sulfate solution and the resulting slurry was filtered and the filter-cake washed well with ethyl acetate. The filtrate and washings were evaporated in vacuo to a brown oil which was dissolved in chloroform, the solution was dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title compound (3.2g, ~100%). Η-NMR (300 MHz, CDC13): δ 1.27 (s, 6H), 2.22 (s, IH), 2.84 (s, 2H), 3.79 (s, 3H), 3.95 (s, 2H), 6.68(dd, J = 2.4Hz, 8.3Hz,lH), 6.86(d, J" = 2.4Hz, IH), 6.91 (ά, J= 8.3Hz, IH). 6-Methoxy-4.4-dimethyl-1.2.3.4-tetrahvdro-isoquinoline-2-carbaldehvde (Intermediate 19) A solution of 6-methoxy-4,4-dimethy 1- 1 ,2,3 ,4-tetrahy dro-isoquinoline (Intermediate 18, 3.2g, 16.7mmol) in anhydrous dichloromethane (40mL) was treated with formic acid (lmL, 26.5mmol) followed l-(3- dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (3.9g, 20.34mmol) and the resulting solution was stirred at ambient temperature overnight. It was then diluted with chloroform and washed with water (xl) and brine (xl), dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title compound as pale brown viscous oil (3.26g, 90%>). 'H-NMR (300 MHz, CDC13): δ 1.28 (s, 6H), 3.32 (s, 0.7H), 3.54 (s, 0.3H), 3.79(s, 3H), 4.54 (s, 0.3H), 4.66(s, 0.7H), 6.71(dd, J = 2.6Hz, 8.2Hz, IH), 6.85-6.97(m, IH), 7.02-7.27(m, IH), 8.15(s, 0.7H), 8.34(s, 0.3H), 8.40-8.80 (br s, IH). 6-Hvdroxy-4.4-dimethyl- 1.2.3 ,4-tetrahy dro-isoquinoline-2-carbaldehvde (Intermediate 20) A stirred, cooled (-78°C) solution of 6-methoxy-4,4- dimethyl-l,2,3,4-tetrahydro-isoquinoline-2-carbaldehyde (Intermediate 19, 3.26g, 15mmol) in anhydrous dichloromethane (15mL) was treated with IM solution of boron tribromide in dichloromethane (50mL) stirred at ambient temperature for 3h. It was then cooled again to 78°C and quenched carefully with saturated aqueous sodium carbonate solution, diluted with water and the aqueous phase was extracted with ethyl acetate (x2). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford the title compound as a solid foam (3g, 99%). 'H-NMR (300 MHz, CDC13): δ 1.23 (s, 6H), 3.31 (s, 0.7H), 3.54 (s, 0.3H), 4.51 (s, 0.3H), 4.64 (s, 0.7H), 6.70-6.75(m, IH), 6.84-6.90(m, 2H), 7.50- 7.80(br s, IH), 8.12(s, 0.7H), 8.32(s, 0.3H). 2-Cy clopropy l-6-hvdroxy-4.4-dimethyl -1.2.3.4-tetrahvdro-isoquinoline (Intermediate 21) A stirred, cooled (0°C)solution of 6-hydroxy-4,4-dimethyl- 1 ,2,3 ,4- tetrahydro-isoquinoline-2-carbaldehyde (Intermediate 20, 2.3 g, 11.2 lmmol) in anhydrous tetrahydrofuran (40mL) under argon was treated with titanium tetra-wo-propoxide (8.28mL, 28mmol) followed by 3M solution of ethyl magnesium bromide in diethyl ether (18.7mL) and the reaction mixture was then heated at 55°C overnight. It was then cooled in an ice-bath, quenched with saturated aqueous ammonium chloride solution and extracted with diethyl ether (x2). The combined organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford a yellow oily solid. Flash column chromatography over silica gel (230-400 mesh) using 10-20% ethyl acetate in hexane as the eluent afforded the title compound as a pale yellow solid (1.55g, 63%). 'H-NMR (300 MHz, CD3COCD3): δ 0.016-0.16(m, 4H), 0.847 (s, 6H), 1.37 (m, IH), 2.20(s, 2H), 3.25 (s, 2H), 6.22(dd, J= 2.4, 8.2Hz, IH), 6.41(d, J= 2.6Hz, IH), 6.47(d, J= 8.2Hz, IH), 7.62(s, IH). 2-Cvclopropyl-4.4-dimethyl-6-trifluoromethylsulfonyloxy- 1.2.3.4- tetrahydro-isoquinoline (Intermediate 22) Following general procedure C and using 2-cyclopropyl-6-hydroxy- 4,4-dimethy 1-1, 2,3 ,4-tetrahy dro-isoquinoline (Intermediate 21, 1.5g, 6.9mmol) in anhydrous dichloromethane (30mL), triethyl amine (1.5mL, 10.39mmol) and [N,N'-bis(trifluoromethylsulfonyl)amino]-5-chloropyridine (2.75g, 7mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 8% ethyl acetate in hexane as the eluent the title compound was obtained (2.23g, 92%) as oil. Η-NMR (300 MHz, CDC13): δ 0.42-0.54(m, 4H), 1.25(s, 6H), 1.76(m, IH), 2.62(s, 2H), 3.74(s, 2H), 6.98(dd, J = 2.3, 8.4Hz, IH), 7.16(d, J= 8.2Hz, IH), 7.14(d, J = 2.3Hz, IH). Ethyl-2-cvcloproρyl-4.4-dimethyl-1.2.3.4-tetrahvdroisoquinoline-6- carboxylate (Intermediate 23) Following general procedure K and using 2-cyclopropyl-4,4- dimethyl-6-trifluoromethylsulfonyloxy-l,2,3,4-tetrahydro-isoquinoline (Intermediate 22, 1.6g, 4.6mmol), palladium acetate (0.127g, 0.56mmol), 1 ,3 -bis(dipheny lphosphino)propane (0.160g, 0.39mmol), dimethy Isulfoxide (2mL), 1,2-dichloroethane (5mL), triethyl amine (2mL) , ethanol (5mL) and an atmosphere of carbon monoxide followed by flash column chromatography over silica gel (230-400 mesh) using 10%> ethyl acetate in hexane as the eluent the title compound was obtained as an oil (lg, 79%>). 'H-NMR (300 MHz, CDCl3):δ 0.44-0.54(m, 4H), 1.27(s, 6H), 1.38 (t, J = 7Hz, 3H), 1.73(m, IH), 2.62(s, 2H), 3.76(s, 2H), 4.35 (q, J = 7.1Hz, 2H), 7.04(d, J = 7.9Hz, IH), 7.74 (dd, J = 1.7, 7.9Hz, IH), 7.97(d, J = 1.8Hz, IH). 2-Cvcloρropyl-6-hvdroxymethyl-4.4-dimethyl- 1.2.3.4-tetrahvdroisoquinoline (Intermediate 24) A stirred cooled (-78°C)solution of ethy 1-2-cy clopropy 1-4,4-dimethy 1- 1,2,3,4-tetrahydro isoquinoline-6-carboxylate (Intermediate 23, lg, 3.66mmol) in anhydrous dichloromethane (20mL) under argon was treated with a IM solution of di-wo-butyl aluminum hydride in dichloromethane (lOmL) and the reaction mixture was warmed to -20°C over lh. It was then quenched with saturated aqueous ammonium chloride solution and diluted with dichloromethane and filtered over a bed of celite. The phases were separated and the aqueous phase was extracted with dichloromethane (xl). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford the title compound as a viscous oil (0.74g, 87%). 'H-NMR (300 MHz, CDC13): δ 0.45-0.53(m, 4H), 1.25(s, 6H), 1.72-1.82(m, 2H), 2.61(s, 2H), 3.73(s, 2H), 4.61 (d, J = 5Hz, 2H), 6.98(d, J = 7.9Hz, IH), 7.07 (dd, J = 1.5, 7.6Hz, IH), 7.27(s, IH). 2-Cvcloρroρy 1-4.4-dimethy 1- 1.2.3.4-tetrahvdroisoquinoline-6-carbaldehvde (Intermediate 25) A solution of 2-cyclopropyl-6-hydroxymethyl-4,4-dimethyl- 1,2,3,4- tetrahydroisoquinoline (Intermediate 24, 0.74g, 3.2mmol) in dichloromethane (lOmL) and acetonitrile (2.5mL) was treated sequentially with 4 A0 molecular sieves powder (1.06g), tetra-n-propyl ammonium perruthenate (0.050g, 0.14mmol) and N-methyl morpholine N-oxide (1. lg, 9.8mmol). After stirring at ambient temperature for 0.5h, it was diluted with 5mL of hexane and subjected to flash column chromatography over silica gel (230-400 mesh) using 10%> ethyl acetate in hexane as the eluent to afford the title compound as an oil (0.27g, 37%>) . 'H-NMR (300 MHz, CDCl3):δ 0.44-0.56(m, 4H), 1.30(s, 6H), 1.79(m, IH), 2.66(s, 2H), 3.82(s, 2H), 7.17(d, J - 7.9Hz, IH), 7.60 (dd, J = 1.6, 7.9Hz, IH), 7.82(d, J = 1.8Hz, IH), 9.95 (s, IH). 6-(2.2-Dibromo-vinyl -2-cycloproρyl-4.4-dimethyl- 1.2.3.4- tetrahydroisoquinoline (Intermediate 26) A stirred, cooled (ice-bath) solution of triphenyl phosphine (0.53g, 2mmol) in anhydrous dichloromethane was treated with carbon tetrabromide (0.35g, lmmol) under argon. After 0.5h, a solution of 2-cycloproρyl-4,4- dimethy 1-1, 2,3, 4-tetrahydroisoquinoline-6-carboxaldehyde (Intermediate 25, 0.13g, 0.57mmol) in dichloromethane (2mL) was cannulated into the reaction mixture. After 1.5h between 0°C and 10°C, the reaction mixture was subjected to flash column chromatography over silica gel (230-400 mesh) using 3-5% ethyl acetate in hexane as the eluent to afford the title compound as a viscous, pale yellow oil (0.18g, 82%). 'H-NMR (300 MHz, CDCl3):δ 0.49-0.57(m, 4H), 1.3 l(s, 6H), 1.80(m, IH), 2.67(s, 2H), 3.77(s, 2H), 7.04(d, J = 7.9Hz, IH), 7.29 (dd, J = 1.7, 7.9Hz, IH), 7.49 (s, IH), 7.50(d, J = 1.7Hz, IH). 2-Cvclopropyl-6-ethvny 1 -4.4-dimethy 1- 1.2.3 ,4-tetrahy droisoquinoline (Intermediate 27) A stirred, cooled (-78°C) solution of 6-(2,2-dibromo-vinyl)-2- cyclopropyl-4,4-dimethyl-l,2,3,4-tetrahydroisoquinoline-6-carboxaldehyde (Intermediate 26, 0.18g, 0.47mmol) in tetrahydrofuran (2mL) was treated with 1.6M solution of «-butyl lithium (0.6mL, 0.96mmol) under argon. The reaction mixture was allowed to warm to -20°C over 1.5h, quenched with saturated aqueous ammonium chloride solution and extracted with diethyl ether (x2). The combined organic phase was dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title compound as an oil (O.lg, 94%>). 'H-NMR (300 MHz, CDCl3):δ 0.47-0.55(m, 4H), 1.28(s, 6H), 1.77(m, IH), 2.63(s, 2H), 3.05(s, IH), 3.67(s, 2H), 6.98(d, J = 7.6Hz, IH), 7.26 (dd, J = 1.5, 7.9Hz, IH), 7.46(d, J = 1.5Hz, IH). [4-(2-Cvclopropyl-4.4-dimethyl- 1.2.3.4-tetrahvdro-isoquinolin-6-yl-ethvny IV 2-fluoro-phenyll-acetic acid ethyl ester (Compound 21, General Formula 3) Following general procedure F and using 2-cyclopropyl-6-ethynyl- 4,4-dimethyl-l,2,3,4-tetrahydro-isoquinoline(Intermediate 27, 0.13g, 0.57 lmmol), 2-fluoro-4-iodo phenyl acetic acid ethyl ester (Reagent C, 0.16g, 0.52mmol), triethyl amine (0.8mL), anhydrous tetrahydrofuran (2mL), copρer(I)iodide (0.051g, 0.27mmol) and dichlorobis(triρhenylρhosphine)palladium(II) (O.lg, 0.14mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 10% ethyl acetate in hexane as the eluent, O.lg of the title compound was obtained as an oil. It was further purified by preparative normal phase HPLC on a partisil- 10 silica column using 10% ethyl acetate in hexane as the mobile phase (0.055g, 24%>). 'H-NMR (300 MHz, CDCl3):δ 0.42-0.5 l(m, 4H), 1.26(t, J= 7.3Hz, 3H), 1.27(s, 6H), 1.75(m, IH), 2.61(s, 2H), 3.66(s, 2H), 3.74(s, 2H), 4.18 (q, J= 7.3Hz, 2H), 6.97 (d, J = 7.9Hz, IH), 7.20-7.29(m, 4H), 7.45(d, J = 1.5Hz, IH). [4-(2-Cyclopropyl-4.4-dimethyl-1.2,3.4-tetrahydro-isoquinolin-6-yl-ethynyl)- 2-fluoro-phenyl] -acetic acid (Compound 22, General Formula 3) Following general procedure J and using [4-(2-cy clopropy 1-4,4- dimethyl- 1 ,2,3 ,4-tetrahy dro-isoquinolin-6-ylethynyl)-2-fluoro-phenyl]-acetic acid ethyl ester (Compound 21, 0.055g, 0.135mmol), methanol (2mL), tetrahydrofuran (4mL), water (lmL) and lithium hydroxide monohydrate (0.117g, 2.97mmol) the title compound was obtained as a pale yellow solid foam (0.040g, 78%>). 'H-NMR (300 MHz, CDC13): δ 0.52-0.65(m, 4H), 1.27(s, 6H), 1.84(m, IH), 2.71(s, 2H), 3.61(s, 2H), 3.85(s, 2H), 6.98(d, J = 7.9Hz, IH), 7.06 (t, J = 7.6Hz, IH), 7.17-7.25(m, 3H), 7.43(d, J = 1.2Hz, IH), 8.60-9.00(br s, IH). |"4-(2-Cyclopropyl-4.4-dimethyl-1.2.3.4-tetrahydro-isoquinolin-6-yl-ethvnylV phenylj-acetic acid methyl ester (Compound 23, General Formula 3) Following general procedure F and using 2-cycloproρyl-4,4-dimethyl- 6-ethynyl-l,2,3,4-tetrahydro-isoquinoline(Intermediate 27, 0.13g, 0.57 lmmol), 4-iodo phenyl acetic acid methyl ester (Reagent B, 0.16g, 0.58mmol), triethyl amine (0.5mL), anhydrous tetrahydrofuran (2mL), copper(I)iodide (0.04g, 0.21mmol) and dichlorobis(triρhenylρhosρhine)ρalladium(II) (0.12g, 0.17mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 10% ethyl acetate in hexane as the eluent, 0.05g of the title compound was obtained as an oil. It was further purified by preparative normal phase HPLC on a partisil- 10 silica column using 10%> ethyl acetate in hexane as the mobile phase (0.0 lg, 6%). 'H-NMR (300 MHz, CDC13): δ 0.42-0.58(m, 4H), 1.29(m, 6H), 1.79(m, IH), 2.64(s, 2H), 3.67(s, 3H), 3.72(s, 2H), 3.77(s, 2H), 7.09 (d, J = 7.9Hz, IH), 7.28(dd, J = 1.5, 7.9Hz, IH), 7.36 (d, J = 7.9Hz, 2H), 7.50 (d, J = 1.6Hz, lH), 7.51(d, J = 7.9Hz, 2H). r4-(2-Cy clopropy 1-4.4-dimethyl- 1.2.3 -tetrahvdro-isoquinolin-ό-yl-ethyny 1)- phenyll-acetic acid (Compound 24. General Formula 3) Following general procedure J and using [4-(2-cyclopropyl-4,4- dimethyl- 1 ,2,3,4-tetrahy dro-isoquinolin-6ylethynyl)-pheny l]-acetic acid methyl ester (Compound 23, O.Olg, 0.027mmol), methanol (lmL), tetrahydrofuran ( 1 mL), water (0.5mL) and lithium hydroxide monohy rate (0.042g, lmmol) the title compound was obtained as a pale yellow solid foam (0.0065g, 68%). 'H-NMR (300 MHz, CDC13): δ 0.35-0.52(m, 4H), 1.24(s, 6H), 1.74(m, IH), 2.59(s, 2H), 3.64(s, 2H), 3.71(s, 2H), 7.03 (d, J = 8.2Hz, IH), 7.22(dd, J = 1.4, 7.9Hz, IH), 7.33 (d, J = 8.2Hz, 2H), 7.46 (d, J = 8.2Hz, 2H), 7.47(s, IH). 1 -(Zyo-proρyl-methyl-amino)-6-trimethylsilanylethvnyl-4.4-dimethyl- 1 ,2,3 ,4^ tetrahvdro-naphthalene (Intermediate 28) Following general procedure G and using a solution of 4,4-dimethyl- 6-trimethylsilanylethynyl- 1 ,2,3,4-tetrahydro-naphthalene 2-one (Intermediate 12, 0.2g, 0.78mmol), dichloromethane (4mL), acetonitrile (2mL), acetic acid (lmL), isopropyl amine (lmL, 11.74mmol) and sodium cyanoborohydride (0.19g, 3.02mmol), after 15day s of reaction time and work up afforded an intermediate (0.14g, 60%, 0.47mmol) which was used following general procedure H along with acetone (2mL), potassium carbonate (0.6g, 4.34mmol) and methyl iodide (0.5mL, δmmol). The crude product after work up was subjected to flash column chromatography over silica gel (230-400 mesh) using 15% ethyl acetate in hexane as the eluent to afford the title compound as a pale yellow oil (0.14g, 95%). Η-NMR (300 MHz, CDC13): δ 0.001 (s, 9H), 0.85 (d, J= 6.4Hz, 6H), 0.98 (s, 3H), 1.03 (s, 3H), 1.32-1.60 (m, 4H), 1.81(s, 3H), 2.64(heptet, J= 6.4Hz, IH), 3.65 (dd, J = 6.1, 9.4Hz, IH), 6.97 (dd, J = 1.7, 7.9Hz, IH), 7.13 (d, J - 1.7Hz, IH), 7.82 (d, J = 7.9Hz, IH). 6-Ethvnyl- 1 -(^o-ρropyl-methyl-amino -4.4-dimethyl- 1.2.3.4-tetrahvdro- naphthalene (Intermediate 29) Following general procedure E and using 1 -(methy l-iso- propy lamino)-4,4-dimethy 1-6-trimethy lsilany lethyny 1- 1 ,2,3 ,4-tetrahy dro- naphthalene (Intermediate 28, 0.14g, 0.45mmol), methanol (5mL), potassium carbonate (0.6 lg, 4.4 lmmol) and ethyl acetate the title compound (0.092g, 80%>) was obtained as an oil. Η-NMR (300 MHz, CDCl3):δ 1.1 l(d, J= 6.4Hz, 6H), 1.23(s, 3H), 1.28(s, 3H), 1.51-1.87 (m, 4H), 2.09(s, 3H), 2.90 (heptet, J = 6.4Hz, IH), 3.00(s, IH), 3.91 (dd, J= 5.8, lO.OHz, IH), 7.25(dd, J = 1.7, 8.2Hz, 1H), 7.41 (d, J = 1.7Hz, IH), 7.70(d, J = 8.2Hz, IH). 4-[5- θ-propyl-methyl-aminoV8.8-dimethyl-5.6.7.8-tetrahydro- naphthalene-2-yl-ethvnvni-benzoic acid ethyl ester (Compound 25, General Formula 4) Following general procedure F and 6-ethynyl- 1 -(wo-propy 1-methyl- amino)-4,4-dimethy 1- 1 ,2,3 ,4-tetrahy dro-naphthalene (Intermediate 29, 0.092g, 0.36mmol), ethyl-4-iodo benzoate (Reagent A, 0.12g, 0.48mmol), triethyl amine (lmL), tetrahydrofuran (2mL), copper(I)iodide (0.028g, 0.14mmol) and dichlorobis(triphenylphosρhine)palladium(II) (0.075g, 0.1 lmmol) followed by flash column chromatography over silica gel (230- 400 mesh) using 10-15% ethyl acetate in hexane as the eluent the title compound was obtained (0.04g, 27%). 'H-NMR (300 MHz, CDC13): δ 1.12 (d, J= 6.5Hz, 6H), 1.27 (s, 3H), 1.31 (s, 3H), 1.40 (t, J = 7.0Hz, 3H), 1.62-1.89 (m, 4H), 2.10(s, 3H), 2.92 (heptet, J = 6.4Hz, IH), 3.94(dd, J= 6.1, 9.7Hz, IH), 4.38(q, J- 7.1Hz, 2H), 7.31(dd, J = 1.4, 8.2Hz, IH), 7.46 (d, J = 1.7Hz, IH), 7.58 (d, J = 8.2Hz, 2H), 7.75(d, J = 8.2Hz, IH), 8.0 l(d, J = 8.2Hz, 2H). 4-r5-(/sO-propyl-methyl-amino -8.8-dimethyl-5.6.7.8-tetrahvdro- naphthalene-2-yl-ethvnyl 1-benzoic acid (Compound 26, General Formula 4) Following general procedure I and using 4-[5-(ώo-propyl-methyl- amino)-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalene-2-ylethynyl)]-benzoic acid ethyl ester (Compound 25, 0.04g, 0.0 lmmol), ethanol (2mL), tetrahydrofuran (lmL) and IM aqueous sodium hydroxide solution (lmL) followed by recrystallization from diethylether-hexane, the title compound was obtained as an off-white solid (0.0 lOg, 27%>). Η-NMR (300 MHz, CDC13): δ 1.30(d, J= 6.0Hz, 6H), 1.3 l(s, 9H), 1.67- 1.98(m, 4H), 2.35 (s, 3H), 3.19 (heptet, J= 6.4Hz, IH), 4.36 (t, J = 7.6Hz, IH), 7.28(dd, J= 1.4, 8.2Hz, IH), 7.48 (d, J = 1.4Hz, IH), 7.55 (d, J = 8.2Hz, 2H), 7.81 (d, J= 8.2Hz, IH), 8.05 (d, J = 8.2Hz, 2H). [4-r2.2.4.4-Tetramethyl-chroman-6-v1-ethvnyl) phenvl] acetic acid methyl ester (Compound 27, General Formula 8) Following general procedure F and using 6-ethynyl-2,2,4,4- tetramethylchroman (synthesis described in U.S. Patent Nos. 5,045,551 and 5,616,597 incorporated herein by reference) (0.060g, 0.28mmol), methyl-4- iodo phenyl acetate (Reagent B, 0.078g, 0.28mmol), triethyl amine (4mL), tetrahydrofuran (4mL), coρper(I)iodide (0.03 Og, 0.16mmol) and dichlorobis(triρheny lphosphine)palladium(II) (0.11 g, 0.16mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 5-10 % ethyl acetate in hexane as the eluent the title compound was obtained (0.047g, 46%). 'H NMR (300 MHz, CDC13): δ 7.48-7.45 (m, 3H), 7.25-7.23 (m, 3H), 6.75 (d, IH, J= 8.2Hz), 3.70 (s, 3H), 3.62 (s, 2H), 1.84 (s, 2H), 1.36 (s, 6H), 1.35 (s, 6H). GENERAL PROCEDURE L : r4-(2,2.4,4-Tetramethyl-chroman-6-yl- ethvnyl phenyl] acetic acid (Compound 28, General Formula 8) A solution of [4-(2,2,4,4-tetramethyl-chroman-6-yl-ethynyl) phenyl] acetic acid methyl ester (Compound 27, 0.047g, 0.13mmol) in 5mL of methanol was treated with IM sodium hydroxide solution (2mL) and heated at 55°C for 2h. The volatiles were distilled off in vacuo and the residue was acidified with 10% hydrochloric acid and extracted with ethyl acetate (x2). The combined organic phase was washed with brine (xl), dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to a residue which was purified by preparative reverse phase HPLC using 10% water in acetonitrile as the mobile phase to afford the title compound (0.034g, 82%o). 'H NMR (300 MHz, CDC13): δ 7.49-7.45 (m, 3H), 7.26-7.22 (m, 3H), 6.75 (d, 1H, J= 8.2Hz), 3.65 (s, 2H), 1.84 (s, 2H), 1.36 (s, 6H), 1.35 (s, 6H). 2-Fluoro-4-(2.2.4.4-tetramethyl-chroman-6-yl-ethvnyl)-benzoic acid methyl ester (Compound 29, General Formula 8) Following general procedure F and using 6-ethynyl-2,2,4,4- tetramethy lchroman (0.11 g, 0.51 mmol), methy l-2-fluoro-4-iodo-benzoate (Reagent G, 0.14g, 0.5 lmmol), triethyl amine (5mL), tetrahydrofuran(lOmL), coρper(I)iodide(0.030g, 0.16mmol) and dichlorobis(triρheny lρhosphine)palladium(II) (0.11 Og, 0.16mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 5-10 % ethyl acetate in hexane as the eluent, the title compound was obtained (0.14g, 79%). Η NMR (300 MHz, CDC13): δ 7.82 (t, IH, J= 7.9Hz), 7.39 (d, IH, J= 1.8Hz), 7.25-7.16 (m, 3H), 6.69 (d, IH, J= 8.2Hz), 3.85 (s, 3H), 1.77 (s, 2H), 1.29 (s, 6H), 1.28 (s, 6H). 2-Fluoro-4-(2.2.4.4-tetramethyl-chroman-6-yl-ethynyl)-benzoic acid (Compound 30, General Formula 8) Following general procedure L and using 2-fluoro-4-(2,2,4,4- tetramethyl-chroman-6-yl-ethynyl)-benzoic acid methyl ester (Compound 29, 0.14g, 0.4mmol), 5mL of methanol and IM sodium hydroxide solution (2mL) followed by recrystallization from ethyl acetate, the title compound was obtained (0.083g, 58%). 'H NMR (300 MHz, CD3COCD3): δ 8.00 (t, IH, J= 7.8Hz), 7.63 (d, IH, J= 2.1Hz), 7.45 (dd, IH, J= 1.5, 7.9Hz), 7.38 (dd, IH, J= 1.5, 11.4Hz), 7.32 (dd, IH, J= 2.1, 8.2Hz), 6.81 (d, IH, J= 8.5Hz), 1.92 (s, 2H), 1.41 (s, 6H), 1.38 (s, 6H). [2-Fluoro-4-(2.2.4.4-tetramethyl-chroman-6-yl-ethynyl phenyll acetic acid ethyl ester (Compound 31, General Formula 8) Following general procedure F and using 6-ethynyl-2,2,4,4- tetramethylchroman (0.204g, 0.95mmol), ethyl-2-fluoro-4-iodo phenyl acetate (Reagent C, 0.263g, 0.86mmol), triethyl amine, tetrahydrofuran, coρρer(I)iodide (0.025g, 0.13mmol) and dichlorobis(triρhenylphosphine)palladium(II) (0.075g, 0.1 lmmol) followed by flash column chromatography over silica gel (230-400 mesh) using 5-10 % ethyl acetate in hexane as the eluent, the title compound was obtained (0.21g, 62%). 'H NMR (300 MHz, CDCl3): δ 7.46 (d, 1H, J= 2.1Hz), 7.25-7.21 (m, 4H), 6.69 (d, IH, J= 8.5Hz), 4.16 (q, 2H, J= 7.1Hz), 3.65 (s, 2H), 1.82 (s, 2H), 1.35 (s, 6H), 1.35 (s, 6H), 1.24 (t, 3H, J= 7.2Hz). [2-Fluoro-4-(2.2.4,4-tetramethyl-chroman-6-yl-ethynyl) phenyl] acetic acid (Compound 32, General Formula 8) Following general procedure L and using [2-fluoro-4-(2,2,4,4- tetramethyl-chroman-6-ylethynyI) phenyl] acetic acid ethyl ester (Compound 31, 0.21 g, 0.58mmol), 5mL of methanol and IM sodium hydroxide solution (2mL) followed by flash column chromatography over silica gel (230-400 mesh) using 50% ethyl acetate in hexane, the title compound was obtained as a solid (0.184g, 93%). 'H NMR (300 MHz, CDC13): δ 11.40 (br s, IH), 7.48 (d, IH, J= 1.8Hz), 7.46-7.16 (m, 4H), 6.76 (d, IH, J= 8.2Hz), 3.69 (s, 2H), 1.82 (s, 2H), 1.34 (s, 12H). 3-Methyl-but-2-enoic acid 4-bromo-phenyl ester: To a stirred, cooled (ice bath) suspension of sodium hydride (2.4g, lOOmmol) in anhydrous tetrahydrofuran (200mL), 4-bromo phenol (17.3g, lOOmmol) was added followed by 3,3,-dimethyl acryloyl chloride (11.14mL, lOOmmol). After 4hours at ambient temperature, the reaction mixture was poured into brine and extracted with diethyl ether (x2). The combined organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using 2% ethyl acetate in hexane as the eluent to afford the title compound ( 15 g, 59%) . 'H-NMR (300 MHz, CDCl3):δ 2.00(s, 3H), 2.23(s, 3H), 5.89(s, IH), 7.00(d, J = 8.8Hz, 2H), 7.49(d, J = 8.8Hz, 2H). 6-Bromo-4.4-dimethyl-chroman-2-one: A solution of 3-methyl-but-2-enoic acid 4-bromo-phenyl ester (7g, 27.6mmol) in anhydrous dichloromethane (200mL) was cooled (ice bath) and treated with aluminum chloride (6.6g, 49.6mmol) and the reaction mixture was stirred overnight at ambient temperature. The reaction mixture was quenched with saturated aqueous sodium bicarbonate solution and extracted with diethyl ether (x2). The combined organic extract was washed woth brine (xl), dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford an oil which was purified by flash column chromatography over silica gel (230-400 mesh) using 2.5%> ethyl acetate in hexane as the eluent to afford the title compound (4.2g, 57%). 'H-NMR (300 MHz, CDCl3):δ 1.36(s, 6H), 2.62(s, 2H), 6.95(d, J = 8.5Hz, IH), 7.37(dd, J = 2.4, 8.5Hz, IH), 7.43(d, J = 2.3Hz, IH). 4-Bromo-2-(3 -hydroxy- 1.1.3 -trimethyl-butyD-phenol: A solution of 6-bromo-4,4-dimethyl-chroman-2-one (1 g, 3.92mmol) in anhydrous tetrahydrofuran (20mL) was treated with 3M solution of ethyl magnesium bromide (2.6mL) and stirred at ambient temperature for 2hours. The reaction mixture was poured into cold dilute hydrochloric acid and extracted with ethyl acetate (x2). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford a residue which was subjected to flash column chromatography over silica gel (230-400 mesh) using 10% ethyl acetate in hexane as the eluent to afford the title compound as a pale yellow solid ( 1.1 g, 100%o) . 'H-NMR (300 MHz, CDCl3):δ 1.14(s, 6H), 1.44(s, 6H), 2.20(s, 2H), 6.49(d, J= 8.4Hz,lH), 7.15(dd, J = 2.4, 8.5Hz, IH), 7.37(d, J = 2.4Hz, IH). 6-Bromo-2.2.4.4-tetramethyl-chroman: A solution of 4-bromo-2-(3-hydroxy-l,l,3-trimethyl-butyl)-phenol (l.lg, 3.92mmol) and -toluene sulfonic acid (0.744g, 3.92mmol) in benzene (20mL) was refluxed overnight. The reaction mixture cooled to ambient temperature, filtered on silica gel and washed with 10% ethyl acetate in hexane. The filtrate and washings were evaporated in vacuo to an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using 5% ethyl acetate in hexane as the eluent to afford the title compound as a pale yellow oil (0.84g, 80%>). 'H-NMR (300 MHz, CDCl3):δ 1.34(s, 6H), 1.35(s, 6H), 1.82(s, 2H), 6.68(d, J= 8.4Hz, IH), 7.16(dd, J= 2.7, 8.7Hz, IH), 7.37(d, J = 2.6Hz, IH). The synthesis of this compound, as described here, is in close analogy to the synthesis of 6-bromo-2,2,4,4-tetramethylthiochroman, as described in United States Patent No. 5,045,551 2.2.4.4-tetramethyl-6-(2-trimethylsilyl)ethynyl chroman: Following general procedure D and using 6-bromo-2,2,4,4- tetramethyl chroman (0.5g, 1.87mmol), triethyl amine (5mL), anhydrous tetrahydrofuran (15mL),coρper(I)iodide (0.107g, 0.156mmol), trimethylsilyl acetylene (1.84g, 18.7mmol) and dichlorobis(triphenylphosphine)paIladium(II) (0.39g, 0.56mmol) the title compound was obtained as a brown oil (0.61g, 100%>). 'H NMR (300 MHz, CDC13): δ 7.43 (d, IH, J= 2.1Hz), 7.23 (dd, IH, J= 7.9, 2.1Hz), 6.73 (d, IH, J= 8.2Hz), 1.83 (s, 2H), 1.36 (s, 12H), 0.28 (s, 9H). 6-Ethvnyl-2.2.4.4-tetramethyl chroman: Following general procedure E and using 2,2,4,4-tetramethyl-6-(2- trimethylsilyl)ethynyl chroman (0.61g, 1.87mmol), potassium carbonate (1.9g, 13.74mmol) and methanol the title compound was obtained (0.4g, 90%). 'H NMR (300 MHz, CDC13): δ 7.47 (d, IH, J= 2.1Hz), 7.24 (dd, IH, J= 7.9, 2.1Hz), 6.76 (d, IH, J= 8.2Hz), 3.01 (s, IH), 1.85 (s, 2H), 1.37 (s, 6H), 1.36 (s, 6H). An alternative synthesis for this compound is described in United States Patent Nos. 5,045,551 and 5,616,597 GENERAL PROCEDURE M: 6-Bromo-2.2.4.4-tetramethyl-chroman-8- carbaldehvde (Intermediate 30) A stirred, cooled (ice bath) solution of 6-bromo-2,2,4,4-tetramethyl chroman, (0.5g, 1.865mmol) in anhydrous dichloromethane (5mL) was treated with a IM solution (1.86mL, 1.86mmol) of titanium tetrachloride in dichloromethane followed by α,α-dichloro methyl ether (0.214g, 1.865mmol). The reaction mixture was allowed to warm to ambient temperature for 4h. The reaction mixture was diluted with diethyl ether, washed with brine (xl) and dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to a residue which was subjected to flash column chromatography over silica gel (230-400 mesh) using 5% ethyl acetate in hexane to afford the title compound as a yellow solid (0.52g, 94%). Η NMR (300 MHz, CDC13): δ 10.38 (s, IH), 7.72 (d, IH, J- 2.6Hz), 7.57 (d, IH, = 2.6Hz), 1.88 (s, 2H), 1.41 (s, 6H), 1.36 (s, 6H). GENERAL PROCEDURE N: 6-Bromo-8-vinyl -2.2.4.4-tetramethyl- chroman (Intermediate 31) A solution of methy lidene triphenyl phosphorane [generated from methyl triphenylphosphonium bromide (7g, 20mmol) and (11.8mL, 19mmol) of a 1.6M solution of w-butyl lithium in hexanes ] was added 6-bromo- 2,2,4,4-tetramethyl chroman-8-carbaldehyde (Intermediate 30, 0.52g, 1.75mmol). After lh the reaction mixture was diluted with hexane, washed with brine (xl), dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to a clear oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using 2% ethyl acetate in hexane as the eluent to afford the title compound as a clear oil (0.37g, 72%). Η NMR (300 MHz, CDC13): δ 7.46 (d, IH, J= 2.5Hz), 7.33 (d, IH, J= 2.5Hz), 7.03 (dd, IH, J= 11.3, 17.9Hz), 5.75 (dd, IH, J= 1.4, 17.9Hz), 5.30 (dd, 1H, J= 1.4, 11.3Hz), 1.85 (s, 2H), 1.39 (s, 6H), 1.37 (s, 6H). GENERAL PROCEDURE O: 6-Bromo-8-cyclopropyl-2.2.4,4-tetramethyl chroman (Intermediate 32) A stirred, cooled (-30°C) solution of 6-bromo-8-vinyl-2,2,4,4- tetramethyl chroman (Intermediate 31, 0.37g, 1.26mmol) in diethyl ether was treated with a solution of diazomethane in diethyl ether and catalytic amount of palladium (IΙ)acetate (~30mg). The reaction mixture was allowed to warm to ambient temperature and subjected to flash column chromatography over silica gel (230-400 mesh) using 2%> ethyl acetate in hexane as the eluent to afford the title compound as a clear, pale yellow oil (0.376g, 97%). Η NMR (300 MHz, CDC13): δ 7.17 (d, IH, J- 2.3Hz), 6.73 (d, IH, J= 2.6Hz), 2.19-2.16 (m, IH), 1.83 (s, 2H), 1.37 (s, 6H), 1.33 (s, 6H), 0.94-0.88 (m, 2H), 0.64-0.59 (m, 2H). 8-Cycloρropyl-6-trimethylsilanylethvnyl-2.2.4.4-tetramethyl chroman (Intermediate 33) Following general procedure D and using 6-bromo-8-cycloproρyl- 2,2,4,4-tetramethyl chroman (Intermediate 32, 0.376g, 1.22mmol), (trimethylsilyl)acetylene (4mL, 28mmol), triethyl amine (3mL), anhydrous tetrahydrofuran (5mL), copρer(I)iodide (0.025g, 0.13mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.075g, 0.1 lmmol), the title compound was obtained as an oil (0.173 g, 43 %) . 'H NMR (300 MHz, CDC13): δ 7.36 (d, IH, J= 2.2Hz), 6.90 (d, IH, J= 1.9Hz), 2.31 -2.22 (m, IH), 1.96 (s, 2H), 1.49 (s, 6H), 1.46 (s, 6H), 1.05-0.88 (m, 2H), 0.78-0.72 (m, 2H), 0.37 (s, 9H). 8-Cyclopropyl-6-ethynyl-2.2.4.4-tetramethyl chroman (Intermediate 34) Following general procedure E and using 8-cyclopropyl-6- trimethylsilanylethynyl-2,2,4,4-tetramethyl chroman (Intermediate 33, 0.17g, 0.68mmol), methanol and potassium carbonate (0.2g, 1.47mmol) the title compound was obtained as an oil (0.064g, 47%>). Η NMR (300 MHz, CDC13): δ 7.38 (d, IH, J= 1.9Hz), 6.92 (d, IH, J= 1.9Hz), 3.08 (s, IH), 2.32-2.23 (m, IH), 1.96 (s, 2H), 1.50 (s, 6H), 1.46 (s, 6H), 1.05-0.99 (m, 2H), 0.77-0.72 (m, 2H). 4-(8-Cvcloρropyl-2.2.4.4-tetramethyl-chroman-6-yl-ethynyl)-benzoic acid ethyl ester (Compound 33, General Formula 8) Following general procedure F and using 8-cycloproρyl-6-ethynyl- 2,2,4,4-tetramethy lchroman (Intermediate 34, 0.1 g, 0.3 Smmol), ethy 1-4- iodo-benzoate (Reagent A, 0.1 g, 0.34mmol), triethyl amine (5mL), tetrahy drofuran( 1 OmL), coρper(I)iodide(0.025g, 0.13mmol) and dichlorobis(triphenylphosphine)ρalladium(II) (0.075g, 0.1 lmmol) followed by flash column cliromatography over silica gel (230-400 mesh) using 5-10 % ethyl acetate in hexane as the eluent, the title compound was obtained (0.135g, 89%). Η NMR (300 MHz, CDC13): δ 8.00 (d, 2H, J= 8.2Hz), 7.55 (d, 2H, J= 8.2Hz), 7.30 (d, IH, J- 1.8Hz), 6.84 (d, IH, J= 2.0Hz), 4.38 (q, 2H, J= 6.9Hz), 2.22-2.12 (m, IH), 1.85 (s, 2H), 1.40 (t, 3H, J= 6.9Hz), 1.38 (s, 6H), 1.36 (s, 6H), 0.92-0.88 (m, 2H), 0.67-0.62 (m, 2H). 4-(8-Cyclopropyl-2.2,4.4-tetramethyl-chroman-6-yl-ethynyl)-benzoic acid (Compound 34, General Formula 8) Following general procedure L and using 4-(8-cyclopropyl-2,2,4,4- tetramethyl-chroman-6-yl-ethynyl)-benzoic acid ethyl ester (Compound 33, 0.135g, 0.34mmol), 5mL of methanol and IM sodium hydroxide solution (2mL) followed by preparative reverse phase HPLC using 10%> water in acetonitrile as the mobile phase, the title compound was obtained as a solid (0.093g, 73%). 'H NMR (300 MHz, CDC13): δ 11.26 (br s, IH), 8.08 (d, 2H, J= 8.2Hz), 7.59 (d, 2H, J= 8.2Hz), 7.31 (d, IH, J = 1.8Hz), 6.85 (d, IH, J= 2.1Hz), 2.22-2.13 (m, IH), 1.85 (s, 2H), 1.38 (s, 6H), 1.36 (s, 6H), 0.95-0.87 (m, 2H), 0.68-0.63 (m, 2H). r4-(8-Cvcloproρyl-2.2.4.4-tetramethyl-chroman-6-yl-ethvnyl) phenyl] acetic acid methyl ester (Compound 35, General Formula 8) Following general procedure F and using 8-cy clopropy 1-6-ethynyl- 2,2,4,4-tetramethylchroman (Intermediate 34, 0.096g, 0.38mmol), methyl- 4-iodo phenyl acetate (Reagent B, 0.094g, 0.34mmol), triethyl amine (3mL), tetrahydrofuran (3mL), coρper(I)iodide (0.025g, 0.13mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.075g, 0.1 lmmol) the title compound was obtained (0.137g, 90%). 'H NMR (300 MHz, CDC13): δ 7.47 (d, 2H, J= 7.9Hz), 7.29 (d, IH, J= 1.8Hz), 7.24 (d, 2H, J= 7.9 Hz), 6.82 (d, IH, J= 2.1Hz), 3.70 (s, 3H), 3.63 (s, 2H), 2.22-2.13 (m, IH), 1.85 (s, 2H), 1.38 (s, 6H), 1.36 (s, 6H), 0.94-0.86 (m, 2H), 0.68-0.63 (m, 2H). [4-r8-Cvcloproρyl-2.2.4.4-tetramethyl-chroman-6-yl-ethynyl) phenyl] acetic acid (Compound 36, General Formula 8) Following general procedure L and using [4-(8-cycloρroρyl-2,2,4,4- tetramethyl-chroman-6-ylethynyl) phenyl] acetic acid methyl ester (Compound 35, 0.137g, 0.30mmol), 5mL of methanol and IM sodium hydroxide solution (2mL) followed by preparative reverse phase HPLC using 10%o water in acetonitrile as the mobile phase, the title compound was obtained as a solid (0.11 g, 80%). 'H NMR (300 MHz, CDC13): δ 11.56 (br s, IH), 7.47 (d, 2H, J= 8.9Hz), 7.28 (d, IH, J= 1.9Hz), 7.23 (d, 2H, J= 8.5Hz), 6.82 (d, IH, J= 1.9Hz), 3.62 (s, 2H), 2.21-2.12 (m, IH), 1.83 (s, 2H), 1.36 (s, 6H), 1.34 (s, 6H), 0.93- 0.82 (m, 2H), 0.72-0.62 (m, 2H). 4-(8-Cvcloρropyl-2.2.4.4-tetramethyl-chroman-6-yl-ethynyl)-2- fluorophenyl] acetic acid ethyl ester (Compound 37, General Formula 8) Following general procedure F and using 8-cyclopropyl-6-ethynyl- 2,2,4,4-tetramethylchroman (Intermediate 34, 0.096g, 0.38mmol), ethyl-2- fluoro-4-iodo phenyl acetate (Reagent C, 0.104g, 0.34mmol), triethyl amine (3mL), tetrahydrofuran (3mL), coρper(I)iodide (0.020g, 0. lmmol) and dichlorobis(triphenylphosphine)palladium(II) (0.060g, 0.085mmol) the title compound was obtained (0.14g, 85%>). Η NMR (300 MHz, CDC13): δ 7.31 (d, IH, J- 1.9Hz), 7.29-7.21 (m, 3H), 6.85 (d, IH, j= 1.9Hz), 4.20 (q, 2H, J= 7.1Hz), 3.68 (s, 2H), 2.24-2.14 (m, IH), 1.87 (s, 2H), 1.40 (s, 6H), 1.38 (s, 6H), 1.28 (t, 3H, J= 7.1Hz), 0.96- 0.85 (m, 2H), 0.70-0.64 (m, 2H). [4-(8-Cvcloρroρyl-2.2.4.4-tetramethyl-chroman-6-yl-ethvnyl -2- fluorophenyl] acetic acid (Compound 38, General Formula 8) Following general procedure L and using [4-(8-cyclopropyl-2,2,4,4- tetramethyl-chroman-6-yl-ethynyl)-2-fluorophenyl] acetic acid ethyl ester (Compound 37, 0.14g, 0.323mmol), 5mL of methanol and IM sodium hydroxide solution (2mL) followed by reverse phase HPLC using 10% water in acetonitrile as the mobile phase, the title compound was obtained as a solid (0.1 lOg, 80%). 'H NMR (300 MHz, CDC13): δ 7.28 (d, IH, J= 2.1Hz), 7.27-7.17 (m, 3H), 6.82 (d, IH, J= 1.8Hz), 3.70 (s, 2H), 2.21-2.11 (m, IH), 1.84 (s, 2H), 1.37 (s, 6H), 1.35 (s, 6H), 0.94-0.87 (m, 2H), 0.67-0.62 (m, 2H). GENERAL PROCEDURE P: 6-Bromo-4.4-dimethyl-2-methylene chroman (Intermediate 35) A stirred, cooled (ice bath) solution of 6-bromo-4,4-dimethyl- chroman-2-one available in accordance with U.S. Patent No. 5,399,561 incorporated herein by reference ( 1 g, 3 ,92mmol) in 8mL of anhydrous tetrahydrofuran was treated with a 0.5 M solution of μ-chloro-μ-methylene- [bis(cyclopentadienyl)titanium]dimethylaluminum (Tebbe reagent) in toluene (8.23mL, 4.12mmol). After 10 minutes, the reaction mixture was poured into ice-water mixture containing 50mL of IM sodium hydroxide and extracted with hexane. The hexane extract was washed with brine (xl), filtered over a bed of celite and evaporated in vacuo to an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using hexane as the eluent to afford the title compound (0.74g, 74%) as a clear oil. lH NMR (300 MHz, CDC13): δ 7.34 (d, IH, J= 2.3Hz), 7.23 (dd, IH, J= 2.3,8.5Hz), 6.77 (d, IH, J= 8.0Hz), 4.61 (d, IH, J= 0.73Hz), 4.17 (d, IH, J = 0.73Hz), 2.33 (s, 2H), 1.27 (s, 6H). GENERAL PROCEDURE Q: 6-Bromo-3.4-dihvdro-4.4-dimethv1spiror2H- 1 -benzoρyran-2.1 ' -cyclopropane] (Intermediate 36) A solution of diethyl zinc in hexane (IM, 7. lmL) was treated with diiodomethane ( 1.89g, 7. lmmol). After 5 minutes, a solution of 6-bromo- 4,4-dimethyl-2-methylene chroman (Intermediate 35, 0.44g, 1.77mmoI) in 3mL of hexane was added and the solution was refluxed for lh. The reaction mixture was then cooled to ambient temperature, diluted with hexane, washed with brine (xl), dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to a residue which was subjected to flash column chromatography over silica gel (230-400 mesh) using hexane as the eluent to obtain the title compound (0.44g, 93%). Η NMR (300 MHz, CDC13): δ 7.47 (d, IH, J= 2.3Hz), 7.23 (dd, IH, J= 2.3, 8.5Hz), 6.70 (d, IH, J= 8.0Hz), 1.96 (s, 2H), 1.47 (s, 6H), 1.09-1.05 (m, 2H), 0.74-0.70 (m, 2H). 3 ,4-Dihvdro-4.4-dimethyl-6-(trimethy IsilanvDethvnylspiro \2H- 1 - benzoρyran-2.1 '-cyclopropane] (Intermediate 37) Following general procedure D and using 6-bromo-3,4-dihydro-4,4- dimethylspiro[2H-l-benzopyran-2,r-cycloρropane] (Intermediate 36, 0.44g, 1.65mmol), triethyl amine (4mL), anhydrous tetrahydrofuran (5mL), copper(I)iodide (0.95g, 0.5mmol), trimethylsilyl acetylene (1.62g, 16.5mmol) and dichlorobis(tripheny lphosρhine)palladium(II) (0.4g, 0.56mmol), the title compound was obtained as a brown oil (0.4g, 86%>). 'H NMR (300 MHz, CDC13): δ 7.44 (d, IH, J= 2.1Hz), 7.18 (dd, IH, J= 2.1,8.5Hz), 6.65 (d, 1H, J= 8.5Hz), 1.87 (s, 2H), 1.37 (s, 6H), 1.01-0.97 (m, 2H), 0.65-0.61 (m, 2H), 0.26 (s, 9H). 6-Ethvnyl-3.4-dihvdro-4.4-dimethylspiro 2H-l -benzopyran-2.r- cyclopropane] (Intermediate 38) Following general procedure E and using 3,4-dihydro-4,4-dimethyl- 6-(trimethylsilanyl)ethynylspiro[2H- 1 -benzopyran-2, 1 '-cyclopropane] (Intermediate 37, 0.4g, 1.42mmol), potassium carbonate (0.98g, 7. lmmol) and methanol, the title compound was obtained as a yellow oil (0.3g, 100%). Η NMR (300 MHz, CDC13): δ 7.44 (d, IH, J= 2.1Hz), 7.18 (dd, IH, J= 2.1, 8.5Hz), 6.65 (d, IH, J= 8.5Hz), 2.97 (s, IH), 1.86 (s, 2H), 1.37 (s, 6H), 1.00-0.95 (m, 2H), 0.64-0.59 (m, 2H). Benzoic acid. 4-[(3.4-dihvdro-4.4-dimethylspiro[2H-l -benzopyran-2.1 '- cvclopropane]-6-yl)ethvnvπ-ethyl ester (Compound 39, General Formula 1) Following general procedure F and using 6-ethynyl-3,4-dihydro-4,4- dimethyIspiro[2H- 1 -benzopyran-2, 1 '-cyclopropane] (Intermediate 38, 0.06g, 0.28mmol), ethyl-4-iodo-benzoate (Reagent A, 0.086g, 0.3 lmmol), triethyl amine (4mL), tetrahydrofuran(4mL), copper(I)iodide(0.032g, 0.17mmol) and dichlorobis(triphenylρhosphine)palladium(II) (0.118g, 0.17mmol) followed by flash column chromatography over silica gel (230- 400 mesh) using 5-10 % ethyl acetate in hexane as the eluent, the title compound was obtained (0.07g, 70%>). 'H NMR (300 MHz, CDC13): δ 8.01 (d, 2H, J= 8.2Hz), 7.56 (d, 2H, J= 8.5Hz), 7.49 (d, IH, J= 2.1Hz), 7.24 (dd, IH, J= 2.1,8.5Hz), 6.70 (d, IH, J = 8.5Hz), 4.38 (q, 2H, J= 7.1Hz), 1.89 (s, 2H), 1.40 (s, 6H), 1.40 (t, 3H, J= 7.0Hz), 1.02-0.98 (m, 2H), 0.67-0.62 (m, 2H). Benzoic acid. 4-[(3.4-dihvdro-4.4-dimethv1spiror2H-1 -benzopyran-2, 1 '- cvclopropane]-6-yl)ethvnyl]- (Compound 40, General Formula 1) Following general procedure L and using benzoic acid, 4-[(3 ,4-dihydro-4,4- dimethy lspiro[2H-l -benzopyran-2, 1 '-cyclopropane]-6-yl)ethynyl]-ethyl ester (Compound 39, 0.07g, 0.196mmol), 5mL of ethanol and IM sodium hydroxide solution (2mL) followed by preparative reverse phase HPLC using 10%. water in acetonitrile as the mobile phase, the title compound was obtained as a solid (0.034g, 52%). 'H NMR (300 MHz, CD3COCD3): δ 8.05 (d, 2H, J= 8.2Hz), 7.64 (d, 2H, J= 8.2Hz), 7.60 (d, IH, J- 2.1Hz), 7.28 (dd, IH, J= 2.1, 8.5Hz), 6.73 (d, IH, J = 8.5Hz), 1.95 (s, 2H), 1.43 (s, 6H), 0.96-0.92 (m, 2H), 0.74-0.71 (m, 2H). Benzeneacetic acid, 4-[(3,4-dihydro-4,4-dimethylspiro[2H-l-benzopyran- 2, 1 '-cyclopropane]-6-yl)ethynyl]-methyl ester (Compound 41, General Formula 1) Following general procedure F and using 6-ethynyl-3 ,4-dihydro-4,4- dimethy lspiro[2H- 1 -benzopyran-2, 1 ' -cyclopropane] (Intermediate 38, , 0.060g, 0.28mmol), methyl-4-iodo phenyl acetate (Reagent B, 0.078g, 0.28mmol), triethyl amine (4mL), tetrahydrofuran (4mL), coρρer(I)iodide (0.032g, 0.17mmol) and dichlorobis(triρhenylphosρhine)palladium(II) (0.118g, 0.17mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 5 %» ethyl acetate in hexane as the eluent, the title compound was obtained (0.084g, 84%>). Η NMR (300 MHz, CDC13): δ 7.48-7.45 (m, 3H), 7.26-7.20 (m, 3H), 6.67 (d, IH, J- 8.5Hz), 3.70 (s, 3H), 3.63 (s, 2H), 1.89 (s, 2H), 1.40 (s, 3H), 1.40 (s, 3H), 1.01-0.97 (m, 2H), 0.67-0.61 (m, 2H). Benzeneacetic acid. 4-((3.4-dihvdro-4.4-dimethylsρiror2H-l-benzoρyran- 2.1 ' -c cloρroρanel-6-v Dethynyl]- (Compound 42, Formula 1) A solution of benzeneacetic acid, 4-[(3 ,4-dihy dro-4,4- dimethylsρiro[2H-l-benzopyran-2,l'-cyclopropane]-6-yl)ethynyl]-methyl ester (Compound 41, 0.084g, 0.24mmol) in 5mL of methanol was treated with IM sodium hydroxide solution (2mL) and heated at 55°C for 2h. The volatiles were distilled off in vacuo and the residue was acidified with 10%> hydrochloric acid and extracted with ethyl acetate (x2). The combined organic phase was washed with brine (xl), dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to a residue which was purified by preparative reverse phase HPLC using 10%> water in acetonitrile as the mobile phase to afford the title compound (0.080g, 100%). Η NMR (300 MHz, CD3COCD3): δ 7.49-7.46 ( , 3H), 7.25 (d, 2H, J= 8.2Hz), 7.22 (dd, 1H J= 2.1,8.5Hz), 6.68 (d, IH, J= 8.5Hz), 3.66 (s, 2H), 1.88 (s, 2H), 1.44 (s, 6H), 1.01-0.97 (m, 2H), 0.67-0.61 (m, 2H). 2-Fluoro-benzoic acid, 4-[(3,4-dihydro-4,4-dimethylspiro[2H-l-benzopyran- 2.r-cyclopropane]-6-yl)ethynyl]-methyl ester (Compound 43, General Formula 1) Following general procedure F and 6-ethynyl-3,4-dihydro-4,4- dimethy lspiro[2H- 1 -benzopyran-2, 1 '-cyclopropane] (Intermediate 38, 0.050g, 0.23mmol), methyl-2-fluoro-4-iodo-benzoate (Reagent G, 0.069g, 0.24mmol), triethyl amine (5mL), tetrahydrofuran(5mL), copper(l)iodide(0.013g, 0.07mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.049g, 0.07mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 5-10 % ethyl acetate in hexane as the eluent, the title compound was obtained (0.080g, 100%>). 'H NMR (300 MHz, CDC13): δ 7.90 (t, IH, J= 7.9Hz), 7.63 (d, IH, J= 1.8Hz), 7.32 (dd, 1H, J= 1.5, 8.2Hz), 7.26 (dd, IH, J= 1.5,11.4Hz), 7.24 (dd, IH, J= 2.1, 8.5Hz), 6.71 (d, IH, J= 8.5Hz), 1.97 (s, 2H), 1.44 (s, 6H), 0.98-0.94 (m, 2H), 0.76-0.71 (m, 2H). 2-Fluoro-benzoic acid. 4-[(3.4-dihydro-4,4-dimethylspiro[2H- 1-benzopyran- 2.1 '-cvcloproρane]-6-yl)ethvnyl]- (Compound 44, General Formula 1) Following general procedure L and using 2-fluoro-benzoic acid, 4- [(3,4-dihydro-4,4-dimethylsρiro[2H-l-benzoρyran-2,l'-cyclopropane]-6- yl)ethynyl]-methyl ester (Compound 43, O.Oδg, 0.23mmol), 5mL of methanol and 2M sodium hydroxide solution (lmL) followed by flash column chromatography over silica gel (230-400 mesh) using ethyl acetate as the eluent, the title compound was obtained (0.020g, 25%o). 'H NMR (300 MHz, CD3COCD3): δ 7.99 (t, IH, J= 7.9Hz), 7.63 (d, IH, J= 2.1Hz), 7.44 (dd, 1H, J= 1.5, 7.9Hz), 7.37 (dd, IH, J= 1.5, 11.4Hz), 7.31 (dd, IH, J= 2.1, 8.5Hz), 6.75 (d, IH, J= 8.2Hz), 1.97 (s, 2H), 1.44 (s, 6H), 0.98-0.94 (m, 2H), 0.76-0.71 (m, 2H). GENERAL PROCEDURE R: 2.2.4.4-Tetramethyl-chroman-6-carboxylic acid (Intermediate 39) A stirred, cooled (-78°C) solution of 6-bromo-2,2,4,4-tetramethyl chroman (1.2g, 4.47mmol) in 15mL of anhydrous tetrahydrofuran was treated with a 1.7M solution of tert-buty 1 lithium solution in pentane ( 5.27mL, 8.9mmol). After 10 minutes at -78°C, carbon dioxide (generated from dry ice) was bubbled into the reaction mixture. The reaction mixture was allowed to warm to ambient temperature. The reaction mixture was diluted with ethyl acetate, washed with brine, dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to a residue which was subjected to flash column chromatography over silica gel (230-400 mesh) using ethyl acetate as the eluent to afford the title compound as a white solid (l.lg, 92%). <H NMR (300 MHz, CDC13): δ 12.17 (br s, IH), 8.09 (d, IH, = 2.1Hz), 7.85 (dd, IH, J= 2.1, 8.5Hz), 6.83 (d, IH, J= 8.2Hz), 1.87 (s, 2H), 1.39 (s, 6H), 1.37 (s, 6H). 2.2.4.4-Tetramethyl-chroman-6-carboxylic acid 4-(tert- butoxycarbonylmethvDphenyl ester (Compound 45, General Formula 8) A solution of 2,2,4,4-tetramethyl chroman-6-carboxy lie acid (O.lg, 0.43mmol) in thionyl chloride (lOmL) was refluxed for 2h. The thionyl chloride was evaporated under reduced pressure and the residue was dissolved in 5mL of dichloromethane and treated with triethyl amine (5mL) followed by tert-butyl-4-hydroxy phenyl acetate (Reagent E, 0.088g, 0.427mmol). After 0.5h, the reaction mixture was subjected to flash column chromatography over silica gel (230-400 mesh) using 5-10% ethyl acetate in hexane as the eluent to afford the title compound (0.1 g, 55 %) . 'H NMR (300 MHz, CDC13): δ 8.15 (d, IH, J= 2.1Hz), 7.93 (dd, IH, J= 2.1, 8.5Hz), 7.33 (d, 2H, J= 8.8Hz), 7.16 (d, 2H, J= 8.8Hz), 6.88 (d, IH, J= 8.5Hz), 3.54 (s, 2H), 1.89 (s, 2H), 1.45 (s, 9H), 1.41 (s, 6H), 1.40 (s, 6H). 2.2.4.4-Tetramethyl-chroman-6-carboxylic acid 4-(carboxymethyl)phenyl ester (Compound 46, General Formula 8) A solution of 2,2,4,4-tetramethy l-chroman-6-carboxy lie acid 4-(tert- butoxycarbonylmethyl)ρhenyl ester (Compound 45, O.lg, 0.23mmol) was treated with 5mL of trifluoroacetic acid and stirred at ambient temperature for lh. The trifluoroacetic acid was distilled off under reduced pressure and the residue was subjected to preparative reverse phase HPLC using 10% water in acetonitrile as the mobile phase to afford the title compound as a white solid (0.045g, 50%). 'H NMR (300 MHz, CDC13): δ 8.13 (d, IH, J= 2.1Hz), 7.92 (dd, IH, J= 2.3, 8.5Hz), 7.35 (d, 2H, J= 8.8Hz), 7.17 (d, 2H, J= 8.5Hz), 6.87 (d, IH, J= 8.5Hz), 3.68 (s, 2H), 1.89 (s, 2H), 1.41 (s, 6H), 1.39 (s, 6H). 6-Bromo-8-carbaldehvde-3.4-dihvdro-4.4-dimethylspiro[2H-l-benzoPyran- 2.1' -cyclopropane] (Intermediate 40) Following general procedure M and using 6-bromo-3,4-dihydro-4,4- dimethylspiro[2H- 1 -benzopyran-2, 1 '-cycloproρane](Intermediate 36, 2.3g, 8.65mmoI), anhydrous dichloromethane (25mL), IM solution (8.65mL, 8.65mmol) of titanium tetrachloride in dichloromethane and α, -dichloro methyl ether (1.09g, 9.52mmol) followed by flash column chromatography using 10% ethyl acetate in hexane as the eluent, the title compound was obtained as a yellow solid (2.06g, 81%). 'H NMR (300 MHz, CDC13): δ 10.20 (s, IH), 7.69 (d, IH, J= 2.6Hz), 7.58 (d, IH, J= 2.6Hz), 1.92 (s, 2H), 1.40 (s, 6H), 1.09-1.04 (m, 2H), 0.73-0.69 (m, 2H). 6-Bromo-3.4-dihvdro-4.4-dimethyl-8-vinylspiro[2H-l-benzopyran-2. - cyclopropane] (Intermediate 41) Following general procedure N and using A solution of methy lidene triphenyl phosphorane [generated from methyl triphenylphosphonium bromide (7g, 20mmol) and 1.6M solution of rc-butyl lithium in hexanes (11.8mL, 19mmol) ], 6-bromo-8-carbony 1-3 ,4-dihydro-4,4- dimethylsρiro[2H- 1 -benzopyran-2, 1 '-cyclopropane](Intermediate 40, 2.06g, 7mmol) followed by flash column chromatography over silica gel (230-400 mesh) using l-2%> ethyl acetate in hexane as the eluent, the title compound was obtained as a clear oil (1.36g, 66%). 'H NMR (300 MHz, CDC13): δ 7.36 (d, IH, J= 2.3Hz), 7.28 (d, IH, J= 2.6Hz), 6.80 (dd, IH, J= 11.1, 17.9Hz), 5.63 (dd, IH, J= 1.2, 17.9Hz), 5.19 (dd, IH, J= 1.2, l l.lHz), 1.84 (s, 2H), 1.35 (s, 6H), 0.97 (t, 2H, J= 6.3Hz), 0.62 (d, IH, J= 5.3Hz), 0.60 (d, IH, J= 6.2Hz). 6-Bromo-8-cvclopropyl-3.4-dihydro-4,4-dimethv1spiro[2H-l-benzopyran- 2.1 ' -cyclopropane! (Intermediate 42) Following general procedure O and using A 6-bromo-3 ,4-dihy dro- 4,4-dimethy l-8-vinylspiro[2H- 1 -benzopyran-2, 1 ' -cyclopropane] (Intermediate 41, 1.36g, 4.6mmol), a solution of diazomethane in diethyl ether and palladium (IΙ)acetate (~30mg) followed by flash column chromatography over silica gel (230-400 mesh) using hexane as the eluent, the title compound was obtained as a clear oil (1.38g, 100%>). 'H NMR (300 MHz, CDC13): δ 7.19 (d, IH, J= 2.2Hz), 6.71 (d, IH, J= 2.2Hz), 1.99-1.92 (m, IH), 1.87 (s, 2H), 1.35 (s, 6H), 1.00-0.95 (m, 2H), 0.90-0.82 (m, 2H), 0.65-0.54 (m, 4H). 8-Cycϊopropyl-3.4-dihydro-4.4-dimethyl-6- (trimethy lsilanyl)ethynylspiro[2H- 1 -benzopyran-2.1 ' -cyclopropane] (Intermediate 43) Following general procedure D and 6-bromo-8-cy clopropy 1-3 ,4- dihy dro-4,4-dimethy lspiro[2H- 1 -benzopyran-2, 1 ' -cyclopropane] (Intermediate 42, 0.74g, 2.4mmol), (trimethylsilyl)acetylene (4mL, 28mmol), triethyl amine (8mL), anhydrous tetrahydrofuran , copper(I)iodide (0.050g, 0.26mmol) and dichlorobis(triphenylρhosρhine)ρalladium(II) (0.15g, 0.22mmol), followed by flash column chromatography over silica gel (230-400 mesh) using 1-2% ethyl acetate in hexane as the eluent, the title compound was obtained as an oil (0.62g, 80%>). 'H NMR (300 MHz, CDC13): δ 7.28 (d, IH, J= 1.9Hz), 6.77 (d, IH, J= 1.9Hz), 2.03-1.94 (m, IH), 1.91 (s, 2H), 1.40 (s, 6H), 1.05-0.98 (m, 2H), 0.95-0.83 (m, 2H), 0.69-0.59 (m, 4H), 0.27 (s, 9H). 8-Cvc1opropyl-6-ethvnyl-3.4-dihvdro-414-dimethylspiro[2H-1 -benzopyran- 2.1 '-cyclopropane] (Intermediate 44) Following general procedure E, and 8-cy clopropy 1-3 ,4-dihy dro-4,4- dimethy l-6-(trimethy lsilany l)ethyny lspiro[2H- 1 -benzopyran-2, 1 ' - cyclopropane] (Intermediate 43, 0.62g, 1.9mmol), methanol and potassium carbonate (0.5g, 3.6mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 1-2% ethyl acetate in hexane as the eluent, the title compound was obtained as an oil (0.5g, 100%). Η NMR (300 MHz, CDC13): δ 7.30 (d, IH, J= 1.8Hz), 6.80 (d, IH, J= 2.0Hz), 2.97 (s, IH), 2.04-1.95 (m, IH), 1.91 (s, 2H), 1.39 (s, 6H), 1.20-0.90 (m, 2H), 0.90-0.84 (m, 2H), 0.75-0.58 (m, 4H). Benzeneacetic acid. 4-[(8-cyclopropyl-3.4-dihydro-4.4-dimethylspiro[2H-l- benzopyran-2.1 '-cyclopropane]-6-yl)ethynyl]-methyl ester (Compound 47, General Formula 1) Following general procedure F and using 8-cy clopropy 1-6-ethyny 1- 3,4-dihydro-4,4-dimethylspiro[2H-l-benzopyran-2,r-cyclopropane] (Intermediate 44, 0.11 g, 0.43mmol), methyl-4-iodo phenyl acetate (Reagent B, 0.114g, 0.41 mmol), triethyl amine (5mL), tetrahydrofuran (3mL), copper(I)iodide (0.025g, 0.13mmol) and dichlorobis(triphenylρhosphine)ρalladium(II) (0.075g, 0.1 lmmol), the title compound was obtained as a clear oil (0.096g, 56%>). 'H NMR (300 MHz, CDC13): δ 7.46 (d, 2H, J- 8.0Hz), 7.31 (d, IH, J= 1.9Hz), 7.24 (d, 2H, J= 8.2Hz), 6.81 (d, IH, J= 1.9Hz), 3.69 (s, 3H), 3.62 (s, 2H), 2.04-1.95 (m, IH), 1.90 (s, 2H), 1.39 (s, 6H), 1.03-0.99 (m, 2H), 0.90-0.83 (m, 2H), 0.68-0.59 (m, 4H). Benzeneacetic acid. 4- (8-cvc1opropyl-3.4-dihvdro-4.4-dimethy1spiro[2H-l- benzopyran-2. r-cvclopropane]-6-yl)ethvnyl1- (Compound 48, General Formula 1) Following general procedure L and using benzeneacetic acid, 4-[(8- cyclopropyl-3,4-dihydro-4,4-dimethylspiro[2H- 1 -benzopyran-2, 1 '- cyclopropane]-6-yl)ethynyl]-methyl ester (Compound 47, 0.96g, 0.24mmol), 5mL of methanol and IM sodium hydroxide solution (2mL) followed by flash column chromatography over silica gel (230-400 mesh) using 15% methanol in dichloromethane as the eluent, the title compound was obtained as a solid (0.084g, 91%). Η NMR (300 MHz, CDC13): δ 10.27 (br s, IH), 7.46 (d, 2H, J= 8.2Hz), 7.30 (d, IH, J= 1.8Hz), 7.23 (d, 2H, J= 8.2Hz), 6.80 (d, IH, J = 1.5Hz), 3.63 (s, 2H), 2.07-1.94 (m, IH), 1.89 (s, 2H), 1.39 (s, 6H), 1.03-0.98 (m, 2H), 0.89-0.82 (m, 2H), 0.73-0.59 ( , 4H). 4-[(8-Cyclopropyl-3.4-dihydro-4,4-dimethylspiro[2H-l-benzopyran-2, - cyclopropane]-6-yl)ethynyl]-2-fluoro-benzeneacetic acid methyl ester (Compound 49, General Formula 1) Following general procedure F and using 8-cyclopropyl-6-ethynyl- 3 ,4-dihy dro-4,4-dimethy lspiro[2H- 1 -benzopyran-2, 1 ' -cyclopropane] (Intermediate 44, 0.125g, 0.5mmol), methyl-2-fluoro-4-iodo phenyl acetate (Reagent H, 0.14g, 0.5mmol), triethyl amine (3mL), tetrahydrofuran (3mL), copper(I)iodide (0.020g, 0. lmmol) and dichlorobis(triρhenylρhosphine)ρalladium(II) (0.060g, 0.085mmol) followed by preparative normal phase HPLC using 10%> ethyl acetate in hexane as the mobile phase, the title compound was obtained (0.096g, 46%>). Η NMR (300 MHz, CDC13): δ 7.30 (d, IH, J= 2.1Hz), 7.26-7.18 (m, 3H), 6.80 (d, IH, J= 1.8Hz), 3.71 (s, 3H), 3.67 (s, 2H), 2.04-1.94 (m, IH), 1.90 (s, 2H), 1.40 (s, 6H), 1.18-0.99 (m, 2H), 0.90-0.83 (m, 2H), 0.68-0.59 (m, 4H). 4-[ 8-Cycloρroρyl-3.4-dihvdro-4.4-dimethylsρiro^2/:f-^ -benzopyran-2.1,- cvcloρroρane]-6-yl)ethvnyl]-2-fluoro-benzeneacetic acid (Compound 50, General Formula 1) Following general procedure L and using 4-[(8-cy clopropy 1-3 ,4- dihydro-4,4-dimethylspiro[2H- 1 -benzopyran-2, 1 '-cycloproρane]-6- yl)ethynyl]-2-fluoro-benzeneacetic acid methyl ester (Compound 49, 0.096g, 0.23mmol), 5mL of methanol and IM sodium hydroxide solution (2mL) followed by flash column chromatography over silica gel (230-400 mesh) using 15% methanol in dichloromethane as the eluent, the title compound was obtained as a solid (0.093g, 100%>). Η NMR (300 MHz, CDC13): δ 9.50 (br s, IH), 7.27 (d, IH, J= 2.1Hz), 7.24- 7.15 (m, 3H), 6.77 (d, IH, J= 1.5Hz), 3.67 (s, 2H), 2.01-1.91 (m, IH), 1.87 (s, 2H), 1.36 (s, 6H), 1.01-0.96 (m, 2H), 0.87-0.80 (m, 2H), 0.65-0.56 (m, 4H). Benzoic acid. 4-[(8-cvclopropyl-3.4-dihydro-4.4-dimethylspiror2H-l- benzopyran-2.1' -cyclopropane] -6-vDethvnyl] -ethyl ester (Compound 51, General Formula 1) Following general procedure F and using 8-cycloproρyl-6-ethynyl- 3 ,4-dihydro-4,4-dimethylspiro[2H- 1 -benzopyran-2, 1 ' -cyclopropane] (Intermediate 44, 0.05g, 0.2mmol), ethyl-4-iodo-benzoate (Reagent A, 0.055g, 0.2mmol), triethyl amine (3mL), tetrahydrofuran(3mL), copper(I)iodide(0.020g, 0. lmmol) and dichlorobis(triρhenylρhosphine)ρalladium(II) (0.060g, 0.085mmol), the title compound was obtained (0.06g, 75%). 'H NMR (300 MHz, CDC13): δ 8.00 (d, 2H, J= 8.2Hz), 7.55 (d, 2H, J= 8.2Hz), 7.33 (d, IH, J= 1.8Hz), 6.83 (d, IH, J= 2.1Hz), 4.38 (q, 2H, J= 7.1Hz), 2.04-1.95 (m, IH), 1.91 (s, 2H), 1.40 (s, 6H), 1.40 (t, 3H, J= 7.0Hz), 1.05-0.95 (m, 2H), 0.91-0.84 (m, 2H), 0.69-0.61 (m, 4H). Benzoic acid. 4-[(8-cvclopropyl-3,4-dihydro-4.4-dimethylspiror2H-l- benzoρyran-2.1 '-cvcloρroρanel-6-yl)ethynyl]- (Compound 52, General Formula 1) Following general procedure L and using benzoic acid, 4-[(8- cyclopropyl-3,4-dihydro-4,4-dimethylspiro[2H-l-benzopyran-2,l'- cyclopropane]-6-yl)ethynyl]-ethyl ester (Compound 51, 0.06g, 0.15mmol), 5mL of methanol and IM sodium hydroxide solution (2mL) followed by preparative reverse phase HPLC using 10% water in acetonitrile as the mobile phase, the title compound was obtained as a solid (0.040g, 72%). 'H NMR (300 MHz, CDC13): δ 8.08 (d, 2H, J= 8.8Hz), 7.60 (d, 2H, J= 8.8Hz), 7.34 (d, IH, J= 1.9Hz), 6.84 (d, IH, J= 1.9Hz), 2.05-1.96 (m, IH), 1.92 (s, 2H), 1.41 (s, 6H), 1.05-0.95 (m, 2H), 0.92-0.83 (m, 2H), 0.75-0.60 (m, 4H). 4-[(8-Cvclopropyl-3 ■4-dihvdro-4,4-dimethylspiro[2H- 1 -benzoρyran-2.1 ' - cvclopropane1-6-yl)ethvnyl]-2-fluoro-benzoic acid methyl ester (Compound 53, General Formula 1) Following general procedure F and using 8-cyclopropyl-6-ethynyl- 3,4-dihydro-4,4-dimethylspiro[2H- 1 -benzopyran-2, 1 '-cyclopropane] (Intermediate 44, 0.03g, 0.1 lmmol), methyl-2-fluoro-4-iodo-benzoate (Reagent G, 0.025g, 0.09mmol), triethyl amine (3mL), tetrahydrofuran(3mL), copρer(I)iodide(0.020g, 0. lmmol) and dichlorobis(triphenylphosphine)palladium(II) (0.06g, 0.085mmol) followed by preparative normal phase HPLC using 10%> ethyl acetate in hexane as the mobile phase, the title compound was obtained as a white solid (0.019g, 40%). Η NMR (300 MHz, CDC13): δ 7.97 (t, IH, J= 7.8Hz), 7.34 (d, IH, J= 1.9Hz), 7.32-7.25 (m, 2H), 6.83 (d, IH, = 1.9Hz), 3.95 (s, 3H), 2.06-1.96 (m, IH), 1.93 (s, 2H), 1.42 (s, 6H), 1.06-1.02 (m, 2H), 0.91-0.86 (m, 2H), 0.71-0.61 (m, 4H). 4-[(8-Cyclopropyl-3.4-dihydro-4.4-dimethylsρiro 2H-l-benzopyran-2.1'- cyclopropane]-6-yl)ethynyl]-2-fluoro-benzoic acid (Compound 54, General Formula 1) Following general procedure L and using 4-[(8-cyclopropyl-3,4- dihydro-4,4-dimethylspiro[2H- 1 -benzopyran-2, 1 '-cyclopropane]-6- yl)ethynyl]-2-fluoro-benzoic acid methyl ester (Compound 53, 0.019g, 0.047mmol), 5mL of methanol and IM sodium hydroxide solution (2mL) followed by preparative reverse phase HPLC using 10% water in acetonitrile as the mobile phase, the title compound was obtained as a solid (O.Olg, 56%). Η NMR (300 MHz, CDC13): δ 7.99 (t, IH, J= 8.0Hz), 7.36 -7.28 (m, 3H), 6.83 (d, IH, J= 1.9Hz), 2.18-1.95 (m, IH), 1.92 (s, 2H), 1.41 (s, 6H), 1.06- 1.01 (m, 2H), 0.96-0.83 (m, 2H), 0.76-0.60 (m, 4H). 8-Acetyl-6-bromo-2.2.4.4-tetramethyl chroman (Intermediate 45) A stirred, cooled (ice bath) suspension of aluminum chloride (0.99g, 7.46mmol) in anhydrous dichloromethane (20 mL) was treated with acetyl chloride (0.58g, 7.46mmol). After 5 minutes, a solution of 6-bromo-2,2,4,4- tetramethyl chroman (lg, 3.73mmol)in dichloromethane was added. The reaction was allowed to warm to ambient temperature and stirred for 2h. The reaction mixture was then poured into ice containing 10% hydrochloric acid and extracted with diethyl ether (x2). The combined organic phase was washed with saturated aqueous sodium bicarbonate solution, dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to a residue which was subjected to flash column chromatography over silica gel (230- 400 mesh) using 5% ethyl acetate in hexane as the eluent to afford the title compound as a pale yellow oil (0.95g, 83%). It was used as such for the next step without any characterization. 6-Bromo-8-ethyl-2.2.4.4-tetramethyl chroman (Intermediate 46) A stirred, cooled (ice bath) solution of 8-acetyl-6-bromo-2,2,4,4- tetramethyl chroman (Intermediate 45, 0.95g, 3. lmmol) in trifluoroacetic acid ( 1 OmL) was treated with triethy lsilane ( 1 OmL) and the resulting reaction mixture was allowed to warm to ambient temperature and stirred overnight. The volatiles were distilled off in vacuo and the residue was diluted with water and extracted with hexane (x2). The combined organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to an oil which was subjected to flash column chromatography over silica gel (230-400 mesh) using hexane as the eluent to afford the title compound as a clear oil, contaminated with a small amount to triethy lsilane (0.5 lg, 56%o). Η NMR (300 MHz, CDC13): δ 7.23 (d, IH, J= 2.3Hz), 7.08 (d, IH, /= 2.3Hz), 2.58 (q, 2H, J= 7.6Hz), 1.81 (s, 2H), 1.34 (s, 6H), 1.33 (s, 6H), 1.17 (t, 3H, J= 7.6Hz). 8-Ethyl-6-trimethylsilanylethvnyl-2.2.4.4-tetramethyl chroman (Intermediate 47) Following general procedure D and using 6-bromo-8-ethy 1-2,2,4,4- tetramethyl chroman (Intermediate 46, 0.5g, 1.6 lmmol), (trimethylsilyl)acetylene (1.57g, 16. lmmol), triethyl amine (8mL), anhydrous tetrahydrofuran (lOmL), copper(I)iodide (0.025g, 0.13mmol) and dichlorobis(triρhenylρhosphine)ρalladium(II) (0.075g, 0.1 lmmol), followed by flash column chromatography over silica gel (230-400 mesh) using 5%o ethyl acetate in hexane as the eluent, the title compound was obtained as an oil (0.137g, 27%). Η NMR (300 MHz, CDC13): δ 7.27 (d, IH, J= 2.1Hz), 7.10 (d, IH, J= 2.1Hz), 2.55 (q, 2H, J= 7.6Hz), 1.81 (s, 2H), 1.33 (s, 6H), 1.32 (s, 6H), 1.15 (t, 3H, J= 1.6Hz), 0.24 (s, 9H). 8-Ethyl-6-ethynyl-2,2.4.4-tetramethyl chroman (Intermediate 48) Following general procedure E and using 8-ethyl-6- trimethylsilanylethynyl-2,2,4,4-tetramethyl chroman (Intermediate 47, 0.137g, 0.44mmol), methanol and potassium carbonate (O.lg, 0.72mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 5% ethyl acetate in hexane as the eluent, the title compound was obtained as an oil (0.066g, 62%>). Η NMR (300 MHz, CDC13): δ 7.33 (d, IH, J= 2.2Hz), 7.15 (d, IH, J= 1.6Hz), 2.99 (s, IH), 2.59 (q, 2H, J= 1.6Hz), 1.84 (s, 2H), 1.37 (s, 6H), 1.35 (s, 6H), 1.19 (t, 3H, J= 7.6Hz). r4-(8-Ethyl-2.2.4.4-tetramethyl-chroman-6-yl-ethynyl) phenyll acetic acid methyl ester (Compound 55, General Formula 8) Following general procedure F and using 8-ethyl-6-ethynyl-2,2,4,4- tetramethylchroman (Intermediate 48, 0.033g, 0.136mmol), methyl-4-iodo phenyl acetate (Reagent B, 0.034g, 0.12mmoi), triethyl amine (2mL), tetrahydrofuran (2mL), copρer(I)iodide (0.025g, 0.13mmol) and dichlorobis(triρhenylphosphine)ρalladium(II) (0.075g, 0.1 lmmol) the title compound was obtained (0.035g, 73%). Η NMR (300 MHz, CDC13): δ 7.49 (d, 2H, J= 7.9Hz), 7.35 (d, IH, J= 1.8Hz), 7.26 (d, 2H, J= 7.9Hz), 7.18 (d, IH, J= 1.9Hz), 3.72 (s, 3H), 3.65 (s, 2H), 2.61 (q, 2H, J= 7.5Hz), 1.85 (s, 2H), 1.38 (s, 12H), 1.21 (t, 3H, J= 7.5Hz). [4-(8-Ethyl-2.2.4.4-tetramethyl-chroman-6-yl-ethynyl) phenyl] acetic acid (Compound 56, General Formula 8) Following general procedure L and using [4-(8-ethyl-2,2,4,4- tetramethyl-chroman-6-ylethynyl) phenyl] acetic acid methyl ester (Compound 55, 0.035g, O.lmmol), 5mL of methanol and IM sodium hydroxide solution (lmL) followed by preparative reverse phase HPLC using 10%) water in acetonitrile as the mobile phase, the title compound was obtained as a solid (0.11 g, 25%). ]H NMR (300 MHz, CDC13): δ 7.48 (d, 2H, J= 8.0Hz), 7.33 (d, IH, J= 1.9Hz), 7.25 (d, 2H, J= 8.0Hz), 7.15 (d, IH, J= 1.9Hz), 3.65 (s, 2H), 2.59 (q, 2H, J= 7.5Hz), 1.83 (s, 2H), 1.35 (s, 12H), 1.18 (t, 3H, J= 7.4Hz). Spiro[2H-l -benzopyran-2. -cyclopropane]-6-carboxy lie acid. 8- cy clopropy 1-3, 4-dihydro-4.4-dimethyl- (Intermediate 49) Following general procedure R and using 6-bromo- 8-cy clopropy 1-3,4- dihydro-4,4-dimethylspiro[2H-l -benzopyran-2, 1 '-cyclopropane] (Intermediate 42, 0.45g, 1.48mmol), anhydrous tetrahydrofuran (5mL), 1.7M solution of tert-butyl lithium solution in pentane ( 1.74mL, 2.96mmol) and carbon dioxide generated from dry ice, followed by flash column chromatography over silica gel (230-400 mesh) using 50% ethyl acetate in hexane as the eluent, the title compound was obtained as a white solid (0.34g, 85%). 'H NMR (300 MHz, CDC13): δ 12.43 (br s, IH), 7.94 (d, IH, J= 2.1Hz), 7.42 (d, IH, J- 1.8Hz), 2.06-1.96 (m, IH), 1.92 (s, 2H), 1.42 (s, 6H), 1.12- 0.97 (m, 2H), 0.95-0.81 (m, 2H), 0.77-0.60 (m, 4H). Spiro[2H-l-benzopyran-2.r-cyclopropane]-6-carboxylic acid. 8- cyclopropyl-3.4-dihydro-4.4-dimethyl-, 4-(tert-butoxycarbonylmethyl)phenyl ester (Compound 57, General Formula 1) A solution of sρiro[2H- 1 -benzopyran-2, 1 ' -cy cloρropane]-6- carboxy lie acid, 8-cy clopropy 1-3, 4-dihydro-4,4-dimethyl- (Intermediate 49, 0.06g, 0.22mmol) in anhydrous dichloromethane (5mL) was treated with rt-butyl-4-hydroxy phenyl acetate (Reagent E, 0.05g, 0.22mmol) followed by 1 -(3-dimethylaminoproρyl)-3-ethylcarbodiimide hydrochloride (0.11 g, 0.22mmol) and 4-dimethylaminopyridine (0.028g, 0.22mmol). The resulting solution was stirred at ambient temperature overnight. The reaction mixture was subjected to flash column chromatography over silica gel (230-400 mesh) using 7%> ethyl acetate in hexane as the eluent to afford the title compound as a clear oil that solidified on standing (0.048g, 48%>). 'H NMR (300 MHz, CDC13): δ 7.91 (d, IH, J= 2.1Hz), 7.41 (d, IH, J= 1.8Hz), 7.24 (d, 2H, J= 8.8Hz), 7.05 (d, 2H, J= 8.5Hz), 3.46 (s, 2H), 1.97- 1.90 (m, IH), 1.87 (s, 2H), 1.37 (s, 9H), 1.36 (s, 6H), 1.04-0.90 (m, 2H), 0.87-0.75 (m, 2H), 0.65-0.56 (m, 4H). Spiro[2H-l -benzopyran-2.1' -cyclopropane] -6-carboxy lie acid, 8- cvclopropyl-3.4-dihvdro-4.4-dimethy 1-. 4-(carboxymethv Dpheny 1 ester (Compound 58, General Formula 1) A solution of spiro [2H- 1 -benzopyran-2, 1 ' -cyclopropane] -6- carboxylic acid, 8-cyclopropyl-3,4-dihydro-4,4-dimethyl-, 4-(tert- butoxycarbonylmethyl)phenyl ester (Compound 57, 0.048g, 0.105mmol) was treated with 2mL of trifluoroacetic acid and stirred at ambient temperature for 2h. The trifluoroacetic acid was distilled off under reduced pressure and the residue was subjected to preparative reverse phase HPLC using 10%) water in acetonitrile as the mobile phase to afford the title compound as a white solid (0.029g, 55%). Η NMR (300 MHz, CDC13): δ 7.99 (d, IH, J- 2.2Hz), 7.48 (d, IH, J= 1.9Hz), 7.34 (d, 2H, J= 8.5Hz), 7.16 (d, 2H, J= 8.5Hz), 3.67 (s, 2H), 2.07- 1.97 (m, IH), 1.95 (s, 2H), 1.44 (s, 6H), 1.09-1.04 (m, 2H), 0.93-0.85 (m, 2H), 0.79-0.64 (m, 4H). Spiro[2H-l-benzoρyran-2.T-cvclopropane]-6-carboxylic acid, 8- cvclopropyl-3.4-dihvdro-4.4-dimethyl-. 3-(tgr?-butoxycarbonylmethyl)phenyl ester (Compound 59, General Formula 1) A solution of spiro[2H-l-benzoρyran-2,l'-cyclopropane]-6- carboxylic acid, 8-cycloproρyl-3,4-dihydro-4,4-dimethyl- (Intermediate 49, 0.05g, 0.18mmol) in anhydrous dichloromethane (5mL) was treated with tert-butyl-3-hydroxy phenyl acetate (Reagent F, 0.04g, 0.18mmol) followed by 1 -(3 -dimethy laminopropy l)-3 -ethy lcarbodiimide hydrochloride (0.029g, 0. lmmol) and 4-dimethylaminopyridine (0.022g, 0.18mmol). The resulting solution was stirred at ambient temperature overnight. The reaction mixture was subjected to flash column chromatography over silica gel (230-400 mesh) using 7% ethyl acetate in hexane as the eluent to afford the title compound as a clear oil that solidified on standing (0.020g, 23%>). Η MR (300 MHz, CDC13): δ 7.98 (d, IH, J= 1.9Hz), 7.48 (d, IH, J= 2.2Hz), 7.38 (t, IH, J= 7.7Hz), 7.19-7.11 (m, 3H), 3.68 (s, 2H), 2.05-1.94 (m, IH), 1.95 (s, 2H), 1.44 (s, 15H), 1.09-1.04 (m, 2H), 0.96-0.82 (m, 2H), 0.73-0.64 (m, 4H). Spiro[2H-l-benzopyran-2.r-cyclopropane1-6-carhoxylic acid. 8- cv clopropy 1-3.4-dihy dro-4.4-dimethy 1-. 3 -(carboxymethv Dphenyl ester (Compound 60, General Formula 1) A solution of spiro[2H-l-benzopyran-2,r-cyclopropane]-6- carboxylic acid, 8-cy clopropy 1-3, 4-dihy dro-4,4-dimethyl-, 3-(tert- butoxycarbonylmethyl)ρhenyl ester (Compound 59, 0.020g, 0.04mmol) was treated with 2mL of trifluoroacetic acid and stirred at ambient temperature for 2h. The trifluoroacetic acid was distilled off under reduced pressure and the residue was subjected to preparative reverse phase HPLC using 10%> water in acetonitrile as the mobile phase to afford the title compound as a white solid (0.0125g, 62%). Η NMR (300 MHz, CDC13): δ 7.99 (d, IH, = 2.1Hz), 7.49 (d, IH, J= 2.1Hz), 7.36 (t, IH, J= 7.8Hz), 7.18-7.08 (m, 3H), 3.56 (s, 2H), 2.06-1.95 (m, IH), 1.95 (s, 2H), 1.45 (s, 6H), 1.09-1.05 ( , 2H), 0.96-0.84 (m, 2H), 0.74-0.65 (m, 4H). 6-Bromo-4.4-dimethyl- 1.2.3.4-tetrahydro-qumoline- 1 -carbaldehyde (Intermediate 50) A solution of 6-bromo-4,4-dimethy 1- 1 ,2,3 ,4-tetrahy droquinoline, available in accordance with United States Patent No. 5,089,509, the specification of which is incorporated herein by reference (1.8g, 7.5mmol) in lOmL of formic acid was refluxed for 3h. The reaction mixture was then cooled to ambient temperature and poured into ice-cold saturated aqueous sodium bicarbonate solution and extracted with diethyl ether (x2). The combined organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to a residue which was subjected to flash column chromatography over silica gel (230-400 mesh) using 15-25%) ethyl acetate in hexane as the eluent to afford the title compound as a pale yellow solid (1.8g, 90%). 'H NMR (300 MHz, CDC13): δ 8.71 (s, IH), 7.45 (d, IH, J= 2.2Hz), 7.28 (dd, IH, J= 2.2, 8.5Hz), 6.98 (d, IH, J= 8.5Hz), 3.78 (t, 2H, J= 6.3Hz), 1.74 (t, 2H, J= 6.3Hz), 1.28 (s, 6H). 6-Bromo- 1 -cvcloρropyl-4.4-dimethyl- 1.2.3.4-tetrahvdroquinoline (Intermediate 51) A stirred, cooled (0°C) solution of 6-bromo-4,4-dnnethyl- 1,2,3,4- tetrahydro-quinoline- 1 -carbaldehyde (Intermediate 50, 21.8, 6.7mmol) in anhydrous tetrahydrofuran (20mL) under argon was treated with titanium tetra-wopropoxide (2.15mL, 7.39mmol) followed by 3M solution of ethyl magnesium bromide in diethyl ether (5.6mL, 16.8mmol) and the reaction mixture was then heated at 50°C overnight. It was then cooled in an ice- bath, quenched with saturated aqueous ammonium chloride solution and extracted with diethyl ether (x2). The combined organic phase was dried over anhydrous sodium sulfate, filtered over celite and evaporated in vacuo to residue which was subjected to flash column chromatography over silica gel (230-400 mesh) using 5% ethyl acetate in hexane as the eluent to afford the title compound as an oil (1.2g, 64%). 'H NMR (300 MHz, CDC13): δ 7.24 (d, IH, J= 2.5Hz), 7.12 (dd, IH, J= 2.2, 8.8Hz), 7.01 (d, IH, J= 8.8Hz), 3.20 (t, 2H, J= 6.0Hz), 2.27-2.20 (m, IH), 1.68 (t, 2H, J= 5.9Hz), 1.24 (s, 3H), 1.23 (s, 3H), 0.83-0.77 (m, 2H), 0.60-0.55 (m, 2H). l-Cyclopropyl-6-trimethylsilanylethynyl-4.4-dimethyl-l,2,3,4-tetrahydro- quinoline (Intermediate 52) Following general procedure D and using 6-bromo- 1 -cy clopropy 1-4,4- dimethy 1-1, 2,3, 4-tetrahydro quinoline (Intermediate 51, 0.8g, 2.86mmol), (trimethylsilyl)acetylene (5mL, 35mmol), triethyl amine (lOmL), anhydrous tetrahydrofuran, copper(I)iodide (O.OδOg, 0.42mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.240g, 0.34mmol), the title compound was obtained as an oil (0.67g, 79%). 'H NMR (300 MHz, CDCl3): δ 7.33 (d, 1H, J = 1.8Hz), 7.22 (dd, 1H, J= 2.1, 8.5Hz), 7.06 (d, IH, J= 8.5Hz), 3.27 (t, 2H, J= 5.9Hz), 2.37-2.31 (m, IH), 1.70 (t, 2H, J= 6.0Hz), 1.28 (s, 6H), 0.89-0.82 (m, 2H), 0.66-0.60 (m, 2H), 0.28 (s, 9H). l-Cyclopropyl-6-ethvnyl-4.4-dύnethyl-1.2.3.4-tetrahvdroquinoline: (Intermediate 53) Following general procedure E and using 1-cy clopropy 1-6- trimethylsilanylethynyl-4,4-dimethyl-l,2,3,4-tetrahydroquinoline (Intermediate 52, 0.40g, 1.34mmol), methanol and potassium carbonate (0.2g, 1.47mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 2%o ethyl acetate in hexane as the eluent, the title compound was obtained as an oil (0.17g, 56%o). 'H NMR (300 MHz, CDC13): δ 7.3δ (d, IH, J= 2.1Hz), 7.27 (dd, IH, J= 2.1, 8.5Hz), 7.11 (d, IH, J= 8.5Hz), 3.30 (t, 2H, J= 6.0Hz), 3.02 (s, IH), 2.40-2.34 (m, IH), 1.74 (t, 2H, J= 6.0Hz), 1.30 (s, 6H), 0.93-0.δ5 (m, 2H), 0.70-0.63 (m, 2H). 4-(l-Cvcloρroρyl-4.4-dimethyl-1.2.3.4-tetrahvdro-quinolin-6-yl-ethvnyl)- benzoic acid ethyl ester (Compound 61, General Formula 7) Following general procedure F and using l-cyclopropyl-6-ethynyl- 4,4-dimethy 1- 1 ,2,3 ,4-tetrahy dro quinoline (Intermediate 53, 0.11 g, 0.43mmol), ethyl-4-iodo-benzoate (Reagent A, 0.1 lg, 0.9mmol), triethyl amine (3mL), tetrahydrofuran(3mL), copper(I)iodide(0.02g, 0. lmmol) and dichlorobis(triphenylphosphine)palladium(II) (0.060g, 0.0δ5mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 5- 10% ethyl acetate in hexane as the eluent, the title compound was obtained (0.05g, 31%). Η NMR (300 MHz, CDC13): δ 7.99 (d, 2H, J= 8.2Hz), 7.54 (d, 2H, J= δ.2Hz), 7.37 (d, IH, J= 2.1Hz), 7.26 (dd, IH, J= 2.1, δ.5Hz), 7.10 (d, IH, J = δ.δHz), 4.37 (q, 2H, J= 7.1Hz), 3.2δ (t, 2H, J= 6.0Hz), 2.40-2.33 (m, IH), 1.71 (t, 2H, J= 5.δHz), 1.40 (t, 3H, J= 7.0Hz), 1.27 (s, 6H), 0.94-0.δ2 (m, 2H), 0.65-0.60 (m, 2H). 4-( 1 -Cvcloρroρyl-4,4-dimethyl- 1.2.3.4-tetrahydroquinolin-6-yl-ethvny D- benzoic acid (Compound 62, General Formula 7) Following general procedure L and using 4-(l-cy clopropy 1-4,4- dimethyl- 1,2,3 ,4-tetrahy dro-quinolin-6-y lethyny l)-benzoic acid ethyl ester (Compound 61, 0.05g, 0.13mmol), 5mL of ethanol and 5M sodium hydroxide solution (2mL) followed by recrystallization from hot ethyl acetate, the title compound was obtained as a solid (0.030g, 64%). Η NMR (300 MHz, DMSO-d6): δ 7.92 (d, 2H, J= 8.2Hz), 7.57 (d, 2H, J= 8.2Hz), 7.33 (d, IH, J= 1.9Hz), 7.23 (dd, IH, J= 1.9, 8.5Hz), 7.06 (d, IH, J = δ.δHz), 3.25 (t, 2H, J= 5.8Hz), 2.41-2.34 (m, IH), 1.64 (t, 2H, J= 5.6Hz), 1.21 (s, 6H), 0.87-0.81 (m, 2H), 0.59-0.54 (m, 2H). [4-( 1 -Cvcloproρyl-4.4-dimethyl- 1.2.3.4-tetrahydro-quinolin-6-y 1- ethynvDphenyl] acetic acid methyl ester (Compound 63, General Formula 7) Following general procedure F and using 1-cy clopropy 1-6-ethynyl- 4,4-dimethyl-l,2,3,4-tetrahydro quinoline (Intermediate 53, 0.05g, 0.22mmol), methyl-4-iodo-phenyl acetate (Reagent B, 0.055g, 0.2mmol), triethyl amine (5mL), tetrahydrofuran, copper(I)iodide(0.025g, 0.13mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.75g, 0.1 lmmol) followed preparative normal phase HPLC using 10 % ethyl acetate in hexane as the mobile phase, the title compound was obtained (0.089g, 100%). 'H NMR (300 MHz, CDC13): δ 7.47 (d, 2H, J= 8.8Hz), 7.45 (d, IH, J= l.δHz), 7.35-7.22 (m, 2H), 7.10 (d, 2H, J- 8.8Hz), 3.70 (s, 3H), 3.63 (s, 2H), 3.27 (t, 2H, J= 6.0Hz), 2.37-2.31 (m, IH), 1.71 (t, 2H, J= 6.0Hz), 1.27 (s, 6H), 0.89-0.81 (m, 2H), 0.65-0.60 (m, 2H). r4-(l-Cvclopropyl-4.4-dimethyl-1.2.3.4-tetrahydro-quinolin-6-yl-ethvnv1)-2- fluoro-phenyll acetic acid ethyl ester (Compound 64, General Formula 7) Following general procedure F and using 1-cy clopropy 1-6-ethynyl- 4,4-dimethyl- 1 ,2,3,4-tetrahydro quinoline (Intermediate 53, 0.11 g, 0.49mmol), ethyl-2-fluoro-4-iodo-ρhenyl acetate (Reagent C, 0.1 lg, 0.9mmol), triethyl amine (3mL), tetrahydrofuran(3mL), copρer(I)iodide(0.06g, 0.32mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.25g, 0.36mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 10 % ethyl acetate in hexane as the eluent, the title compound was obtained (O.lg, 51%). Η NMR (300 MHz, CDC13): δ 7.34 (d, IH, J= 2.1Hz), 7.25-7.17 (m, 3H), 7.09 (d, 2H, J= δ.δHz), 4.17 (q, 2H, J= 7.1Hz), 3.65 (s, 2H), 3.27 (t, 2H, J= 6.0Hz), 2.38-2.31 (m, IH), 1.69 (t, 2H, J= 6.0Hz), 1.27 (s, 6H), 1.25 (t, 3H, J= 7.1Hz), 0.88-0.81 (m, 2H), 0.65-0.59 (m, 2H). N-(4-Bromoρhenyl)-N-methyl-3-methyl-2-butenamide (Intermediate 54) 3,3-Dimethylacryloyl chloride (3mL, 27mmoI) was added to a solution of 4-bromo-N-methyl-aniline (4.55g, 25mmol) in 150mL of dichloromethane followed after 5 minutes by triethyl amine (5mL, 33mmol). After 2.5h at ambient temperature, the reaction mixture was washed with water and the organic phase was dried over anhydrous sodium sulfate and evaporated in vacuo to afford the title product as a brown oil in quantitative yield. 'H-NMR (300 MHz, CDC13): d 1.71 (s, 3H), 2.1 l(s, 3H), 3.28(s, 3H), 5.47(s, IH), 7.05(d, J = 8.5Hz, 2H), 7.50(d, J = 8.2Hz, 2H). 6-Bromo- 1.4.4-trimethyl-2-oxo- 1.2.3.4-tetrahvdroquinoline (Intermediate 55) N-(4-bromopheny l)-N-methy 1-3 -methy 1-2-butenamide (Intermediate 54, 6.42g, 24mmol) was heated to 130°C and aluminum chloride (5g, 37.4mmol) was added in portions over 0.5h. The reaction mixture was stirred for 1 hour at the same temperature and then cooled to room temperature. Ice was added cautiously to the solid, followed by ~200mL of iced water. The reaction mixture was then extracted with ether (x2) and dichloromethane (xl) and the combined organic phase was dried over anhydrous magnesium sulfate and evaporated in vacuo to yield a brown solid. The solid was treated with hexane-dichloromethane and filtered to afford 1.7g of product. The mother liquor was evaporated and purified by flash column chromatography on silica gel (230-400 mesh) to afford 2.9g of the title compound as a solid (total 72%). 'H-NMR (300 MHz, CDC13): δl.29(s, 6H), 2.49(s, 2H), 3.36(s, 3H), 6.87(d, J - δ.2Hz, IH), 7.36(dd, J = 2.0, δ.5Hz, IH), 7.39(d, J = 2.0Hz, IH). 6-Bromo- 1 ,4.4-trimethylspiro[2H- 1 - 1.2.3.4-tetrahydroquinoline-2.1 ' - cyclopropane] (Intermediate 56) A stirred, cooled (-78°C) 3M solution of ethyl magnesium bromide in ether (8. lmL, 24.25mmol) under argon was treated with anhydrous tetrahydrofuran (20mL) followed by a solution of titanium tetra-wo- propoxide (3.15mL, 10.2mmol) in tetrahydrofuran (lOmL). A solution of 6- bromo- 1 ,4,4-trimethy 1-2-oxo- 1 ,2,3 ,4-tetrahy droquinoline (Intermediate 55, 2.6g, 9.7mmol) was cannulated into the reaction mixture and the solution was allowed to warm to room temperature overnight. It was then cooled in an ice-bath, quenched with saturated aqueous ammonium chloride solution, filtered over celite and the aqueous phase was extracted with diethyl ether (x2). The combined organic phase was dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford an orange oil. Flash column chromatography over silica gel (230-400 mesh) using 2-4% ethyl acetate in hexane as the eluent afforded the title compound as an oil which was -70%) pure ( 1.7g, 63 %) and 0.5 g of recovered starting material. 'H-NMR (300 MHz, CDC13): δ 0.58(t, J= 6.0Hz, 2H), 0.91(t, J= 6.0Hz, 2H), 1.35 (s, 6H), 1.70(s, 2H), 2.68 (s, 3H), 6.59 (d, J= 8.8Hz, IH), 7.16(dd, J= 2.3, δ.δHz, IH), 7.33(d, J= 2.3Hz, IH). 1.4.4-Trimethyl-6-(trimethylsilanyl)ethvnylsρiro[2H- 1- 1.2.3.4- tetrahvdroquinoline-2.1 '-cyclopropane] (Intermediate 57) Following general procedure D and using 6-bromo- 1 ,4,4- trimethylspiro[2H- 1 - 1 ,2,3,4-tetrahydroquinoline-2, 1 ' -cyclopropane] (Intermediate 56, 0.56g, 2mmol), (trimethylsilyl)acetylene (1.13mL, 8mmol), triethyl amine (4mL), anhydrous tetrahydrofuran (5mL), copρer(I)iodide (0.08g, 0.4mmol) and dichlorobis(triphenylρhosphine)palladium(II) (0.28g, O mmol), followed by flash column chromatography over silica gel (230-400 mesh) using hexane- 2% ethyl acetate in hexane as the eluent, the title compound was obtained as an oil (0.42g, 70%). Η NMR (300 MHz, CDC13): δ 0.023(s, 9H), 0.33(t, J= 6.1Hz, 2H), 0.71(t, J = 6.1Hz, 2H), 1.10(s, 6H), 1.45(s, 2H), 2.41 (s, 3H), 6.3 l(d, J= 8.5Hz, IH), 6.96 (dd, J= 2.1, δ.5Hz, IH), 7.10(d, J= 2.1Hz, IH). Benzoic acid. 4-[(1.4.4-trimethylspiro[2H-l-1.2.3.4-tetrahvdroquinoline- 2,1 '-cyclopropane]-6-yl)ethynyl]-ethyl ester (Compound 65, General Formula 1) Following general procedure E and using a solution of 1,4,4- trimethyl-6-(trimethylsilanyl)ethynylspiro [2H- 1 - 1 ,2,3 ,4-tetrahy droquinoline- 2, T -cyclopropane] (Intermediate 57, 0.416g, 1.4mmol), methanol ( 1 OmL), ethyl acetate (2mL) and potassium carbonate (1.08g, mmol) a silyl deprotected acetylenic intermediate was obtained which was used directly for the next step (0.25g, 79%>). Following general procedure F and using part of the acetylenic intermediate obtained as above (0.1 lg, 0.5mmol), ethyl-4- iodo benzoate (Reagent A, 0.112g, 0.4mmol), triethyl amine (lmL), tetrahydrofuran (2.5mL), copper(I)iodide (0.050g, 0.26mmol) and tetrakis(triphenylphosphine)palladium(0)(0.096g , 0.17mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 8%> ethyl acetate in hexane as the eluent and preparative HPLC on Partisil 10 silica column using 10% ethyl acetate in hexane as the mobile phase, the title compound was obtained as a yellow oil (0.048g, 26%o). 'H-NMR (300 MHz, CDC13): δ 0.60 (t, J= 6.1Hz, 2H), 0.99(t, J= 6.1Hz, 2H), 1.37(s, 6H), 1.42(t, J= 7.0Hz, 3H), 1.73(s, 2H), 2.68(s, 3H), 4.40 (q, J = 7.0Hz, 2H), 6.61(d, J = 8.8Hz, IH), 7.28 (dd, J = 2.1, 8.5Hz, IH), 7.42 (d, J = 2.1Hz, IH), 7.57(d, J = 8.2Hz, 2H), 8.01(d, J = δ.2Hz, 2H). Benzoic acid. 4-[( 1.4.4-trimethylspiro[2H- 1 - 1.2.3.4-tetrahydroquinoline- 2.1 '-cvcloρropane]-6-yl)ethynyl]- (Compound 66, General Formula 1) Following general procedure I and using benzoic acid, 4-[(l,4,4- trimethylspiro[2H-l-l,2,3,4-tetrahydroqunoline-2, -cyclopropane]-6- yl)ethynyl]-ethyl ester (Compound 65, 0.03g, 0.08mmol), ethanol (2mL), tetrahydrofuran (2mL) and IM aqueous sodium hydroxide solution (lmL), the title compound was obtained as a yellow solid (0.020g, 67%). 'H-NMR (300 MHz, CD3COCD3): δ 0.60 (t, J= 5.8Hz, 2H)5 1.03(t, J= 5.8Hz, 2H), 1.34(s, 6H), 1.74(s, 2H), 2.69(s, 3H), 6.60(d, J = δ.5Hz, IH), 7.23 (dd, = 2.0, δ.4Hz, IH), 7.39 (d, J = 2.0Hz, IH), 7.58(d, J = δ.2Hz, 2H), 8.01(d, y = 8.2Hz, 2H). Esterification Methods: Method A: The carboxylic acid was combined with a solution of the desired alcohol and concentrated sulfuric acid (20 to 1 v/v) and the resulting mixture or solution (0.75 to 1.0 M) heated to reflux overnight. The solution was cooled to room temperature, diluted with Et,0, and washed with H20, saturated aqueous NaHC03, and saturated aqueous NaCl before being dried over MgS04. Concentration of the dry solution under reduced pressure afforded the desired carboxylic ester of sufficient purity to be used directly in the next reaction. Method B: To a solution (0.67 to 1.0M) of the carboxylic acid in acetone was added 1.1 equivalents of the desired alkyl halide and 1.0 equivalents of solid potassium carbonate. The resulting mixture was heated to reflux for 2h and then allowed to stir at room temperature overnight. The mixture was filtered and the filtrate concentrated under reduced pressure. The product was isolated from the residue by column chromatography using silica gel as the solid phase. Method C: A solution (IM) of the carboxylic acid in thionyl chloride was heated at reflux until analysis of a reaction aliquot by IR spectroscopy showed the absence of the aryl carboxylic acid carbonyl band ( 1705 - 16δ0 cm"1). The solution was cooled to room temperature and concentrated under reduced pressure to give the crude acyl chloride. The acyl chloride was dissolved in CH2C12 and the resulting solution (0.5 to 0.75M) treated with 1.1 equivalents the desired alcohol and 2.0 equivalents of pyridine. After stirring overnight at room temperature the solution was diluted with Et20 and washed with H20, 10% aqueous HC1, saturated aqueous NaHC03, and saturated aqueous NaCl before being dried over Na^O,*. Concentration of the dry solution under reduced pressure followed by column chromatography afforded the desired ester. GENERAL PROCEDURE 1 (preparation of Enol ethers): A solution (0.35 M) of the aryl ester in anhydrous THF was cooled to 0 °C and treated with 1.0 equivalents of Tebbe's Reagent ([μ-chloro-μ- methylene[bis(cyclopentadienyl)titanium]-dimethylaluminum] 0.5 M in toluene). After 30 minutes the solution was warmed to room temperature and stirred for 30 minutes before being carefully added to a 0.1 N NaOH solution at 0 °C. This mixture was treated with hexanes and the solids removed by filtration through a pad of Celite. The solids were washed with hexanes and the filtrate passed through a second pad of Celite to remove any newly formed solids. The organic layer was dried (Na2S04) and concentrated under reduced pressure. The desired enol ether was isolated from the residue by column chromatography using 1-2%) of Et3N added to the eluant. (note: prolonged exposure of the product to the column can result in hydrolysis and formation of the corresponding methyl ketone.) GENERAL PROCEDURE 2 (cvclopropanation of the enol ethers): To a solution (0.3 M) of the enol ether in anhydrous Et20 was added 2.0 equivalent of Et2Zn (as a solution in hexanes) and 2.0 equivalents of CH2I2. The resulting solution was heated to reflux until analysis of a reaction aliquot (by TLC or 'H NMR) indicated that all of the starting enol ether had been consumed, (note: Additional equal amounts of Et2Zn and CH2I2 can be added to drive the reaction to completion.) Upon cooling to room temperature the reaction was carefully quenched by the addition of saturated aqueous NH4C1. The resulting mixture is extracted with Et20 and the combined organic layers washed with H20 and saturated aqueous NaCl before being dried over Na2S04 and concentrated under reduced pressure. The product is isolated from the residue by column chromatography. 1 -Bromo-4-( 1 -methoxyvinyD-benzene: (Intermediate 58) Using General Procedure 1; methyl 4-bromo-benzoate (600.0 mg, 2.7δ mmols), and 5.6 mL of Tebbe's Reagent (794.0 mg, 2.7δ mmols) afforded 420.0 mg (70%) of the title compound as a colorless oil after column chromatography ( 100% hexanes). Η NMR (CDC13) δ: 7.4δ - 7.45 (4H, m), 4.64 (IH, d, J = 2.9 Hz), 4.23 (IH, d, J = 2.9 Hz), 3.73 (3H, s). 1 -Bromo-4-( 1 -methoxycy clopropy D-benzene (Intermediate 59) Using General Procedure 2; 1 -bromo-4-( 1 -methoxy viny l)-benzene (Intermediate 58, 410. 0 mg, 1.92 mmols), Et^Zn (711.3 mg, 5.76 mmols), and CH2I2 (1.54 g, 5.76 mmols) in 4.0 mL E afforded 300.0 mg (69%) of the title compound as a colorless oil after chromatography (0-3% EtOAc - hexanes). Η NMR (CDC13) δ: 7.46 (2H, d, J = 8.5 Hz), 7.18 (2H, d, J = 8.5 Hz), 3.21 (3H, s), 1.19 (2H, m), 0.94 (2H, m). [4-(l-Methoxycvcloproρyl)-ρhenylethvnyl]-trimethy lsilane (Intermediate 60) Using General Procedure D ; 1 -bromo-4-( 1 -methoxycy clopropy 1)- benzene (Intermediate 59, 300.0 mg, 1.32 mmol) in triethylamine (4 mL) and anhydrous tetrahydrofuran (4 mL) was treated with copper(I)iodide (93.0 mg, 0.13 mmol) and then sparged with argon for 5 minutes. Trimethylsilyl acetylene (1.39 g, 14.2 mmols) was then added followed by dichlorobis(triphenylphosphine)palladium(II) (93.0 mg, 0.13 mmol). The resulting reaction mixture was heated to 70 °C for 60h. The title compound (286.0 mg, 90%) was isolated by chromatography (0 - 3%o EtOAc - hexanes). Η NMR (CDCI3) δ: 7.35 (2H, d, J = 7.2 Hz), 7.14 (2H, d, J = 7.2 Hz), 3.14 (3H, s), 1.14 (2H, m), O.δδ (2H, m), 0.17 (9H, s). 1 -Ethvnyl-4-( 1 -methoxycvclopropy D-benzene (Intermediate 61) Using General Procedure E; [4-( 1 -methoxycyclopropyl)- ρhenylethynyl]-trimethy lsilane (Intermediate 60, 2δ5.0 mg, 1.18 mmols) in methanol (lOmL) was treated with potassium carbonate (100.0 mg, 0.72 mmol) and stirred overnight at ambient temperature. The crude alkyne (220 mg, 100%) was used directly in the next reaction. Η MR (CDCI3) δ: 7.46 (2H, d, J = 8.2 Hz), 7.24 (2H, d, J = 8.2 Hz), 3.23 (3H, s), 3.06 (IH, s), 1.22 (2H, m), 0.98 (2H, m). Ethyl 4-[4-(1 -methoxycvclopropyD-phenylethvnyll-benzoate (Compound 67, General Formula 2) Using General Procedure F; l-ethynyl-4-(l-methoxycyclopropyl)- benzene (Intermediate 61, 100.0 mg, 0.47 mmol) and ethyl-4-iodo benzoate (Reagent A, 141.0 mg, 0.51 mmol) in triethyl amine (6 mL) was treated with copper(I)iodide (30.0 mg, 0.16 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (109 mg, 0.16 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-5%> EtOAc - hexanes) afforded 135.0 mg (90%) of the title compound as an orange solid. Η NMR (CDC13) δ: 8.02 (2H, d, J = 8.2 Hz), 7.58 (2H, d, J = 8.8 Hz), 7.52 (2H, d, J = 8.2 Hz), 7.28 (2H, d, J = 8.8 Hz), 4.39 (2H, q, J = 7.1 Hz), 3.25 (3H, s), 1.40 (3H, t, J = 7.1 Hz), 1.23 (2H, m), 1.00 (2H, m). Methyl (4-f4-(l-methoxycyclopropyl)-phenylethynyl]-phenyl}-acetate (Compound 68, General Formula 2) Using General Procedure F; 1 -ethyny l-4-( 1 -methoxycy clopropy 1)- benzene (Intermediate 61, 120.0 mg, 0.56 mmol) and methyl-(4- iodophenyl)-acetate (Reagent B, 154.0 mg, 0.56 mmol) in triethyl amine (6 mL) was treated with copper(I)iodide (35.0 mg, 0.19 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)ρalladium(II) (130 mg, 0.19 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-8% EtOAc - hexanes) afforded 140.0 mg (78%) of the title compound as an orange solid. 'H NMR (CDC13) δ: 7.50 (4H, d, J = δ.l Hz), 7.28 (4H, d, J = 8.1 Hz), 3.76 (3H, s), 3.64 (2H, s), 3.25 (3H, s), 1.22 (2H, m), 0.99 (2H, m). 4-r4-(l-Methoxycycloρropyl)-phenylethynyl]-benzoic acid (Compound 69, General Formula 2) Using General Procedure I; a solution of ethyl 4-[4-( 1 - methoxycy cloproρyl)-phenylethynyl]-benzoate (Compound 67, 110.0 mg, 0.34 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (160.0 mg, 4.0 mmols, 2.0 mL of a 2N aqueous solution) and stirred overnight at room temperature. Work-up afforded 85.0 mg (86%) of the title compound as an orange solid. Η NMR (CDC13) δ: 8.05 (2H), 7.66 (2H), 7.56 (2H, d, J = 8.5 Hz), 7.35 (2H, d, J = 8.6 Hz), 3.22 (3H, s), 1.21 (2H, m), 1.01 (2H, m). (4-[4-( 1 -MethoxycvclopropylVpheny lethvnyl]-phenyll -acetic acid (Compound 70, General Formula 2) Using General Procedure I; a solution of methyl {4-[4-(l- methoxycy clopropy l)-phenylethynyl] -phenyl) -acetate (Compound 68, 100.0 mg, 0.31 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (160.0 mg, 4.0 mmols, 2.0 mL of a 2N aqueous solution) and stirred overnight at room temperature. Work-up afforded 80.0 mg (84%>) of the title compound as an orange solid. Η NMR (CDCI3) δ: 7.49 (4H), 7.27 (4H), 3.66 (2H, s), 3.25 (3H, s), 1.22 (2H, m), 0.99 (2H, m). Isopropyl 4-bromobenzoate (Intermediate 62) Using General Esterification Procedure A; 4-bromobenzoic acid (1.50 g, 7.46 mmols) was combined with isopropyl alcohol to give 1.76 g (97%>) of the title compound as a colorless oil. !H NMR (CDCI3) δ: 7.90 (2H, d, J = 8.5 Hz), 7.57 (2H, d, J = 8.5 Hz), 5.24 (IH, septet, J = 6.2 Hz), 1.37 (6H, d, J = 6.2 Hz). 1 -Bromo-4-( 1 -isopropoxy vinyD-benzene (Intermediate 63) Using General Procedure 1; isopropyl 4-bromobenzoate (Intermediate 62, 780.0 mg, 3.20 mmols) and 6.4 mL of Tebbe's Reagent (910.7 mg, 3.20 mmols) afforded 328.0 mg (43%) of the title compound as a colorless oil after column chromatography (100%> hexanes). 'H NMR (CDC13) δ: 7.46 (4H, m), 4.66 (IH, d, J = 2.6 Hz), 4.40 (IH, septet, J = 6.2 Hz), 4.21 (IH, d, J = 2.6 Hz), 1.34 (6H, d, J = 6.2 Hz). 1 -Bromo-4- 1 -isopropoxycy clopropy D-benzene (Intermediate 64) Using General Procedure 2 ; 1 -bromo-4-( 1 -isopropoxy viny l)-benzene (Intermediate 63, 328. 0 mg, 1.36 mmols), Et2Zn (335.9 mg, 2.72 mmols), and CH2I2 (728.0 mg, 2.72 mmols) in 4.0 mL E^O afforded 240.0 mg (70%) of the title compound as a colorless oil after chromatography (3% EtOAc - hexanes). 'H NMR (CDCI3) δ: 7.43 (2H, d, J = 8.5 Hz), 7.27 (2H, d, J = 8.5 Hz), 3.70 (IH, septet, J = 6.2 Hz), 1.18 (2H, m), 1.06 (6H, d, J = 6.2 Hz), 0.91 (2H, m). [4-( 1 -Isopropoxy cy clopropy l)-pheny lethyny l]-trimethy lsilane (Intermediate 65) Using General Procedure D; 1 -bromo-4-( 1 -isopropoxy cy clopropy 1)- benzene (Intermediate 64, 240.0 mg, 0.94 mmol) in triethylamine (8 mL) was treated with copρer(I)iodide (18.0 mg, 0.094 mmol) and then sparged with argon for 5 minutes. Trimethylsilyl acetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis-(triρhenylphosρhine)palladium(II) (66.0 mg, 0.094 mmol). The resulting reaction mixture was heated to 70 °C for 5 days. The title compound (250.0 mg, 98%>) was isolated by chromatography (0 - 3% EtOAc - hexanes) as an orange oil. 'H NMR (CDCI3) δ: 7.41 (2H, d, J = 7.9 Hz), 7.31 (2H, d, J = 7.9 Hz), 3.70 (IH, septet, J = 6.2 Hz), 1.18 (2H, m), 1.05 (6H, d, J = 6.2 Hz), 0.93 (2H, m), 0.94 (9H, s). 1 -Ethynyl-4-( 1 -isopropoxy cy clopropy l)-benzene (Intermediate 66) Using General Procedure E; [4-( 1 -isopropoxy cyclopropy 1)- phenylethynyl]-trimethylsilane (Intermediate 65, 260.0 mg, 0.96 mmol) in methanol (10 mL) was treated with potassium carbonate (100.0 mg, 0.72 mmol) and stirred overnight at ambient temperature. The crude alkyne (220 mg, 100%>) was used directly in the next reaction. Η NMR (CDC13) δ: 7.45 (2H, d, J = 8.8 Hz), 7.35 (2H, d, J = 8.8 Hz), 3.72 (IH, septet, J = 6.2 Hz), 3.06 (IH, s), 1.20 (2H, m), 1.07 (6H, d, J = 6.2 Hz), 0.95 (2H, m). Ethyl 4-[4-( 1 -isopropoxycvclopropyl)-phenylethvnyl]-benzoate (Compound 71, General Formula 2) Using General Procedure F; 1 -ethynyl-4-( 1 -isopropoxy cyclopropy 1)- benzene (Intermediate 66, 114.0 mg, 0.57 mmol) and ethyl-4-iodo benzoate (Reagent A, 731.0 mg, 0.63 mmol) in triethylamine (8 mL) was treated with copper(I)iodide (36.0 mg, 0.19 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (133 mg, 0.19 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc - hexanes) afforded 151.0 mg (76%) of the title compound as an orange solid. 'H NMR (CDC13) δ: 8.02 (2H, d, J = 7.6 Hz), 7.58 (2H, d, J = 7.6 Hz), 7.50 (2H, d, J = 7.8 Hz), 7.39 (2H, d, J = 7.8 Hz), 4.39 (2H, q, J = 7.1 Hz), 3.74 (IH, septet, J = 6.2 Hz), 1.40 (3H, t, J = 7.1 Hz), 1.22 (2H, m), 1.08 (6H, d, J = 6.2 Hz), 0.97 (2H, m). Methyl ( 4- \4-( 1 -isopropoxycv clopropyD-phenylethvnyl] -phenyl} -acetate (Compound 72, General Formula 2) Using General Procedure F ; 1 -ethyny l-4-( 1 -isopropoxy cyclopropy 1)- benzene (Intermediate 66, 95.0 mg, 0.45 mmol) and methyl-(4- iodophenyl)-acetate (Reagent B, 131.0 mg, 0.45 mmol) in triethylamine (6 mL) was treated with copper(I)iodide (30.0 mg, 0.16 mmol) and sparged with argon for 5 minutes. Dichlorobis(triρhenylρhosphine)palladium(II) (111 mg, 0.16 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-8% EtOAc - hexanes) afforded 110.0 mg (70%) of the title compound as an orange oil. 'H NMR (CDC13) δ: 7.20 (4H), 7.08 (2H, d, J = 7.0 Hz), 6.97 (2H, d, J = 7.9 Hz), 3.45 (IH, septet, J = 6.2 Hz), 3.41 (3H, s), 3.35 (2H, s), 0.91 (2H, m), 0.79 (6H, d, J = 6.2 Hz), 0.68 (2H, m). 4-[4-(l-Isoρropoxycvcloρropyl)-phenylethvnyl]-benzoic acid (Compound 73, General Formula 2) Using General Procedure I; a solution of ethyl 4-[4-(l- isoρropoxycyclopropyl)-ρhenylethynyl]-benzoate (Compound 71, 110.0 mg, 0.32 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 89.0 mg (88%>) of the title compound as a yellow solid. 'H NMR (CDCI3) δ: 8.06 (2H, d, J = 8.2 Hz), 7.66 (2H, d, J = 8.2 Hz), 7.55 (2H, d, J = 8.2 Hz), 7.46 (2H, d, J = 8.2 Hz), 3.73 (IH, septet, J = 6.2 Hz), 1.18 (2H, m), 1.04 (6H, d, J = 6.2 Hz), 0.99 (2H, m). (4-l"4-( 1 -Isopropoxy cvclopropyl)-phenylethvnyl]-phenvU-acetic acid (Compound 74, General Formula 2) Using General Procedure I; a solution of methyl {4-[4-( 1 - isoproρoxycycloρropyl)-phenylethynyl]-ρhenyl}-acetate (Compound 72, 80.0 mg, 0.23 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (80.0 mg, 2.0 mmols, 2.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 48.0 mg (56%) of the title compound as a solid. 'H NMR (CDC13) δ: 7.20 (2H, d, J = 8.2 Hz), 7.19 (2H, d, J = 8.8 Hz), 7.09 (2H, d, J = 8.8 Hz), 6.98 (2H, d, J = 8.2 Hz), 3.46 (IH, septet, J = 6.2 Hz), 3.37 (2H, s), 0.92 (2H, m), 0.79 (6H, d, J = 6.2 Hz), 0.67 (2H, m). Benzyl 4-bromobenzoate (Intermediate 67) Using General Esterification Method B; 4-bromobenzoic acid (2.01 g, 10.0 mmols), benzyl bromide (1.89 g, 11.1 mmols), and K2C03 (1.40 g, 10.0 mmols) afforded 2.33 g (80%) of the title compound as a colorless solid after column chromatography (3- 10% EtOAc - hexanes). Η NMR (CDCI3) δ: 7.89 (2H, d, J = 8.5 Hz), 7.52 (2H, d, J = 8.5 Hz), 7.43 - 7.31 (5H), 5.33 (2H, s). 1 -Bromo-4-( 1 -benzy loxy viny D-benzene (Intermediate 68) Using General Procedure 1; benzyl 4-bromobenzoate (Intermediate 67, 920.0 mg, 3.16 mmols) and 6.3 mL of Tebbe's Reagent (897.0 mg, 3.16 mmols) afforded 640.0 mg (70%) of the title compo nd after column chromatography ( 100% hexanes). 'H NMR (CDCI3) δ: 7.55 - 7.35 (9H), 4.95 (2H, s), 4.73 (IH, d, J = 2.9 Hz), 4.34 (lH, d, J = 2.9 Hz). l-Bromo-4-(l-benzyloxycyclopropyl)-benzene (Intermediate 69) Using General Procedure 2 ; 1 -bromo-4-( 1 -benzy loxy viny l)-benzene (Intermediate 68, 280. 0 mg, 0.97 mmol), Et2Zn (247.0 mg, 2.0 mmols), and CH2I2 (536.0 mg, 2.0 mmols) in 2.0 mL Et20 afforded 159.0 mg (53%) of the title compound as a colorless solid after chromatography (2-5% EtOAc - hexanes). 'H NMR (CDCI3) δ: 7.49 - 7.24 (9H), 4.41 (2H, s), 1.29 (2H, m), 1.00 (2H, m). l"4-( 1 -Benzyloxycvclopropyl)-ρhenylethvnyl]-trimethylsilane (Intermediate 70) Using General Procedure D; l-bromo-4-(l-benzyloxycycloρroρyl benzene (Intermediate 69, 160.0 mg, 0.53 mmol) in triethylamine (5 mL) was treated with copρer(I)iodide (10.0 mg, 0.05 mmol) and then sparged with argon for 5 minutes. Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis-(triphenylρhosρhine)palladium(II) (37.0 mg, 0.05 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound (150.0 mg, 83%) was isolated by chromatography (0 - 3% EtOAc - hexanes) as a pale-yellow oil. Η NMR (CDC13) δ: 7.21 (3H, m), 7.09 - 7.01 (6H, m), 4.18 (2H, s), 1.07 (2H, m), 0.79 (2H, m), 0.02 (9H, s). 1 -Ethyny l-4-( 1 -benzy loxycy clopropy l)-benzene (Intermediate 71) Using General Procedure E; [4-(l -benzy loxy cyclopropy 1)- ρhenylethynyl]-trimethylsilane (Intermediate 70, 150.0 mg, 0.47 mmols) in methanol (6 mL) was treated with potassium carbonate (100.0 mg, 0.72 mmol) and stirred overnight at ambient temperature. The crude alkyne (115 mg, 100%>) was used directly in the next reaction. 'H NMR (CDCI3) δ: 7.67 - 7.50 (2H, d, J = 8.2 Hz), 7.34 - 7.26 (7H, m), 4.43 (2H, s), 3.07 (IH, s), 1.32 (2H, m), 1.04 (2H, m). Ethyl 4-[4-( 1 -benzyloxycy clopropyl)-phenylethynyl]-benzoate (Compound 75, General Formula 2) Using General Procedure F ; 1 -ethyny l-4-( 1 -benzy loxy cyclopropy 1)- benzene (Intermediate 71, 60.0 mg, 0.24 mmol) and ethyl-4-iodo benzoate (Reagent A, 72.0 mg, 0.26 mmol) in triethylamine (4 mL) was treated with copper(I)iodide (17.0 mg, 0.09 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (61 mg, 0.09 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc - hexanes) afforded 85.0 mg (91%) of the title compound as an orange oil. 'H NMR (CDC13) δ: 8.03 (2H, d, J = 8.2 Hz), 7.62-7.54 (4H, m), 7.39-7.26 (7H, m), 4.47 (2H, s), 4.40 (2H, q, J = 7.1 Hz), 1.42 (3H, t, J = 7.1 Hz), 1.36 (2H, m), 1.07 (2H, m). Methyπ4-r4-d -benzyloxycvcloρropy1)-phenylethvnyl]-ρhenvU-acetate (Compound 76, General Formula 2) Using General Procedure F; 1 -ethyny l-4-(l -benzy loxy cyclopropy 1)- benzene (Intermediate 71, 60.0 mg, 0.20 mmol) and methyl-(4- iodophenyl)-acetate (Reagent B, 66.0 mg, 0.24 mmol) in triethylamine (5 mL) was treated with coρper(I)iodide (15.0 mg, 0.08 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylρhosphine)ρalladium(II) (56 mg, 0.08 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-7% EtOAc - hexanes) afforded 64.0 mg (81%) of the title compound as a yellow oil. 'H NMR (CDCI3) δ: 7.52-7.47 (4H, m), 7.37-7.25 (9H, m), 4.44 (2H, s), 3.70 (3H, s), 3.64 (2H, s), 1.32 (2H, m), 1.06 (2H, m). 4-[4-( 1 -Benzy loxy cy clopropy l)-phenylethynyl]-benzoic acid (Compound 77, General Formula 2) Using General Procedure I; a solution of ethyl 4-[4-( 1 - benzy loxy cy clopropy l)-ρhenylethynyl]-benzoate (Compound 75, 78.0 mg, 0.20 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (80.0 mg, 2.0 mmols, 2.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 65.0 mg (89%>) of the title compound as a solid. Η NMR (CDCI3) δ: 7.97 (2H, d, J = 8.5 Hz), 7.67 (2H, d, J - 8.7 Hz), 7.58 (2H, d, J = 8.5 Hz), 7.41-7.28 (7H, m), 4.44 (2H, s), 1.33 (2H, m), 1.12 (2H, m). (4-[4-(l-Benzyloxycvclopropyl)-phenv1ethvnyll-phenyll-acetic acid (Compound 78, General Formula 2) Using General Procedure I; a solution of methyl (4-[4-( 1 - benzyloxycyclopropyl)-ρhenylethynyl]-ρhenyl}-acetate (Compound 76, 45.0 mg, 0.11 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (80.0 mg, 2.0 mmols, 2.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 35.0 mg (81%) of the title compound as a pale-yellow solid. Η NMR (CDC13) δ: 7.49 (4H, m), 7.37-7.25 (9H, m), 4.44 (2H, s), 3.66 (2H, s), 1.32 (2H, m), 1.05 (2H, m). Benzyl 4-bromo-2-methylbenzoate (Intermediate 72) Using General Esterification Method C; 2-methyl-4-bromo-benzoic acid (2.15 g, 10.0 mmols) was refluxed for 3h with 10 mL SOCl2. The resulting solution concentrated under reduced pressure and the crude acyl chloride was combined with benzyl alcohol (1.08 g, lO.Ommols) and pyridine (1.6 mL, 20.0 mmols) to give the title compound (2.4 g, 80%) after work-up and column chromatography (2-5% EtOAc - hexanes) as a colorless oil. 'H NMR (CDCI3) δ: 7.81 (IH, d, J = 8.5 Hz), 7.41-7.33 (7H, m), 5.32 (2H, s), 2.57 (3H, s). 4-Bromo- 1 -( 1 -benzyloxyvinyl -2-methylbenzene (Intermediate 73) Using General Procedure 1; benzyl 4-bromo-2-methylbenzoate (Intermediate 72, 840.0 mg, 2.77 mmols) and 5.4 mL of Tebbe's Reagent (788.0 mg, 2.77 mmols) afforded 640.0 mg (76%) of the title compound after column chromatography (100%) hexanes). Η NMR (CDCl3) δ: 7.38-7.19 (8H, m), 4.88 (2H, s), 4.45 (IH, d, J = 2.6 Hz), 4.25 (2H, d, J = 2.6 Hz), 2.35 (3H, s). -Bromo-l-(l-benzyloxycvc1opropyl)-2-methyl-benzene (Intermediate 74) Using General Procedure 2; 4-bromo-l-(l-benzyloxyvinyl)-2-methyl- benzene (Intermediate 73, 400. 0 mg, 1.32 mmols), Et2Zn (325.0 mg, 2.63 mmols), and CH2I2 (704.0 mg, 2.63 mmols) in 4 mL E^O afforded 380.0 mg (90%) of the title compound as a colorless oil after chromatography (2-5%> EtOAc - hexanes). 'H NMR (CDC13) δ: 7.42-7.20 (8H, m), 4.31 (2H, s), 2.58 (3H, s), 1.25 (2H, m), 0.94 (2H, m). [4-(l-Benzyloxycvclopropyl)-3-methyl-ρhenylethvnyll-trimethylsilane (Intermediate 75) Using General Procedure D; 4-bromo- 1 -( 1 -benzy loxy cyclopropy l)-2- methyl-benzene (Intermediate 74, 320.0 mg, 1.00 mmol) in triethylamine (8 mL) was treated with coρper(I)iodide (19.0 mg, 0.1 mmol) and then sparged with argon for 5 minutes. Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis- (triρhenylphosphine)palladium(II) (70.0 mg, 0.05 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound (300.0 mg, 89%>) was isolated by chromatography (0 - 2%> EtOAc - hexanes). Η NMR (CDCI3) δ: 7.34-7.13 (8H, m), 4.24 (2H, s), 2.52 (3H, s), 1.20 (2H, m), 0.88 (2H, m), 0.25 (9H, s). 4-Ethvnyl- 1 -( 1 -benzyloxycvclopropyl)-2-methyl-benzene (Intermediate 76) Using General Procedure E; [4-(l -benzy loxy cyclopropy l)-3 -methy 1- phenylethynylj-trimethylsilane (Intermediate 75, 300.0 mg, 0.95 mmols) in methanol (6 mL) was treated with potassium carbonate (120.0 mg, 0.87 mmol) and stirred overnight at ambient temperature. The crude alkyne (185 mg, 79%) was used directly in the next reaction. 'H NMR (CDC13) δ: 7.37-7.16 (8H, m), 4.27 (2H, s), 3.07 (IH, s), 2.55 (3H, s), 1.21 (2H, m), 0.92 (2H, m). Ethyl 4-r4-(l-benzyloχycvcloρroρyl)-3-methyl-phenylethvnvn-benzoate (Compound 79, General Formula 2) Using General Procedure F; l-ethynyl-4-(l -benzy loxy cyclopropy l)-3- methyl-benzene (Intermediate 76, 90.0 mg, 0.34 mmol) and ethyl-4-iodo benzoate (Reagent A, 95.0 mg, 0.34 mmol) in triethylamine (6 mL) was treated with coρρer(I)iodide (23.0 mg, 0.12 mmol) and sparged with argon for 5 minutes. Dichlorobis(triρhenylphosphine)ρalladium(II) (80 mg, 0.11 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc - hexanes) afforded 68.0 mg (54%) of the title compound. 'H NMR (CDCI3) δ: 8.03 (2H, d, J = 8.2 Hz), 7.58 (2H, d, J = 8.2 Hz), 7.33-7.16 (8H, m), 4.39 (2H, q, J = 7.1 Hz), 4.29 (2H, s), 2.57 (3H, s), 1.40 (3H, t, J = 7.1 Hz), 1.22 (2H, m), 0.93 (2H, m). Methyl {4-[4-(l-benzyloxycyclopropyl)-3-methyl-phenylethynyl]-phenyl}- acetate (Compound 80, General Formula 2) Using General Procedure F; 1 -ethyny l-4-( 1 -benzyloxycy clopropy l)-3 - methyl-benzene (Intermediate 76, 90.0 mg, 0.34 mmol) and methyl-(4- iodoρhenyl)-acetate (Reagent B, 95.0 mg, 0.34 mmol) in triethylamine (5 mL) was treated with coρper(I)iodide (22.0 mg, 0.11 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylρhosρhine)palladium(II) (80 mg, 0.11 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc - hexanes) afforded 90.0 mg (71%) of the title compound as a pale-yellow oil. Η MR (CDC13) δ: 7.49 (2H, d, J = 8.2 Hz), 7.32-7.16 (10H, m), 4.28 (2H, s), 3.70 (3H, s), 3.64 (2H, s), 2.56 (3H, s), 1.22 (2H, m), 0.92 (2H, m). 4-[4-(l-Benzyloxycvcloρropyl)-3-methyl-phenv1ethynyn-benzoic acid (Compound 81, General Formula 2) Using General Procedure I; a solution of ethyl 4-[4-( 1 - benzyloxycycloρroρyl)-3-methyl-ρhenylethynyl]-benzoate (Compound 79, 68.0 mg, 0.17 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (360.0 mg, 9.0 mmols, 3.0 mL of a 3N aqueous solution) and stirred overnight at room temperature. Work-up afforded 48.0 mg (16%) of the title compound as a solid. 'H NMR (CDC13) δ: 8.10 (2H, d, J = 8.1 Hz), 7.63 (2H, d, J = 8.1 Hz), 7.44- 7.16 (8H, m), 4.29 (2H, m), 2.58 (3H, s), 1.24 (2H, m), 0.94 (2H, m). {4-[4-(l-Benzyloxycyclopropyl)-3-methyl-phenylethynyl]-phenyl}-acetic acid (Compound 82, General Formula 2) Using General Procedure I; a solution of methyl {4-[4-(l- benzyloxycyclopropyl)-3-methyl-phenylethynyl]-phenyl}-acetate (Compound 80, 75.0 mg, 0.18 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 30.0 mg (40%>) of the title compound. 'H NMR (CDCl3) δ: 7.51 (2H, d, J = 8.2 Hz), 7.42 (IH, s), 7.33-7.17 (9H, m), 4.36 (2H, s), 3.67 (2H, s), 2.57 (3H, s), 1.23 (2H, m), 0.94 (2H, m). Isopropyl 3 -methy 1-4-bromobenzoate (Intermediate 77) Using General Esterification Procedure A; 4-bromo-2-methylbenzoic acid (1.6 g, 7.4 mmols) was combined with isopropyl alcohol to give 1.5 g (79%>) of the title compound as a colorless oil. 'H NMR (CDCI3) δ: 7.76 (IH, d, J = 8.2 Hz), 7.40 (IH, d, J = 7.4 Hz), 7.37 (IH, dd, J = 1.4, 8.2 Hz), 5.23 (IH, septet, J = 6.2 Hz), 2.57 (3H, s), 1.37 (6H, d, J = 6.2 Hz). 4-Bromo-l-(l-isopropoxyvinylV2-methyl-benzene (Intermediate 78) Using General Procedure 1 ; isopropyl 2-methy 1-4-bromobenzoate (Intermediate 77, 800.0 mg, 3.11 mmols) and 6.2 mL of Tebbe's Reagent (885.2 mg, 3.11 mmols) afforded 595.0 mg (75%) of the title compound as a colorless oil after column chromatography (100%) hexanes). 'H NMR (CDC13) δ: 7.31-7.25 (2H, m), 7.16 (IH, d, J = 8.2 Hz), 4.34 (IH, septet, J = 6.0 Hz), 4.31 (IH, d, J = 2.1 Hz), 4.18 (IH, d, J - 2.1 Hz), 2.33 (3H, s), 1.31 (6H, d, J = 6.0 Hz). 4-Bromo- 1 -( 1 -isopropoxy cyclopropy lV2-methy 1-benzene (Intermediate 79) Using General Procedure 2 ; 4-bromo- 1 -( 1 -isopropoxy viny l)-2- methyl-benzene (Intermediate 78, 389. 0 mg, 1.53 mmols), Et2Zn (376.6 mg, 3.05 mmols), and CH2I2 (817.0 mg, 3.05 mmols) in 3.0 mL Et20 afforded 340.0 mg (84%) of the title compound as a colorless oil after chromatography (3 % EtOAc - hexanes) . 'H NMR (CDCI3) δ: 7.33 (IH, d, J = 2.3 Hz), 7.24 (IH, dd, J = 2.3, 8.2 Hz), 7.13 (IH, d, J = 8.2 Hz), 3.57 (IH, septet, J = 6.1 Hz), 2.49 (3H, s), 1.00 (2H, m), 0.97 (6H, d, J = 6.1 Hz), 0.82 (2H, m). r4-(l-Isopropoxycycloproρyl)-3-methyl-phenylethynyll-trimethylsilane (Intermediate 80) Using General Procedure D; 4-bromo- 1 -( 1 -isopropoxy cyclopropy 1)- 2-methyl-benzene (Intermediate 79, 250.0 mg, 0.95 mmol) in triethylamine (8 mL) was treated with copρer(I)iodide (19.0 mg, 0.10 mmol) and then sparged with argon for 5 minutes. Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis- (triphenylphosρhine)ρalladium(II) (70.0 mg, 0.1 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound (250.0 mg, 91%) was isolated by chromatography (0 - 3% EtOAc - hexanes). 'H MR (CDC13) δ: 7.32-7.17 (3H, m), 3.56 (IH, septet, J = 6.2 Hz), 2.48 (3H, s), 1.00 (2H, m), 0.95 (6H, d, J = 6.2 Hz), 0.83 (2H, m), 0.24 (9H, s). 4-Ethvny 1- 1 -( 1 -isopropoxycv clopropy l)-2-methy 1-benzene (Intermediate 81) Using General Procedure E; [4-(l-isopropoxycyclopropyl)-3-methyl- phenylethynyl]-trimethylsilane (Intermediate 80, 250.0 mg, 0.87 mmol) in methanol (10 mL) was treated with potassium carbonate (100.0 mg, 0.72 mmol) and stirred overnight at ambient temperature. The crude alkyne (180 mg, 98%o) was used directly in the next reaction. 'H NMR (CDCI3) δ: 7.32 (IH, s), 7.23 (2H, m), 3.57 (IH, septet, J = 6.2 Hz), 3.05 (IH, s), 2.50 (3H, s), 1.11 (2H, m), 0.96 (6H, d, J = 6.2 Hz), 0.83 (2H, m). Ethyl 4-[4-(l-isopropoxycyclopropyl)-3-methyl-phenylethynyl]-benzoate (Compound 83, General Formula 2) Using General Procedure F ; 4-ethyny 1- 1 -( 1 -isopropoxy cyclopropy 1)- 3 -methyl-benzene (Intermediate 81, 80.0 mg, 0.13 mmol) and ethyl-4-iodo benzoate (Reagent A, 100.0 mg, 0.36 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (25.0 mg, 0.13 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)-palladium(II) (91 mg, 0.13 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc - hexanes) afforded 75.0 mg (56%) of the title compound as an orange solid. Η NMR (CDC13) δ: 8.02 (2H, d, J = 8.2 Hz), 7.57 (2H, d, J = 8.2 Hz), 7.39 (IH, s), 7.29-7.20 (2H, m), 4.39 (2H, q, J = 7.1 Hz), 3.60 (IH, septet, J = 6.2 Hz), 1.40 (3H, t, J = 7.1 Hz), 1.13 (2H, m), 0.97 (6H, d, J = 6.2 Hz), 0.87 (2H, m). Methyπ4-[4-(l-isopropoxycvcloρropy1)-3-methyl-phenylethynyl]-ρheiryriI acetate (Compound 84, General Formula 2) Using General Procedure F; 1 -ethyny l-4-(l -isopropoxy cyclopropy 1)- 3-methyl-benzene (Intermediate 81, 100.0 mg, 0.47 mmol) and methyl-(4- iodoρhenyl)-acetate (Reagent B, 129.0 mg, 0.45 mmol) in triethylamine (6 mL) was treated with coρρer(I)iodide (30.0 mg, 0.16 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylρhosphine)ρalladium(II) (110 mg, 0.16 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc - hexanes) afforded 120.0 mg (71 %>) of the title compound. 'H NMR (CDC13) δ: 7.48 (2H, d, J = 8.5 Hz), 7.36 (IH, s), 7.29-7.22 (4H, m), 3.70 (3H, s), 3.63 (2H, s), 3.60 (IH, septet, J = 6.2 Hz), 2.52 (3H, s), 1.09 (2H, m), 0.97 (6H, d, J = 6.2 Hz), 0.86 (2H, m). 4-[4-(l-Isopropoxycyclopropyl)-3-methyl-phenylethynyl]-benzoic acid (Compound 85, General Formula 2) Using General Procedure I; a solution of ethyl 4-[4-( 1 - isopropoxy cyclopropyl)-3-methyl-phenylethynyl]-benzoate (Compound 83, 60.0 mg, 0.17 mmol) in ethanol (2 mL) and tetrahydrofuran (2 mL) was treated with NaOH (80.0 mg, 2.0 mmols, 2.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 38.0 mg (69%) of the title compound as a colorless solid. Η NMR (d6-acetone) δ: 8.06 (2H, d, J = 8.5 Hz), 7.66 (2H, d, J = 8.5 Hz), 7.42 (IH, s), 7.35 (2H, m), 3.59 (IH, septet, J = 6.2 Hz), 2.52 (3H, s), 1.07 (2H, m), 0.93 (6H, d, J = 6.2 Hz), 0.88 (2H, m). { 4- \4-( 1 -Isopropoxycy clopropy l)-3 -methyl-pheny lethvnyl] -phenyll-acetic acid (Compound 86, General Formula 2) Using General Procedure I; a solution of methyl {4-[4-(l- isoρropoxycycloρropyl)-3-methyl-ρhenylethynyl]-ρhenyl}-acetate (Compound 84, 100.0 mg, 0.28 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 60.0 mg (62%) of the title compound as a colorless solid. 'H NMR (CDC13) δ: 7.48 (2H, d, J = 7.6 Hz), 7.36 (IH, s), 7.25 (4H, m), 3.65 (2H, s), 3.60 (IH, septet, J = 6.2 Hz), 2.51 (3H, s), 1.12 (2H, m), 0.97 (6H, d, J = 6.2 Hz), 0.86 (2H, m). 2.2-Dimethylproρyl 2-methyl-4-bromobenzoate (Intermediate 82) Using General Esterification Method C ; 2-methy 1-4-bromo-benzoic acid (1.82 g, 8.47 mmols) was refluxed for 3h with 10 mL SOCl2. The resulting solution was concentrated under reduced pressure and the crude acyl chloride combined with 2,2-dimethylpropanol (0.75 g, 8.47 mmols) and pyridine (1.4 mL, 16.9 mmols) to give the title compound (1.64 g, 68%>) after work-up and column chromatography (2-5% EtOAc - hexanes) as a colorless oil. Η NMR (CDC13) δ: 7.81 (IH, d, J = 8.2 Hz), 7.42 (IH, d, J = 2.0 Hz), 7.39 (IH, dd, J = 2.0, 8.2 Hz), 3.99 (2H, s), 2.60 (3H, s), 1.03 (9H, s). 4-Bromo- 1 -[ 1 -(2.2-dimethylpropyloxy)-vinyl]-2-methy 1-benzene (Intermediate 83) Using General Procedure 1 ; 2,2-dimethylpropyl 2-methy 1-4- bromobenzoate (Intermediate 82, 820.0 mg, 2.87 mmols) and 5.8 mL of Tebbe's Reagent (817.0 mg, 2.87 mmols) afforded 800.0 mg (98%) of the title compound as a colorless oil after column chromatography (100% hexanes). Η NMR (CDC13) δ: 7.32 (IH, d, J = 2.0 Hz), 7.28 (IH, dd, J = 2.0, 8.2 Hz), 7.18 (IH, d, J = 8.2 Hz), 4.27 (IH, d, J = 2.1 Hz), 4.10 (IH, d, J = 2.1 Hz), 3.43 (2H, s), 2.33 (3H, s), 0.98 (9H, s). 4-Bromo-l-ri-(2.2-dimethylpiOPyloχy)-cycloρroρyl]-2-methyl-benzene (Intermediate 84) Using General Procedure 2; 4-bromo- l-[l-(2,2-dimethy lpropy loxy )- cyclopropyl]-2-methyl-benzene (Intermediate 83, 400. 0 mg, 1.43 mmols), Et2Zn (353.2 mg, 2.86 mmols), and CH2I2 (760.0 mg, 2.86 mmols) in 3.0 mL Et^O afforded 370.0 mg (87%o) of the title compound as a colorless oil after chromatography (3% EtOAc - hexanes). 'H NMR (CDC13) δ: 7.36 (IH, s),7.27 (IH, d, J = 8.5 Hz), 7.09 (IH, d, J = 7.9 Hz), 2.86 (2H, s), 2.52 (3H, s), 1.08 (2H, m), 0.83 (2H, m), 0.80 (9H, s). [4-[l-[l-(2.2-Dimethylproρyloχy)-cvclopropyl]-3-methyl-phenylethvnyll1- trimethylsilane (Intermediate 84a) Using General Procedure D; 4-bromo-l-[l-(2,2-dimethylpropyloxy)- cycloproρyl]-2-methyl-benzene (Intermediate 84, 255.0 mg, 0.86 mmol) in triethylamine (8 mL) was treated with copper(I)iodide (17.0 mg, 0.09 mmol) and then sparged with argon for 5 minutes. Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis- (triphenylphosphine)palladium(II) (63.0 mg, 0.09 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound (220.0 mg, 81 %>) was isolated by chromatography ( 1 -2%> EtOAc - hexanes) . 'H NMR (CDCI3) δ: 7.30 (IH, s), 7.21 (IH, d, J = 7.6 Hz), 7.12 (IH, d, J = 8.6 Hz), 2.80 (2H, s), 2.47 (3H, s), 1.05 (2H, m), 0.82 (2H, m), 0.75 (9H, s), 0.24 (9H, s). 4-Ethvnyl-l-[l-(2.2-dimethylpropyloxy)-cvclopropyl]-2-methyl-benzene (Intermediate 85) Using General Procedure E; [4-[l-[l-(2,2-dimethylproρyloxy)- cyclopropyl]]-3-methyl-phenylethynyl]-trimethylsilane (Intermediate 84a, 220.0 mg, 0.83 mmol) in methanol (10 mL) was treated with potassium carbonate (80.0 mg, 0.58 mmol) and stirred overnight at ambient temperature. The crude alkyne (155 mg, 76%o) was used directly in the next reaction. 'H NMR (CDCl3) δ: 7.32 (lH, s), 7.24 (lH, d, J = 7.1 Hz), 7.15 (lH, d, J = 7.1 Hz), 3.04 (IH, s), 2.83 (2H, s), 2.49 (3H, s), 1.06 (2H, m), 0.83 (2H, m), 0.76 (9H, s). Ethyl 4-[4-[l-(2.2-dimethylρropyloxy)-cycloρropyl]-3-methyl- phenylethvnyll-benzoate (Compound 87, General Formula 2) Using General Procedure F ; 4-ethynyl- 1 -[1 -(2,2-dimethy lpropy loxy )- cyclopropyl]-3-methyl-benzene (Intermediate 85, 75.0 mg, 0.31 mmol) and ethyl-4-iodo benzoate (Reagent A, 86.0 mg, 0.31 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (21.0 mg, 0.11 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)-palladium(II) (78 mg, 0.11 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4%o EtOAc - hexanes) afforded 60.0 mg (50%) of the title compound as an orange solid. Η NMR (CDC13) δ: 8.02 (2H, d, J = 8.4 Hz), 7.56 (2H, d, J = 8.4 Hz), 7.38 (IH, s), 7.30 (IH, dd, J = 1.1, 8.0 Hz), 7.20 (IH, d, J = 8.0 Hz), 4.38 (2H, q, J = 7.1 Hz), 2.84 (2H, s), 2.52 (3H, s), 1.40 (3H, t, J = 7.1 Hz), 1.07 (2H, m), 0.84 (2H, m), 0.77 (9H, s). Methyl (4-[4-ri-(2.2-dimethylpropyloxy)-cvclopropyl]-3-methyl- phenv lethynyl] -phenyl) -acetate (Compound 88, General Formula 2) Using General Procedure F; 4-ethynyl- l-[l-(2,2-dimethylpropyloxy)- cyclopropyl]-3 -methyl-benzene (Intermediate 85, 75.0 mg, 0.31 mmol) and methyl-(4-iodophenyl)-acetate (Reagent B, 86.0 mg, 0.31 mmol) in triethylamine (6 mL) was treated with copper(I)iodide (21.0 mg, 0.11 mmol) and sparged with argon for 5 minutes. Dichlorobis(triρhenylphosphine)ρalladium(II) (78 mg, 0.11 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc - hexanes) afforded 100.0 mg (83%) of the title compound. 'H NMR (CDC13) δ: 7.48 (2H, d, J = 7.9 Hz), 7.36-7.24 (4H, m), 7.18 (IH, d, J = 7.9 Hz), 3.70 (3H, s), 3.63 (2H, s), 2.84 (2H, s), 2.51 (3H, s), 1.07 (2H, m), 0.83 (2H, m), 0.77 (9H, s). 4-[4-[l-(2.2-Dimethylρropyloxy)-cvcloρropyl]-3-methyl-phenylethynyl]- benzoic acid (Compound 89, General Formula 2) Using General Procedure I; a solution of ethyl 4-[4-[l-(2,2- dimethylpropyloxy)-cyclopropyl]-3-methyl-phenylethynyl]-benzoate (Compound 87, 60.0 mg, 0.15 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH ( 120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 24.0 mg (43%>) of the title compound as a colorless solid. Η NMR (CDCI3) δ: 8.06 (2H, d, J = 7.9 Hz), 7.65 (2H, d, J = 7.9 Hz), 7.42 (IH, s), 7.33 (2H, m), 2.89 (2H, s), 2.53 (3H, s), 1.07 (2H, m), 0.90 (2H, m), 0.77 (9H, s). {4-[4-[l-(2.2-Dimethylpropyloxy)-cyclopropyl]-3-methyl-phenylethvnyl]- phenyl} -acetic acid (Compound 90, General Formula 2) Using General Procedure I; a solution of methyl {4-[4-[l-(2,2- dimethylpropyloxy)-cycloρroρyl]-3-methyl-phenylethynyl]-ρhenyl}-acetate (Compound 88, 95.0 mg, 0.24 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 49.0 mg (53%) of the title compound as a colorless solid. 'H NMR (CDCI3) δ: 7.49 (2H, d, J = 8.2 Hz), 7.36 (IH, s), 7.27 (3H, m), 7.18 (IH, d, J = 7.9 Hz), 3.66 (2H, s), 2.84 (2H, s), 2.51 (3H, s), 1.07 (2H, m), 0.83 (2H, m), 0.77 (9H, s). Benzyl 4-bromo-2-ethyl-benzoate (Intermediate 86) Using General Esterification Method B; 4-bromo-2-ethyl-benzoic acid (0.98 g, 4.25 mmols), benzyl bromide (0.80 g, 4.68 mmols), and K2C03 (0.64 g, 4.68 mmols) afforded 1.0 g (74%) of the title compound after column chromatography (0-3%) EtOAc - hexanes). 'H NMR (CDC13) δ: 7.76 (IH, d, J = 8.5 Hz), 7.41-7.33 (7H, m), 5.32 (2H, s), 2.95 (2H, q, J = 7.6 Hz), 1.20 (3H, t, J = 7.6 Hz). 4-Bromo- 1 -( 1 -benzy loxy viny l)-2-ethy 1-benzene (Intermediate 87) Using General Procedure 1; benzyl 4-bromo-2-ethylbenzoate (Intermediate 86, 1.20 g, 3.78 mmols) and 7.6 mL of Tebbe's Reagent (1.08 g, 3.78 mmols) afforded 800.0 mg (66%) of the title compound after column chromatography ( 100% hexanes). Η NMR (CDCI3) δ: 7.37-7.17 (8H, m), 4.88 (2H, s), 4.43 (IH, d, J = 2.1 Hz), 4.25 (IH, d, J = 2.1 Hz), 2.71 (2H, q, J = 7.6 Hz), 1.18 (3H, t, J - 7.6 Hz). 4-Bromo- 1 -( 1 -benzyloxy cvclopropyl)-2-ethyl-benzene (Intermediate 88) Using General Procedure 2; 4-bromo- 1-(1 -benzy loxy viny l)-2-ethyl- benzene (Intermediate 87, 330. 0 mg, 1.04 mmols), E^Zn (257.0 mg, 2.08 mmols), and CH2I2 (557.0 mg, 2.08 mmols) in 4 mL E afforded 241.0 mg (70%)) of the title compound as a colorless oil after chromatography (2-5% EtOAc - hexanes). !H NMR (CDCI3) δ: 7.43-7.15 (8H, m), 4.27 (2H, s), 3.00 (2H, q, J = 7.6 Hz), 1.29-1.21 (5H, m), 0.90 (2H, m). [4-(l-Benzyloxycyclopropyl)-3-ethyl-phenylethynyl1-trimethylsilane (Intermediate 89) Using General Procedure D; 4-bromo- 1-(1 -benzy loxy cyclopropy l)-2- ethyl-benzene (Intermediate 88, 220.0 mg, 0.66 mmol) in triethylamine (8 mL) was treated with copper(I)iodide (14.0 mg, 0.07 mmol) and then sparged with argon for 5 minutes. Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis- (triphenylphosphine)palladium(II) (50.0 mg, 0.07 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound was isolated by chromatography (0 - 2% EtOAc - hexanes). Η NMR (CDC13) δ: 7.41-7.13 (8H, m), 4.24 (2H, s), 2.98 (2H, q, J = 7.6 Hz), 1.25 (3H, t, J = 7.6 Hz), 1.20 (2H, m), 0.90 (2H, m), 0.26 (9H, s). 4-Ethvnyl- 1 -( 1 -benzy loxy cvclopropyD-2-ethyl-benzene (Intermediate 90) Using General Procedure E; [4-( 1 -benzy loxy cyclopropy l)-3 -ethyl- phenylethynyl]-trimethy lsilane (Intermediate 89, 240 mg, 0.69 mmol) in methanol (6 mL) was treated with potassium carbonate (10.0 mg, 0.72 mmol) and stirred overnight at ambient temperature. The crude alkyne (190 mg, 99%) was used directly in the next reaction. Η NMR (CDC13) δ: 7.43- 7.15 (8H, m), 4.27 (2H, s), 3.08 (IH, s), 3.01 (2H, q, J = 7.6 Hz), 1.26 (3H, t, J - 7.6 Hz), 1.22 (2H, m), 0.92 (2H, m). Ethyl 4- [4-( 1 -benzy loxy cyclopropy l)-3 -ethy 1-pheny lethyny 1] -benzoate (Compound 91, General Formula 2) Using General Procedure F ; 1 -ethyny l-4-( 1 -benzy loxy cyclopropy l)-3 - ethyl-benzene (Intermediate 90, 90.0 mg, 0.33 mmol) and ethyl-4-iodo benzoate (Reagent A, 100.0 mg, 0.36 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (21.0 mg, 0.11 mmol) and sparged with argon for 5 minutes. Dichlorobis(triρhenylphosphine)ρalladium(II) (77 mg, 0.11 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc - hexanes) afforded 100.0 mg (72%) of the title compound. 'H NMR (CDC13) δ: 8.03 (2H, d, J = 7.9 Hz), 7.59 (2H, d, J = 7.9 Hz), 7.49 (IH, s), 7.36-7.16 (7H, m), 4.38 (2H, q, J = 7.1 Hz), 4.28 (2H, s), 3.04 (2H, q, J = 7.6 Hz), 1.40 (3H, t, J = 7.1 Hz), 1.29 (3H, t, J = 7.6 Hz), 1.23 (2H, m), 0.94 (2H, m). Methyπ4-[4-(l-benzyloxycvcloproρyl)-3-ethyl-phenylethvnyl]-phenv - acetate (Compound 92, General Formula 2) Using General Procedure F ; 1 -ethyny l-4-( 1 -benzy loxy c clopropy l)-3 - ethyl-benzene (Intermediate 90, 107.0 mg, 0.39 mmol) and methyl-(4- iodophenyl)-acetate (Reagent B, 110.0 mg, 0.39 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (25.0 mg, 0.13 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (91 mg, 0.13 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4%o EtOAc - hexanes) afforded 130.0 mg (79%) of the title compound as a pale-yellow oil. 'H NMR (CDCI3) δ: 7.49 (3H, m), 7.32-7.16 (9H, m), 4.28 (2H, s), 3.71 (3H, s), 3.64 (2H, s), 3.03 (2H, q, J = 7.6 Hz), 1.32-1.23 (5H, m), 0.94 (2H, m). 4-[4-(l-Benzyloxycyclopropyl -3-ethyl-phenylethynyl]-benzoic acid (Compound 93, General Formula 2) Using General Procedure I; a solution of ethyl 4-[4-( 1 - benzyloxycycloρropyl)-3-ethyl-phenylethynyl]-benzoate (Compound 91, 100.0 mg, 0.24 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH ( 120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up and purification by HPLC (Partisil 10-pac, 10% H20/CH3CN) afforded the title compound as a colorless solid. 'H NMR (CDC13) δ: 8.10 (2H, d, J = 8.5 Hz), 7.64 (2H, d, J = 8.5 Hz), 7.50 (IH, s), 7.35-7.16 (7H, m), 4.29 (2H, s), 3.04 (2H, q, J = 7.6 Hz), 1.30 (3H, t, J = 7.6 Hz), 1.25 (2H, ), 0.95 (2H, m). {4-[4-(l-Benzyloxycvcloρropyl)-3-ethyl-phenylethvnyl]-phenyl>-acetic acid (Compound 94, General Formula 2) Using General Procedure I; a solution of methyl {4-[4-(l- benzyloxycycloρropyl)-3-ethyl-ρhenylethynyl]-phenyl}-acetate (Compound 92, 130.0 mg, 0.31 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH ( 120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up and purification by HPLC (Partisil 10-pac, 10% H20/CH3CN) afforded the title compound. 'H NMR (CDCI3) δ: 7.49 (3H, m), 7.31-7.16 (9H, m), 4.28 (2H, s), 3.66 (2H, s), 3.02 (2H, q, J = 7.6 Hz), 1.29 (3H, t, J = 7.6 Hz), 1.23 (2H, m), 0.94 (2H, m). Isopropyl 2-ethyl-4-bromobenzoate (Intermediate 91) Using General Esterification Procedure A; 4-bromo-2-ethyl-benzoic acid (2.25 g, 9.9 mmols) was combined with isopropyl alcohol to give the title compound as a colorless oil after column chromatography (2% EtOAc- hexanes). 'H NMR (CDCI3) δ: 7.69 (IH, d, J = 8.5 Hz), 7.41 (IH, s), 7.36 (IH, d, J = 8.5 Hz), 5.23 (IH, septet, J = 6.2 Hz), 2.95 (2H, q, J = 7.6 Hz), 1.37 (6H, d, J = 6.2 Hz), 1.23 (3H, t J = 7.6 Hz). 4-Bromo- 1 -( 1 -isoproρoxyvinylV2-ethy 1-benzene (Intermediate 92) Using General Procedure 1 ; isopropyl 2-ethyl-4-bromobenzoate (Intermediate 91, 1.21 g, 4.46 mmols) and 8.9 mL of Tebbe's Reagent (1.27 g, 4.46 mmols) afforded 570.0 mg (75%) of the title compound after column chromatography (100% hexanes). Η NMR (CDC13) δ: 7.36 (IH, d, J = 2.0 Hz), 7.28 (IH, dd, J = 2.0, 8.0 Hz), 7.17 (IH, d, J = 8.0 Hz), 4.39 (IH, septet, J = 6.2 Hz), 4.31 (IH, d, J = 2.1 Hz), 4.26 (IH, d, J = 2.1 Hz), 2.73 (2H, q, J = 7.6 Hz), 1.35 (6H, d, J = 6.2 Hz), 1.24 (3H, t, J = 7.6 Hz). 4-Bromo-l-(l-isoρropoxycycloρroρyl)-2-ethyl-benzene (Intermediate 93) Using General Procedure 2; 4-bromo-l-(l-isoρroρoxyvinyl)-2-ethyl- benzene (Intermediate 92, 570. 0 mg, 2.11 mmols), Et2Zn (521.0 mg, 4.22 mmols), and CH2I2 (1.13 g, 4.22 mmols) in 7.0 mL E afforded 500.0 mg (85%o) of the title compound as a colorless oil after chromatography (3% EtOAc - hexanes) . Η NMR (CDC13) δ: 7.39 (IH, d, J = 2.1 Hz), 7.25 (IH, dd, J = 2.1, 8.1 Hz), 7.15 (IH, d, J = 8.1 Hz), 3.59 (IH, septet, J = 6.2 Hz), 2.97 (2H, q, J = 7.6 Hz), 1.27 (3H, t, J = 7.6 Hz), 1.11 (2H, m), 0.97 (6H, d, J = 6.2 Hz), 0.83 (2H, m). 4-(l-Isopropoxycycloproρyl)-3-ethyl-ρhenylethvnyl]-trimethylsilane (Intermediate 94) Using General Procedure D ; 4-bromo- 1 -( 1 -isopropoxy cy clopropy 1)- 2-ethyl-benzene (Intermediate 93, 300.0 mg, 1.07 mmol) in triethylamine (8 mL) was treated with coρper(I)iodide (20.0 mg, 0.11 mmol) and then sparged with argon for 5 minutes. Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis- (triρhenylphosphine)palladium(II) (75.0 mg, 0.11 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound (320.0 mg, 99%) was isolated by chromatography (0 - 2% EtOAc - hexanes) as an orange oil. Η NMR (CDCI3) δ: 7.37-7.21 (3H, m), 3.56 (IH, septet, J - 6.2 Hz), 2.96 (2H, q, J = 7.6 Hz), 1.27 (3H, t, J = 7.6 Hz), 1.10 (2H, m), 0.94 (6H, d, J = 6.2 Hz), 0.84 (2H, m), 0.25 (9H, s). 4-Ethvnv 1- 1 -( 1 -isopropoxycy clopropyl)-2-ethyl-benzene (Intermediate 95) Using General Procedure E; [4-(l -isopropoxy cyclopropy l)-3-ethyl- phenylethynyl]-trimethylsilane (Intermediate 94, 330.0 mg, 1.10 mmols) in methanol (10 mL) was treated with potassium carbonate (150.0 mg, 1.10 mmol) and stirred overnight at ambient temperature. The crude alkyne (238 mg, 95%) was used directly in the next reaction. 'H NMR (CDC13) δ: 7.40-7.22 (3H, m), 3.59 (IH, septet, J = 6.2 Hz), 3.07 (IH, s), 2.97 (2H, q, J = 7.6 Hz), 1.28 (3H, t, J = 7.6 Hz), 1.12 (2H, m), 0.96 (6H, d, J = 6.2 Hz), 0.85 (2H, m). Ethyl 4- [4-( 1 -isopropoxy cyclopropy l)-3 -ethy 1-pheny lethyny 1] -benzoate (Compound 95, General Formula 2) Using General Procedure F ; 4-ethynyl- 1 -( 1 -isopropoxy cyclopropy 1)- 3 -ethyl-benzene (Intermediate 95, 108.0 mg, 0.47 mmol) and ethyl-4-iodo benzoate (Reagent A, 130.0 mg, 047 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (30.0 mg, 0.16 mmol) and sparged with argon for 5 minutes . Dichlorobis(triρheny lρhosphine)-palladium(II) (110 mg, 0.16 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc - hexanes) afforded 125.0 mg (71%) of the title compound as an oil. Η NMR (CDCI3) δ: 8.02 (2H, d, J = 8.2 Hz), 7.59 (2H, d, J = 8.2 Hz), 7.46 (IH, s), 7.33-7.26 (2H, m), 4.39 (2H, q, J = 7.1 Hz), 3.62 (IH, septet, J = 6.2 Hz), 3.01 (2H, q, J = 7.6 Hz), 1.41 (3H, t, J = 7.1 Hz), 1.31 (3H, t, J = 7.1 Hz), 1.14 (2H, m), 0.97 (6H, d, J = 6.2 Hz), 0.88 (2H, m). Methyl l4-[4-(l-isopropoxycvcloρropyl)-3-ethyl-phenylethvnyl]-phenv - acetate (Compound 96, General Formula 2) Using General Procedure F; 1 -ethyny l-4-(l -isopropoxy cyclopropyl)- 3-ethyl-benzene (Intermediate 95, 130.0 mg, 0.57 mmol) and methyl-(4- iodophenyl)-acetate (Reagent B, 157.0 mg, 0.57 mmol) in triethylamine (5 mL) was treated with copρer(I)iodide (36.0 mg, 0.19 mmol) and sparged with argon for 5 minutes. Dichlorobis(triρhenylρhosρhine)ρalladium(II) ( 133 mg, 0.19 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-5% EtOAc - hexanes) afforded 150.0 mg (70%) of the title compound as an orange oil. 'H NMR (CDC13) δ: 7.50-7.44 (3H, m), 7.27 (4H, m), 3.70 (3H, s), 3.64 (2H, s), 3.62 (IH, septet, J = 6.2 Hz), 3.00 (2H, q, J = 7.6 Hz), 1.30 (3H, t, J = 7.6 Hz), 1.13 (2H, m), 0.97 (6H, d, J = 6.2 Hz), 0.87 (2H, m). 4-[4-(l-Isoρropoxycyclopropyl)-3-ethyl-phenylethynyl]-benzoic acid (Compound 97, General Formula 2) Using General Procedure I; a solution of ethyl 4- [4-( 1 - isopropoxycyclopropyl)-3-ethyl-phenylethynyl]-benzoate (Compound 95, 110.0 mg, 0.29 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up and isolation by HPLC (partisil 10-pac, 10% H20/CH3CN) afforded the title compound as a colorless solid. !H NMR (d6-acetone) δ: 8.06 (2H, d, J = 8.2 Hz), 7.67 (2H, d, J = 8.2 Hz), 7.49 (IH, s), 7.40-7.34 (2H, m), 3.61 (IH, septet, J = 6.2 Hz), 3.01 (2H, q, J - 7.6 Hz), 1.29 (3H, t, J = 7.6 Hz), 1.08 (2H, m), 0.93 (6H, d, J = 6.2 Hz), 0.88 (2H, m). {4-[4-(l-Isopropoxycyclopropyl)-3-ethyl-phenylethynyl]-phenyl}-acetic acid (Compound 98, General Formula 2) Using General Procedure I; a solution of methyl {4-[4-(l- isopropoxycyclopropyl)-3-ethyl-phenylethynyl]-phenyl}-acetate (Compound 96, 156.0 mg, 0.41 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up and isolation by HPLC (partisil 10-pac, 1 % H20/CH3CN) afforded 85.0 mg (57%) of the title compound. 'HNMR (CDC13) δ: 7.54-7.48 (3H, m), 7.34-7.27 (4H, m), 3.68 (2H, s), 3.66 (IH, septet, J = 6.2 Hz), 3.03 (2H, q, J = 7.6 Hz), 1.33 (2H, t, J = 7.6 Hz), 1.17 (2H, m), 1.01 (6H, d, J = 6.2 Hz), 0.90 (2H, m). (4-Bromo-3-isoproρyl-ρhenoxyVtriisoρropyl-silane (Intermediate 96) To a solution of 4-bromo-3-isoρropylρhenol (880.0 mg, 4.09 mmols) and imidazole (417.0 mg, 6.13 mmols) in 10 mL DMF was added chloro- triisopropylsilane (946.0 mg, 4.90 mmols). After stirring overnight at room temperature the solution was diluted with H20 and extracted with EtOAc. The combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. The title compound, 1.30 g (92%), was isolated by column chromatography (1-2%) EtOAc-hexanes) as a colorless oil. Η NMR (CDCI3) δ: 7.34 (IH, d, J = 8.5 Hz), 6.81 (IH, d, J = 2.9 Hz), 6.59 (IH, dd, J = 2.9, 8.5 Hz), 3.31 (IH, septet, J = 7.0 Hz), 1.33-1.21 (3H, m), 1.24 (6H, d, J = 7.0 Hz), 1.13 (18H, d, J = 7.0 Hz). Ethyl 2-isoproρyl-4-triisopropylsilanyloxy-benzoate (Intermediate 97) To a solution of (4-bromo-3-isopropyl-phenoxy)-triisoρropyl-silane (Intermediate 96, 1.3 g, 3.8 mmols) in 15 mL Et20 cooled to -78 °C was added 4.9 mL of fert-butyllithium in pentane (532.0 mg, 8.3 mmols; 1.7 M). After stirring for 30 minutes ethyl chloroformate (832.0 mg, 7.8 mmols) was added. The resulting solution was warmed to room temperature and quenched by the addition of saturated aqueous NH4C1. The mixture was extracted with EtOAc and the combined organic layers dried (MgS04) concentrated under reduced pressure and the residue chromatographed (4% EtOAc-hexanes) to give 1.09 g (85%) of the title compound as a colorless oil. 'H NMR (CDC13) δ: 7.72 (IH, d, J = 8.5 Hz), 6.87 (IH, d, J = 2.3 Hz), 6.69 (IH, dd, J = 2.3, 8.5 Hz), 3.88 (IH, septet; J = 7.1 Hz), 4.30 (2H, q, J = 7.1 Hz), 1.36 (3H, t, J = 7.1 Hz), 1.31-1.17 (9H, m), 1.09 (18H). [4-(l-Ethoxyvinyl)-3-isopropyl-ρhenoxy1-triisoproρyl-silane (Intermediate 98) Using General Procedure 1 ; ethyl 2-isopropy 1-4- triisopropylsilanyloxy-benzoate (Intermediate 97, 450.0 mg, 1.34 mmols) and 2.0 mL of Tebbe's Reagent (398.0 mg, 1.40 mmols) afforded the title compound after column chromatography (100% hexanes). Η NMR (CDC13) δ: 7.11 (IH, d, J = 8.2 Hz), 6.78 (IH, d, J = 2.3 Hz), 6.63 (IH, dd, J = 2.3, 8.2 Hz), 4.23 (IH, d, J = 1.7 Hz), 4.10 (IH, d, J = 1.7 Hz), 3.86 (2H, q, J = 7.0 Hz), 3.16 (IH, septet, J = 7.0 Hz), 1.35 (3H, t, J = 7.1 Hz), 1.28-1.19 (3H, m), 1.19 (6H, d, J = 7.0 Hz), 1.11 (18H). 4-( 1 -Ethoxy cvelopropyl -3 -isopropyl-phenoxy] -triisopropyl-silane (Intermediate 99) Using General Procedure 2; [4-(l -ethoxy viny l)-3-isopropyl- ρhenoxy]-triisopropyl-silane (Intermediate 98, 300. 0 mg, 0.83 mmols), Et,Zn (325.0 mg, 2.63 mmols), and CH2I2 (704.0 mg, 2.63 mmols) in 5.0 mL Eφ afforded 270.0 mg (86%>) of the title compound as a colorless oil after chromatography (0.5-2.5 % EtOAc - hexanes). Η NMR (CDCI3) : 7.06 (IH, d, J = 8.2 Hz), 6.81 (IH, d, J = 2.6 Hz), 6.59 (IH, dd, J = 2.6, 8.2 Hz), 3.76 (IH, septet, J = 7.0 Hz), 3.25 (2H, q, J = 7.0 Hz), 1.30-1.20 (3H, m), 1.19 (6H, d, J = 7.0 Hz), 1.15 (2H, m), 1.10 (18H), 1.02 (2H, t, J = 7.0 Hz), 0.82 (2H, m). 4-(l-Ethoχycyclopropyl)-3-isoproρyl-phenol (Intermediate 100) To a solution of [4-(l -ethoxy cyclopropy l)-3-isoρropy 1-ρhenoxy]- triisopropyl-silane (Intermediate 99, 360.0 mg, 0.96mmol) in 3 mL THF at 0 °C was added tetrabutylammonium fluoride (625.0 mg, 2.39 mmols, 2.4 L of a 1 M solution in THF). The solution was stirred at 0 °C for 30 minutes and then quenched by the addition of H20. The mixture was extracted with EtOAc and the combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. The title compound (180 mg, 86%>) was isolated from the residue by column chromatography (4-10%) EtOAc- hexanes) as a colorless solid. Η NMR (CDC13) δ: 7.13 (IH, d, J = 8.2 Hz), 6.79 (IH, d, J - 2.6 H), 6.57 (IH, dd, J = 2.6, 8.2 Hz), 5.48 (IH, s), 3.79 (IH, septet, J = 7.0 Hz), 3.32 (2H, q, J= 7.0 Hz), 1.21 (6H, d, J = 7.0 Hz), 1.12 (2H, m), 1.05 (3H, t, J = 7.0 Hz), 0.84 (2H, m). 4-( 1 -Ethoxy cvclopropyl)-3 -isopropyl-phenyl 1.1.1 -trifluoromethansulfonate (Intermediate 101) A solution of 4-( 1 -ethoxy cy clopropy l)-3-isopropyl-phenol (Intermediate 100, 172.0 mg, 0.78 mmol) in 5 mL of CH2C12 was cooled to 0 °C and to it was added 2-[N,N-bis(trifluoromethylsulfonyl)amino]-5- chloropyridine (321.0 mg, 0.82 mmol) and triethylamine (240.0 mg, 2.4 mmols). The resulting solution was warmed to room temperature and stirred overnight. The reaction was quenched by the addition of H20 and the mixture extracted with EtOAc and the combined organic layers were washed with 10%) aqueous HC1, saturated aqueous NaHC03, H20, and saturated aqueous NaCl. The solution was dried (MgS04) and concentrated under reduced pressure. The title compound was isolated by column chromatography (2-4% EtOAc-hexanes) as a colorless oil, 240.0 mg, 87%. 'H NMR (CDC13) δ: 7.31 (IH, d, J = 8.6 Hz), 7.18 (IH, d, J = 2.6 Hz), 7.00 (IH, dd, J = 2.6, 8.6 Hz), 3.87 (IH, septet, J = 7.0 Hz), 2.38 (2H, q, J = 7.0 Hz), 1.24 (6H, d, J = 7.0 Hz), 1.15 (2H, m), 1.04 (3H, t, J = 7.0 Hz), 0.86 (2H, m). [4-(l-Ethoxycycloρroρyl)-3-isoproρyl-phenylethynyl]-trimethylsilane (Intermediate 102) Using General Procedure D ; 4-( 1 -ethoxy cyclopropy l)-3 -isopropy 1- phenyl 1,1,1-trifluoromethansulfonate (Intermediate 101, 240.0 mg, 0.68 mmol) in triethylamine (2 mL) and DMF (6 mL) was sparged with argon for 5 minutes. Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis-(triphenylphosphine)palladium(II) (38.0 mg, 0.05 mmol). The resulting reaction mixture was heated to 95 °C for 5d. The title compound, 200.0 mg (99%>), was isolated by chromatography (0 - 2%o EtOAc - hexanes) as an orange oil. Η NMR (CDCI3) δ: 7.43 (IH, d, J = 1.7 Hz), 7.25 (IH, dd, J = 1.7, 7.9 Hz), 7.16 (IH, d, J = 7.9 Hz), 3.80 (IH, septet, J = 6.8 Hz), 3.26 (2H, q, J = 7.0 Hz), 1.24 (6H, d, J = 6.8 Hz), 1.24-1.10 (2H, m), 1.03 (3H, t, J = 7.0 Hz), 0.87 (2H, s), 0.26 (9H, s). 1 -( 1 -Ethoxycv clopropylV 4-ethynyl-2-isopropylbenzene (Intermediate 103) Using General Procedure E; [4-(l-ethoxycyclopropyl)-3-isopropyl- phenylethynyl]-trimethylsilane (Intermediate 102, 210.0 mg, 0.70 mmol) in methanol (10 mL) was treated with potassium carbonate (100.0 mg, 0.72 mmol) and stirred overnight at ambient temperature. The crude alkyne was used directly in the next reaction. Η NMR (CDCI3) δ: 7.47 (IH, d, J = 1.7 Hz), 7.23 (IH, dd, J = 1.7, 7.6 Hz), 7.19 (IH, d, J = 7.6 Hz), 3.80 (IH, septet, J = 7.0 Hz), 3.27 (IH, q, J = 7.0 Hz), 3.07 (IH, s), 1.23 (6H, d, J = 7.0 Hz), 1.13 (2H, m), 1.03 (3H, t, J = 7.0 Hz), 0.85 (2H, m). Ethyl 4-[4-(l-ethoxycvcloρropyl)-3-isoproρvl-ρhenv1ethvnyl]-benzoate (Compound 99, General Formula 2) Using General Procedure F; 1-(1 -ethoxy cycloproρyl)-4-ethynyl-2- isopropylbenzene (Intermediate 103, 50.0 mg, 0.22 mmol) and ethyl-4-iodo benzoate (Reagent A, 60.0 mg, 0.22 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (14.0 mg, 0.07 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)-palladium(II) (51 mg, 0.07 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (l-2%> EtOAc - hexanes) afforded 28.0 mg (34%) of the title compound. Η NMR (CDC13) δ: 8.01 (2H, d, J = 8.2 Hz), 7.59 (2H, d, J = 8.2 Hz), 7.51 (IH, d J = 1.7 Hz), 7.28 (IH, dd, J = 1.7, 7.9 Hz), 7.21 (IH, d, J = 7.9 Hz), 4.38 (2H, q, J = 7.1 Hz), 3.83 (IH, septet, J = 6.7 Hz), 3.29 (2H, q, J = 7.0 Hz), 1.40 (3H, t, J = 7.1 Hz), 1.26 (6H, d, J = 6.7 Hz), 1.14 (2H, m), 1.04 (3H, t, J = 7.0 Hz), 0.87 (2H, m). Methyl l4-f4-(l-ethoxycvcloproρyl)-3-isoρroρyl-phenylethynyl]-phenyl}- acetate (Compound 100, General Formula 2) Using General Procedure F ; 1 -( 1 -ethoxy cyclopropy l)-4-ethyny 1-2- isopropylbenzene (Intermediate 103, 120.0 mg, 0.52 mmol) and methyl-(4- iodophenyl)-acetate (Reagent B, 150.0 mg, 0.52 mmol) in triethylamine (8 mL) was treated with copper(I)iodide (32.0 mg, 0.17 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (121 mg, 0.17 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-5% EtOAc - hexanes) afforded 140.0 mg (71%>) of the title compound as a pale-yellow oil. 'H NMR (CDC13) δ: 7.53 (3H, m), 7.31-7.23 (4H, m), 3.86 (IH, septet, J = 6.7 Hz), 3.73 (3H, s), 3.67 (2H, s), 3.33 (2H, q, J = 7.0 Hz), 1.30 (6H, d, J = 6.7 Hz), 1.15 (2H, m), 1.08 (3H, t, J = 7.0 Hz), 0.90 (2H, m). 4-[4-(l-Ethoχycvc1oproρvn-3-isopropyl-ρhenylethvnv1]-benzoic cid (Compound 101, General Formula 2) Using General Procedure I; A solution of ethyl 4-[4-( 1 - ethoxycycloρroρyl)-3-isopropyl-phenylethynyl]-benzoate (Compound 99, 28.0 mg, 0.07 mmol) in ethanol (2 mL) and tetrahydrofuran (2 mL) was treated with NaOH (80.0 mg, 2.0 mmols, 2.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 24 mg (92%>) the title compound as a pale-yellow solid. 'H NMR (d6-acetone) δ: 8.06 (2H, d, J = 8.2 Hz), 7.66 (2H, d, J = 8.2 Hz), 7.58 (IH, s), 7.33 (2H, m), 3.87 (IH, m), 2.27 (2H, q, J = 7.0 Hz), 1.26 (6H, d, J = 6.7 Hz), 1.09 (2H, m), 0.99 (3H, t, J = 7.0 Hz), 0.88 (2H, m). {4-[4-(l-Ethoxycyclopropyl)-3-isoρropyl-ρhenylethynyl]-ρhenyl}-acetic acid (Compound 102, General Formula 2) Using General Procedure I; a solution of methyl {4-[4-( 1 - ethoxycycloproρyl)-3-isoproρyl-phenylethynyl]-ρhenyl}-acetate (Compound 100, 130.0 mg, 0.35 mmol) in ethanol (5 mL) and tetrahydrofuran (5 mL) was treated with NaOH ( 120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred at 50 °C for 4h. Work-up and isolation by HPLC (Partisil 10-pac, 10% H20/CH3CN) afforded 88.0 mg (70%) of the title compound. 'H MR (CDC13) : 7.50 (3H, m), 7.28-7.19 (4H, m), 3.82 (IH, m), 3.65 (2H, s), 3.29 (2H, q, J = 7.0 Hz), 1.25 (6H, d, J = 6.7 Hz), 1.14 (2H, m), 1.04 (3H, t, J = 7.0 Hz), 0.86 (2H, m). -Bromo-3-tgrt-butylphenol (Intermediate 104) To a mixture of 3-tert-butyl-methoxy benzene (1.00 g, 6.09 mmols) in CC14 (20 mL), molecular sieves, and silica gel was added N- bromosuccinimide (1.19 g, 6.70 mmols). This mixture was stirred at 55 °C for 48h. The resulting mixture was cooled to room temperature, filtered to remove the solids, and the filtrate diluted with EtOAc. This solution was washed with H20, 10%) aqueous HC1, H20, saturated aqueous ΝaHC03 and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. Column chromatography (2.5%o EtOAc-hexanes) afforded 1.15 g (78%) of a 3 to 1 mixture of 1 -bromo-2-tert-butyl methoxy benzene and l-bromo-2-methoxy-4-/ert-butyl benzene as a colorless oil. A solution of the isomeric methoxy compounds in 10 mL of CH2C12 was cooled to 0 °C and treated with a solution (18.5 mL) of BBr3 in CH2C12 (4.63 g, 18.5 mmols). After 10 minutes the solution was warmed to room temperature, stirred for lh, and then quenched with H20. The mixture was extracted with EtOAc and the combined organic layers washed with saturated aqueous NaCl, dried (MgS04), and concentrated under reduced pressure. The title compound was isolated, 1.17 g (59%), by column chromatography (2.5-5%) EtO Ac-hexanes) . 'H NMR (CDC13) δ: 7.39 (IH, d, J = 8.5 Hz), 6.96 (IH, d, J = 2.9 Hz), 6.54 (IH, dd, J = 2.9, 8.5 Hz), 1.46 (9H, s). (4-Bromo-3-tert-butyl-phenoχy -triisopropyl-silane (Intermediate 105) To a solution of 4-bromo-3-tert-butylphenol (Intermediate 104, 1.17 g, 5.10 mmols) and imidazole (520.0 mg, 7.65 mmols) in 10 mL DMF was added chloro-triisopropylsilane (1.18 g, 6.10 mmols). After stirring overnight at room temperature the solution was diluted wirth H20 and extracted with EtOAc. The combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. The title compound, 1.80 g (92%), was isolated by column chromatography (0- 1.5% EtOAc-hexanes) as a colorless oil. 'H NMR (CDC13) δ: 7.38 (IH, d, J = 8.0 Hz), 6.97 (IH, d, J = 2.9 Hz), 6.56 (IH, dd, J = 2.9, 8.5 Hz), 1.47 (9H, s), 1.29-1.24 (3H, m), 1.09 (18H, d, J = 6.7 Hz). Ethyl 2-tgrt-butyl-4-triisopropylsil an yloxy-benzoate (Intermediate 106) To a solution of (4-bromo-3-tert-butyl-ρhenoxy)-triisoρroρyl-silane (Intermediate 105, 1.00 g, 2.60 mmols) in 15 mL Et20 cooled to -78 °C was added 3.6 mL of tert-butyllithium, 1.7 M in pentane (395.0 mg, 6.2 mmols). After stirring for 30 minutes ethyl chloroformate (607.6 mg, 5.6 mmols) was added. The resulting solution was warmed to room temperature and quenched by the addition of saturated aqueous NH4C1. The mixture was extracted with EtOAc and the combined organic layers dried (MgS04) concentrated under reduced pressure The residue was chromatographed (2- 5%> EtOAc-hexanes) to give 1.23 g (88%>) of the title compound as a colorless oil. Η NMR (CDCI3) δ: 7.24 (IH, d, J = 8.2 Hz), 6.97 (IH, d, J = 2.6 Hz), 6.69 (IH, dd, J = 2.6, 8.2 Hz), 4.33 (2H, q, J = 7.1 Hz), 1.39 (9H, s), 1.37 (3H, t, J = 7.1 Hz), 1.29-1.21 (3H, m), 1.10 (18H, d, J = 6.7 Hz). 14-( 1 -Ethoxyviny l)-3 -tert-butyl-phenoxy]-triisopropy l-silane (Intermediate 107) Using General Procedure 1 ; ethyl 2-tert-butyl-4- triisopropylsilanyloxy-benzoate (Intermediate 106, 1.30 g, 3.44 mmols) and 7.2 mL of Tebbe's Reagent (1.03 g, 3.61 mmols) were reacted. The reaction required 7 days at room temperature to go to completion. The standard work-up afforded 1.29 g (78%) of the title compound after column chromatography (1-2%) EtOAc-hexanes). Η NMR (CDCI3) δ: 7.05 (IH, d, J = 8.2 Hz), 6.94 (IH, d, J = 2.6 Hz), 6.63 (IH, dd, J = 2.6, 8.2 Hz), 4.20 (IH, d, J = 1.7 Hz), 4.08 (IH, d, J = 1.7 Hz), 3.83 (2H, q, J = 7.1 Hz), 1.37 (9H, s), 1.36 (3H, t, J = 7.1 Hz), 1.27-1.20 (3H, m), 1.10 (18H, d, J = 6.7 Hz). [4-( 1 -Ethoxy cyclopropy 1V3 -tert-butyl-ρhenoxy]-triisoρropy 1-silane (Intermediate 108) Using General Procedure 2 ; [4-( 1 -ethoxy viny l)-3 -tert-buty 1- phenoxyj-triisopropyl-silane (Intermediate 107, 320. 0 mg, 0.85 mmols), Et^Zn (325.0 mg, 2.63 mmols), and CH2I2 (704.0 mg, 2.63 mmols) in 5.0 mL Et,0 afforded 257.0 mg (66%) of the title compound as a colorless oil after chromatography (l-2.5%> EtOAc - hexanes). 'H NMR (CDCI3) δ: 7.24 (IH, d, J = 8.5 Hz), 7.06 (IH, d, J = 2.6 Hz), 6.60 (IH, dd, J = 2.6, 8.5 Hz), 3.24 (2H, q, J = 7.1 Hz), 1.50 (9H, s), 1.29-1.21 (3H, m), 1.11 (18H, d, J = 6.7 Hz), 1.04 (3H, t, J = 7.1 Hz). 4-( 1 -Ethoxy cvcloproρvD-3 -tgrt-butv 1-ρhenol (Intermediate 109) To a solution of [4-(l-ethoxycyclopropyl)-3-tgrt-butyl-phenoxy]- triisopropyl-silane (Intermediate 108, 600.0 mg, 1.54 mmol) in 3 mL THF at 0 °C was added tetrabutylammonium fluoride (802.8.0 mg, 3.07 mmols; 3.1 mL of a 1 M solution in THF). The solution was stirred at 0 °C for 30 minutes and then quenched by the addition of H20. The mixture was extracted with EtOAc and the combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. The title compound (400 mg, 88%.) was isolated from the residue by column chromatography (4- 10% EtOAc- hexanes) as a colorless solid. 'H NMR (CDCI3) δ: 7.29 (IH, d, J - 8.2 Hz), 7.01 (IH, d, J = 2.6 Hz), 6.57 (IH, dd, J = 2.6, 8.2 Hz), 3.29 (2H, q, J = 7.1 Hz), 1.59 (9H, s), 1.08-1.04 (7H, m). 4-( 1 -Ethoxy cvcloρroρyl)-3-tgrt-butyl-phenyl 1.1.1-τrifluoromethansulfonate (Intermediate 110) A solution of 4-(l -ethoxy cyclopropy l)-3-tgrt-butyl-phenol (Intermediate 109, 400.0 mg, 1.71 mmol) in 10 mL of CH2C12 was cooled to 0 °C and to it was added 2-[N,N-bis(trifluoromethylsulfonyl)amino]-5- chloropyridine (705.0 mg, 1.79 mmol) and triethylamine (522.0 mg, 5.1 mmols). The resulting solution was warmed to room temperature and stirred overnight. The reaction was quenched by the addition of H20 and the mixture extracted with EtOAc and the combined organic layers were washed with 10%) aqueous HC1, saturated aqueous NaHC03, H20, and saturated aqueous NaCl. The solution was dried (MgS04) and concentrated under reduced pressure. The title compound was isolated by column chromatography (2-4% EtOAc-hexanes) as a colorless oil, 542.0 mg (87%>). Η NMR (CDC13) δ: 7.48 (IH, d, J = 8.5 Hz), 7.39 (IH, d, J = 2.6 Hz), 7.01 (IH, dd, J = 2.6, 8.5 Hz), 3.26 (2H, q, J = 7.1 hz), 1.52 (9H, s), 1.12 (2H, bs), 1.08-1.04 (5H, m). 4-(l-Ethoxycvcloρroρyl)-3-tgrt-butyl-ρhenylethvnyl]-trimethylsilane (Intermediate 111) Using General Procedure D; 4-( 1 -ethoxy cyclopropy l)-3 -tgrt-butyl- phenyl 1,1,1-trifluoromethansulfonate (Intermediate 110, 260.0 mg, 0.71 mmol) in triethylamine (4 mL) and DMF (6 mL) was sparged with argon for 5 minutes. Trimethylsilylacetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis-(triphenylρhosphine)palladium(II) (40.0 mg, 0.06 mmol). The resulting reaction mixture was heated to 95 °C for 18 hours. The title compound, 215.0 mg (96%»), was isolated by chromatography (0 - 2% EtOAc - hexanes) as an orange oil. 'H NMR (CDC13) δ: 7.63 (IH, d, J = 1.7 Hz), 7.32 (IH, d, J = 7.9 Hz), 7.19 (IH, dd, J = 1.7, 7.9 Hz), 3.24 (2H, q, J = 7.1 Hz), 1.51 (9H, s), 1.10 (2H, bs), 1.06-1.01 (5H, m), 0.25 (9H, s). 1 -( 1 -Ethoxycy clopropy l -4-ethvny 1-2-tgrt-butv lbenzene (Intermediate 112) Using General Procedure E; [4-(l-ethoxycyclopropyl)-3-tgrt-butyl- phenylethynylj-trimethylsilane (Intermediate 111, 215.0 mg, 0.69 mmol) in methanol (10 mL) was treated with potassium carbonate (80.0 mg, 0.58 mmol) and stirred overnight at ambient temperature. The crude alkyne, 169 mg, was used directly in the next reaction. Η NMR (CDC13) δ: 7.68 (IH, d, J = 1.8 Hz), 7.36 (IH, d, J = 7.9 Hz), 7.23 (IH, dd, J = 1.8, 7.9 Hz), 3.26 (2H, q, J = 7.1 Hz), 3.06 (IH, s), 1.51 (9H, s), 1.11 (2H, bs), 1.07-1.02 (5H, m). Ethyl 4-[4-(l-ethoχycvcloproρyl)-3-tgrt-butyl-phenylethynyl]-benzoate (Compound 103, General Formula 2) Using General Procedure F ; 1 -( 1 -ethoxy cyclopropy l)-4-ethyny 1-2- tgrt-butylbenzene (Intermediate 112, 70.0 mg, 0.30 mmol) and ethyI-4-iodo benzoate (Reagent A, 85.0 mg, 0.30 mmol) in triethylamine (5 mL) was treated with copper(I)iodide ( 19.0 mg, 0.01 mmol) and sparged with argon for 5 minutes. Dichlorobis(triρhenylρhosphine)-ρalladium(II) (70 mg, 0.01 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (1-2% EtOAc - hexanes) afforded 70.0 mg (73%) of the title compound. 'H NMR (CDCI3) δ: 8.02 (2H, d, J = 8.8 Hz), 7.72 (IH, d, J = 1.7 Hz), 7.59 (2H, d, J = 8.8 Hz), 7.40 (IH, d, J = 7.9 Hz), 7.28 (IH, dd, J = 1.7, 7.9 Hz), 4.39 ( 2H, q, J = 7.1 Hz), 3.28 (2H, q, J = 7.1 Hz), 1.55 (9H, s), 1.40 (3H, t, J = 7.1 Hz), 1.12 (2H, bs), 1.08-1.04 (5H, m). Methyl (4T4-( 1 -ethoxycycloproρyl)-3-tgr -butyl-phenylethvnyl]-phenyU - acetate (Compound 104, General Formula 2) Using General Procedure F; 1 -(1-ethoxycyclopropy l)-4-ethynyl-2- tgrt-butylbenzene (Intermediate 112, 95.0 mg, 0.39 mmol) and methyl-(4- iodoρhenyl)-acetate (Reagent B, 108.0 mg, 0.39 mmol) in triethylamine (8 mL) was treated with coρρer(I)iodide (25.0 mg, 0.13 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylρhosρhine)ρalladium(II) (91 mg, 0.13 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-5%o EtOAc - hexanes) afforded 100.0 mg (72%>) of the title compound. 'H NMR (CDC13) δ: 7.70 (IH, d, J = 1.5 Hz), 7.50 (2H, d, J = 7.9 Hz), 7.38 (IH, d, J = 7.9 Hz), 7.27 (3H, m), 3.70 (3H, s), 3.64 (2H, s), 3.28 (2H, q, J = 7.1 Hz), 1.54 (9H, s), 1.12 (2H, bs), 1.08-1.03 (5H, m). 4- [4-( 1 -Ethoxy cyclopropy l)-3 -fert-butyl-phenylethynv l]-benzoic acid (Compound 105, General Formula 2) Using General Procedure I; a solution of ethyl 4-[4-(l- ethoxy cy clopropy l)-3-tgrt-butyl-phenylethynyl]-benzoate (Compound 103, 70.0 mg, 0.18 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (240.0 mg, 6.0 mmols, 3.0 mL of a 2N aqueous solution) and stirred overnight at room temperature. Work-up afforded 40 mg (62%) the title compound as a pale-yellow solid. 'H NMR (d6-acetone) δ: 8.06 (2H, d, J = 8.7 Hz), 7.76 (IH, d, J = 1.8 Hz), 7.67 (2H, d, J = 8.7 Hz), 7.50 (IH, d, J = 7.9 Hz), 7.33 (IH, dd, J = 1.8, 7.9 Hz), 3.28 (2H, q, J = 7.3 Hz), 1.54 (9H, s), 1.13 (2H, bs), 1.10 (2H, m), 1.02 (3H, t, J = 7.3 Hz). {4-r4-(l-Ethoxycyclopropyl)-3-tβrt-butyl-phenylethvnyl]-phenyl>-acetic acid (Compound 106, General Formula 2) Using General Procedure I; a solution of methyl (4-[4-(l- ethoxycycloproρyl)-3-tgrt-butyl-phenylethynyl]-ρhenyl}-acetate (Compound 104, 100.0 mg, 0.26 mmol) in ethanol (4 mL) and tetrahydrofuran (4 mL) was treated with NaOH (240.0 mg, 6.0 mmols, 3.0 mL of a 2N aqueous solution) and stirred at 50 °C for 4h. Work-up and isolation by HPLC (Partisil 10-pac, 10% H20/CH3CN) afforded 70.0 mg (73%>) of the title compound. Η NMR (CDC13) δ: 7.73 (IH, d, J = 1.3 Hz), 7.53 (2H, d, J = 7.9 Hz), 7.41 (IH, d, J = 7.9 Hz), 7.28 (3H, m), 3.69 (2H, s), 3.31 (2H, q, J = 7.1 Hz), 1.56 (9H, s), 1.15 (2H, bs), 1.11-1.05 (5H, m). l-(4-Bromophenyl)-cyclopropanecarbonitrile (Intermediate 113) To a 50%o aqueous NaOH solution (40.0 g, wt/wt) was added benzyl triethylammonium chloride (1.0 g, 4.4 mmols), 4-bromobenzonitrile (19.6 g, 0.10 mol), and 1,2-dibromoethane (56.4 g, 0.30 mol). The mixture was stirred overnight at room temperature and then diluted with 100 mL of H20. This mixture was extracted with EtOAc and the combined extracts were washed with saturated aqueous NaHS203, H20, and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. Bulb-to-bulb distillation afforded 18.8 g (85%>) of the title compound as a colorless solid. Η NMR (CDC13) δ: 7.48 (2H, d, J = 8.6 Hz), 7.17 (2H, d, J = 8.6 Hz), 1.75 (2H, dd, J = 5.2, 7.6 Hz), 1.39 (2H, dd, J = 5.2, 7.6 Hz). 1 -(4-Bromophenyl)-cy clopropanecarboxy lie acid (Intermediate 114) To a solution of KOH (6.06 g, 0.11 mol) in 10 mL of H20 was added 40 mL of ethylene glycol and l-(4-bromophenyl)-cyclopropanecarbonitrile (Intermediate 113, 10.0 g, 0.45 mol). This solution was heated to 135-140 °C for 4h, cooled to room temperature, and then poured into a mixture of 100 mL ice and 10% aqueous HC1. The resulting mixture was allowed to stand overnight at 5 °C, the solid was collected by filtration and washed with H20. The colorless solid was dried under reduced pressure to give 10.6 g (97%) of the title compound. 'H NMR (CDC13) δ: 7.43 (2H, d, J = 8.5 Hz), 7.21 (2H, d, J = 8.5 Hz), 1.68 (2H, dd, J = 4.0, 7.1 Hz), 1.24 (2H, dd, J = 4.0, 7.1 Hz). Tgrt-butyl T 1 -(4-bromophenyl)-cvcloproρyll-carbamate (Intermediate 115) A solution of l-(4-bromoρhenyl)-cycloρropanecarboxylic acid (Intermediate 114, 2.32 g, 9.62 mmols), diphenylphosphoryl azide (2.65 g, 9.62 mmols), triethylamine (973.0 mg, 9.62 mmols) in 40 mL tgrt-BuOH (distilled from Na°) was heated to reflux for 17h. The solution was concentrated under reduced pressure and the residue dissolved in EtOAc and washed with 5%> aqueous HC1, H20, saturated aqueous NaHC03, and saturated aqueous NaCl before being dried over MgS04. Concentration of the dry solution under reduced pressure and column chromatography (5- 10%) EtOAc - hexanes) afforded 2.01 g (67%>) of the title compound as a colorless solid. 'H NMR (CDCI3) δ: 7.39 (2H, d, J = 8.3 Hz), 7.08 (2H, d, J = 8.3 Hz), 5.35 (IH, bs), 1.43 (9H, s), 1.26 (2H, m), 1.17 (2H, m). l-(4-Bromophenyl)-cvcloproρylamine (Intermediate 116) To a solution of tgrt-butyl [l-(4-bromophenyl)-cyclopropyl]- carbamate (Intermediate 115, 1.08 g, 3.40 mmols) in 20 mL MeOH and 20 mL THF was added 20 mL of 3M aqueous HC1. The solution was warmed to 35 °C for 3 hours and then stirred for 17h at 25 °C. The reaction was quenched by adjusting the pH of the solution to 12 with 3M aqueous NaOH. The mixture was extracted with Et,0 and the combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. The title compound 613 mg (85%o) was used without further purification. 'H NMR (CDC13) δ: 7.43 (2H, d, J = 8.3 Hz), 7.17 (2H, d, J = 8.3 Hz), 1.89 (2H, bs), 1.07 (2H, m), 0.95 (2H, m). N- [ l -(4-bromophenyl)-cy clopropyll-propionamide (Intermediate 117) To a solution of 1 -(4-bromoρheny l)-cy clopropy lamine (Intermediate 116, 84 mg, 0.4 mmol) in 4 mL CH2C12 at room temperature was added propionyl chloride (43.0 mg, 0.47 mmol) and pyridine (56.0 mg, 0.71 mmol). After stirring 17 hours at room temperature the reaction was quenched by the addition of H20 and extracted with EtOAc. The combined extracts were washed with 10% aqueous HC1, saturated aqueous ΝaHC03, and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. The title compound 85.0 mg (67%), was isolated by column chromatography (20-50%> EtOAc-hexanes) as a colorless solid. Η NMR (CDCI3) δ: 7.48 (2H, d, J = 8.5 Hz), 7.09 (2H, d, J = 8.5 Hz), 6.40 (IH, s), 2.19 (2H, q, J = 7.2 Hz), 1.18-1.24 (4H, m), 1.12 (3H, t, J = 7.2 Hz). f 1 -(4-Bromopheny D-cvclopropy l]-propylamine (Intermediate 118) To a solution of N-[l-(4-bromophenyl)-cyclopropyl]-propionamide (Intermediate 117, 85.0 mg, 0.32 mmol) in THF (5 mL) at 0 °C was added BH3-Me2S (48.0 mg, 0.63 mmol; 0.31 mL of a 2M solution in THF). The solution was heated to 55 °C for 17 hours, cooled to room temperature, saturated aqueous ΝaHC03 was added and the resulting mixture was stirred for 2 hours. This mixture was extracted with EtOAc and the combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. The title compound was isolated by column chromatography (10- 0%> EtOAc- hexanes). Η NMR (CDC13) δ: 7.42 (2H, d, J = 8.5 Hz), 7.19 (2H, d, J = 8.5 Hz), 2.46 (2H, t, J = 7.3 Hz), 1.40 (2H, m), 0.98 (2H, m), 0.86 (5H, m). Propyl-ri-(4-trimethylsilanylethynyl-phenyl)-cvclopropyl1-amine (Intermediate 119) Using General Procedure D; [ 1 -(4-bromophenyl)-cy clopropyl]- propylamine (Intermediate 118, 100.0 mg, 0.39 mmol) in triethylamine (8 mL) was treated with coρρer(I)iodide (13.0 mg, 0.06 mmol) and then sparged with argon for 5 minutes. Trimethylsilyl acetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis(triρhenylρhosphine)ρalladium(II) (48.0 mg, 0.06 mmol). The resulting reaction mixture was heated to 70 °C for 5days. The title compound (80.0 mg, 75%) was isolated by chromatography (0 - 10% EtOAc - hexanes) as an orange oil. Η NMR (CDCI3) δ: 7.41 (2H, d, J = 8.5 Hz), 7.21 (2H, d, J = 8.5 Hz), 2.45 (2H, t, J = 7.3 Hz), 1.39 (2H, m), 0.98 (2H, m), 0.87 (2H, m), 0.84 (3H, t, J = 7.3 Hz), 0.24 (9H, s). [l-(4-Ethynylphenyl)-cyclopropyl]-propylamine (Intermediate 120) Using General Procedure E; propyl-[ 1 -(4-trimethylsilanylethynyl- phenyl)-cycloproρyl]-amine (Intermediate 119, 80.0 mg, 0.30 mmols) in methanol (8 mL) was treated with potassium carbonate (80.0 mg, 0.59 mmol) and stirred overnight at ambient temperature. The crude alkyne (58 mg, 100%)) was used directly in the next reaction. 'H NMR (CDCI3) δ: 7.44 (2H, d, J = 8.5 Hz), 7.24 (2H, d, J = 8.5 Hz), 3.05 (IH, s), 2.46 (2H, t, J = 7.3 Hz), 1.41 (2H, m), 1.00 (2H, m), 0.90 (2H, m), 0.86 (3H, t, J = 7.3 Hz). Ethyl 4-[4-( 1 -propylamino-cy clopropy lVphenylethynylj-benzoate (Compound 107, General Formula 2) Using General Procedure F; [l-(4-ethynylphenyl)-cyclopropyl]- propylamine (Intermediate 120, 38.0 mg, 0.19 mmol) and ethyl-4-iodo benzoate (Reagent A, 58.0 mg, 0.21 mmol) in triethyl amine (6 mL) was treated with coρper(I)iodide (8.0 mg, 0.04 mmol) and sparged with argon for 5 minutes. Dichlorobis(triρhenylρhosphine)ρalladium(II) (27 mg, 0.04 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (5- 15% EtOAc - hexanes) afforded 40.0 mg (61%>) of the title compound as an orange oil. Η NMR (CDC13) δ: 8.01 (2H, d, J = 8.5 Hz), 7.57 (2H, d, J = 8.5 Hz), 7.49 (2H, d, J = 8.5 Hz), 7.28 (2H, d, J = 8.5 Hz), 4.39 (2H, q, J = 7.1 Hz), 2.49 (2H, t, J = 7.3 Hz), 1.46 (2H, m), 1.41 (3H, t, J = 7.1 Hz), 1.01 (2H, m), 0.89 (2H, m), 0.87 (3H, t, J = 7.3 Hz). 4-[4-(l-Propylamino-cyclopropyl)-phenylethynyl]-benzoic acid (Compound 108, General Formula 2) Using General Procedure I; a solution of ethyl 4-[4-(l-propylamino- cy clopropy l)-phenylethynyl]-benzoate (Compound 107, 40.0 mg, 0.12 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (160.0 mg, 4.0 mmols, 2.0 mL of a 2N aqueous solution) and stirred overnight at room temperature. Work-up afforded 25.0 mg (69%>) of the title compound as a solid. 'H NMR (d6-DMSO) δ: 7.97 (2H, d, J - 8.5 Hz), 7.65 (2H, d, J = 8.5 Hz), 7.50 (2H, d, J = 8.5 Hz), 7.36 (2H, d, J = 8.5 Hz), 2.39 (2H, t, J = 7.3 Hz), 1.37 (2H, m), 1.00 (2H, m), 0.93 (2H, m), 0.84 (3H, t, J = 7.3 Hz). [ 1 -(4-Bromoρhenyl)-cvclopropy l]-dipropylamine (Intermediate 121) To a solution of l-(4-bromophenyl)-cy clopropy lamine (Intermediate 116) in CH3CN / HOAc (5 mL, 9:1, v/v) and THF 3 mL at 0 °C was added propionaldehyde (277.0 mg, 4.95 mmols) and NaCNBH3 (153.0 mg, 2.47 mmols). The reaction was warmed to room temperature and after 5hours quenched with H20. The pH of the solution was adjusted to 8-9 using aqueous NaOH and extracted with EtOAc. The combined extracts were washed with H20 and saturated aqueous NaCl, dried (MgS04) and concentrated under reduced pressure. The title compound, 190.0 mg (56%), was isolated by column chromatography (2-5% EtOAc-hexanes). 'H NMR (CDC13) δ: 7.42 (2H, d, J = 8.3 Hz), 7.18 (2H, d, J = 8.3 Hz), 2.39 (4H, t, J = 7.3 Hz), 1.62-1.40 (4H, m), 0.96 (2H, m), 0.86 (6H, t, J = 7.3 Hz), 0.80 (2H, m). Dipropyl-[l-(4-trimethylsilanylethynyl-phenyl)-cvclopropyl]-amine (Intermediate 122) Using General Procedure D; [l-(4-bromophenyl)-cy clopropy 1]- dipropylamine (Intermediate 121, 150.0 mg, 0.50 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (10.0 mg, 0.05 mmol) and then sparged with argon for 5 minutes. Trimethylsilyl acetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis(triphenylphosphine)palladium(II) (35.0 mg, 0.05 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound was isolated by chromatography (0 - 3%> EtOAc - hexanes). 'H NMR (CDCI3) δ: 7.35 (2H, d, J = 8.3 Hz), 7.24 (2H, d, J = 8.3 Hz), 2.39 (4H, t, J = 7.3 Hz), 1.55-1.42 (4H, m), 0.96 (2H, m), 0.88-0.79 (8H, m), 0.25 (9H, s). [ 1 -(4-Ethynylphenyl)-cvcloproρyl]-dipropylamine (Intermediate 123) Using General Procedure E; dipropyl-[l-(4-trimethylsilanylethynyl- phenyl)-cy clopropy l]-amine (Intermediate 122, 45.0 mg, 0.14 mmols) in methanol (5 mL) was treated with potassium carbonate (50.0 mg, 0.37 mmol) and stirred overnight at ambient temperature. The crude alkyne (34 mg, 100%)) was used directly in the next reaction. 'H NMR (CDC13) δ: 7.42 (2H, d, J = 8.3 Hz), 7.28 (2H, d, J = 8.3 Hz), 2.40(4H, t, J = 7.3 Hz), 1.53-1.40 (4H, m), 0.96 (2H, m), 0.90-0.79 (8H, m). Ethyl 4-r4-(1 -diρroρylamino-cvcloρroρv1)-ρheny1ethynyl]-benzoate (Compound 109, General Formula 2) Using General Procedure F; [l-(4-ethynylphenyl)-cyclopropyl]- dipropylamine (Intermediate 123, 34.0 mg, 0.16 mmol) and ethyl-4-iodo benzoate (Reagent A, 59.0 mg, 0.21 mmol) in triethyl amine (6 mL) was treated with coρρer(I)iodide (13.0 mg, 0.07 mmol) and sparged with argon for 5 minutes. Dichlorobis(triρhenylρhosρhine)palladium(II) (49 mg, 0.07 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc - hexanes) afforded the title compound as a yellow oil. Η NMR (CDCI3) δ: 8.03 (2H, d, J = 8.2 Hz), 7.58 (2H, d, J = 8.2 Hz), 7.49 (2H, d, J - 8.2 Hz), 7.30 (2H, d, J = 8.2 Hz), 4.39 (2H, q, J = 7.1 Hz), 2.43 (4H, t, J = 7.3 Hz), 1.52-1.42 (4H, m), 1.41 (3H, t, J = 7.1 Hz), 0.99 (2H, m), 0.88-0.83 (8H, m). 4- [4-( 1 -Dipropylamino-cvclopropy l)-pheny lethvny 1] -benzoic acid (Compound 110, General Formula 2) Using General Procedure I; a solution of ethyl 4-[4-( 1 - dipropylamino-cy clopropy l)-ρhenylethynyl]-benzoate (Compound 109, 51.0 mg, 0.13 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (80.0 mg, 2.0 mmols, 2.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 32.0 mg (70%) of the title compound as a colorless solid. 'H NMR (d6-DMSO) δ: 7.98 (2H, d, J = 8.3 Hz), 7.67 (6H, m), 3.05-2.89 (4H, m), 1.98 (2H, m), 1.72 (4H, m), 1.23 (2H, m), 0.88 (6H, t, J = 7.3 Hz). Benzyl-[l-(4-bromophenv1Vcvcloproρv1]-amine (Intermediate 124) and Dibenzyl-r 1 -f 4-bromophenylVcv clopropyl] -amine (Intermediate 125) A solution of 1 -(4-bromophenyl)-cy clopropy lamine (Intermediate 116, 244.0 mg, 1.15 mmols) and benzyl bromide (255.0 mg, 1.50 mmols) in 4 mL DMF was stirred at 85 °C for 6 hours, cooled to room temperature and stirred overnight. The solution was diluted with H20 and the pH adjusted to 8-9 with aqueous NaOH. The solution was extracted with EtOAc and the combined organic layers were washed with H20 and saturated aqueous NaCl, dried (MgS04) and concentrated under reduced pressure. Column chromatography (5-10%o EtOAc-Hexanes) afforded 110 mg (32%) of the N- benzyl amine. 'H NMR (CDC13) δ: 7.48 (2H, d, J = 8.4 Hz), 7.30-7.23 (7H, m), 3.68 (2H, s), 1.07 (2H, m), 0.93 (2H, m); and 100 mg (22%) of the NN-dibenzyl amine, !H ΝMR (CDC13) δ: 7.55 (2H, d, J = 8.3 Hz), 7.40-7.19 (12H, m), 3.61 (4H, s), 0.87 (2H, m), 0.71 (2H, m). Benzyl-[l-(4-trimethylsilanylethynyl-phenyl -cyclopropyl]-amine (Intermediate 126) Using General Procedure D; benzyl-[l-(4-bromophenyl)- cycloproρyl]-amine (Intermediate 124, 110.0 mg, 0.36 mmol) in triethylamine (8 mL) was treated with copρer(I)iodide (10.0 mg, 0.05 mmol) and then sparged with argon for 5 minutes. Trimethylsilyl acetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis(triphenylphosphine)palladium(II) (38.0 mg, 0.05 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound 85 mg (14%) was isolated by chromatography (1 - 10% EtOAc - hexanes). Η ΝMR (CDCI3) δ: 7.46 (2H, d, J = 8.3 Hz), 7.31-7.22 (7H, m), 3.67 (2H, s), 1.06 (2H, m), 0.94 (2H, m), 0.26 (9H, s). Benzyl-[l-(4-ethvnylpheny1)-cvclopropyl]-amine (Intermediate 127) Using General Pocedure E; benzy l-[l-(4-trimethylsilanylethynyl- phenyl)-cyclopropyl]-amine (Intermediate 126, 85.0 mg, 0.27 mmol) in methanol (5 mL) was treated with potassium carbonate (50.0 mg, 0.37 mmol) and stirred overnight at ambient temperature. The crude alkyne (65 mg, 100%>) was used directly in the next reaction. Η NMR (CDC13) δ: 7.49 (2H, d, J = 7.9 Hz), 7.32 (2H, d, J = 7.9 Hz), 7.23 (5H, m), 3.68 (2H, s), 3.08 (IH, s), 1.07 (2H, m), 0.95 (2H, m). Ethyl 4-[4-(l-benzylamino-cvclopropyl -phenylethynyl]-benzoate (Compound 111, General Formula 2) Using General Procedure F; benzy l-[ 1 -(4-ethynylρheny 1)- cyclopropyl] -amine (Intermediate 127, 65.0 mg, 0.27 mmol) and ethyl-4- iodo benzoate (Reagent A, 68.0 mg, 0.27 mmol) in triethyl amine (8 mL) was treated with copper(I)iodide (16.0 mg, 0.08 mmol) and sparged with argon for 5 minutes. Dichlorobis (triphenylphosphine)palladium(II) (58 mg, 0.08 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-5% EtOAc - hexanes) afforded 90 mg (90%>) of the title compound as an orange solid. Η NMR (CDCI3) δ: 8.05 (2H, d, J = 8.3 Hz), 7.61 (2H, d, J = 8.3 Hz), 7.55 (2H, d, J = 8.1 Hz), 7.43 (2H, d, J = 8.1 Hz), 7.32-7.22 (5H, m), 4.40 (2H, q, J = 7.1 Hz), 3.72 (2H, s), 1.42 (2H, t, J = 7.1 Hz), 1.01 (2H, m), 0.99 (2H, m). 4-[4-( 1 -Benzylamino-cvclopropyl)-phenylethynyl]-benzoic acid (Compound 112, General Formula 2) Using General Procedure I; a solution of ethyl 4-[4-(l -benzy lamino- cycloproρyl)-ρhenylethynyl]-benzoate (Compound 111, 75.0 mg, 0.19 mmol) in ethanol (4 mL) and tetrahydrofuran (4 mL) was treated with NaOH (80.0 mg, 2.0 mmols, 2.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 35.0 mg (50%) of the title compound as a colorless solid. 'H NMR (CD3OD) δ: 7.93 (2H, d, J = 8.3 Hz), 7.61-7.51 (6H, m), 7.32-7.23 (5H, m), 3.98 (2H, s), 1.33(2H, m), 1.19 (2H, m). Dibenzyl-[l-(4-trimethylsilanylethynyl-phenyl -cvclopropyll-amine (Intermediate 128) Using General Procedure D; dibenzyl-[l -(4-bromophenyl)- cycloρroρyl]-amine (Intermediate 125, 45.0 mg, 0.11 mmol) in triethylamine (8 mL) was treated with coρρer(I)iodide (10.0 mg, 0.05 mmol) and then sparged with argon for 5 minutes. Trimethylsilyl acetylene (0.35 g, 3.6 mmols) was then added followed by dichlorobis(triρhenylphosphine)palladium(II) (35.0 mg, 0.05 mmol). The resulting reaction mixture was heated to 70 °C for 5d. The title compound 40 mg (88%) was isolated by chromatography (hexanes). 'H NMR (CDC13) δ: 7.52 (2H, d, J = 8.3 Hz), 7.36-7.24 (12H, m), 3.60 (4H, s), 0.87 (2H, m), 0.67 (2H, m), 0.29 (9H, s). Dibenzyl- [ 1 -(4-ethvnylphenyl)-cvclopropyll-amine (Intermediate 129) Using General Procedure E; dibenzyl- [ 1 -(4-trimethy lsilany lethyny 1- phenyl)-cyclopropyl]-amine (Intermediate 128, 100.0 mg, 0.26 mmol) in methanol (5 mL) was treated with potassium carbonate (60.0 mg, 0.44 mmol) and stirred overnight at ambient temperature. The crude alkyne (80 mg, 99%>) was used directly in the next reaction. 'H NMR (CDCI3) δ: 7.53 (2H, d, J = 7.9 Hz), 7.36 (2H, d, J = 7.9 Hz), 7.28- 7.25 (10H, m), 3.62 (4H, s), 3.11 (IH, s), 0.88 (2H, m), 0.68 (2H, m). Ethyl 4-[4-(l-dibenzylamino-cyclopropyl)-phenylethynyl]-benzoate (Compound 113, General Formula 2) Using General Procedure F; dibenzyl-[l -(4-ethynylρhenyl)- cyclopropyl]-amine (Intermediate 129, 40.0 mg, 0.12 mmol) and ethyl-4- iodo benzoate (Reagent A, 60.0 mg, 0.22 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (8.0 mg, 0.04 mmol) and sparged with argon for 5 minutes. Dichlorobis (triphenylρhosρhine)palladium(II) (27 mg, 0.04 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-5% EtOAc - hexanes) afforded the title compound as an oil. 'H NMR (CDC13) δ: 8.04 (2H, d, J = 8.5 Hz), 7.79 (4H, m), 7.42 (2H, d, J = 7.9 Hz), 7.29-7.17 (10H, m), 4.40 (2H, q, J = 7.1 Hz), 3.63 (4H, s), 1.42 (3H, t, J = 7.1 Hz), 0.88 (2H, m), 0.73 (2H, m). 4-[4-( 1 -Dibenzylamino-cvclopropyl)-phenylethynyl]-benzoic acid (Compound 114, Formula 2) Using General Procedure I; a solution of ethyl 4- [4-( 1 - dibenzylamino-cyclopropyl)-phenylethynyl]-benzoate (Compound 113, 48.0 mg, 0.10 mmol) in ethanol (2 mL) and tetrahydrofuran (2 mL) was treated with NaOH (80.0 mg, 2.0 mmols, 2.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 42.0 mg (93%o) of the title compound as a colorless solid. 'H NMR (d6-DMSO) δ: 7.98 (2H, d, J = 8.2 Hz), 7.67 (2H, d, J = 8.2 Hz), 7.64 (2H, d, J = 7.9 Hz), 7.47 (2H, d, J = 7.9 Hz), 7.28-7.20 (10H, m), 3.57 (4H, s), 0.84 (2H, m), 0.69 (2H, m). Benzyl-[l-(4-bromophenyl)-cyclopropyl]-methylamine (Intermediate 130) To a solution of benzyl-[l-(4-bromophenyl)-cyclopropyl]-amine (Intermediate 124, 100.0 mg, 0.33 mmol) in 5 mL of acetone was added K2C03 (91 mg, 0.66 mmol) and iodomethane (2.28 g, 16.1 mmols). The resulting mixture was stirred at 25 °C for 20 hours, diluted with Et20, and washed with H20 and saturated aqueous NaCl. The solution was dried (MgS04) and concentrated under reduced pressure to give 90 mg (86%>) of the title compound. 'H NMR (CDC13) δ: 7.47 (2H, d, J = 8.5 Hz), 7.29-7.18 (7H, m), 3.53 (2H, s), 2.07 (3H, s), 1.07 (2H, m), 0.86 (2H, m). Benzyl-[l-(4-trimethylsilanylethynyl-phenyl)-cyclopropyl]-methylamine (Intermediate 131) Using General Procedure D; benzyl- [l-(4-bromopheny 1)- cyclopropyl]-methylamine (Intermediate 130, 90.0 mg, 0.28 mmol) in triethylamine (8 mL) was treated with copper(I)iodide (6.0 mg, 0.03 mmol) and then sparged with argon for 5 minutes. Trimethylsilyl acetylene (0.70 g, 7.1 mmols) was then added followed by dichlorobis(triphenylphosphine)palladium(II) (20.0 mg, 0.03 mmol). The resulting reaction mixture was heated to 70 °C for 5 days. The title compound 80 mg (84%>) was isolated by chromatography (0-2%> EtOAc- hexanes). Η NMR (CDCI3) δ: 7.46 (2H, d, J = 8.2 Hz), 7.32-7.18 (7H, m), 3.52 (2H, s), 2.06 (3H, s), 1.06 (2H, m), 0.87(2H, m), 0.26 (9H, s). Benzyl-[l-(4-ethynylphenyl)-cyclopropyl]-methylamine (Intermediate 132) Using General Procedure E; benzyl- [ 1 -(4-trimethy lsilany lethyny 1- phenyl)-cyclopropyl]-methylamine (Intermediate 131, 80.0 mg, 0.24 mmol) in methanol (5 mL) was treated with potassium carbonate (80.0 mg, 0.59 mmol) and stirred overnight at ambient temperature. The crude alkyne (60 mg, 99%o) was used directly in the next reaction. Η NMR (CDCI3) δ: 7.49 (2H, d, J = 8.2 Hz), 7.33-7.21 (7H, m), 3.55 (2H, s), 3.08 (IH, s), 2.08 (3H, s), 1.07 (2H, m), 0.89 (2H, m). Ethyl 4-f4-[l-(benzyl-methylamino)-cvclopropy1]-ρhenylethvny -benzoate (Compound 115, General Formula 2) Using General Procedure F; benzy l-[l-(4-ethynylphenyl)- cyclopropyl]-methylamine (Intermediate 132, 70.0 mg, 0.28 mmol) and ethyl-4-iodo benzoate (Reagent A, 77.0 mg, 0.28 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (18.0 mg, 0.10 mmol) and sparged with argon for 5 minutes. Dichlorobis (triphenylphosphine)palladium(II) (65 mg, 0.10 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-5% EtOAc - hexanes) afforded 86 mg (75%) of the title compound as an oil. Η NMR (CDC13) δ: 8.03 (2H, d, J = 8.5 Hz), 7.59 (2H, d, J = 8.5 Hz), 7.53 (2H, d, J = 8.2 Hz), 7.36 (2H, d, J = 8.2 Hz), 7.25 (5H, m), 4.39 (2H, q, J = 7.1 Hz), 3.57 (2H, s), 2.10 (3H, s), 1.41 (3H, t, J = 7.1 Hz), 1.10 (2H, m), 0.92 (2H, m). 4-[4-(l-Benzylmethylamino-cyclopropyl)-phenylethynyl]-benzoic acid (Compound 116, General Formula 2) Using General Procedure I; a solution of ethyl 4- {4-[ 1 -(benzyl- methylamino)-cyclopropyl]-phenylethynyl}-benzoate (Compound 115, 65.0 mg, 0.16 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (80.0 mg, 2.0 mmols, 2.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 45.0 mg (75%) of the title compound as a solid. 'H NMR (d6-DMSO) δ: 7.96 (2H, d, J = 8.3 Hz), 7.66 (2H, d, J = 8.3 Hz), 7.58 (2H, d, J = 8.2 Hz), 7.42 (2H, d, J = 8.2 Hz), 7.29-7.18 (5H, m), 3.52 (2H, s), 2.00 (3H, s), 1.02 (2H, m), 0.87 (2H, m). (4-Bromo-2-methyl-phenyl)-methanol (Intermediate 133) A solution of methyl 4-bromo-2-methyl-benzoate (1.05 g, 4.58 mmols) in 10 mL of Et was cooled to 0 °C and treated with LiAlH4 (177.0 mg, 4.58 mmols), stirred for 3 hours, and then carefully quenched with H20. The mixture was extracted with Et20 and the combined organic layers were washed with H20 and saturated aqueous NaCl, dried (MgS04), and concentrated under reduced pressure. The title compound, 830.0 mg (90%o), was isolated by column chromatography (10-30%o EtOAc-hexanes) as a colorless oil. 'H NMR (CDC13) δ: 7.30 (2H, m), 7.18 (IH, d, J = 8.8 Hz), 4.57 (2H, d, J = 5.5 Hz), 2.27 (3H, s), 2.13 (IH, t, J = 5.5 Hz). (4-Bromo-2-methyl-benzyloxy)-trimethylsilane (Intermediate 134) To a solution of (4-bromo-2-methyl-phenyl)-methanol (Intermediate 133, 500.0 mg, 2.48 mmols), in 10 mL THF was added triethylamine (374.0 mg, 3.70 mmols) and chlorotrimethylsilane (297.0 mg, 2.70 mmols). The resulting solution was stirred for 17 hours at 25 °C and then treated with H20 and extracted with Et20. The combined organic layers were washed with H20, 10% aqueous HCl, saturated NaHC03, and saturated NaCl before being dried (MgS04) and concentrated under reduced pressure. The title compound, 550.0 mg (81%), was isolated by column chromatography (5%> EtOAc-hexanes) as a colorless oil. 'H NMR (CDCI3) δ: 7.35-7.28 (3H, m), 4.64 (2H, s), 2.29 (3H, s), 0.20 (9H, s). 2-Methyl-4-trimethylsilanylethynyl-l-trimethylsilanyloxymethyl-benzene (Intermediate 135) Using General Procedure D; (4-bromo-2-methyl-benzyloxy)- trimethylsilane (Intermediate 134, 550.0 mg, 2.01 mmol) in triethylamine (8 mL) was treated with copper(I)iodide (38.0 mg, 0.20 mmol) and then sparged with argon for 5 minutes. Trimethylsilyl acetylene (1.05 g, 10.6 mmols) was then added followed by dichlorobis(triphenylphosρhine)palladium(II) (142.0 mg, 0.20 mmol). The resulting reaction mixture was heated to 70 °C for 5 days. The title compound (380.0 mg, 65%>) was isolated by chromatography (0 - 2% EtOAc - hexanes) as an orange oil. 'H NMR (CDC13) δ: 7.31 (3H, m), 4.64 (2H, s), 2.24 (3H, s), 0.24 (9H, s), 0.15 (9H, s). (4-Ethynyl-2-methyl-phenyl)-methanol (Intermediate 136) Using General Procedure E; 2-methy 1-4-trimethy lsilanylethyny 1- 1 - trimethylsilananyloxymethyl-benzene (Intermediate 135, 380.0 mg, 1.30 mmols) in methanol (10 mL) was treated with potassium carbonate (180.0 mg, 1.3 mmol) and stirred overnight at ambient temperature. The crude alkyne was purified by column chromatography (5-20%> EtOAc-hexanes) to give 100.0 mg (34%>) of the title compound. 'H NMR (CDCI3) δ: 7.06 (3H, m), 4.42 (2H, d, J = 5.2 Hz), 2.81 (IH, s), 2.05 (3H, s), 1.59 (IH, t, J = 5.2 Hz). Ethyl 4-(4-hvdroxymethy 1-3 -methy 1-pheny lethvnvD-benzoate (Compound 117, General Formula 6) Using General Procedure F; (4-ethynyl-2-methy 1-pheny l)-methanol (Intermediate 136, 100.0 mg, 0.44 mmol) and ethyl-4-iodo benzoate (Reagent A, 125.0 mg, 0.45 mmol) in triethyl amine (4 mL) was treated with copper(I)iodide (29 mg, 0.15 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (102 mg, 0.15 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (20-40%) EtOAc - hexanes) afforded 130.0 mg (99%) of the title compound as an orange solid. 'H NMR (CDCI3) δ: 7.98 (2H, d, J = 8.2 Hz), 7.56 (2H, d, J = 8.2 Hz), 7.36 (3H, m), 4.65 (2H, s), 4.36 (2H, q, J = 7.1 Hz), 2.40 (IH, s), 2.30 (3H, s), 1.39 (3H, t, J = 7.1 Hz). Ethyl 4-(4-bromomethy 1-3 -methy 1-pheny lethynyD-benzoate (Intermediate 137) A solution of ethyl 4-(4-hy droxymethy 1-3 -methy 1-pheny lethynyl)- benzoate (Compound 117, 130.0 mg, 0.44 mmol) and triphenylphosphine (150.0 mg, 0.57 mmol) in 5 mL CH2C12 was cooled to 0 °C and N- bromosuccinimide (101.0 mg, 0.57 mmol) was added in 5 portions over 20 minutes. The solution was warmed to 25 °C and stirred for 17 hours. The reaction was quenched by the addition of dilute aqueous ΝaHC03. The resulting mixture was extracted with El^O and the combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (Na^O and concentrated under reduced pressure. The title compound, 120.0 mg (76%), was isolated by column chromatography (2-5% EtOAc- hexanes) as a colorless solid. 'H NMR (CDC13) δ: 8.01 (2H, d, J = 8.1 Hz), 7.56 (2H, d, J = 8.1 Hz), 7.32 (3H, m), 4.48 (2H, s), 4.38 (2H, q, J = 7.1 Hz), 2.40 (3H, s), 1.39 (3H, t, J = 7.1 Hz). Ethyl 4-(4-imidazol- 1 -yl-methyl-3-methyl-pheny lethynyD-benzoate (Compound 118, General Formula 6) A solution of imidazole (30.0 mg, 0.44 mmol) in 2 mL DMF was treated with NaH (11.0 mg, 0.44 mmol) and heated to 90 °C. After lh a solution of ethyl 4-(4-bromomethy 1-3 -methy 1-pheny lethynyl)-benzoate (Intermediate 137, 120.0 mg, 0.34 mmol) in 2 mL DMF was added and stirring at 90 °C continued for 1 hour. The solution was cooled to room temperature and concentrated under reduced pressure. The title compound, 90.0 mg (71%) was isolated by column chromatography (20-100%) EtOAc- hexanes) as a colorless solid. 'H NMR (CDC13) δ: 8.02 (2H, d, J = 8.5 Hz), 7.57 (2H, d, J = 8.5 Hz), 7.51 (IH, s), 7.40 (IH, s), 7.36 (IH, dd, J = 1.2, 7.9 Hz), 7.10 (IH, s), 6.93 (IH, d, J = 7.9 Hz), 6.88 (IH, t, J = 1.7 Hz), 5.12 (2H, s), 4.38 (2H, q, J = 7.1 Hz), 2.27 (3H, s), 1.40 (3H, t, J = 7.1 Hz). 4-(4-Imidazol- 1-yl-methy 1-3 -methy 1-pheny lethynvD-benzoic acid (Compound 119, General Formula 6) Using General Procedure I; a solution of ethyl 4-(4-imidazol- 1 - ylmethyl-3-methyl-phenylethynyl)-benzoate (Compound 118, 82.0 mg, 0.24 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 51.0 mg (68%>) of the title compound as a solid. 'H NMR (d6-DMSO) δ: 9.20 (IH, s), 7.97 (2H, d, J = 8.2 Hz), 7.73 (2H, m), 7.65 (2H, d, J = 8.2 Hz), 7.52 (IH, s), 7.46 (IH, d, J = 7.9 Hz), 7.13 (IH, d, J = 7.9 Hz), 5.50 (2H, s), 2.32 (3H, s). 4-Bromo- 1 -bromomethy 1-2-methy 1-benzene (Intermediate 138) A solution of (4-bromo-2-methyl-phenyl)-methanol (Intermediate 133, 319.0 mg, 1.58 mmol) and triphenylphosphine (466.0 mg, 1.74 mmol) in 5 mL CH2C12 was cooled to 0 °C and N-bromosuccinimide (309.0 mg, 1.74 mmol) was added in 5 portions over 20 minutes. The solution was warmed to 25 °C and stirred for 17 hours. The reaction was quenched by the addition of dilute aqueous ΝaHC03. The resulting mixture was extracted with Et20 and the combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (NajSO^ and concentrated under reduced pressure. The title compound, 350.0 mg (84%>), was isolated by column chromatography (2-3%> EtOAc-hexanes) as a colorless oil. Η NMR (CDC13) δ: 7.32 (IH, d, J = 2.0 Hz), 7.29 (IH, dd, J = 2.0, 7.9 Hz), 7.15 (IH, d, J = 7.9 Hz), 4.43 (2H, s), 2.37 (3H, s). 1 -(4-Bromo-2-methy 1-benzvD- IH-imidazole (Intermediate 139) A solution of imidazole (58.0 mg, 0.86 mmol) in 3 mL DMF was treated with NaH (20.0 mg, 0.86 mmol) and heated to 90 °C. After lh a solution of 4-bromo- l-bromomethyl-2-methyl-benzene (Intermediate 138, 190.0 mg, 0.72 mmol) in 3 mL DMF was added and stirring at 90 °C continued for lhour. The solution was cooled to room temperature and concentrated under reduced pressure. The title compound, 160.0 mg (88%>) was isolated by column chromatography (5% MeOH-EtOAc) as a colorless solid. 'H NMR (CDC13) δ: 7.46 (IH, s), 7.34 (IH, dd, J = 1.8 Hz), 7.30 (IH, dd, J = 1.8, 8.2 Hz), 7.08 (IH, t, J = 1.2 Hz), 6.83 (IH, t, J = 1.2 Hz), 6.80 (IH, d, J = 8.2 Hz), 5.03 (2H, s), 2.23 (3H, s). 1 -(2-Methyl-4-trimethylsilany lethynyl-benzyD- IH-imidazole (Intermediate 140) Using General Procedure D; l-(4-bromo-2-methyl-benzyl)-lH- imidazole (Intermediate 139, 160.0 mg, 0.64 mmol) in triethylamine (8 mL) was treated with copper(I)iodide (12.0 mg, 0.07 mmol) and then sparged with argon for 5 minutes. Trimethylsilyl acetylene (0.70 g, 0.71 mmols) was then added followed by dichlorobis(triphenylphosphine)palladium(II) (45.0 mg, 0.07 mmol). The resulting reaction mixture was heated to 70 °C for 5 days. The title compound (140.0 mg, 82%) was isolated by chromatography (5% MeOΗ- EtOAc ) as an orange oil. Η NMR (CDCI3) δ: 7.53 (1Η, s), 7.38 (1Η, s), 7.34 (1Η, d, J = 8.0 Ηz), 7.15 (1Η, s), 6.94 (1Η, s), 6.91 (1Η, d, J = 8.0 Ηz), 5.14 (2Η, s), 2.29 (3H, s), 0.31 (9H, s). 1 -(4-Ethvnyl-2-methyl-benzvD- IH-imidazole (Intermediate 141) Using General Procedure E; 1 -(2-methy 1-4-trimethylsilany lethyny 1- benzyl)- IH-imidazole (Intermediate 140, 140.0 mg, 0.53 mmols) in methanol (5 mL) was treated with potassium carbonate (100.0 mg, 0.72 mmol) and stirred overnight at ambient temperature. The crude alkyne (105 mg, 100%)) was used directly in the next reaction. Η NMR (CDC13) δ: 7.49 (1Η, s), 7.35 (1Η, s), 7.31 (1Η, dd, J = 1.7, 7.9 Ηz), 7.10 (1Η, s), 6.69 (1Η, d, J = 7.9 Ηz), 6.85 (1Η, t, J = 1.2 Ηz), 5.14 (2Η, s), 3.08 (IH, s), 2.26 (3H, s). Methyl [4-(4-imidazol-l-yl-methyl-3-methyl-phenylethynyD-phenyl]-acetate (Compound 120, General Formula 6) Using General Procedure F; l-(4-ethynyl-2-methyl-benzyl)-lH- imidazole (Intermediate 141, 101.0 mg, 0.53 mmol) and methyl-(4- iodophenyl)-acetate (Reagent B, 145.0 mg, 0.53 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (34.0 mg, 0.18 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (124 mg, 0.18 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (5%> MeOΗ- EtOAc) afforded 45.0 mg (25%) of the title compound as an orange oil. 'Η NMR (CDC13) δ: 7.47 (3Η, m), 7.35 (3H, m), 7.27 (3H, m), 6.91 (IH, d, J = 7.3 Hz), 5.11 (2H, s), 3.70 (3H, s), 3.64 (2H, s), 2.26 (3H, s). [4-(4-Imidazol- 1 -y 1-methy 1-3 -methy 1-pheny lethyny l)-pheny 11 -acetic acid (Compound 121, General Formula 6) Using General Procedure I; a solution of methyl [4-(4-imidazol-l- ylmethyl-3 -methyl-pheny lethyny l)-phenyl] -acetate (Compound 120, 45.0 mg, 0.13 mmol) in ethanol (2 mL) and tetrahydrofuran (2 mL) was treated with NaOH (80.0 mg, 2.0 mmols, 2.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 30.0 mg (70%) of the title compound as a pale-orange solid. 'H NMR (d4-MeOH) δ: 8.97 (IH, s), 7.60 (2H, d J = 8.8 Hz), 7.47 (3H, m), 7.41 (IH, d, J = 7.9 Hz), 7.30 (2H, d, J = 7.9 Hz), 7.23 (IH, d, J = 7.9 Hz), 5.51 (2H, s), 3.64 (2H, s), 2.33 (3H, s). 1 -Isopropy 1-3 -methoxy-benzene (Intermediate 142) To a solution of 3 -isopropy 1-phenol (5.00 g, 36.2 mmols) in 50 mL of acetone was added K2C03 (7.50 g, 54.3 mmols) and iodomethane (10.3 g, 72.5 mmols). The resulting solution was heated to 50 °C and stirred for 18 hours, cooled to room temperature, and concentrated under reduced pressure. The residual oil was dissolved in E^O and washed with H20, saturated aqueous NaHC03, and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. The crude methyl ether was used without further purification. Η NMR (CDC13) δ: 7.22 (IH, t, J = 8.1 Hz), 6.84-6.72 (3H, m), 3.81 (3H, s), 2.88 (IH, septet, J = 7.0 Hz), 1.25 (6H, d, J = 7.0 Hz). l-Bromo-2-isopropyl-4-methoxy-benzene (Intermediate 143) A mixture of 1 -isopropy 1-3 -methoxy-benzene (Intermediate 142, 3.50 g, 23.3 mmols), molecular sieves, and silica gel in 150 mL CC14 was treated with N-bromosuccinimide (4.98 g, 28.0 mmols) at 35 °C for 18 hours. An additional portion of N-bromosuccinimide (830.0 mg, 4.46 mmols) was added and stirring continued for 6 hours. The mixture was cooled to room temperature, H20 was added, and the mixture was filtered to remove the solids. The mixture was extracted with E20 and the combined organic layers were washed with 10% aqueous HCl, H20, saturated aqueous ΝaHC03, and saturated NaCl before being dried (MgS04) and concentrated under reduced pressure. Column chromatography (2.5%> EtOAc-hexanes) afforded 4.34 g (81%) of the title compound as a pale-yellow oil. 'H NMR (CDC13) δ: 7.41 (IH, d, J = 8.8 Hz), 6.82 (IH, d, J = 2.6 Hz), 6.61 (IH, dd, J = 2.6, 8.8 Hz), 3.79 (3H, s), 3.31 (IH, septet, J = 6.7 Hz), 1.23 (6H, d, J = 6.7 Hz). 4-Bromo-3 -isopropy 1-phenol (Intermediate 144) To a solution of l-bromo-2-isopropyl-4-methoxy-benzene (Intermediate 143, 2.20 g, 9.60 mmols) in 50 mL CH2C12 at -78 °C was added BBr3 (4.81 g, 19.2 mmols; 19.2 mL of a IM solution in CH2C12). After stirring for 3 hours at -78 °C the solution was warmed to 0 °C for 3 hours and then at 25 °C for 1 hour before being quenched with H20. The mixture was diluted with Et^O and washed with H20 and saturated aqueous NaCl, dried (Na^O,^ and concentrated under reduced pressure. Column chromatography (2.5-10%o EtOAc-hexanes) afforded the title compound as a colorless oil. Η NMR (CDC13) δ: 7.38 (IH, d, J = 8.5 Hz), 6.79 (IH, d, J = 2.9 Hz), 6.57 (IH, dd, J = 2.9, 8.5 Hz), 3.31 (IH, septet, J = 7.0 Hz), 1.22 (6H, d, J = 7.0 Hz). (4-Bromo-3-isopropyl-phenoxy)-tgrt-butyl-dimethyl-silane (Intermediate 145) A solution of 4-bromo-3-isopropyl-phenol (Intermediate 144, 1.13 g, 5.25 mmols), chloro-tgrt-butyl-dimethylsilane (0.95 g, 6.30 mmols), and imidazole (428.0 mg, 6.3 mmols) in 10 mL DMF was stirred at 25 °C for 3 hours. The solution was diluted with H20 and extracted with Et^O and the combined organic layers were washed with H20, saturated aqueous NaCl, and dried (MgS04) before being concentrated under reduced pressure. Column chromatography (1-2% EtOAc-hexanes) afforded 1.50 g (87%) of the title compound as a colorless oil. 'H NMR (CDC13) δ: 7.32 (IH, d, J = 8.8 Hz), 6.73 (IH, d, J = 3.0 Hz), 6.52 (IH, dd, J - 3.0, 8.8 Hz), 3.26 (IH, septet, J = 6.7 Hz), 1.19 (6H, d, J = 6.7 Hz), 0.96 (9H, s), 0.17 (6H, s). 4-( grt-butyl-dimethyl-silanyloxy)-2-isopropyl-benzaldehyde (Intermediate 146) A solution of (4-bromo-3 -isopropy l-phenoxy)-tgrt-butyl-dimethyl- silane (Intermediate 145, 1.03 g, 3.13 mmols) in 25 mL E20 was cooled to -78 °C and treated with tgrt-butyllithium (401.0 mg, 6.26 mmols; 3.7 mL of a 1.7M solution in pentane). After 30 minutes the reaction was quenched with DMF (913.0 mg, 12.5 mmols) and warmed to room temperature. The solution was diluted with H20, extracted with El^O and the combined organic layers washed with H20 and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. Column chromatography (2% EtOAc-hexanes) afforded 480.0 mg (55%) of the title compound as a colorless oil. 'H NMR (CDCI3) δ: 10.19 (IH, s), 7.72 (IH, d, J = 8.5 Hz), 6.85 (IH, d, J = 2.3 Hz), 6.77 (IH, dd, J = 2.3, 8.5 Hz), 3.97 (IH, septet, J = 6.7 Hz), 1.27 (6H, d, J = 6.7 Hz), 1.00 (9H, s), 0.25 (6H, s). 4-Hvdroxy-2-isopropyl-benzaldehyde (Intermediate 147) To a solution of 4-(tgrt-butyl-dimethyl-silanyloxy)-2-isopropyl- benzaldehyde (Intermediate 146, 880.0 mg, 3.17 mmols) in 6 mL THF at 0 °C was added tetrabutylammonium fluoride (1.66 g, 6.33 mmols; 6.3 mL of a IM solution in THF). The pale-yellow solution was stirred for 30 minutes and quenched by the addition of ice cold H20. The mixture was extracted with Eφ and the combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (NajSO^ and concentrated under reduced pressure. Column chromatography (20%> EtOAc-hexanes) afforded 500.0 mg (96%>) of the title compound as a colorless solid. Η NMR (CDC13) δ: 10.15 (IH, s), 7.79 (IH, d, J = 8.5 Hz), 6.95 (IH, d, J = 2.3 Hz), 6.86 (IH, dd, J = 2.3, 8.5 Hz), 3.96 (IH, septet, J = 6.7 Hz), 1.29 (6H, d, J = 6.7 Hz). 4-Formyl-3 -isopropy 1-pheny 1 1.1.1 -trifluoro-methansulfonate (Intermediate 148) A solution of 4-hydroxy-2-isopropyl-benzaldehyde (Intermediate 147, 300.0 mg, 1.83 mmol) in 10 mL of CH2C12 was cooled to 0 °C and to it was added 2-[N,N-bis(trifluoromethylsulfonyl)amino]-5-chloropyridine (754.0 mg, 1.92 mmol) and triethylamine (592.0 mg, 5.85 mmols). The resulting solution was warmed to room temperature and stirred for 4.5 hours. The reaction was quenched by the addition of H20 and the mixture extracted with EtOAc and the combined organic layers were washed with 10%o aqueous HCl, saturated aqueous NaHC03, H20, and saturated aqueous NaCl. The solution was dried (MgS04) and concentrated under reduced pressure. The title compound was isolated by column chromatography (5- 10% EtOAc-hexanes) as a colorless oil, 470.0 mg (87%). Η NMR (CDC13) δ: 10.37 (IH, s), 7.94 (IH, d, J = 8.5 Hz), 7.33 (IH, d, J = 2.3 Hz), 7.26 (IH, dd, J = 2.3, 8.5 Hz), 4.00 (IH, septet, J = 6.7 Hz), 1.33 (6H, d, J = 6.7 Hz), 4-Hvdroxymethy 1-3 -isopropy 1-pheny 1 1.1,1 -trifluoro-methansulfonate (Intermediate 149) To a solution of 4-formyl-3-isopropyl-phenyl 1,1,1 -trifluoro- methansulfonate (Intermediate 148, 540.0 mg, 1.82 mmols) in 7 mL MeOH at 0 °C was added NaBH4 (72.0 mg, 1.91 mmols). After stirring 2 hours at 0 °C the reaction was carefully quenched with H20 and extracted with Et20. The combined organic layers were washed with H20 and saturated aqueous NaCl, dried (MgS04), and concetrated under reduced pressure. The title compound was isolated by column chromatography (5- 10% EtOAc-hexanes) as a colorless oil, 355.0 mg (90%). 'H NMR (CDC13) δ: 7.45 (IH, d, J = 8.5 Hz), 7.17 (IH, d, J = 2.7 Hz), 7.08 (IH, dd, J = 2.7, 8.5 Hz), 4.74 (2H, d, J = 5.3 Hz), 3.21 (IH, septet, J = 7.0 Hz), 2.12 (IH, t, J = 5.3 Hz), 1.24 (6H, d, J = 7.0 Hz). 4-(Igrt-buty 1-dimethy 1-silany loxymethvD-3 -isopropyl-phenyl 1.1.1- trifluoro-methansulfonate (Intermediate 150) A solution of 4-hy droxymethy 1-3 -isopropy 1-pheny 1 1,1,1 -trifluoro- methansulfonate (Intermediate 149, 760.0 mg, 2.55 mmols), chloro-tgrt- butyl-dimethylsilane (470.0 mg, 3.18 mmols), and imidazole (225.0 mg, 3.25 mmols) in 6 mL DMF was stirred at 25 °C for 17 hours. The solution was diluted with H20 and extracted with E^O and the combined organic layers were washed with 10%o aqueous FIC1, saturated aqueous NaHC03, H20, and saturated aqueous NaCl, and dried (MgS04) before being concentrated under reduced pressure. Column chromatography (2-5% EtOAc-hexanes) afforded 970.0 mg (92%) of the title compound as a colorless oil. 'H NMR (CDC13) δ: 7.49 (IH, d, J = 8.5 Hz), 7.10 (IH, d, J = 2.3 Hz), 7.06 (IH, dd, J - 2.3, 8.5 Hz), 4.75 (2H, s), 3.10 (IH, septet, J = 6.7 Hz), 1.21 (6H, d, J = 6.7 Hz), 0.93 (9H, s), 0.10 (6H, s). l-(7grt-butyl-dimethyl-silanyloxymethyl)-2-isopropyl-4- trimethylsilanylethynyl-benzene (Intermediate 151) To a solution of 4-(tgrt-butyl-dimethyl-silanyloxymethyl)-3- isopropyl-phenyl 1,1,1 -trifluoro-methansulfonate (Intermediate 150, 970.0 mg, 2.35 mmols) in triethylamine (2 mL) and 6 mL DMF was sparged with argon for 15 minutes. Trimethylsilyl acetylene (1.00 g, 10.6 mmols) was then added followed by dichlorobis(triphenylphosphine)palladium(II) (66.0 mg, 0.09 mmol). The resulting reaction mixture was heated to 95 °C for 20 hours. The solution was cooled to room temperature and concentrated under reduced pressure. The title compound (200.0 mg, 78%>) was isolated by chromatography (0-25%> EtOAc-hexanes) as an orange oil. Η NMR (CDC13) δ: 7.37-7.25 (3H, m), 4.75 (2H, s), 3.08 (IH, septet, J = 7.0 Hz), 1.21 (6H, d, J = 7.0 Hz), 0.92 (9H, s), 0.25 (9H, s), 0.09 (6H, s). 7grt-butyl-(4-ethynyl-2-isopropyl-benzyloxy)-dimethyl-silane (Intermediate 152) Using General Procedure E; l-(tgrt-butyl-dimethyl- silanyloxymethyl)-2-isopropyl-4-trimethylsilanylethynyl-benzene (Intermediate 151, 850.0 mg, 2.36 mmols) in methanol (25 mL) was treated with potassium carbonate (250.0 mg, 1.81 mmols) and stirred overnight at ambient temperature. The crude alkyne (650 mg, 95 %>) was used directly in the next reaction. 'H NMR (CDC13) δ: 7.41-7.25 (3H, m), 4.77 (2H, s), 3.07 (IH, septet, J = 7.0 Hz), 3.05 (IH, s), 1.22 (6H, d, J = 7.0 Hz), 0.94 (9H, s), 0.11 (6H, s). Ethyl 4-[4-(tgrt-butyl-dimethyl-silanyloxymethyl)-3-isopropyl- pheny lethyny 1] -benzoate (Intermediate 153) Using General procedure F; tgrt-butyl-(4-ethynyl-2-isopropyl- benzyloxy)-dimethyl-silane (Intermediate 152, 300.0 mg, 1.04 mmols) and ethyl-4-iodo benzoate (Reagent A, 287.0 mg, 1.04 mmols) in triethylamine (8mL) was treated with copper(I)iodide (50.0 mg, 0.26 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (182 mg, 0.26 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc - hexanes) afforded 310.0 mg (68%>) of the title compound as an orange solid. . 'H NMR (CDC13) δ: 8.03 (2H, d, J = 8.5 Hz), 7.60 (2H, d, J = 8.5 Hz), 7.48- 7.37 (3H, m), 4.80 (2H, s), 4.39 (2H, q, J = 7.1 Hz), 3.14 (IH, septet, J = 6.8 Hz), 1.40 (3H, t, J = 7.1 Hz), 1.27 (6H, d, J = 6.8 Hz), 0.96 (9H, s), 0.12 (6H, s). Methyl {4-[4-(tgrt-butyl-dimethyl-silanyloxymethyD-3-isopropyl- pheny lethyny 1] -phenyl } -acetate (Intermediate 154) Using General Procedure F; tgrt-butyl-(4-ethynyl-2-isopropyl- benzyloxy)-dimethyl-silane (Intermediate 152, 355.0 mg, 1.26 mmols) and methyl-(4-iodophenyl)-acetate (Reagent B, 349.0 mg, 1.26 mmols) in triethylamine (8 mL) was treated with copper(I)iodide (60.0 mg, 0.32 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (222 mg, 0.32 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-5% EtOAc-hexanes) afforded 288.0 mg (66%>) of the title compound as an orange oil. 'H NMR (CDC13) δ: 7.49 (2H, d, J = 8.5 Hz), 7.43-7.35 (3H, m), 7.25 (2H, d, J = 8.5 Hz), 4.77 (2H, s), 3.69 (3H, s), 3.63 (2H, s), 3.11 (IH, septet, J = 6.7 Hz), 1.25 (6H, d, J = 6.7 Hz), 0.94 (9H, s), 0.10 (6H, s). Ethyl [4-(4-hy droxymethy 1-3 -isopropy 1-pheny lethyny D-benzoate (Compound 122, General Formula 6) To a solution of ethyl 4-[4-(tgrt-butyl-dimethyl-silanyloxymethyl)-3- isopropyl-phenylethynylj-benzoate (Intermediate 153, 310.0 mg, 0.71 mmol) in 4 mL THF at 0 °C was added tetrabutylammonium fluoride (371.0 mg, 1.42 mmols; 1.4 mL of a IM solution in THF). The pale-yellow solution was stirred for 10 minutes and quenched by the addition of ice cold H20. The mixture was extracted with Et20 and the combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (N-^SO^ and concentrated under reduced pressure. Column chromatography (20-30% EtOAc-hexanes) afforded 200.0 mg (87%) of the title compound as a colorless solid. 'H NMR (CDC13) δ: 7.98 (2H, d, J = 8.5 Hz), 7.58 (2H, d, J = 8.5 Hz), 7.48 (IH, s), 7.35 (2H, m), 4.71 (2H, s), 4.35 (2H, q, J = 7.1 Hz), 3.19 (IH, septet, J = 7.0 Hz), 2.51 (IH, s), 1.39 (3H, t, J = 7.1 Hz), 1.25 (6H, d, J = 7.0 Hz). Methyl [4-(4-hydroxymethyl-3-isopropyl-phenylethynyl)-phenyl]-acetate (Compound 123, General Formula 6) To a solution of methyl (4-[4-(tgrt-butyl-dimethyl-silanyloxymethyl)- 3-isopropyl-phenylethynyl]-phenyl}-acetate (Intermediate 154, 288.0 mg, 0.66 mmol) in 5 mL THF at 0 °C was added tetrabutylammonium fluoride (471.0 mg, 1.80 mmols; 1.8 mL of a IM solution in THF). The pale-yellow solution was stirred for 15 minutes and quenched by the addition of ice cold H20. The mixture was extracted with El^O and the combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (Na2S04) and concentrated under reduced pressure. Column chromatography (5-10% EtOAc-hexanes) afforded 180.0 mg (85%) of the title compound as a colorless solid. Η NMR (CDCI3) δ: 7.48 (3H, m), 7.32 (2H, m), 7.24 (2H, d, J = 8.5 Hz), 4.69 (2H, s), 3.68 (3H, s), 3.62 (2H, s), 3.18 (IH, septet, J = 7.0 Hz), 2.21 (IH, s), 1.25 (6H, d, J = 7.0 Hz). Ethyl [4-(4-bromomethy 1-3 -isopropy 1-pheny lethyny D-benzoate (Intermediate 155) A solution of ethyl [4-(4-hydroxymethyl-3-isopropyl-phenylethynyl)- benzoate (Compound 122, 200.0 mg, 0.62 mmol) and triphenylphosphine (211.0 mg, 0.81 mmol) in 5 mL CH2C12 was cooled to 0 °C and N- bromosuccinimide (144.0 mg, 0.81 mmol) was added in 5 portions over 20 minutes. The solution was warmed to 25 °C and stirred for 17 hours. The reaction was quenched by the addition of dilute aqueous ΝaHC03. The resulting mixture was extracted with Et20 and the combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (Na2S04) and concentrated under reduced pressure. The title compound, 220.0 mg (93%), was isolated by column chromatography (5%> EtOAc- hexanes) as a pale-yellow solid. Η NMR (CDC13) δ: 8.03 (2H, d, J = 8.2 Hz), 7.59 (2H, d, J = 8.2 Hz), 7.48 (IH, s), 7.31 (2H, m) 4.55 (2H, s), 4.39 (2H, q, J = 7.1 Hz), 3.29 (IH, septet, J = 7.0 Hz), 1.40 (3H, t, J = 7.1 Hz), 1.30 (6H, d, J = 7.0 Hz). Methyl [4-(4-bromomethy 1-3 -isopropy 1-pheny lethyny D-pheny 1] -acetate (Intermediate 156) A solution of methyl [4-(4-hydroxymethyl-3-isopropyl- phenylethynyl)-phenyl]-acetate (Compound 123, 180.0 mg, 0.56 mmol) and triphenylphosphine (190.0 mg, 0.73 mmol) in 5 mL CH2C12 was cooled to 0 °C and N-bromosuccinimide (130.0 mg, 0.73 mmol) was added in 5 portions over 20 minutes. The solution was warmed to 25 °C and stirred for 17 hours. The reaction was quenched by the addition of dilute aqueous ΝaHC03. The resulting mixture was extracted with Et20 and the combined organic layers were washed with H20 and saturated aqueous NaCl before being dried
Figure imgf000220_0001
and concentrated under reduced pressure. The title compound, 212.0 mg (98%>), was isolated by column chromatography (5- 10% EtOAc-hexanes) as a pale-yellow oil. 'H NMR (CDC13) δ: 7.48 (3H, m), 7.28 (4H, m), 4.55 (2H, s), 3.69 (3H, s), 3.63 (2H, s), 3.28 (IH, septet, J = 7.0 Hz), 1.30 (6H, d, J = 7.0 Hz). Ethyl [4-(4-imidazol- 1 -yl-methyl-3-isopropyl-phenylethynyl)-phenyl]- benzoate (Compound 124, General Formula 6) A solution of ethyl [4-(4-bromomethy 1-3 -isopropy 1-pheny lethyny 1)- benzoate (Intermediate 155, 120.0 mg, 0.31 mmol) and 1 -acetylimidazole (36.0 mg, 0.33 mmol) in 5 mL CH3CN was heated at 65 °C for 4 hours and then at 55 °C for 16 hours. The solution was cooled to room temperature, diluted with H20 and made basic by addition of Na2C03, and extracted with EtOAc. The combined organic layers were washed with H20 and saturated aqueous NaCl, dried (MgS04), and concentrated under reduced pressure. Column cliromatography (1% Et3N in 5% MeOH-EtOAc) afforded 75.0 mg (65%) of the title compound as a colorless solid. 'H NMR (CDC13) δ: 8.03 (2H, d, J = 8.5 Hz), 7.60 (2H, d, J = 8.5 Hz), 7.53 (IH, d, J = 1.5 Hz), 7.49 (IH, s), 7.35 (IH, dd, J = 1.5, 7.9 Hz), 7.09 (IH, bs), 6.98 (IH, d, J = 7.9 Hz), 6.85 (IH, bs), 5.19 (2H, s), 4.39 (2H, q, J = 7.1 Hz), 3.08 (IH, septet, J = 6.8 Hz), 1.40 (3H, t, J = 7.1 Hz), 1.20 (6H, d, J = 6.8 Hz). Methyl [4-(4-imidazol- 1 -y 1-methy 1-3 -isopropy 1-pheny lethyny D-phenyl] - acetate (Compound 125, General Formula 6) A solution of methyl [4-(4-bromomethy 1-3 -isopropy 1-pheny lethyny 1)- phenyl] -acetate (Intermediate 156, 72.0 mg, 0.19 mmol) and 1- acetylimidazole (22.0 mg, 0.20 mmol) in 5 mL CH3CN was heated at 65 °C for 8h and then at 55 °C for 16 hours. The solution was cooled to room temperature, diluted with H20 and made basic by addition of Na2C03, and extracted with EtOAc. The combined organic layers were washed with H20 and saturated aqueous NaCl, dried (MgS04), and concentrated under reduced pressure. Column chromatography (0.5%> Et3N in 5%> MeOH- EtOAc) afforded 40.0 mg (58%>) of the title compound as a colorless solid. 'H NMR (CDC13) δ: 7.49 (4H, m), 7.33 (IH, dd, J = 1.5, 7.9 Hz), 7.28 (2H, d, J = 8.5 Hz), 7.08 (IH, t, J = 1.2 Hz), 6.95 (IH, d, J = 7.9 Hz), 6.84 (IH, t, J = 1.2 Hz), 5.17 (2H, s), 3.70 (3H, s), 3.64 (2H, s), 3.06 (IH, septet, J = 6.8 Hz), 1.20 (6H, d, J = 6.8 Hz). [4-(4-Imidazol- 1 -y 1-methv 1-3 -isopropy 1-pheny lethynvD-pheny 1] -benzoic acid (Compound 126, General Formula 6) Using General Procedure I; a solution of ethyl [4-(4-imidazol- 1 - ylmethyl-3-isopropyl-phenylethynyl)-phenyl]-benzoate (Compound 124, 75.0 mg, 0.20 mmol) in ethanol (4 mL) and tetrahydrofuran (1 mL) was treated with NaOH (120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 68.0 mg (88%) of the title compound as a colorless solid. 'H NMR (d4-MeOH) δ: 9.01 (IH, s), 8.01 (2H, d, J = 8.2 Hz), 7.63-7.57 (5H, m), 7.44 (IH, d, J = 7.9 Hz), 7.29 (IH, d, J = 7.9 Hz), 5.59 (2H, s), 3.17 (IH, septet, J = 6.8 Hz), 1.20 (6H, d, J = 6.8 Hz). [4-(4-Imidazol-l-yl-methyl-3-isopropyl-phenylethynyl)-phenyl]-acetic acid (Compound 127, General Formula 6) Using General Procedure I; a solution of methyl [4-(4-imidazol- 1 - ylmethyl-3-isopropyl-phenylethynyl)-phenyl]-acetate (Compound 125, 40.0 mg, 0.11 mmol) in ethanol (4 mL) and tetrahydrofuran (1 mL) was treated with NaOH (120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 22.0 mg (52%o) of the title compound as a colorless solid. 'H NMR (d4-MeOH) δ: 9.02 (IH, bs), 7.62 (IH, t, J = 1.4 Hz), 7.58 (2H, m), 7.49 (2H, d, J = 8.2 Hz), 7.43 (IH, dd, J = 1.5, 7.9 Hz), 7.31 (3H, m), 5.58 (2H, s), 3.68 (2H, s), 3.16 (IH, septet, J = 6.7 Hz), 1.18 (6H, d, J = 6.7 Hz). 4-Bromo-N-cyclopropyl-2-methyl-benzamide (Intermediate 157) A solution of 4-bromo-2-methylbenzoic acid and SOCl2 was refluxed for 3 hours, cooled to room temperature and concentrated under reduced pressure. The residue was dissolved in 30 mL CH2C12 and combined with cyclopropyl amine (810.0 mg, 14.3 mmols) and pyridine (2.05 g, 26.0 mmols). The solution was stirred for 18 hours and then diluted with EtOAc before being washed with 5% aqueous HCl, saturated ΝaHC03, and saturated aqueous NaCl. The solution was dried (MgS04) and concentrated under reduced pressure leaving the title compound as a colorless solid. Η NMR (CDC13) δ: 7.34 (IH, d, J = 2.3 Hz), 7.28 (IH, dd, J = 2.3, 8.2 Hz), 7.13 (IH, d, J = 8.2 Hz), 6.10 (IH, bs), 2.85 (IH, m), 2.37 (3H, s), 0.85 (2H, m), 0.59 (2H, m). (4-Bromo-2-methyl-benzyl)-cyclopropyl-amine (Intermediate 158) To a solution of 4-bromo-N-cy clopropy 1-2-methyl-benzamide (Intermediate 157, 1.81 g, 7.12 mmols) in THF (12 mL) was added BH3«SMe2 (1.08 g, 14.24 mmols). The solution was heated to 60 °C for 6 hours, cooled to room temperature and carefully treated with saturated aqueous Νa2C03 (30 mL) and stirred for 17 hours. This mixture was extracted with EtOAc and the combined organic layers were washed with H20, saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. The title compound was isolated by column chromatography (10-15% EtOAc-hexanes). 'H NMR (CDCI3) δ: 7.26 (2H, m), 7.12 (IH, d, J = 7.9 Hz), 3.76 (2H, s), 2.31 (3H, s), 2.14 (IH, m), 0.44 (2H, m), 0.36 (2H, m). (4-Bromo-2-methyl-benzyl)-cvcloproρyl-ethyl-amine (Intermediate 159) A mixture of (4-bromo-2-methyl-benzyl)-cy clopropy 1-amine (Intermediate 158, 600.0 mg, 2.49 mmols), ethyl iodide (1.56 g, 10.0 mmols), and K2C03 (690.0 mg, 5.00 mmols) in 10 mL acetone was heated at 60 °C for 18 hours. The mixture was cooled to room temperature, diluted with H20, and extracted with EtOAc. The combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. The title compound was isolated by column chromatography (2.5%> EtOAc-hexanes). 'H NMR (CDC13) δ: 7.23 (2H, m), 7.12 (IH, d, J = 7.6 Hz), 3.62 (2H, s), 2.56 (2H, q, J = 7.3 Hz), 2.29 (3H, s), 1.75 (IH, m), 1.04 (3H, t, J = 7.3 Hz), 0.39 (2H, m), 0.30 (2H, m). Cyclopropyl-ethyl-(2-methyl-4-trimethylsilanylethvnyl-benzyl)-amine (Intermediate 160) Using General Procedure D; (4-bromo-2-methyl-benzyl)- cyclopropyl-ethyl-amine (Intermediate 159, 620.0 mg, 2.31 mmols) in triethylamine (8 mL) was treated with copper(I)iodide (44.0 mg, 0.23 mmol) and then sparged with argon for 15 minutes. Trimethylsilylacetylene (1.04 g, 10.6 mmols) was then added followed by dichlorobis- (triphenylphosphine)palladium(II) (162.0 mg, 0.23 mmol). The resulting reaction mixture was heated to 70 °C for 5 days. The title compound (650.0 mg, 98%o) was isolated by chromatography (l-4%> EtOAc - hexanes). 'H NMR (CDCI3) δ: 7.32 (IH, s), 7.20 (2H, m), 3.65 (2H, s), 2.55 (2H, q, J = 7.3 Hz), 2.28 (3H, s), 1.74 (IH, m), 1.03 (3H, t, J = 7.3 Hz), 0.36 (2H, m), 0.27 (2H, m), 0.24 (9H, s). Cvclopropyl-ethyl-(4-ethynyl-2-methyl-benzyl)-amine (Intermediate 161) Using General Procedure E; cyclopropyl-ethyl-(2-methyl-4- trimethylsilanylethynyl-benzyl)-amine (Intermediate 160, 650.0 mg, 2.30 mmols) in methanol (lOmL) was treated with potassium carbonate (100.0 mg, 0.72 mmol) and stirred overnight at ambient temperature. The crude alkyne (495 mg, 99%) was used directly in the next reaction. 'H NMR (CDC13) δ: 7.32 (IH, s), 7.21 (2H, m), 3.66 (2H, s), 3.01 (IH, s), 2.56 (2H, q, J = 7.3 Hz), 2.29 (3H, s), 1.76 (IH, m), 1.04 (3H, t, J = 7.3 Hz), 0.40 (2H, m), 0.29 (2H, m). Ethyl 4-{4-[(cyclopropyl-ethyl-amino)-methyl]-3-methyl-phenylethynyl>- benzoate (Compound 128, General Formula 6) Using General Procedure F; cy clopropy l-ethyl-(4-ethynyl-2-methyl- benzyl)-amine (Intermediate 161, 190.0 mg, 0.89 mmol) and ethyl-4-iodo benzoate (Reagent A, 245.0 mg, 0.89 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (56.0 mg, 0.30 mmol) and sparged with argon for 15 minutes. Dichlorobis(triphenylphosphine)-palladium(II) (208 mg, 0.30 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (3-5% EtOAc - hexanes) afforded the title compound. Η NMR (CDC13) δ: 8.01 (2H, d, J = 8.2 Hz), 7.56 (2H, d, J = 8.2 Hz), 7.31- 7.24 (3H, m), 4.38 (2H, q, J = 7.1 Hz), 3.68 (2H, s), 2.58 (2H, q, J = 7.3 Hz), 2.32 (3H, s), 1.77 (IH, m), 1.39 (3H, t, J = 7.1 Hz), 1.05 (3H, t, J = 7.3 Hz), 0.39 (2H, m), 0.31 (2H, m). Methyl (4-f4-[(cyclopropyl-ethyl-amino)-methyl1-3-ιnethyl-phenylethvnyl - phenyD-acetate) (Compound 129, General Formula 6) Using General Procedure F; cy clopropy l-ethyl-(4-ethynyl-2-methyl- benzyl)-amine (Intermediate 161, 300.0 mg, 1.41 mmols) and methyl-(4- iodophenyl)-acetate (Reagent B, 388.0 mg, 1.41 mmols) in triethylamine (8 mL) was treated with copper(I)iodide (67.0 mg, 0.35 mmol) and sparged with argon for 15 minutes. Dichlorobis(triphenylphosphine)palladium(II) (246 mg, 0.35 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (5-7% EtOAc - hexanes) afforded 270.0 mg (53%o) of the title compound as a pale-yellow oil. 'H NMR (CDC13) δ: 7.47 (2H, d, J = 7.9 Hz), 7.30-7.22 (5H, m), 3.70 (3H, s), 3.68 (2H, s), 3.63 (2H, s), 2.58 (2H, q, J = 7.3 Hz), 2.32 (3H, s), 1.77 (IH, m), 1.05 (3H, t, J = 7.3 Hz), 0.39 (2H, m), 0.30 (2H, m). 4-{4-[(Cyclopropyl-ethyl-amino)-methyl]-3-methyl-phenylethynyl>-benzoic acid: (Compound 130, General Formula 6) Using General Procedure I; a solution of ethyl 4-{4-[(cyclopropyl- ethyl-amino)-methyl]-3-methyl-phenylethynyl}-benzoate (Compound 128, 130.0 mg, 0.36 mmol) in ethanol (5 mL) and tetrahydrofuran (5 mL) was treated with NaOH (360.0 mg, 9.0 mmols, 3.0 mL of a 3N aqueous solution) and stirred overnight at room temperature. Work-up afforded 115.0 mg (96%) of the title compound as a colorless solid. 'H NMR (d6-acetone) δ: 8.05 (2H, d, J = 8.2 Hz), 7.64 (2H, d, J = 8.2 Hz), 7.32 (3H, m), 3.73 (2H, s), 2.59 (2H, q, J = 7.3 Hz), 2.35 (3H, s), 1.83 (IH, m), 1.05 (3H, t, J = 7.3 Hz), 0.38 (2H, m), 0.27 (2H, m). (4-(4-[(Cyclopropyl-ethyl-amino)-methyl]-3-methyl-phenylethynyl>- pheny -acetic acid (Compound 131, General Formula 6) Using General Procedure I; a solution of methyl (4-{4-[(cyclopropyl- ethyl-amino)-methyl]-3 -methy 1-pheny lethyny l}-phenyl)-acetate (Compound 129, 140.0 mg, 0.39 mmol) in ethanol (5 mL) and tetrahydrofuran (5 mL) was treated with NaOH (360.0 mg, 9.0 mmols, 3.0 mL of a 3N aqueous solution) and stirred overnight at room temperature. Work-up followed by HPLC (Partisil- 10 pac 10% H20-CH3CN) afforded the title compound. Η NMR (CDC13) δ: 7.45 (2H, d, J = 8.2 Hz), 7.25 (5H, m), 4.16 (2H, m), 3.82 (2H, s), 3.56 (2H, s), 2.75 (2H, q, J = 7.3 Hz), 2.30 (3H, s), 1.86 (IH, m), 1.14 (3H, t, J = 7.3 Hz), 0.54 (2H, m), 0.46 (2H, m). Ethyl {4-(4-cyclopropylaminomethyl-3-isopropyl-phenylethynyl}-benzoate (Compound 132, General Formula 6) A solution of ethyl [4-(4-bromomethy 1-3 -isopropy 1-pheny lethyny 1)- benzoate (Intermediate 155, 110.0 mg, 0.29 mmol) and cyclopropylamine (420.0 mg, 7.4 mmols) in EtOH (5 mL) was stirred at 25 °C for 6 hours and then concentrated under reduced pressure. The residue was dissolved in EtOAc and washed with saturated aqueous NaHC03, H20 and saturated aqueous NaCl. The solution was dried (MgS04) and concentrated under reduced pressure to give 103 mg (99%) of the title compound as an orange oil. IH NMR (CDC13) δ: 8.01 (2H, d, J = 8.5 Hz), 7.59 (2H, d, J = 8.5 Hz), 7.47 (IH, s), 7.30 (2H, m), 4.38 (2H, q, J = 7.1 Hz), 3.89 (2H, s), 3.26 (IH, septet, J = 7.0 Hz), 2.17 (IH, m), 1.40 (3H, t, J = 7.1 Hz), 1.26 (6H, d, J = 7.0 Hz), 0.45 (2H, m), 0.39 (2H, m). Ethyl 4- {4- [(cyclopropy 1-ethy l-amino)-methyl]-3 -isopropy 1-pheny lethyny 1 } - benzoate (Compound 133, General Formula 6) To a solution of ethyl {4-(4-cyclopropylaminomethyl-3-isopropyl- pheny lethyny 1} -benzoate (Compound 132, 103.0 mg, 0.29 mmol) in 6 mL of acetone was added ethyl iodide (67.0 mg, 0.43 mmol) and K2C03 (79.0 mg, 0.57 mmol). The mixture was stirred at 60 °C for 6 hours, cooled to room temperature and quenched by the addition of H20. The mixture was extracted with EtOAc and the combined organic layers were washed with H20 and saturated aqueous NaCl before being dried (MgS04) and concentrated under reduced pressure. Column chromatography (4-5%> EtOAc - hexanes) afforded 68.0 mg (59%>) of the title compound. 'H NMR (CDC13) δ: 8.01 (2H, d, J = 8.6 Hz), 7.58 (2H, d, J = 8.6 Hz), 7.44 (IH, s), 7.28 (2H, m), 4.39 (2H, q, J = 7.1 Hz), 3.73 (2H, s), 3.55 (IH, septet, J = 6.6 Hz), 2.57 (2H, q, J = 7.3 Hz), 1.75 (IH, m), 1.40 (3H, t, J = 7.1 hz), 1.22 (6H, d, J = 6.6 Hz), 1.05 (3H, t, J = 7.3 Hz), 0.37 (2H, m), 0.28 (2H, m). 4-{4-[(Cyclopropyl-ethyl-amino)-methyl]-3-isopropyl-phenylethynyl}- benzoic acid (Compound 134, General Formula 6) Using General Procedure I; a solution of ethyl 4-{4-[(cyclopropyl- ethyl-amino)-methyl]-3-isopropyl-phenylethynyl}-benzoate (Compound 133, 68.0 mg, 0.17 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (600.0 mg, 15.0 mmols, 3.0 mL of a 5N aqueous solution) and stirred overnight at room temperature and then at 55 °C for 9 hours. Work-up followed by crystallization of the solid residue from hot CH3CN afforded 45.0 mg (72%) of the title compound as a pale-yellow solid. Η NMR (d6-acetone) δ: 8.05 (2H, d, J = 8.1 Hz), 7.66 (2H, d, J = 8.1 Hz), 7.49 (IH, s), 7.32 (2H, m), 3.78 (2H, s), 3.44 (IH, septet, J = 6.7 Hz), 2.59 (2H, q, J = 7.3 Hz), 1.80 (IH, m), 1.21 (6H, d, J = 6.7 Hz), 1.05 (3H, t, J = 7.3 Hz), 0.40 (2H, m), 0.26 (2H, m). Methyl [4-(8.8-dimethyl-5-oxo-5.6.7.8-tetrahvdro-naρhthalen-2-yl-ethynyl)- phenyll-acetate (Compound 4. General Formula 8) Using General Procedure F; 6-ethyny 1-4,4-dimethy 1-3, 4-dihy dro-2H- naphthalen-1-one (Intermediate 13, 190.0 mg, 0.96 mmol) and methy l-(4- iodophenyl)-acetate (Reagent B, 245.0 mg, 0.96 mmol) in triethyl amine (8 mL) was treated with copper(I)iodide (46 mg, 0.24 mmol) and sparged with argon for 15 minutes. Dichlorobis(triphenylphosphine)palladium(II) (168 mg, 0.24 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (10-20%) EtOAc - hexanes) afforded 250.0 mg (75%) of the title compound as a pale-yellow solid. Η NMR (CDC13) δ: 7.99 (IH, d, J = 7.9 Hz), 7.57 (IH, d, J = 1.5 Hz), 7.51 (2H, d, J = 8.5 Hz), 7.43 (IH, dd, J = 1.5, 7.9 Hz), 7.29 (2H, d, J = 8.5 Hz), 3.70 (3H, s), 3.65 (2H, s), 2.73 (2H, t, J = 7.0 Hz), 2.04 (2H, t, J = 7.0 Hz), 1.41 (6H, s). Methyl [4-(5-hydroxy-8.8-dimethyl-5.6.7.8-tetrahvdro-naphthalen-2-yl- ethyny l)-pheny 1] -acetate (Compound 135, General Formula 4) To a solution of methyl [4-(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro- naphthalen-2-yl-ethynyl)-phenyl]-acetate (Compound 4) in 5 mL MeOH at 0 °C was added NaBH4 (18.0 mg, 0.48 mmol). The reaction was stirred at 0 °C for 2 hours and then quenched by the addition of H20. The solution was diluted with Et20 and washed with H20 and saturated aqueous NaCl before being dried (MgS04) and the solvents were removed under reduced pressure. Column chromatography (20-40%) EtOAc-hexanes) afforded 140.0 mg (87%o) of the title compound as a colorless oil. Η NMR (CDCI3) δ: 7.49 (3H, m), 7.39 (IH, d, J = 7.9 Hz), 7.31 (IH, dd, J = 1.5, 7.9 Hz), 7.25 (2H, d, J = 8.2 Hz), 4.58 (IH, bs), 3.68 (3H, s), 3.62 (2H, s), 2.05 (IH, m), 1.79 (2H, m), 1.60 (IH, m), 1.33 (3H, s), 1.26 (3H,s). Methyl [4-(5-imidazol-l-yl-8.8-dimethyl-5.6.7.8-tetrahvdro-naphthalen-2- ylethynyl)-phenyl]-acetate (Compound 136, General Formula 4) A solution of methyl [4-(5-hydroxy-8,8-dimethyl-5,6,7,8-tetrahydro- naphthalen-2-ylethynyl)-phenyl]-acetate (Compound 135, 140.0 mg, 0.40 mmol) and carbonyldiimidazole (136.0 mg, 0.84 mmol) in 5 mL THF was heated to 65 °C for 48 hours. The solution was cooled to room temperature and concentrated under reduced pressure. The residue was dissolved in Et20 and washed with 5%> aqueous NaOH, H20, and saturated aqueous NaCl before being dried (NajSO^ and concentrated under reduced pressure. Column chromatography (5% MeOH-CH2Cl2) afforded 50.0 mg (31 %) of the title compound as a colorless solid. 'H NMR (CDC13) δ: 7.57 (IH, d, J = 1.5 Hz), 7.52-7.45 (3H, m), 7.27 (3H, m), 7.08 (IH, s), 6.81 (2H, m), 5.30 (IH, t, J = 5.8 Hz), 3.71 (3H, s), 3.65 (2H, s), 2.20 (2H, m), 1.75 (2H, m), 1.40 (3H, s), 1.36 (3H, s). [4-(5-Imidazol-l-yl-8.8-dimethyl-5.6.7.8-tetrahydro-naphthalen-2-yl- ethynyl)-phenyl]-acetic acid (Compound 137, General Formula 4) Using General Procedure I; a solution of methyl [4-(5-imidazol-l-yl- 8,8-dimethyl-5,6,7,8-tetrahydro-naphthalen-2-yl-ethynyl)-phenyl]-acetate (Compound 136, 50.0 mg, 0.13 mmol) in ethanol (4 mL) was treated with NaOH (120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 40.0 mg (83%o) of the title compound as a pale-orange solid. 'H NMR (d4-MeOH) δ: 8.93 (IH, s), 7.68 (IH, s), 7.61 (IH, s), 7.54 (IH, s), 7.47 (2H, d, J = 8.2 Hz), 7.31 (3H, m), 6.95 (IH, d, J = 8.2 Hz), 5.83 (IH, t, J = 5.8 Hz), 3.68 (IH, s), 3.63 (IH, s), 2.38 (IH, m), 2.26 (IH, m), 1.76 (2H, m), 1.45 (3H, s), 1.36 (3H, s). Ethyl r4-(5-imidazol-l-yl-8.8-dimethyl-5.6.7.8-tetrahvdro-naphthalen-2-yl- ethynvD-benzoate (Compound 138, General Formula 4) A solution of ethyl [4-(5-hydroxy-8,8-dimethyl-5 ,6,7,8-tetrahy dro- naphthalen-2-yl-ethynyl)-benzoate (180.0 mg, 0.52 mmol) and carbonyldiimidazole (176.0 mg, 1.08 mmol) in 5 mL THF was heated to 65 °C for 21 hours. The solution was cooled to room temperature and concentrated under reduced pressure. The residue was dissolved in Et20 and washed with 55 aqueous NaOH, H20, and saturated aqueous NaCl before being dried (Na2S04) and concentrated under reuced pressure. Column chromatography (5% MeOH-CH2Cl2) afforded 50.0 mg (24%) of the title compound as a colorless solid. Η NMR (CDC13) δ: 8.03 (2H, d, J = 7.9 Hz), 7.59 (3H, m), 7.46 (IH, s), 7.29 (IH, dd, J = 1.5, 8.3 Hz), 7.09 (IH, s), 6.82 (IH, d, J = 8.2 Hz), 6.81 (IH, s), 5.31 (IH, t, J = 5.8 Hz), 4.39 (2H, q, J = 7.1 Hz), 2.20 (2H, m), 1.75 (2H, m), 1.40 (9H, m). [4-(5-Imidazol-l-yl-8.8-dimethyl-5.6.7.8-tetrahydro-naphthalen-2-yl- ethynvD-benzoic acid (Compound 139, General Formula 4) Using General Procedure I; a solution of ethyl [4-(5-imidazol-l-yl- 8,8-dimethyl-5,6,7,8-tetrahydro-naphthalen-2-yl-ethynyl)-benzoate (Compound 138, 50.0 mg, 0.13 mmol) in ethanol (3 mL) and tetrahydrofuran (1 mL) was treated with NaOH (120.0 mg, 3.0 mmols, 3.0 mL of a IN aqueous solution) and stirred overnight at room temperature. Work-up afforded 40.0 mg (87%>) of the title compound as a colorless solid. Η NMR (d4-MeOH) δ: 8.92 (IH, s), 8.04 (2H, d, J = 8.2 Hz), 7.74 (IH, d, J = 1.5 Hz), 7.62 (3H, m), 7.57 (IH, t, J = 1.5 Hz), 7.38 (IH, dd, J = 1.5, 7.9 Hz), 6.97 (IH, d, J = 7.9 Hz), 5.83 (IH, t, J = 5.8 Hz), 2.33 (2H, m), 1.78 (2H, m), 1.47 (3H, s), 1.39 (3H, s). 2-Isopropyl-4-trifluoromethanesulfonyloχy-benzyl acetate (Intermediate 162) To a solution of 4-hydroxymethyl-3-isopropylρhenyl 1,1,1- trifluoromethanesulfonate (Intermediate 149, 190.0 mg, 0.64 mmol) in 5 mL CH2C12 was added acetyl chloride (75.0 mg, 0.96 mmol) and pyridine(101.0 mg, 1.38 mmols). After stirring for 3 hours at 25 °C the reaction was quenched by the addition of H20 and the resulting mixture extracted with EtOAc. The combined organic layers were washed with H20 and saturated aqueous NaCl, dried (MgS04) and concentrated under reduced pressure. The title compound, 182 mg (84%>), was isolated from the residual oil by column chromatography (5 - 10%) EtOAc-hexanes) as a colorless oil. 'H NMR (CDC13) δ: 7.43 (IH, d, J = 8.7 Hz), 7.19 (1H, d, J = 2.7 Hz), 7.09 (IH, dd, J = 2.7, 8.5 Hz), 5.17 (2H, s), 3.18 (IH, septet, J = 6.7 Hz), 2.10 (3H, s), 1.26 (6H, d, J = 6.7 Hz). 4-Isopropeny loxymethyl-3 -isopropyl-phenyl 1.1.1- trifluoromethanesulfonate (Intermediate 163) Using General Procedure 1 ; 2-isopropyl-4- trifluoromethanesulfonyloxy-benzyl acetate (Intermediate 162, 182.0 mg, 0.54 mmols), and 1.1 mL of Tebbe's Reagent (159.0 mg, 0.56 mmols) afforded 130.0 mg (72%) of the title compound as a colorless oil after column chromatography (2-5%) EtOAc-hexanes). 'H NMR (CDCI3) δ: 7.43 (IH, d, J = 8.5 Hz), 7.18 (IH, d, J = 2.6 Hz), 7.09 (IH, dd, J = 2.6, 8.5 Hz), 4.75 (2H, s), 3.98 (2H, s), 3.12 (IH, septet, J = 6.7 Hz), 1.88 (3H, s), 1.25 (6H, d, J = Hz). 3-Isopropy l-4-( 1 -methy 1-cy clopropoxymethy D-phenyl 1.1.1- trifluoromethanesulfonate (Intermediate 164) Using General Procedure 2; 4-isopropeny loxymethyl-3 - isopropylphenyl 1,1,1 -trifluoromethanesulfonate (Intermediate 163, 130. 0 mg, 0.39 mmol), Et^Zn (272.0 mg, 2.2 mmols), and CH2I2 (702.0 mg, 2.6 mmols) in 3.0 mL Et20 afforded 120.0 mg (89%) of the title compound as a colorless oil after column chromatography (4-5%> EtOAc - hexanes). 'H NMR (CDCI3) δ: 7.39 (IH, d, J = 8.5 Hz), 7.13 (IH, d, J = 2.7 Hz), 7.05 (IH, dd, J = 2.7, 8.5 Hz), 4.54 (2H, s), 3.16 (IH, septet, J = 6.7 Hz), 1.47 (3H, s), 1.24 (6H, d, J = 6.7 Hz), 0.86 (2H, m), 0.48 (2H, m). [3-Isopropyl-4-(l-methyl-cyclopropoxymethyl)-phenylethvnyl]- trimethylsilane (Intermediate 165) Using General Procedure D; 3 -isopropy l-4-(l -methy 1- cy clopropoxymethy l)-pheny 1 1,1,1 -trifluoromethanesulfonate (Intermediate 164, 120.0 mg, 0.34mmol) in triethylamine (2 mL) and anhydrous DMF (5 mL) was sparged with argon for 5 minutes. Trimethylsilyl acetylene (700.0 mg, 0.71 mmol) was then added followed by dichlorobis(triphenylphosphine)palladium(II) (24.0 mg, 0.03 mmol). The resulting reaction mixture was heated to 95 °C for 60 hours. The title compound 110.0 mg, (99%) was isolated by chromatography (0-1 %> EtOAc - hexanes). 'H NMR (CDC13) δ: 7.36 (IH, s), 7.24 (2H, bs), 4.53 (2H, s), 3.11 (IH, septet, J = 6.7 Hz), 1.45 (3H, s), 1.22 (6H, d, J = 6.7 Hz), 0.85 (2H, m), 0.44 (2H, m), 0.25 (9H, s). 4-Ethyny 1-2-isopropyl- 1 -( 1 -methy 1-cy clopropoxymethy D-benzene (Intermediate 166) Using General Procedure E; [3-isopropyl-4-(l -methy 1- cyclopropoxymethyl)-phenylethynyl]-trimethylsilane (Intermediate 165, 110.0 mg, 0.37 mmol) in methanol (6 mL) was treated with potassium carbonate (80.0 mg, 0.58 mmol) and stirred overnight at ambient temperature. The crude alkyne (84 mg, 100%>) was used directly in the next reaction. 'H NMR (CDCI3) δ: 7.55 (IH, s), 7.41 (2H, m), 4.68 (2H, s), 3.26 (IH, septet, J = 6.8 Hz), 3.18 (IH, s), 1.60 (3H, s), 1.37 (6H, d, J = 6.8 Hz), 0.99 (2H, m), 0.59 (2H, m). Methyl {4- [3 -isopropyl-4-( 1 -methy 1-cy clopropoxymethy D-pheny lethvnyl] - phenyl} -acetate (Compound 140, General Formula 6) Using General Procedure F ; 4-ethyny 1-2-isopropy 1- 1 -( 1 -methy 1- cyclopropoxymethyl)-benzene (Intermediate 166, 78.0 mg, 0.34 mmol) and methyl-(4-iodophenyl)-acetate (Reagent B, 94.0 mg, 0.34 mmol) in triethylamine (8 mL) was treated with copper(I)iodide (22.0 mg, 0.11 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (79 mg, 0.11 mmol) was added and the reaction mixture was stirred at room temperature for 3.5 hours. Column chromatography (2-5%> EtOAc - hexanes) afforded 77.0 mg (60%o) of the title compound as a yellow oil. Η NMR (CDC13) δ: 7.49 (2H, d, J = 8.2 Hz), 7.43 (IH, d, J = 1.5 Hz), 7.33- 7.24 (4H, m), 4.55 (2H, s), 3.70 (3H, s), 3.63 (2H, s), 3.14 (IH, septet, J = 6.8 Hz), 1.47 (3H, s), 1.25 (6H, d, J = 6.8 Hz), 0.86 (2H, m), 0.46 (2H, m). (4-[3-Isopropyl-4-(l-methyl-cyclopropoxymethyD-phenylethynyl]-phenyl>- acetic acid (Compound 141, Formula 6) Using General Procedure I; a solution methyl {4-[3-isopropyl-4-(l- methyl-cyclopropoxymethyl)-phenylethynyl]-phenyl}-acetate (Compound 140, 70.0 mg, 0.19 mmol) in ethanol (3 mL) and tetrahydrofuran (3 mL) was treated with NaOH (240.0 mg, 6.0 mmols, 2.0 mL of a 3N aqueous solution) and stirred overnight at room temperature. Work-up and purification by HPLC (Partisil 10-pac, 10% H20/CH3CN) afforded of the title compound as a colorless solid. 'H NMR (CDCI3) δ: 7.50 (2H, d, J = 8.2 Hz), 7.43 (IH, s), 7.33-7.24 (4H, m), 4.55 (2H, s), 3.65 (2H, s), 3.14 (IH, septet, J = 6.7 Hz), 1.47 (3H, s), 1.25 (6H, d, J = 6.7 Hz), 0.87 (2H, m), 0.46 (2H, m). 2.6-Di-tert-butyl-4-trimethylsilanylethynyl-phenol: (Intermediate 167) Following General Procedure D and using 4-bromo-2,6-di-t-butyl- phenol (1.43g, 5mmol), triethyl amine (15mL), anhydrous tetrahydrofuran (15mL), copper(I)iodide (0.06g, 0.3 lmmol), trimethylsilyl acetylene (4.9g, 50mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.18g, 0.26mmol) followed by flash column chromatography over silica gel (230- 400 mesh) using hexane as eluent, the title compound was obtained (1.35g, 90%). Η NMR (300 MHz, CDC13): δ 7.29 (s, 2H), 5.35 (s, IH), 1.42 (s, 18H), 0.24 (s, 9H). (3.5-Di-tgrt-butyl-4-methoxy-phenylethynyD-trimethyl-silane: (Intermediate 168) A solution 2,6-di-tgrt-butyl-4-trimethylsilanylethynyl-phenol (Intermediate 167, 0.302g, lmmol) in acetone (5mL) was treated with potassium carbonate (0.138g, lmmol) and methyl iodide (0.142g, lmmol) and stirred overnight at room temperature. The volatiles were distilled off in vacuo and the residue was purified by flash column chromatography on silica gel (230-400 mesh) using ethyl acetate as the eluent to afford the title compound as a white solid (0.28g, 90%). 'H NMR (300 MHz, CDC13): δ 7.41 (s, 2H), 3.70 (s, 3H), 1.49 (s, 18H), 0.30 (s, 9H). 1.3-Di-tgrt-butyl-5-ethynyl-2-methoxy-benzene: (Intermediate 169) Following General Procedure E and (3,5-di-tgrt-butyl-4-methoxy- phenylethynyl)-trimethyl-silane (Intermediate 168, 0.28g, 0.9mmol), potassium carbonate (0.98g, 7. lmmol) and methanol (1 OmL) followed by flash column chromatography over silica gel (230-400 mesh) using hexane as the eluent, the title compound was obtained (0.23g, 100%>). Η NMR (300 MHz, CDC13): δ 7.46 (s, 2H), 3.75 (s, 3H), 3.05 (s, IH), 1.49 (s, 18H). r4-(3.5-Di-tgrt-butyl-4-methoxy-phenylethynyl)-phenyl]-acetic acid methyl ester: (Compound 142, General Formula 5) Following General Procedure F and using 1 ,3-di-tgrt-butyl-5-ethyny 1- 2-methoxy-benzene (Intermediate 169, 0.094g, 0.36mmol), methyl-4-iodo phenyl acetate (Reagent B, 0.09g, 0.32mmol), triethyl amine (5mL), anhydrous tetrahydrofuran (5mL), copper(I)iodide (0.02g, 0. lmmol) and dichlorobis(triphenylphosphine)palladium(II) (0.06g, 0.085mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 10 %> ethyl acetate in hexane as the eluent, the title compound (0.114g, 81 %>) was obtained as an oil. 'H NMR (300 MHz, CDC13): δ 7.52 (d, 2H, J= 8.0Hz), 7.46 (s, 2H), 7.28 (d, 2H, J= 8.2Hz), 3.72 (s, 3H), 3.71(s, 3H), 3.66 (s, 2H), 1.47 (s, 18H). [4-(3.5-Di-tgrt-butyl-4-methoxy-phenylethynyl)-phenyl]-acetic acid: (Compound 143, General Formula 5) Following General Procedure I and using [4-(3,5-di-tgrt-butyl-4- methoxy-phenylethynyl)-phenyl]-acetic acid methyl ester (Compound 142, 0.114g, 0.29mmol), 5M aqueous sodium hydroxide solution (2mL) and ethanol (4mL), followed by preparative reverse phase HPLC using 10%o water in acetonitrile as the mobile phase, the title compound was obtained as a white solid (0.097g, 88%o). 'H NMR (300 MHz, CDC13): δ 7.55(d, 2H, J= 8.0Hz), 7.48 (s, 2H), 7.30 (d, 2H, J= 8.2Hz), 3.74 (s, 3H), 3.69 (s, 2H), 1.49 (s, 18H). [4-(3,5-Di-tgrt-butyl-4-methoxy-phenylethynyl)-2-fluoro-phenyl]-acetic acid methyl ester: (Compound 144, General Formula 5) Following General Procedure F and using l,3-di-tgrt-butyl-5-ethynyl- 2-methoxy-benzene (Intermediate 169, 0.087g, 0.33mmol), methyl-2- fluoro-4-iodo phenyl acetate (Reagent H, 0.088g, 0.30mmol), triethyl amine (5mL), anhydrous tetrahydrofuran (lOmL), copper(I)iodide (0.02g, 0. lmmol) and dichlorobis(triphenylphosphine)palladium(II) (0.06g, 0.085mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 10 % ethyl acetate in hexane as the eluent, the title compound (0.122g, 89%) was obtained. Η NMR (300 MHz, CDC13): δ 7.46 (s, 2H), 7.33-7.24 (m, 3H), 3.75 (s, 3H), 3.73(s, 3H), 3.72 (s, 2H), 1.48 (s, 18H). [4-(3.5-Di-tgrt-butyl-4-methoxy-phenylethynyl)-2-fluoro-phenyl]-acetic acid: (Compound 145, General Formula 5) Following General Procedure I and using [4-(3,5-di-tgrt-butyl-4- methoxy-phenylethynyl)-2-fluoro-phenyl]-acetic acid methyl ester (Compound 144, 0.122g, 0.29mmol), 5M aqueous sodium hydroxide solution (lmL) and ethanol (4mL), followed preparative reverse phase HPLC using 10% water in acetonitrile as the mobile phase, the title compound was obtained as a white solid (0.077g, 65%). Η NMR (300 MHz, CDC13): δ 7.42 (s, 2H), 7.29-7.19 (m, 3H), 3.71 (s, 2H), 3.69 (s, 3H), 1.43 (s, 18H).

Claims

WHAT IS CLAIMED IS
1. A compound of the formula
Figure imgf000238_0001
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; X is O, S or NR where R is H, alkyl of 1 to 6 carbons or benzyl; Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, Cl, Br, or I;
Z is -C≡C-,
- -((CCRR1^=CCRR1,))n> where n' is an integer having the value 1 - 5,
-CO-NRr5
NRrCO-;
-CO-O-,
-0-CO-,
-CS-NRr,
NRrCS-,
-CO-S-, -S-CO-, -N=N-; Rx is independently H or alkyl of 1 to 6 carbons; p is an integer having the values of 0 to 4; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, CF3, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 2; R4 is independently H, alkyl of 1 to 6 carbons, or F; fluorosubstituted alkyl of 1 to 6 carbons, or halogen; o is an integer having the values of 0 to 2; n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(Cι_ 6-alkyl), or a cation of a pharmaceutically acceptable base.
2. A compound in accordance with Claim 1 where A is phenyl, naphthyl, pyridyl, thienyl or furyl.
3. A compound in accordance with Claim 1 where n is 0, 1 or 2.
4. A compound in accordance with Claim 1 where Z is -C≡C-, -CO- NRr, -CO-O-, or
Figure imgf000239_0001
where n' is 1.
5. A compound in accordance with Claim 1 where the Z group is attached to the 6-position of the bicyclic moiety.
6. A compound in accordance with Claim 1 where X is O.
7. A compound in accordance with Claim 1 where Y is H, lower alkyl of 1 to 3 carbons or cyclopropyl.
8. A compound in accordance with Claim 1 where A is phenyl.
9. A compound in accordance with Claim 8 where Z is -C≡C-, or - CO-O-.
10. A compound in accordance with Claim 9 where Y is H or cyclopropyl.
11. A compound of the formula
Figure imgf000240_0001
where X is O or CH3N;
Y is H or cyclopropyl;
Z is -C≡C- or -CO-O-;
R2 is H or F; n is 0 or 1, and
R8 is H, alkyl of 1 to 6 carbons, or a cation of a pharmaceutically acceptable base.
12. A compound in accordance with Claim 11 where X is O.
13. A compound in accordance with Claim 12 where Y is H and Z is -C≡C-.
14. A compound in accordance with Claim 13 where the - (CH2)nCOOR8 group is in the 4 position of the phenyl ring.
15. A compound in accordance with Claim 14, which is selected from the group consisting of: benzoic acid, 4-[(3,4-dihydro-4,4-dimethylspiro[2H-l-benzopyran- 2,l'-cyclopropane]-6-yl)ethynyl]-, benzeneacetic acid, 4-[(3,4-dihydro-4,4- dimethylspiro[2H- 1 -benzopyran-2, 1 ' -cyclopropane] -6-yl)ethynyl]- and 2- fluoro-benzoic acid, 4-[(3 ,4-dihy dro-4,4-dimethylspiro[2H- 1 -benzopyran- 2, 1 '-cyclopropane]-6-yl)ethynyl]- or a salt with a pharmaceutically acceptable base or a Cj_6 alkyl ester of said compound.
16. A compound in accordance with Claim 12 where Y is cyclopropyl and Z is -C≡C-.
17. A compound in accordance with Claim 16 where the - (CΗ2)nCOOR8 group is in the 4 position of the phenyl ring.
18. A compound in accordance with Claim 17, which is selected from the group consisting of: benzeneacetic acid, 4- [(8-cy clopropy 1-3 ,4-dihy dro-4,4- dimethylspiro[2H- 1 -benzopyran-2, l'-cyclopropane]-6-yl)ethynyl]-, 4-[(8- cyclopropy 1-3 ,4-dihy dro-4,4-dimethylspiro[2H- 1 -benzopyran-2, 1 ' - cyclopropane]-6-yl)ethynyl]-2-fluoro-benzeneacetic acid , benzoic acid, 4- [(8-cyclopropyl-3,4-dihydro-4,4-dimethylspiro[2H-l-benzopyran-2,l '- cyclopropane]-6-yl)ethynyl]- and 4- [(8-cy clopropy 1-3 ,4-dihy dro-4,4- dimethylspiro[2H-l-benzopyran-2,l'-cyclopropane]-6-yl)ethynyl]-2-fluoro- benzoic acid or a salt with a pharmaceutically acceptable base or a Cl_6 alkyl ester of said compound.
19. A compound in accordance with Claim 12 where Y is cyclopropyl and Z is -CO-O-.
20. A compound in accordance with Claim 19 where the - (CΗ2)nCOOR8 group is in the 4 position of the phenyl ring.
21. A compound in accordance with Claim 20 which is spiro[2H-l- benzopyran-2, 1' -cyclopropane] -6-carboxy lie acid, 8-cy clopropy 1-3,4- dihydro-4,4-dimethyl-, 4-(carboxymethyl)phenyl ester or a salt with a pharmaceutically acceptable base or a Cj_6 alkyl ester of said compound.
22. A compound in accordance with Claim 19 where the - (CH2)nCOOR8 group is in the 3 position of the phenyl ring.
23. A compound in accordance with Claim 22 which is spiro[2H-l- benzopyran-2, 1' -cyclopropane] -6-carboxy lie acid, 8-cy clopropy 1-3,4- dihydro-4,4-dimethyl-, 3-(carboxymethyl)phenyl ester or a salt with a pharmaceutically acceptable base or a C^ alkyl ester of said compound.
24. A compound in accordance with Claim 11 where X is CΗ3N, Y is H and Z is -C≡C-.
25. A compound in accordance with Claim 22 which is benzoic acid, 4-[( 1 ,4,4-trimethylspiro[2H- 1 - 1 ,2,3,4-tetrahydroquinoline-2, 1 '- cyclopropane]-6-yl)ethynyl]- or a salt with a pharmaceutically acceptable base or a C 6 alkyl ester of said compound.
26. A compound of the formula
Figure imgf000242_0001
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; X is O, S or NR where R is H, alkyl of 1 to 6 carbons or benzyl; Z is -C≡C-, -(CR^CRj)-,. where n' is an integer having the value 1 - 5, -CO-NRΓ, NRΓCO-, -CO-O-, -O-CO-,
Figure imgf000243_0001
NRrCS-, -CO-S-, -S-CO-, -N=N-; Ri is independently H or alkyl of 1 to 6 carbons; p is an integer having the values of 0 to 4; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 4; Rg is H, alkyl of 1 to 6 carbons, fluorosubstituted alkyl of 1 to 6 carbons, benzyl, or lower alkyl or halogen substituted benzyl; n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH^Cj.g-alkyl), or a cation of a pharmaceutically acceptable base.
27. A compound in accordance with Claim 26 where A is phenyl, naphthyl, pyridyl, thienyl or furyl.
28. A compound in accordance with Claim 26 where n is 0, 1 or 2.
29. A compound in accordance with Claim 26 where Z is -C≡C-, - CO-NRr, -CO-O-, or -(CR^CR^, where n' is 1.
30. A compound in accordance with Claim 26 where the Z group is attached to the 4-position of the phenyl moiety.
31. A compound in accordance with Claim 26 where X is O.
32. A compound in accordance with Claim 26 where X is NR.
33. A compound of the formula
Figure imgf000244_0001
where X is O, NR where R is H, n-propyl or benzyl; R3 is H or lower alkyl of 1 to 6 carbons; R5 is benzyl or lower alkyl of 1 to 6 carbons; n is 0 or 1, and R8 is H, alkyl of 1 to 6 carbons, or a cation of a pharmaceutically acceptable base.
34. A compound in accordance with Claim 33 where X is NR.
35. A compound in accordance with Claim 34 where R is n-propyl and R5 is n-propyl.
36. A compound in accordance with Claim 35 which is 4-[4-(l- dipropylamino-cyclopropyl)-phenylethynyl]-benzoic acid or a salt with a pharmaceutically acceptable base or a Cj_6 alkyl ester of said compound.
37. A compound in accordance with Claim 34 where R is H and R5 is n-propyl or benzyl.
38. A compound in accordance with Claim 37 which is selected from the group consisting of 4- [4-(l-propy lamino-cy clopropy l)-pheny lethyny 1]- benzoic acid and 4- [4-( 1 -benzy lamino-cy clopropy l)-pheny lethyny 1] -benzoic acid or a salt with a pharmaceutically acceptable base or a C 6 alkyl ester of said compound.
39. A compound in accordance with Claim 34 where R is benzyl or methyl and R5 is benzyl.
40. A compound in accordance with Claim 39 which is selected from the group consisting of 4- [4-(l-dibenzy lamino-cy clopropy 1)- phenylethynyl]-benzoic acid and 4-[4-(l-benzylmethylamino-cyclopropyl)- phenylethynyl]-benzoic acid or a salt with a pharmaceutically acceptable base or a Cι_6 alkyl ester of said compound.
41. A compound in accordance with Claim 33 where X is O.
42. A compound in accordance with Claim 41 where R5 is benzyl and n is O.
43. A compound in accordance with Claim 42 which is selected from the group consisting of 4-[4-(l-benzyloxycyclopropyl)-phenylethynyl]- benzoic acid, 4-[4-(l-benzyloxycyclopropyl)-3-methyl-phenylethynyl]- benzoic acid and 4-[4-(l-benzyloxycyclopropyl)-3-ethyl-phenylethynyl]- benzoic acid or a salt with a pharmaceutically acceptable base or a C{_6 alkyl ester of said compound.
44. A compound in accordance with Claim 41 where R5 is benzyl and n is 1.
45. A compound in accordance with Claim 44 which is selected from the group consisting of {4-[4-(l-benzyloxycyclopropyl)-phenylethynyl]- phenyl} -acetic acid, {4-[4-(l-benzyloxycyclopropyl)-3-methyl- pheny lethyny l]-pheny 1} -acetic acid and {4- [4-( 1 -benzy loxy cyclopropy l)-3 - ethyl-phenylethynyl]-phenyl}-acetic acid or a salt with a pharmaceutically acceptable base or a C{_6 alkyl ester of said compound.
46. A compound in accordance with Claim 41 where R5 is methyl, ethyl, iso-propyl, or (CH3)3-CH2- and n is 0.
47. A compound in accordance with Claim 46 which is selected from the group consisting of 4- [4-(l -methoxy cyclopropy l)-pheny lethyny 1]- benzoic acid, 4-[4-(l-isopropoxycyclopropyl)-phenylethynyl]-benzoic acid, 4- [4-(l -isopropoxy cy clopropy l)-3 -methy 1-pheny lethyny 1] -benzoic acid, 4- [4-[l-(2,2-dimethylpropyloxy)-cyclopropyl]-3-methyl-phenylethynyl]- benzoic acid and 4- [4-(l -ethoxy cyclopropy l)-3-tgrt-buty 1-pheny lethyny 1]- benzoic acid or a salt with a pharmaceutically acceptable base or a C 6 alkyl ester of said compound.
48. A compound in accordance with Claim 41 where R5 is methyl, ethyl, iso-propyl, or (CH3)3-CH2- and n is 1.
49. A compound in accordance with Claim 48 which is selected from the group consisting of {4-[4-(l-methoxycyclopropyl)-phenylethynyl]- phenyl} -acetic acid, { 4- [4-(l -isopropoxy cyclopropy l)-pheny lethyny 1]- phenyl} -acetic acid, {4-[4-(l-isopropoxycyclopropyl)-3-methyl- phenylethynyl]-phenyl}-acetic acid, (4-[4-[l-(2,2-dimethylpropyloxy)- cyclopropyl]-3-methyl-phenylethynyl]-phenyl}-acetic acid, {4-[4-(l- benzyloxycyclopropyl)-3-ethyl-phenylethynyl]-phenyl}-acetic acid, {4-[4- (1 -isopropoxy cyclopropy l)-3 -ethy 1-pheny lethyny 1] -phenyl } -acetic acid and {4- [4-( 1 -ethoxy cyclopropy l)-3 -tgrt-buty 1-pheny lethyny 1] -phenyl } -acetic acid or a salt with a pharmaceutically acceptable base or a C,_6 alkyl ester of said compound.
50. A compound of the formula
Figure imgf000247_0001
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 1 to 6 carbons, Cl, Br, or I; Z is -C≡C-,
-(CR^CRj)^ where n' is an integer having the value 1 - 5, -CO-NRr, NRrCO-, -CO-O-, -O-CO-,
Figure imgf000247_0002
NRrCS-,
-CO-S-,
-S-CO-,
-N=N-; RJL is independently H or alkyl of 1 to 6 carbons; p is an integer having the values of 0 to 5; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 2; R4 is independently H, alkyl of 1 to 6 carbons, or F; fluorosubstituted alkyl of 1 to 6 carbons, or halogen; o is an integer having the values of 0 to 4; n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(C1.6-alkyl), or a cation of a pharmaceutically acceptable base.
51. A compound in accordance with Claim 50 where A is phenyl, naphthyl, pyridyl, thienyl or furyl.
52. A compound in accordance with Claim 50 where n is 0, 1 or 2.
53. A compound in accordance with Claim 50 where Z is -C≡C-, - CO-NRr, -CO-O-, or -(CR^CR where n' is 1.
54. A compound in accordance with Claim 50 where the Z group is attached to the 6-position of the bicyclic moiety.
55. A compound in accordance with Claim 50 where Y is H, lower alkyl of 1 to 3 carbons, cycloalkyl, lower alkyl substituted cycloalkyl, or halogen.
56. A compound in accordance with Claim 50 where A is phenyl.
57. A compound of the formula
Figure imgf000249_0001
where R2 is H or halogen; n is 0 or 1 and
R8 is H, alkyl of 1 to 6 carbons, or a cation of a pharmaceutically acceptable base.
58. A compound in accordance with Claim 57 where n is 1 and R2 is F.
59. A compound in accordance with Claim 58 which is [4-(2- cyclopropyl-4,4-dimethyl-l,2,3,4-tetrahydro-isoquinolin-6-yl-ethynyl)-2- fluoro-phenyl] -acetic acid or a salt with a pharmaceutically acceptable base.
60. A compound in accordance with Claim 57 where n is 1 and R2 is H.
61. A compound in accordance with Claim 60 which is [4-(2- cy clopropy 1-4,4-dimethyl- 1 ,2,3 ,4-tetrahy dro-isoquinolin-6-yl-ethyny 1)- phenyl]-acetic acid or a salt with a pharmaceutically acceptable base.
62. A compound of the formula
Figure imgf000249_0002
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; Xx is 1-imidazolyl, or lower alkyl or halogen substituted 1- imidazolyl, OR, SR, NRR6 where R is H, alkyl of 1 to 6 carbons or benzyl; Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, Cl, Br, or I; Z is -C≡C-, -(CR^CRj),,* where n' is an integer having the value 1 - 5, -CO-NR, -, NRrCO-, -CO-O-, -0-CO-, -CS-NRr, NRrCS-, -CO-S-, -S-CO-, -N=N-; Rj is independently H or alkyl of 1 to 6 carbons; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 2; R4 is independently H, alkyl of 1 to 6 carbons, or F; fluorosubstituted alkyl of 1 to 6 carbons, or halogen; o is an integer having the values of 0 to 4; R6 is H, lower alkyl, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons; n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(C1.6-alkyl), or a cation of a pharmaceutically acceptable base, with the proviso that when Y is H, A is phenyl and Xj is OH then n is 1 to 4.
63. A compound in accordance with Claim 62 where A is phenyl, naphthyl, pyridyl, thienyl or fiiryl.
64. A compound in accordance with Claim 62 where n is 0, 1 or 2.
65. A compound in accordance with Claim 62 where Z is -C≡C-, - CO-NRr, -CO-O-, or
Figure imgf000251_0001
where n' is 1.
66. A compound in accordance with Claim 62 where the Z group is attached to the 6-position of the bicyclic moiety.
67. A compound in accordance with Claim 62 where X1 is 1- imidazolyl, halogen or Cι_6 substituted 1-imidazolyl, or NRR6, where R6 is preferably cyclopropyl or branched-chain alkyl of 1 to 6 carbons.
68. A compound in accordance with Claim 62 where Y is H, lower alkyl of 1 to 3 carbons, cycloalkyl, lower alkyl substituted cycloalkyl, or halogen.
69. A compound of the formula
Figure imgf000252_0001
wherein Xt is 1-imidazolyl, or dialkyl-N or alky l,cy clopropy 1-N where the alkyl group has 1 to 6 carbons; R2 is H or halogen; n is 0 or 1, and R8 is H, alkyl of 1 to 6 carbons, or a cation of a pharmaceutically acceptable base.
70. A compound in accordance with Claim 69 where Xx is methy l,cy clopropy 1-N and n is 0.
71. A compound in accordance with Claim 70 which is selected from the group consisting of 4-[(5-cyclopropyl-methyl-amino)-8,8-dimethyl- 5,6,7,8-tetrahydro-naphthalene-2yl-ethynyl]-benzoic acid and 4-[5- (cyclopropyl-methyl-amino)-8,8-dimethyl- 5,6,7,8-tetrahydro-naphthalene- 2-yl-ethynyl]-2-fluoro benzoic acid or a salt with a pharmaceutically acceptable base or a Cl 6 alkyl ester of said compound.
72. A compound in accordance with Claim 69 where X! is methy l,cy clopropy 1-N and n is 1.
73. A compound in accordance with Claim 72 which is selected from the group consisting of 4-[(5-(cyclopropyl-methyl-amino)-8,8-dimethyl- 5,6,7,8-tetrahydro-naphthalene-2-yl-ethynyl)-phenyl]-acetic acid and [4-(5- (cyclopropyl-methyl-amino)-8,8-dimethyl- 5,6,7,8-tetrahydro-naphthalene-2- yl-ethynyl)-2-fluoro-phenyl]-acetic acid or a salt with a pharmaceutically acceptable base or a C 6 alkyl ester of said compound.
74. A compound in accordance with Claim 69 where X1 is methyl,ωo-propyl-N.
75. A compound in accordance with Claim 74 which is 4-[5-(iso- propyl-methyl-amino)-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalene-2-yl- ethynyl)]-benzoic acid or a salt with a pharmaceutically acceptable base or a Cj_6 alkyl ester of said compound.
76. A compound in accordance with Claim 69 where X-, is 1- imidazolyl and n is 0.
77. A compound in accordance with Claim 76 which is [4-(5- imidazol-l-yl-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalen-2-yl-ethynyl)- benzoic acid or a salt with a pharmaceutically acceptable base or a Cι_6 alkyl ester of said compound.
78. A compound in accordance with Claim 69 where Xl is 1- imidazolyl and n is 1.
79. A compound in accordance with Claim 78 which is [4-(5- imidazol-l-yl-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalen-2-yl-ethynyl)- pheny l]-acetic acid or a salt with a pharmaceutically acceptable base or a C,. 6 alkyl ester of said compound.
80. A compound of the formula
Figure imgf000253_0001
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; X is O, S or NR where R is H, alkyl of 1 to 6 carbons, C1.6- trialkylsilyl or benzyl; Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, Cl, Br, or I; Z is -C≡C-, -(CRj=CRι)n» where n' is an integer having the value 1 - 5, -CO-NRr, NRrCO-, -CO-O-, -0-CO-, -CS-NRr, NRrCS-, -CO-S-, -S-CO-, -N=N-; Rx is independently H or alkyl of 1 to 6 carbons; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 3; R7 is H, alkyl of 1 to 6 carbons, cycloalkyl of 3 to 6 carbons or lower alkyl substituted cycloalkyl of 1 to 6 carbons; n is an integer having the values of 1 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(Ci.6-alkyl), or a cation of a pharmaceutically acceptable base.
81. A compound in accordance with Claim 80 where A is phenyl, naphthyl, pyridyl, thienyl or furyl.
82. A compound in accordance with Claim 80 where n is 0, 1 or 2.
83. A compound in accordance with Claim 80 where Z is -C≡C-, - CO-NRr, -CO-O-, or
Figure imgf000255_0001
where n' is 1.
84. A compound in accordance with Claim 80 where the Z group is attached to the 4-position of the phenyl moiety.
85. A compound in accordance with Claim 80 where X is O.
86. A compound in accordance with Claim 80 where Y is H, lower alkyl of 1 to 3 carbons, cycloalkyl, lower alkyl substituted cycloalkyl, or halogen.
87. A compound in accordance with Claim 80 where A is phenyl.
88. A compound in accordance with Claim 80 where n is 1.
89. A compound of the formula
Figure imgf000255_0002
wherein Y is branched-chain alkyl of 3 to 6 carbons; R2 is H or F; R3 is branched-chain alkyl of 3 to 6 carbons; R7 is lower alkyl of 1 to 6 carbons, and R8 is H, alkyl of 1 to 6 carbons, -CH20(C1.6-alkyl), or a cation of a pharmaceutically acceptable base.
90. A compound in accordance with Claim 89 where Y is t-butyl.
91. A compound in accordance with Claim 90 where R3 is t-butyl.
92. A compound in accordance with Claim 91 where R7 is methyl.
93. A compound in accordance with Claim 92 which is selected from the group consisting of [4-(3,5-di-tgrt-butyl-4-methoxy-phenylethynyl)- phenyl] -acetic acid and [4-(3,5-di-tgrt-butyl-4-methoxy-phenylethynyl)-2- fluoro-phenyl] -acetic acid or a salt of said compound with a pharmaceutically acceptable base.
94. A compound of the formula
Figure imgf000256_0001
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; X2 is 1-imidazolyl, lower alkyl or halogen substituted 1-imidazolyl, OR7, SR7 or NRR7 where R is H, alkyl of 1 to 6 carbons or benzyl; Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, Cl, Br, or I; Z is -C≡C-, -(CR1=CR1)n! where n' is an integer having the value 1 - 5, -CO-NRΓ, NRrCO-, -CO-O-, -O-CO-, -CS-NRΓ, NRrCS-, -CO-S-, -S-CO-, -N=N-; Rj is independently H or alkyl of 1 to 6 carbons; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is alkyl of 1 to 6 carbons, F, Cl, Br, I, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 3; R7 is H, alkyl of 1 to 6 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons or
Figure imgf000257_0001
n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(C1.6-alkyl), or a cation of a pharmaceutically acceptable base.
95. A compound in accordance with Claim 94 where A is phenyl, naphthyl, pyridyl, thienyl or furyl.
96. A compound in accordance with Claim 94 where n is 0, 1 or 2.
97. A compound in accordance with Claim 94 where Z is -C≡C-, - CO-NRr, -CO-O-, or -(CR^CR,)-,, where n' is 1.
98. A compound in accordance with Claim 94 where the Z group is attached to the 4-position of the phenyl moiety.
99. A compound in accordance with Claim 94 where X2 is 1- imidazolyl, lower alkyl or halogen substituted 1-imidazolyl.
100. A compound in accordance with Claim 94 where Y is H, lower alkyl of 1 to 3 carbons, cycloalkyl, lower alkyl substituted cycloalkyl, or halogen.
101. A compound in accordance with Claim 94 where A is phenyl.
102. A compound in accordance with Claim 94 where n is 1.
103. A compound of the foπnula
Figure imgf000258_0001
wherein R3 is alkyl of 1 to 6 carbons; X2 is 1-imidazolyl, OR7, or NRR7 where R is alkyl of 1 to 6 carbons or cyclopropyl, and R7 is alkyl of 1 to 6 carbons, cyclopropyl or lower alkyl substituted cyclopropyl; n is 0 or l, and R8 is H, alkyl of 1 to 6 carbons, or a cation of a pharmaceutically acceptable base.
104. A compound in accordance with Claim 103 wherein X2 is 1- imidazolyl.
105. A compound in accordance with Claim 104 wherein n is 0.
106. A compound in accordance with Claim 105 which is selected from the group consisting of 4-(4-imidazol- 1-yl-methy 1-3 -methy 1- pheny lethyny l)-benzoic acid and [4-(4-imidazol- 1-yl-methy 1-3 -isopropy 1- phenylethynyl)-phenyl]-benzoic acid or a salt of said compound with a pharmaceutically acceptable base or a Cμg alkyl ester of said compound.
107. A compound in accordance with Claim 104 wherein n is 1.
108. A compound in accordance with Claim 107 which is selected from the group consisting of [4-(4-imidazol- 1-y 1-methy 1-3 -methy 1- pheny lethyny l)-phenyl]-acetic acid and [4-(4-imidazol-l-yI-methyl-3- isopropyl-phenylethynyl)-phenyl]-acetic acid or a salt of said compound with a pharmaceutically acceptable base or a C 6 alkyl ester of said compound.
109. A compound in accordance with Claim 103 where X2 is ethy l,cy clopropy 1-N- .
110. A compound in accordance with Claim 109 wherein n is 0.
111. A compound in accordance with Claim 110 which is selected from the group consisting of 4-{4-[(cyclopropyl-ethyl-amino)-methyl]-3- methy 1-pheny lethyny 1} -benzoic and 4-{4-[(cyclopropyl-ethyl-amino)- methyl]-3-isopropyl-phenylethynyl}-benzoic acid or a salt of said compound with a pharmaceutically acceptable base or a Cι_6 alkyl ester of said compound.
112. A compound in accordance with Claim 109 wherein n is 1.
113. A compound in accordance with Claim 112 which is (4-{4- [(cyclopropyl-ethyl-amino)-methyl]-3-methyl-ρhenylethynyl}-phenyl)-acetic acid or a salt of said compound with a pharmaceutically acceptable base or a Cι_6 alkyl ester of said compound.
114. A compound in accordance with Claim 103 where X2 is (1- methy l)cy clopropy 1-oxy.
115. A compound in accordance with Claim 114 wherein n is 1.
116. A compound in accordance with Claim 115 which is {4-[3- isopropy l-4-( 1 -methyl-cy clopropoxymethy l)-pheny lethyny l]-phenyl} -acetic acid or a salt of said compound with a pharmaceutically acceptable base or a Cj_6 alkyl ester of said compound.
117. A compound of the formula
Figure imgf000260_0001
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; Y is H, alkyl of 1 to 10 carbons, benzyl, lower alkyl or halogen substituted benzyl, fluoro-substituted alkyl of 1 to 10 carbons, cycloalkyl of 3 to 6 carbons, lower alkyl substituted cycloalkyl of 3 to 6 carbons, F, Cl, Br, or I; Z is -C≡C-, -(CR^CRj)^ where n' is an integer having the value 1 - 5, -CO-NRr, NRrCO-, -CO-O-, -0-CO-, -CS-NRr, NRrCS-, -CO-S-, -S-CO-, -N=N-; Rx is independently H or alkyl of 1 to 6 carbons; p is an integer having the values of 0 to 5; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, CF3, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, CF3, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 2; R4 is independently H, alkyl of 1 to 6 carbons, or F; fluorosubstituted alkyl of 1 to 6 carbons, or halogen; o is an integer having the values of 0 to 4; n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(C1.6-alkyl), or a cation of a pharmaceutically acceptable base.
118. A compound in accordance with Claim 117 where A is phenyl, naphthyl, pyridyl, thienyl or furyl.
119. A compound in accordance with Claim 117 where n is 0, 1 or 2.
120. A compound in accordance with Claim 117 where Z is -C≡C-, - CO-NRr, -CO-O-, or -(CRj Ttj where n' is 1.
121. A compound in accordance with Claim 117 where the Z group is attached to the 6-position of the bicyclic moiety.
122. A compound in accordance with Claim 117 where Y is H, lower alkyl of 1 to 3 carbons, cycloalkyl, lower alkyl substituted cycloalkyl, or halogen.
123. A compound in accordance with Claim 117 where A is phenyl.
124. A compound in accordance with Claim 117 where n is 1.
125. A compound of the formula
Figure imgf000262_0001
wherein R2 is hydrogen, alkyl of 1 to 6 carbons, or halogen n is 0 or 1, and R8 is H, alkyl of 1 to 6 carbons, or a cation of a pharmaceutically acceptable base.
126. A compound in accordance with Claim 125 wherein n is 0.
127. A compound in accordance with Claim 126 which is 4-(l- cyclopropy 1-4,4-dimethyl- 1 ,2,3,4-tetrahydroquinolin-6-yl-ethynyl)-benzoic acid or a salt of said compound with a pharmaceutically acceptable base or a Cj_6 alkyl ester of said compound.
128. A compound in accordance with Claim 125 wherein n is 1.
129. A compound in accordance with Claim 128 which is [4-(l- cyclopropy 1-4,4-dimethyl- 1 ,2,3 ,4-tetrahy dro-quinolin-6-y l-ethyny l)pheny 1] acetic acid methyl ester.
130. A compound of the formula
wherein A is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R2 groups; X3 is S, or O, C(R1)2, or CO; Yj is H, lower alkyl of 1 to 3 carbons, cycloalkyl of 3 to 6 carbons, benzyl, lower alkyl substituted cycloalkyl of 3 to 6 carbons; Z is -C≡C-,
Figure imgf000263_0002
where n' is an integer having the value 1 - 5, -CO-NRr, NRrCO- -CO-O-, -0-CO-, -CS-NRr, NRrCS-, -CO-S-, -S-CO-, -N=N-; Rx is independently H or alkyl of 1 to 6 carbons; R2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br, I, CF3, fluoro substituted alkyl of 1 to 6 carbons, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, CF3, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, alkylthio of 1 to 6 carbons or benzyl; m is an integer having the values 0 to 2; R4 is independently H, alkyl of 1 to 6 carbons, or F; fluorosubstituted alkyl of 1 to 6 carbons, or halogen; o is an integer having the values of 0 to 4; n is an integer having the values of 0 to 4, and R8 is H, alkyl of 1 to 6 carbons, -CH20(Ci.6-alkyl), or a cation of a pharmaceutically acceptable base, the compound meeting at least one of the provisos selected from the group consisting of: Yj is cycloalkyl, when Yx is not cycloalkyl then X3 is O or S and n is 1, when Yj is not cycloalkyl then X3 is CO, and n is 1, when Yj is not cycloalkyl then X3 is CO and the moiety A is substituted with at least one F group.
131. A compound in accordance with Claim 130 where A is phenyl, naphthyl, pyridyl, thienyl or furyl.
132. A compound in accordance with Claim 130 where n is 0, 1 or 2.
133. A compound in accordance with Claim 130 where Z is -C≡C-, - CO-NRj-,
-CO-O-, or
Figure imgf000265_0001
where n' is 1.
134. A compound in accordance with Claim 130 where the Z group is attached to the 6-position of the bicyclic moiety.
135. A compound in accordance with Claim 130 where Yx is H, lower alkyl of 1 to 3 carbons, cycloalkyl, lower alkyl substituted cycloalkyl.
136. A compound in accordance with Claim 130 where A is phenyl.
137. A compound in accordance with Claim 130 where n is 1.
138. A compound in accordance with Claim 130 where X3 is O or
CO.
139. A compound of the formula
Figure imgf000265_0002
wherein R2 is H or F;
R3 is H or lower alkyl of 1 to 6 carbons;
X3 is O or CO;
Yj is H, alkyl of 1 to 6 carbons, or cyclopropyl; Z is -C≡C- or -CO-O-; n is 0 or 1, and R8 is H, alkyl of 1 to 6 carbons, or a cation of a pharmaceutically acceptable base, the compound meeting at least one of the provisos selected from the group consisting of: Yx is cyclopropyl, when Yj is not cyclopropyl then X3 is O and n is 1, when Yx is not cyclopropyl then X3 is CO, and n is 1, when Yt is not cyclopropyl then X3 is CO and the moiety A is substituted with at least one F group.
140. A compound in accordance with Claim 139 wherein Z is -C≡C- .
141. A compound in accordance with Claim 140 wherein X3 is CO, Yj is H and n is 0.
142. A compound in accordance with Claim 141 which is 2-fluoro- 4-(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalen-2yl-ethynyl)-benzoic acid or a salt of said compound with a pharmaceutically acceptable base or a C j _6 alkyl ester of said compound.
143. A compound in accordance with Claim 140 wherein X3 is CO, Y^s H and n is 1.
144. A compound in accordance with Claim 143 which is selected from the group consisting of 4-[(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro- naphthalene-2-yl-ethynyl)-phenyl]-acetic acid and [2-fluoro-4-(8,8- dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalene-2-yl-ethynyl)phenyl]-acetic acid or a salt of said compound with a pharmaceutically acceptable base or a Cj_6 alkyl ester of said compound.
145. A compound in accordance with Claim 140 wherein X3 is O, Yx is H and n is 0.
146. A compound in accordance with Claim 145 which is 2-fluoro- 4-(2,2,4,4-tetramethyl-chroman-6-yl-ethynyl)-benzoic acid or a salt of said compound with a pharmaceutically acceptable base or a Cj_6 alkyl ester of said compound.
147. A compound in accordance with Claim 140 wherein X3 is O, Yj is H or ethyl and n is 1.
148. A compound in accordance with Claim 147 which is selected from the group consisting of [4-(2,2,4,4-tetramethyl-chroman-6-yl-ethynyl) phenyl] acetic acid, [2-fluoro-4-(2,2,4,4-tetramethyl-chroman-6-yl-ethynyl) phenyl] acetic acid and [4-(8-ethyl-2,2,4,4-tetramethyl-chroman-6-yl- ethynyl) phenyl] acetic acid or a salt of said compound with a pharmaceutically acceptable base or a Cμ6 alkyl ester of said compound.
149. A compound in accordance with Claim 140 wherein X3 is O, Yj is cyclopropyl and n is 0.
150. A compound in accordance with Claim 149 which is 4-(8- cy clopropy l-2,2,4,4-tetramethyl-chroman-6-yl-ethynyl)-benzoic acid or a salt of said compound with a pharmaceutically acceptable base or a C ,_6 alkyl ester of said compound.
151. A compound in accordance with Claim 140 wherein X3 is O, Yj is cyclopropyl and n is 1.
152. A compound in accordance with Claim 151 which is selected from the group consisting of [4-(8-cyclopropyl-2,2,4,4-tetramethyl- chroman-6-yl-ethynyl) phenyl] acetic acid and [4-(8-cyclopropyl-2,2,4,4- tetramethyl-chroman-6-yl-ethynyl)-2-fluorophenyl] acetic acid or a salt of said compound with a pharmaceutically acceptable base or a Cj_6 alkyl ester of said compound.
153. A compound in accordance with Claim 139 where Z is -CO-O-, X3 is CO and n is 1.
154. A compound in accordance with Claim 153 which is 8,8- dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalene-2-carboxylic acid-4- (carboxymethy l)phenyl ester or a salt of said compound with a pharmaceutically acceptable base or a Cι_6 alkyl ester of said compound.
155. A compound in accordance with Claim 139 where Z is -CO-O-, X3 is O and n is 1.
156. A compound in accordance with Claim 155 which is 2,2,4,4- tetramethyl-chroman-6-carboxylic acid 4-(carboxymethyl)phenyl ester or a salt of said compound with a pharmaceutically acceptable base or a C 6 alkyl ester of said compound.
PCT/US2001/025443 2000-08-29 2001-08-14 Compounds having activity as inhibitors of cytochrome p450rai WO2002018361A2 (en)

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US09/651,004 US6369261B1 (en) 2000-08-29 2000-08-29 Compounds having activity as inhibitors of cytochrome P450RAI
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US6495552B2 (en) 2000-08-29 2002-12-17 Allergan, Inc. Methods of providing and using compounds having activity as inhibitors of cytochrome P450RAI
US6855512B2 (en) 2000-08-29 2005-02-15 Allergan, Inc. Methods for identifying inhibitors of cytochrome P450RAI
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WO2002026727A2 (en) * 2000-09-28 2002-04-04 Allergan, Inc. Methods of providing and using compounds (retinoids) having activity as inhibitors of cytochrome p450rai
US8013001B2 (en) 2001-12-21 2011-09-06 Exelixis, Inc. Modulators of LXR
US7998986B2 (en) 2001-12-21 2011-08-16 Exelixis Patent Company Llc Modulators of LXR
JP2005525387A (en) * 2002-03-19 2005-08-25 アラーガン　インコーポレイテッド Substituted chroman derivatives having cytochrome P450RAI inhibitory activity
US7211672B2 (en) 2002-10-04 2007-05-01 Millennium Pharmaceuticals, Inc. PGD2 receptor antagonists for the treatment of inflammatory diseases
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US9573906B2 (en) 2011-09-15 2017-02-21 Arizona Board Of Regents, A Body Corporate Of The State Of Arizona Acting For And On Behalf Of Arizona State University Therapeutic compounds
US10391093B2 (en) 2011-09-15 2019-08-27 Arizona Board Of Regents, A Body Corporate Of The State Of Arizona, Acting For And On Behalf Of Arizona State University Therapeutic compounds
US10328040B2 (en) 2014-01-17 2019-06-25 Arizona Board Of Regents On Behalf Of Arizona State University Therapeutic methods
AU2015329798B2 (en) * 2014-10-10 2019-07-11 High Force Research Limited Fluorescent synthetic retinoids
AU2015329798C1 (en) * 2014-10-10 2019-10-24 High Force Research Limited Fluorescent synthetic retinoids
US10759762B2 (en) 2014-10-10 2020-09-01 High Force Research Limited Fluorescent synthetic retinoids
US10238655B2 (en) 2017-01-23 2019-03-26 Arizona Board Of Regents On Behalf Of Arizona State University Dihydroindene and tetrahydronaphthalene compounds
US10238626B2 (en) 2017-01-23 2019-03-26 Arizona Board Of Regents On Behalf Of Arizona State University Therapeutic compounds
US10231947B2 (en) 2017-01-23 2019-03-19 Arizona Board Of Regents On Behalf Of Arizona State University Isochroman compounds and methods of use thereof

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