Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
  • C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
  • C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
• • 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
  • A61P3/06—Antihyperlipidemics
• • 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
  • A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
  • A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
• • 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
  • A61P9/00—Drugs for disorders of the cardiovascular system
  • A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
  • C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
  • C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
  • C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
  • C07D277/34—Oxygen atoms
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
  • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
  • C07D417/06—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
  • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
  • C07D417/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a carbon chain containing aromatic rings

Definitions

• Type 2 diabetes also referred to as non-insulin dependent diabetes mellirus (NIDDM)
• NIDDM non-insulin dependent diabetes mellirus
• Troglitazone ResulinTM
• rosiglitazone AvandiaTM
• the currently approved compounds can however have side effects including rare but severe liver toxicities and they can increase body weight in humans. Such side effects are of major concern for diabetes patients who can require treatment for a decade or longer. Therefore, new and better drugs for the treatment of type 2 diabetes and related disorders are needed.
• drugs that can control blood sugar levels and simultaneously control hyperlipidemia and hypercholesterolemia are desirable. Elevated levels of cholesterol lead to atherosclerosis and heart disease which in many type 2 diabetes patients is the cause of death.
• Ar 5 is an aryl, substituted aryl, heteroaryl, or substituted heteroaryl
• B, H, I, J and K are independently selected from -C(O)-, -C(S)-, -O-, -S- , -N(R,o ⁇ )-, -N(R 102 )-, -C(R,o 3 )(Rio4)-, -C(R ⁇ 05 )(R.o6)-, or -C(R 107 )(R ⁇ og)-
• one, or two of B, H, I, J or K can optionally be absent
• i) Rioi, R102, Ri03, Ri04, Rios, Rioe, Ri07 and R ⁇ 08 are independently selected from hydrogen, hydroxyl, a halogen, amino, or an organic radical; ii) two of B, H, I, J and K form at least one radical having the structure
• R x is a Rioi or R ⁇ o 2 radical; iii) Ar 5 together with B, H, I, J and K comprise from 2 to 24 carbon atoms; c) Ar 6 is an aryl, substituted aryl, heteroaryl, or substituted heteroaryl; d) R ⁇ o is hydrogen, hydroxy, or an organic radical; e) is either present or absent; f) HAr is a heterocycle having the structure
• the compounds of the invention have a heterocyclic ring comprising B, H, I, J and K residues, wherein the heterocyclic ring comprises an amide residue having the structure;
• the heterocyclic amide compounds comprising an amide residue have been found to be unexpectedly active for advantageously regulating carbohydrate metabolism, including serum glucose levels.
• the heterocyclic amide compounds have also been found to be unexpectedly effective modulators of lipid metabolism, and are therefore useful for the treatment of hyperlipidemia and/or hypercholesterdemia. Therefore, the heterocyclic amide compounds of the invention can simultaneously and beneficially regulate carbohydrate and lipid metabolism so as to simultaneously decrease levels of serum glucose, serum triglycerides, and serum cholesterol.
• the heterocyclic amide compounds are unexpectedly useful for the treatment of type 2 diabetes and the simultaneous treatment of the hyperlipidemia, hypercholesterdemia, and/or atherosclerosis which is often associated with diabetes.
• the heterocyclic amide compounds of the invention have also been found to have unexpectedly superior pharmaceutical properties, including unexpectedly superior oral bioavailability as compared to prior art compounds.
• heterocyclic compounds of the present invention also show activity for inducing adipocyte differentiation in certain well known cell lines of pre-adipocytes.
• heterocyclic compounds of the invention have been tested for utility in the treatment of diseases of uncontrolled proliferation.
• the heterocyclic compound described herein have shown unexpectedly effective results for the treatment of breast cancer in an in vivo rat model of breast cancer.
• the invention also provides methods for the treatment of diabetes and associated diseases, as well as methods for the treatment of diseases of uncontrolled cellular proliferation comprising administering to a mammal diagnosed as having a disease of uncontrolled cellular proliferation one or more compounds of the invention, or a pharmaceutical composition thereof.
• Figure 1 shows the results of in- vitro screening assays for the ability of some of the compounds of the invention to induce differentiation of 3T3-Llpre-adipocytes to adipocytes.
• Figures 2a-d show the ability of certain compounds 1, 2, 11, 13, and 25, when orally administered, to simultaneously decrease the serum glucose and triglyceride levels of KKA mice, as compared to control KKA y mice that do not receive the compounds.
• Figure 2e shows the ability of compound 25, when orally administered, to simultaneously decrease the serum glucose, serum triglyceride, and serum cholesterol levels of KKA V mice at various dosage levels, as compared to control KKA V mice that do not receive the compound.
• Figure 3 shows the glucose and triglyceride lowering activity of compound 25 in the type 2 diabetic db/db Mouse Model.
• Figure 4 shows the ability of compound 2 to increase cholesterol efflux from macrophage cells.
• Figure 5 a-c show the ability of compounds 2, 6, and 25 to decrease total cholesterol and LDL (bad cholesterol) while increasing HDL (good cholesterol) in Sprague Dawley rats.
• Figure 6 shows the ability of the compounds to decrease the number of progressing carcinogen induced mammary tumors in Sprague Dawley rats, and increase the number of static and regressing tumors.
• Figure 7 shows the unexpectedly improved oral bioavailability of compound 25 compared to comparative compound 24.
• Figure 8 shows examples of methods for synthesizing precancers of the compounds disclosed herein.
• Figure 9 shows examples of methods for synthesizing the compounds disclosed herein.
• compounds of the invention have demonstrated unexpectedly superior oral bioavailability, as exhibited by their high blood levels after oral dosing in animals.
• Oral bioavailability allows oral dosing for use in chronic diseases, with the advantage of self-administration and decreased cost over other means of administration.
• the compounds described herein can be used effectively to prevent, alleviate or otherwise treat type 2 diabetes and/or other disease states in mammals and/or humans, such as atherosclerosis and diseases related to inflammation and/or uncontrolled proliferation, including cancers such as breast cancer.
• pharmaceutically acceptable is meant a material that is not biologically or otherwise undesirable, i.e., the material can be administered to an individual along with the relevant active compound without causing clinically unacceptable biological effects or interacting in a deleterious manner with any of the other components of the pharmaceutical composition in which it is contained.
• an effective amount of a compound as provided herein is meant a sufficient amount of the compound to provide the desired regulation of a desired function, such as gene expression, protein function, or a disease condition.
• a desired function such as gene expression, protein function, or a disease condition.
• the exact amount required will vary from subject to subject, depending on the species, age, and general condition of the subject, the severity of the disease that is being treated, the particular compound used, its mode of administration, and the like. Thus, it is not possible to specify an exact “effective amount.” However, an appropriate effective amount can be determined by one of ordinary skill in the art using only routine experimentation.
• alkyl denotes a hydrocarbon group or residue which is structurally similar to a non-cyclic alkane compound modified by the removal of one hydrogen from the non-cyclic alkane and the substitution therefore of a non-hydrogen group or residue.
• Alkyls comprise a noncyclic, saturated, straight or branched chain hydrocarbon residue having from 1 to 12 carbons, or 1 to 8 carbons, or 1 to 6 carbons. Examples of such alkyl radicals include methyl, ethyl, n-propyl, ⁇ -propyl, ..-butyl, .sec-butyl, t-butyl, amyl, t-amyl, n-pentyl and the like. Lower alkyls comprise a noncyclic, saturated, straight or branched chain hydrocarbon residue having from 1 to 4 carbon atoms.
• substituted alkyl denotes an alkyl radical analogous to the above definition that is further substituted with one, two, or more additional organic or inorganic substituent groups.
• Suitable substituent groups include but are not limited to hydroxyl, cycloalkyl, amino, mono-substituted amino, di-substituted amino, acyloxy, nitro, cyano, carboxy, carboalkoxy, alkylcarboxamide, substituted alkylcarboxamide, dialkylcarboxamide, substituted dialkylcarboxamide, alkylsulfonyl, alkylsulfinyl, thioalkyl, thiohaloalkyl, alkoxy, substituted alkoxy, haloalkoxy, heteroaryl, substituted heteroaryl, aryl or substituted aryl. When more than one substituent group is present then they can be the same or different.
• the organic substituent groups can comprise from 1 to 12 carbon atoms, or from 1 to 6
• alkenyl denotes an alkyl residue as defined above that comprises at least one carbon-carbon double bond. Examples include but are not limited to vinyl, allyl, 2-butenyl, 3-butenyl, 2-pentenyl, 3-pentenyl, 4-pentenyl, 2-hexenyl, 3-hexenyl, 4- hexenyl, 5-hexanyl, 2-heptenyl, 3-heptenyl, 4-heptenyl, 5-heptenyl, 6-heptenyl and the like.
• alkenyl includes dienes and trienes of straight and branch chains.
• substituted alkenyl denotes an alkenyl residue as defined above definitions that is substituted with one or more groups, but preferably one, two or three groups, selected from halogen, hydro xyl, cycloalkyl, amino, mono-substituted amino, di-substituted amino, acyloxy, nitro, cyano, carboxy, carboalkoxy, alkylcarboxamide, substituted alkylcarboxamide, dialkylcarboxamide, substituted dialkylcarboxamide, alkylsulfonyl, alkylsulfinyl, thioalkyl, thiohaloalkyl, alkoxy, substituted alkoxy or haloalkoxy. When more than one group is present then they can be the same or different.
• the organic substituent groups can comprise from 1 to 12 carbon atoms, or from 1 to 6 carbon atoms, or from 1 to 4 carbon atoms.
• alkynyl denotes a residue as defined above that comprises at least one carbon-carbon double bond. Examples include but are not limited ethynyl, 1- propynyl, 2-propynyl, 1-butynyl, 2-butynyl, 3-butynyl, 1 -pentynyl, 2-pentynyl, 3- pentynyl, 4-pentynyl, 1-hexynyl, 2-hexynyl, 3-hexynyl, 4-hexynyl, 5-hexynyl and the like.
• alkynyl includes di- and tri-ynes.
• substituted alkynyl denotes an alkylnyl residue of the above definition that is substituted with one or more groups, but preferably one or two groups, selected from halogen, hydroxyl, cycloalkyl, amino, mono-substituted amino, di- substituted amino, acyloxy, nitro, cyano, carboxy, carboalkoxy, alkylcarboxamide, substituted alkylcarboxamide, dialkylcarboxamide, substituted dialkylcarboxamide, alkylsulfonyl, alkylsulfinyl, thioalkyl, thiohaloalkyl, alkoxy, substituted alkoxy or haloalkoxy. When more than one group is present then they can be the same or different.
• the organic substituent groups can comprise from 1 to 12 carbon atoms, or from 1 to 6 carbon atoms, or from 1 to 4 carbon atoms.
• cycloalkyl denotes a hydrocarbon group or residue which is structurally similar to a cyclic alkane compound modified by the removal of one hydrogen from the cyclic alkane and substitution therefore of a non-hydrogen group or residue.
• Cycloalkyl groups, or residues radical contain 3 to 18 carbons, or preferably 4 to 12 carbons, or 5 to 8 carbons. Examples include as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, decahydronapthyl, adamantyl, and like residues.
• substituted cycloalkyl denotes a cycloalkyl residue as defined above that is further substituted with one, two, or more additional organic or inorganic groups that can include but are not limited to halogen, alkyl, substituted alkyl, hydroxyl, alkoxy, substituted alkoxy, carboxy, carboalkoxy, alkylcarboxamide, substituted alkylcarboxamide, dialkylcarboxamide, substituted dialkylcarboxamide, amino, mono- substituted amino or di-substituted amino.
• the organic substituent groups can comprise from 1 to 12 carbon atoms, or from 1 to 6 carbon atoms, or from 1 to 4 carbon atoms.
• cycloalkenyl denotes a cycloalkyl radical as defined above that comprises at least one carbon-carbon double bond. Examples include but are not limited to cyclopropenyl, 1-cyclobutenyl, 2-cyclobutenyl, 1 -cyclopentenyl, 2- cyclopentenyl, 3-cyclopentenyl, 1-cyclohexyl, 2-cyclohexyl, 3-cyclohexyl and the like.
• substituted cycloalkenyl denotes a cycloalkyl as defined above further substituted with one or more groups selected from halogen, alkyl, hydroxyl, alkoxy, substituted alkoxy, haloalkoxy, carboxy, carboalkoxy, alkylcarboxamide, substituted alkylcarboxamide, dialkylcarboxamide, substituted dialkylcarboxamide, amino, mono- substituted amino or di-substituted amino.
• the organic substituent groups can comprise from 1 to 12 carbon atoms, or from 1 to 6 carbon atoms, or from 1 to 4 carbon atoms.
• alkoxy denotes an alkyl residue, defined above, attached directly to a oxygen to form an ether residue. Examples include methoxy, ethoxy, n-propoxy, wo-propoxy, n-butoxy, t-butoxy, wo-butoxy and the like.
• substituted alkoxy denotes an alkoxy residue of the above definition that is substituted with one or more substituent groups, but preferably one or two groups, which include but are not limited to hydroxyl, cycloalkyl, amino, mono- substituted amino, di-substituted amino, acyloxy, nitro, cyano, carboxy, carboalkoxy, alkylcarboxamide, substituted alkylcarboxamide, dialkylcarboxamide, substituted dialkylcarboxamide, alkylsulfonyl, alkylsulfinyl, thioalkyl, thiohaloalkyl, alkoxy, substituted alkoxy or haloalkoxy. When more than one group is present then they can be the same or different.
• the organic substituent groups can comprise from 1 to 12 carbon atoms, or from 1 to 6 carbon atoms, or from 1 to 4 carbon atoms.
• mono-substituted amino denotes an amino substituted with one organic substituent groups, which include but are not limited to alkyl, substituted alkyl or arylalkyl wherein the terms have the same definitions found hereinabove.
• di-substituted amino denotes an amino residue substituted with two radicals that can be same or different selected from aryl, substituted aryl, alkyl, substituted alkyl or arylalkyl wherein the terms have the same definitions found throughout. Some examples include dimethylamino, methylethylamino, diethylamino and the like.
• haloalkyl denotes a alkyl residue as defined above, substituted with one or more halogens, preferably fluorine, such as a trifluoromethyl, pentafluoroethyl and the like.
• haloalkoxy denotes a haloalkyl residue as defined above, that is directly attached to an oxygen to form trifluoromethoxy, pentafluoroethoxy and the like.
• acyl denotes a R-C(O)- residue containing 1 to 8 carbons. Examples include but are not limited to formyl, acetyl, propionyl, butanoyl, iso- butanoyl, pentanoyl, hexanoyl, heptanoyl, benzoyl and the like.
• acyloxy denotes a an acyl radical as defined above directly attached to an oxygen to form an R-C(O)O- residue. Examples include but are not limited to acetyloxy, propionyloxy, butanoyloxy, tso-butanoyloxy, benzoyloxy and the like.
• aryl denotes a ring radical containing 6 to 18 carbons, or preferably 6 to 12 carbons, having at least one six-membered aromatic "benzene” residue therein.
• aryl radicals include phenyl and naphthyl.
• substituted aryl denotes an aryl ring radical as defined above that is substituted with one or more, or preferably 1 , 2, or 3 organic or inorganic substituent groups, which include but are not limited to a halogen, alkyl, substituted alkyl, hydroxyl, cycloalkyl, amino, mono- substituted amino, di-substituted amino, acyloxy, nitro, cyano, carboxy, carboalkoxy, alkylcarboxamide, substituted alkylcarboxamide, dialkylcarboxamide, substituted dialkylcarboxamide, alkylsulfonyl, alkylsulfinyl, thioalkyl, thiohaloalkyl, alkoxy, substituted alkoxy or haloalkoxy, aryl, substituted aryl, heteroaryl, heterocyclic ring, substituted heterocyclic ring wherein the terms are defined herein.
• the organic substituent groups can comprise from 1 to
• heteroaryl denotes an aryl ring radical as defined above, wherein at least one of the carbons, or preferably 1, 2, or 3 carbons of the aryl aromatic ring has been replaced with a heteroatom, which include but are not limited to nitrogen, oxygen, and sulfur atoms.
• heteroaryl residues include pyridyl, bipyridyl, furanyl, and thiofuranyl residues.
• Substituted "heteroaryl” residues can have one or more organic or inorganic substituent groups, or preferably 1, 2, or 3 such groups, as referred to herein-above for aryl groups, bound to the carbon atoms of the hetero aromatic rings.
• the organic substituent groups can comprise from 1 to 12 carbon atoms, or from 1 to 6 carbon atoms, or from 1 to 4 carbon atoms.
• halo or halogen refers to a fluoro, chloro, bromo or iodo group.
• thioalkyl denotes a sulfide radical containing 1 to 8 carbons, linear or branched. Examples include methylsulfide, ethyl sulfide, isopropylsulfide and the like.
• thiohaloalkyl denotes a thioalkyl radical substituted with one or more halogens. Examples include trifluoromethylthio, 1,1-difluoroethylthio, 2,2,2- trifluoroethylthio and the like.
• carboalkoxy refers to an alkyl ester of a carboxylic acid, wherein alkyl has the same definition as found above. Examples include carbomethoxy, carboethoxy, carboisopropoxy and the like.
• alkylcarboxamide denotes a single alkyl group attached to the amine of an amide, wherein alkyl has the same definition as found above. Examples include
• substituted alkylcarboxamide denotes a single "substituted alkyl” group, as defined above, attached to the amine of an amide.
• dialkylcarboxamide denotes two alkyl or arylalkyl groups that are the same or different attached to the amine of an amide, wherein alkyl has the same definition as found above.
• Examples of a dialkylcarboxamide include NJV- dimethyl carboxamide, N-methyl-N-ethylcarboxamide and the like.
• substituted dialkylcarboxamide denotes two alkyl groups attached to the amine of an amide, where one or both groups is a “substituted alkyl", as defined above. It is understood that these groups can be the same or different. Examples include NJV- dibenzylcarboxamide, N-benzyl-N-methylcarboxamide and the like.
• arylalkyl defines an alkylene, such as -CH 2 - for example, which is substituted with an aryl group that can be substituted or unsubstituted as defined above.
• alkylene such as -CH 2 - for example
• aryl group that can be substituted or unsubstituted as defined above.
• Examples of an “arylalkyl” include benzyl, phenethylene and the like.
• a residue of a chemical species refers to a structural fragment, or a moiety that is the resulting product of the chemical species in a particular reaction scheme or subsequent formulation or chemical product, regardless of whether the structural fragment or moiety is actually obtained from the chemical species.
• an ethylene glycol residue in a polyester refers to one or more -OCH 2 CH 2 O- repeat units in the polyester, regardless of whether ethylene glycol is used to prepare the polyester.
• a 2,4-thiazolidinedione residue in a chemical compound refers to one or more -2,4-thiazolidinedione moieties of the compound, regardless of whether the residue was obtained by reacting 2,4- thiazolidinedione to obtain the compound.
• organic residue defines a carbon containing residue, i.e. a residue comprising at least one carbon atom, and includes but is not limited to the carbon- containing groups, residues, or radicals defined hereinabove.
• Organic residues can contain various heteroatoms, or be bonded to another molecule through a heteroatom, including oxygen, nitrogen, sulfur, phosphorus, or the like. Examples of organic residues include but are not limited alkyl or substituted alkyls, alkoxy or substituted alkoxy, mono or di-substituted amino, amide groups, etc.
• Organic resides can preferably comprise 1 to 18 carbon atoms, 1 to 15, carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms.
• a very close synonym of the term “residue” is the term "radical,” which as used in the specification and concluding claims, refers to a fragment, group, or substructure of a molecule described herein, regardless of how the molecule is prepared.
• a 2,4-thiazolidinedione radical in a particular compound has the structure
• radical for example an alkyl
• substituted alkyl can be further modified (i.e., substituted alkyl) by having bonded thereto one or more "substituent radicals.”
• the number of atoms in a given radical is not critical to the present invention unless it is indicated to the contrary elsewhere herein.
• Inorganic radicals contain no carbon atoms and therefore comprise only atoms other than carbon.
• Inorganic radicals comprise bonded combinations of atoms selected from hydrogen, nitrogen, oxygen, silicon, phosphorus, sulfur, selenium, and halogens such as fluorine, chlorine, bromine, and iodine, which can be present individually or bonded together in their chemically stable combinations.
• Inorganic radicals have 10 or fewer, or preferably one to six or one to four inorganic atoms as listed above bonded together. Examples of inorganic radicals include, but not limited to, amino, hydroxy, halogens, nitro, thiol, sulfate, phosphate, and like commonly known inorganic radicals.
• the inorganic radicals do not have bonded therein the metallic elements of the periodic table (such as the alkali metals, alkaline earth metals, transition metals, lanthanide metals, or actinide metals), although such metal ions can sometimes serve as a pharmaceutically acceptable cation for anionic inorganic radicals such as a sulfate, phosphate, or like anionic inorganic radical.
• Inorganic radicals do not comprise metalloids elements such as boron, aluminum, gallium, germanium, arsenic, tin, lead, or tellurium, or the noble gas elements, unless otherwise specifically indicated elsewhere herein.
• Organic radicals as the term is defined and used herein contain one or more carbon atoms.
• An organic radical can have, for example, 1-26 carbon atoms, 1-18 carbon atoms, 1-12 carbon atoms, 1-8 carbon atoms, or 1-4 carbon atoms.
• Organic radicals often have hydrogen bound to at least some of the carbon atoms of the organic radical.
• One example, of an organic radical that comprises no inorganic atoms is a 5, 6, 7, 8-tetrahydro-2-naphthyl radical.
• an organic radical can contain 1-10 inorganic heteroatoms bound thereto or therein, including halogens, oxygen, sulfur, nitrogen, phosphorus, and the like.
• organic radicals include but are not limited to an alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, mono-substituted amino, di-substituted amino, acyloxy, cyano, carboxy, carboalkoxy, alkylcarboxamide, substituted alkylcarboxamide, dialkylcarboxamide, substituted dialkylcarboxamide, alkylsulfonyl, alkylsulfinyl, thioalkyl, thiohaloalkyl, alkoxy, substituted alkoxy, haloalkyl, haloalkoxy, aryl, substituted aryl, heteroaryl, heterocyclic, or substituted heterocyclic radicals, wherein the terms are defined elsewhere herein.
• organic radicals that include heteroatoms include alkoxy radicals, trifluoromethoxy radicals, acetoxy radicals, dimethylamino radicals and the like.
• amide as defined hereby and used in the instant specification refers to a functional group or residue that contains a carbonyl (CO) group bound to a nitrogen atom, i.e. a residue having the formula:
• any molecule or compound that comprises the above functional group or reside can be termed an amide, regardless of the identity of the three unspecified substituent groups.
• the resulting compound would be described herein as an "amide.”
• the substituent of the carbonyl group were a 2 nd nitrogen atom, as shown below, the resulting compound would still be termed an "amide” herein, even though many of ordinary skill in the art might often use a more specific term, such as "urea.”
• the substituent of the carbonyl group were an oxygen atom, the compound would still be termed an amide herein, even though the more specific term "urethane" might alternatively be employed.
• Some disclosed embodiments of the invention relate to a genus of compounds of Formula (200):
• the B, H, I, J and K residues are independently selected from -C(O)-, -C(S)-, -O-, -S-, -N(R 10 ,)-,-N(R,o2h -C(Ri 03 )(Rio4)-, -C(R,os)(Rio6)-, or -C(R 107 )(R ⁇ 08 )- residues, and from zero to two of the B, H, I, J or K residues can be absent; wherein: i) Rioi, R102, R103, R104, R105, R106, R107 and R ⁇ 08 are independently selected from hydrogen, hydroxyl, a halogen, amino, or an organic residue comprising 1 to 12 carbon atoms; or two of the R101, R102, R103, R104, Rios, 106 ) R107 and Rios residues can be connected together to form an exocyclic substituent residue comprising 1 to 6
• R x is a R 10 1 or R 102 residue
• Ar 5 is an aryl, substituted aryl, heteroaryl, or substituted heteroaryl residue comprising from 3 to 6 ring carbon atoms and from 0 to 3 optional ring heteroatoms selected from O, S, orN
• Ar is an aryl, substituted aryl, heteroaryl, or substituted heteroaryl residue comprising from 2 to 6 ring carbon atoms and from 0 to 3 optional ring heteroatoms selected from O, S, or N
• R ⁇ o 9 is hydrogen, hydroxy, or an organic residue comprising 1 to 10 carbon atoms; e) is either present or absent;
• W, X, Y and Z are independently or together -C(O)-, -C(S)-, -S-, -O- or -NH-, to form a 2,4-thiazolidinedione, 2-thioxo-thiazolidine-4-one, 2,4- imid
• the W, X, Y and Z radicals, together with a carbon atom form one of four separate five membered heterocycles, selected from a 2,4-thiazolidinedione, 2-thioxo-thiazolidine-4-one, 2,4- imidazolidinedione or 2-thioxo-imidazolidine-4-one residue, as shown in the drawing below:
• the 2,4-thiazolidinedione, 2- thioxo-thiazolidine-4-one, 2,4-imidazolidinedione or 2-thioxo-imidazolidine-4-one heterocyclic residues can be generically termed an "HAr" heterocyclic residue or radical.
• HAr an alternative description embodying the invention, which is closely related to the genus of compounds of formula 200 described above can be recited. This alternative description relates to a genus of compounds having the structure
• Ar 5 is an aryl, substituted aryl, heteroaryl, or substituted heteroaryl;
• B, H, I, J and K are independently selected from -C(O , -C(S)-, -O-, -S- , -N(R ⁇ o ⁇ )-, -N(R 102 )-, -C(R 103 )(Ri04h -C(R 105 )(R ⁇ o6)-, or -C(R 107 )(R ⁇ 08 )-
• R x is a Rioi or R102 radical; iii) Ar 5 together with B, H, I, J and K comprise from 2 to 24 carbon atoms; c) Ar 6 is an aryl, substituted aryl, heteroaryl, or substituted heteroaryl comprising from 2 to 18 carbon atoms; d) R ⁇ o 9 is hydrogen, hydroxy, or an organic radical comprising 1 to 10 carbon atoms; e) is either present or absent; f) HAr is a heterocycle having the structure
• Ar 5 is an aryl, substituted aryl, heteroaryl, or substituted heteroaryl residue or radical.
• aryl radicals have at least one six- membered aromatic "benzene" residue therein, although additional aromatic rings might be attached thereto, so as to form, for example, a naphthalene or biphenyl radical.
• the aryl ring residues are bonded to the Ar 6 radical, and have bonded thereto a non- aromatic ring residue comprising one or more of the B, H, I, J and K residues.
• Ar 5 is a benzene radical, which can be optionally additionally substituted with one or more additional organic or inorganic radicals or residues.
• Ar 5 can also comprise a heteroaryl radical or residue, wherein the term is defined elsewhere herein.
• the heteroaryl ring residue is bonded to the Ar 6 radical and a non-aromatic heterocyclic ring residue comprising one or more of the B, H, I, J and K residues.
• Ar 5 comprises a pyridine, pyrimidine, or pyrazine ring.
• the aryl or heteroaryl ring residues can optionally and additionally have one, two, or more additional substituent residues or radicals bonded to the aryl or heteroaryl rings, so as to comprise a "substituted aryl" or “substituted heteroaryl” residue or radical, as the terms are defined elsewhere herein.
• the additional substituents can be selected from organic residues, inorganic radicals, or organic radicals as those terms are defined elsewhere herein.
• the Ar 5 aryl or heteroaryl ring is substituted with one or two additional substituents independently selected from a halogen, an amino, or a radical comprising 1 to 4 carbon atoms selected from an alkyl, a monosubstituted amino, a disubstituted amino, an alkoxy, or a haloalkoxy.
• Ar 5 is a benzene ring, optionally substituted with one additional substituent selected from a halogen, an amino, or a radical comprising 1 to 4 carbon atoms selected from an alkyl, a monosubstituted amino, a disubstituted amino, an alkoxy, or a haloalkoxy.
• An example of a substituted Ar 5 radical comprising a benzene ring and one additional substituent would be a radical having the structure shown below, wherein R a is the additional substituent residue or radical.
• the Ar 5 radical is also bonded to a non-aromatic heterocyclic ring residue comprising one or more of the B, H, I, J and K residues, wherein the non-aromatic heterocyclic ring residue is bound to adjacent carbon atoms on the Ar 5 aryl or heteroaryl ring.
• One or two of the B, H, I, J and K residues can optionally be absent. Therefore, the non- aromatic heterocyclic ring residue can form five, six, or seven membered rings, wherein the carbons that are part of the Ar aryl or heteroaryl ring are also considered to be part of the non-aromatic heterocyclic ring residue.
• the B, H, I, J and K residues are independently selected from -C(O)-, -C(S)-,
• Rios, Ri06 > R107 and ⁇ o 8 can be independently selected from hydrogen, hydroxyl, a halogen, amino, or an organic radicals. In many embodiments, suitable organic radicals for R101, R102 .
• Rio3, R104, Rios, R106, R107 and Rios comprise 1 to 12 carbon atoms, 1 to 6 carbon atoms, or 1 to 4 carbon atoms.
• lower alkyl radicals such as methyl, ethyl, n- propyl, i-propyl, n-butyl, i-butyl, and t-butyl are particularly suitable R101, R1 0 2, R10 3 , R104, Rios, R106, R107 or Rj 08 substituents.
• the heterocyclic amide compounds of the invention including the Ar 5 radical together with the non-aromatic heterocyclic ring residue and any additional substituent radicals for Ar 5 are selected so that the Ar 5 radical has a geometry, size, and polarity that is suitable to allow the compounds of the invention to interact with and substantially fill, yet fit within the binding regions of the target biological molecules, so as to contribute to the effective binding of the compounds to the binding sites in the biological target molecules.
• the Ar 5 radical, together with the non-aromatic heterocyclic ring residue and any additional substituent radicals for Ar 5 comprises from 2 to 24 carbon atoms, or from 3 to 20 carbon atoms, or from 4 to 18 carbon atoms, or from 5 to 16 carbon atoms.
• the B, H, I, J and K residues together with the Ar 5 form a non-aromatic heterocyclic ring containing at least one amide residue.
• the amide residues as defined elsewhere herein for the purposes of this disclosure have the structure indicated below, wherein R x is a Rioi or R1 02 residue.
• ring radical comprising the Ar 5 ring and the non-aromatic heterocyclic ring comprising B, H, I, J and K would have the structure shown immediately below:
• R x is a R1 01 or R 102 residue.
• the J atom or residue could be one of several alternatives. If the J atom or residue was a -C(R ⁇ o 3 )(R ⁇ o4)- residue, the resulting structure would be:
• Such cyclic compounds comprising an amide group whose carbonyl carbon is bound to another carbon are often termed "lactams.”
• J is an oxygen atom, the resulting compounds are termed
• the B, H, I, J or K residues could be absent.
• the B and K residues are bound to two adjacent carbon atoms on the Ar 5 aryl or heteroaryl ring. Therefore the ring comprising the B, H, I, J and K residues often comprise 5, 6, or 7 ring atoms and the B, H, I, J and K residues form at least one amide residue.
• B, H, I, J and K together with Ar 5 form a ring containing at least one amide residue having one of the Formulas (205a-k) wherein Ar 5 is benzene or a substituted benzene radical.
• Ar 5 is a heteroaryl, such as pyridine, pyrimidene, pyrazine, and the like:
• R101, R102, R103, R104, Rios, R106, R107, Rios, R110, R111 or Rn 2 can be independently selected from inorganic substituents, which include but are not limited to inorganic substituents such as hydrogen, halogen, cyano, nitro, hydroxyl, or amino.
• R m , R102, R103, R104, Rios, Rio ⁇ , R107, Rios, R110, Rm or R n2 can also be independently selected from organic residues or organic radicals, as those terms are defined elsewhere herein.
• suitable organic residues or radicals include but are not limited to an alkyl, substituted alkyl, haloalkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, acyloxy, amino, mono-substituted amino, di-substituted amino, alkylsulfonamide, arylsulfonamide, alkylurea, arylurea, alkylcarbamate, arylcarbamate, aryl, heteroaryl, alkoxy, substituted alkoxy, haloalkoxy, thioalkyl, thiohaloalkyl, carboxy, carboalkoxy, alkylcarboxamide, substituted alkylcarboxamide, dialkylcarboxamide or substituted dialkylcarboxamide residue.
• preferred R 10 ⁇ , R102, R103, R104, Rios, R106, R107, Rios, R110, Rm or R n2 groups are an alkyl, substituted alkyl, haloalkyl, alkoxy, substituted alkoxy, or haloalkoxy residues, particularly those comprising from 1 to 12 carbons, 1 to 6 carbons, or 1 to four carbons.
• the residue bonded to the nitrogen atom of the amide groups can hydrogen or an organic radical comprising 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms.
• R10 1 or R 102 is a lower alkyl group, such as methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, or t- butyl.
• methyl, ethyl, or i-propyl radicals are preferred R 101 or R10 2 residues.
• Rioi is hydrogen, alkyl or substituted alkyl. Some examples Rioi is a straight or branched alkyl of C ⁇ -C ⁇ 2 . In other examples Rioi is a straight or branched alkyl of C ⁇ -C 8 . In still other examples Rioi is a straight or branched alkyl of C ⁇ -C 6 . In yet other examples Rioi is a straight or branched alkyl of C ⁇ -C .
• Some embodiments of the invention relate to compounds of Formula (200) wherein the two R substituents of -C(R ⁇ o 3 )(R ⁇ o4)-, -C(R ⁇ os)(R ⁇ o6)-, or -C(R ⁇ o7)(R ⁇ o8)-, together form an exocyclic cycloalkyl ring, which can optionally contain O, S or N- alkyl atom groups within the ring.
• the exocyclic cycloalkyl ring comprises from 3 to 6 ring carbon atoms.
• Representative examples include cyclopropyl, cyclobutyl, cyclopentyl, and cyclohexyl exocyclic rings.
• Representative examples of compounds comprising a five membered lactam ring wherein - C(R ⁇ o 3 )(R ⁇ o 4 )- together form an exocyclic cycloalkyl include those of Formulae (209a- c).
• One or two of the carbons of the exocyclic rings could optionally be replaced with an O, S or N-alkyl residue, to form tetrahydrofuranyl, tetrahydropyrrolidinyl, and tetrahydrothiofuranyl and like exocyclic ring radicals.
• Some embodiments of the invention relate to compounds wherein - C(R ⁇ o 5 )(R ⁇ o 6 )- fo ⁇ n an exocyclic cycloalkyl optionally substituted with O, S or N-alkyl.
• Representative examples of compounds for (205b) wherein -C(Rio 3 )(Rio4)- together form a cycloalkyl optionally substituted with O, S or N-alkyl include those of Formulae (209d-f).
• Some embodiments of the invention relate to compounds of Formula (200) wherein -C(Ri0 7 )( i 08 )- fo ⁇ n a cycloalkyl optionally substituted with O, S or N-alkyl.
• Some embodiments of the invention relate to compounds of Formula (200) where -C(Ri 03 )(Ri04)-,-C(Rios)(Rio6)- and -C(Ri 0 7)(Rios)- independently form a cycloalkyl optionally substituted with O, S or N-alkyl.
• Rioi is a substituted alkyl that include aryl alkyl, substituted-aryl alkyl and heteroaryl alkyl.
• Some representative examples are of the Formulae (210a-b):
• Ru 5 , Rn 6 , R117, R118 and R ⁇ 9 are independently or together hydrogen, alkyl, substituted alkyl, haloalkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, halogen, cyano, nitro, hydroxyl, acyloxy, amino, mono-substituted amino, disubstituted amino, alkylsulfonamide, arylsulfonamide, alkylurea, arylurea, alkylcarbamate, arylcarbamate, heteroaryl, alkoxy, substituted alkoxy, haloalkoxy, thioalkyl, thiohaloalkyl, carboxy, carboalkoxy, alkylcarboxamide, substituted alkylcarboxamide, dialkylcarboxamide or substituted dialkylcarboxamide; and N x represent the number of nitrogen in the ring wherein x is 1, 2 or 3 thus forming
• Rioi is a substituted alkyl that include heteroaryl alkyl.
• Some interesting heteroaryl residues are five membered rings, some examples include, but are not limited to those of the Formulae (212a-x):
• R ⁇ 5 , Rn 6 , Rn 7 , R ⁇ 8 and Ru 9 are independently or together hydrogen, alkyl, substituted alkyl, haloalkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, halogen, cyano, nitro, hydroxyl, acyloxy, amino, mono-substituted amino, disubstituted amino, alkylsulfonamide, substituted alkylsulfonamide, arylsulfonamide, heteroarylsulfonamide, alkylurea, alkylthiourea, arylurea, acyl, substituted acyl, alkylcarbamate, arylcarbamate, alkylthiocarbamate, substituted alkylthiocarbamate, arylthiocarbamate, heteroaryl, substituted heteroaryl, alkoxy, substituted alkoxy, haloalkoxy, thioalkyl,
• triazole (212e) can exist in several tautomeric forms when R 11 is hydrogen. These forms can be represented as shown:
• the compounds of the invention comprise an Ar 6 ring radical which is an aryl, substituted aryl, heteroaryl, or substituted heteroaryl residue, as those terms are defined elsewhere herein.
• Ar 6 is bonded to the aromatic ring of Ar , and to a carbon atom that bridges and is bonded to the HAr heterocycle.
• the atoms comprising the aromatic ring of Ar 6 can optionally be bonded to one, two, three, or four ring substituents, so as to form a substituted aryl or substituted heteroaryl ring, as those terms are defined elsewhere herein.
• the optional substituent residues or radicals bonded to Ar 6 can be selected from inorganic or organic radicals, as those terms are defined elsewhere herein.
• the heterocyclic amide compounds of the invention, including the Ar 6 radical together with any additional substituent radicals are selected so that the Ar 6 radical has a geometry, size, and polarity that is suitable to allow the compounds of the invention to interact with and substantially fill, yet fit within, the binding regions of the target biological molecules, so as to contribute to the effective binding of the compounds to the binding sites in the biological target molecules.
• the Ar 6 aryl or heteroaryl radical together any additional substituent radicals for comprises from 2 to 18 carbon atoms, or from 3 to 12 carbon atoms, or from 4 to 10 carbon atoms, or from 5 to 8 carbon atoms.
• Ar 6 is a substituted or unsubstituted six membered aromatic or heteroaromatic radical, such as a benzene, pyridine, pyrimidine, or pyrazine ring radical.
• any relative orientation of the bonds to Ar 5 and to the carbon atom that bridges to the HAr heterocycles i.e. ortho, meta, or para
• any relative orientation of the bonds to Ar 5 and to the carbon atom that bridges to the HAr heterocycles i.e. ortho, meta, or para
• a "meta” orientation of the bonds to Ar 5 and to the carbon atom that bridges to the HAr heterocycles can provide superior biological activity.
• Such "meta” Ar 6 rings can have additional substituents, as discussed above.
• Ar 6 has the Formula (215a), (215b), (215c) or (215d):
• R ⁇ 25 , R ⁇ 26 , R 12 7 and R ⁇ 28 can be independently selected from inorganic substituents which include but are not limited to hydrogen, halogen, nitro, hydroxyl, or amino, or organic residues or radicals, examples of which include but are not limited to an alkyl, substituted alkyl, haloalkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, cyano, acyloxy, mono-substituted amino, di-substituted amino, alkylsulfonamide, arylsulfonamide, alkylurea, arylurea, alkylcarbamate, arylcarbamate, heteroaryl, alkoxy, haloalkoxy, substituted alkoxy, haloalkoxy, thioalkyl, thiohaloalkyl, carboxy, carboalkoxy, alkylcarboxamide, substituted alkylcarboxamide, dial
• R ⁇ 25 is not hydrogen. Although the biochemical basis for the effect may not necessarily be well understood, it believed that the presence of a non-hydrogen R ⁇ 5 substituent can significantly and unexpectedly improve the activity of the compounds as agents for modulating lipid or carbohydrate metabolism, and/or producing anti-diabetic and/or anti-cholesteric activity.
• preferred R ⁇ 25 , residues are an alkyl, substituted alkyl, haloalkyl, alkoxy, substituted alkoxy, haloalkoxy, halogen, amino, mono-substituted amino, or disubstituted amino residue, particularly those comprising from 1 to 6 carbons, or 1 to four carbons.
• R 125 is a small organic radical such as a methoxy, trifiouromethoxy, dimethylamino, or chloride radical, so as to yield an Ar 6 radical comprising Formulas (217a), (217b), (217c) or (217d):
• R ⁇ 6 , R. 27 and R ⁇ 8 are independently or together hydrogen or halogen.
• the compounds of the invention have a carbon atom bonded to both the Ar 6 radical and the HAr heterocyclic radical, so as to bridge or link the Ar 6 radical and the HAr heterocyclic radical.
• the bridging carbon atom bears an R ⁇ o 9 substituent that can be selected from hydrogen, hydroxy, or an organic residue comprising 1 to 10 carbon atoms.
• R ⁇ o is selected from hydrogen, an alkyl, a substituted alkyl, hydroxy, an alkoxy or a haloalkoxy radical.
• R1 09 is hydrogen.
• the compound is a benzylidene compound having Formula (220):
• E and Z configurations of the carbon-carbon bond between the benzylidene carbon and the HAr heterocycle are within the scope of the invention.
• Either isomer can predominate or be present in pure form, or in a mixture, which may or may not have equal proportions of the E and Z isomers.
• 2,4-thiazolidinedione and 2-thioxo-4-thiazolidinedione of Formula (200) can have the following structures respectively:
• the compound in some embodiments represents a bond absent and the compound is a benzyl compound with a single carbon-carbon bond between a benzylic carbon and the HAr ring, the compounds having the Formula (222):
• the 5 membered heterocyclic ring radical comprising the W, X, Y, and Z groups form one of four heterocycles, selected from a 2,4- thiazolidinedione, 2-thioxo-thiazolidine-4-one, 2,4-imidazolidinedione or 2-thioxo- imidazolidine-4-one residue, which can be collectively termed "HAr" heterocycles.
• the four possible HAr heterocyclic residues are shown in the drawing below:
• All four of the HAr heterocycles shown above comprise at least one ring nitrogen atom bonded to a hydrogen atom.
• the nitrogen-bound hydrogen atoms of all four of the HAr heterocycles are known to be sufficiently acidic so as to react with common laboratory bases such as organic amine compounds, hydroxide salts, and the like.
• the acidity of the four HAr heterocycles provides a ready method for preparing salts of the compounds of the invention, by reaction with an appropriate base, so as to generate an anion from the compound of the invention and a cation derived from the base employed.
• the salts formed by such reactions have the structure
• bases could be employed to produce such salts, including monovalent alkali metal hydroxides, divalent alkaline earth metal hydroxides, or bases comprising trivalent metal salts such as aluminum.
• organic bases such as primary, secondary, or tertiary amines can react with the acidic hydrogens of the compounds of the invention to form ammonium salts.
• the base and/or its associated cation are chosen so as to provide desirable solubility, toxicity, and/or bioavailability characteristics in the salt after formation of the desired salts.
• the identity of the base and/or the resulting cation will of course vary somewhat with the identity of the compound of the invention, and the nature of the pharmaceutical composition to be employed and its physical form as a solid or liquid, and the nature of any solvents and/or carriers employed.
• one or more compounds disclosed herein can include zwitterionic salts formed by reaction of a nitrogen contained internally within the compound, such as an amine, aniline, substituted aniline, pyridyl and like residues with the acidic hydrogen of the HAr group.
• a basic nitrogen contained internally within the compound can be reacted with an external acid, such as HC1, sulfuric acid, a carboxylic acid or the like.
• Compounds disclosed herein can exist in various tautomeric forms. For example, 2,4-thiazolidinedione-containing compounds disclosed herein can exist in the form of tautomers (224a), (224b) and (224c).
• tautomers can also exist with compounds of the invention that contain the heterocycle 2-thioxo-thiazolidine-4-one, 2,4-imidazolidinedione or 2-thioxo-imidazolidine-4-one.
• all of the tautomers can be presented herein by a single formula, but it is understood that all tautomers are within the scope of the invention.
• Selected compounds of the invention can also be described more narrowly than the broadest embodiments described above. Two examples of such narrower descriptions are set forth below, but the meanings of the various relevant terms and symbols are intended the same as those same terms and symbols in the description above.
• the invention relates to a compound having the structure
• R 10 ⁇ , R102, R103, R104, Rios, Rio ⁇ , R ⁇ o, Rm and R M2 are independently selected from hydrogen, hydroxyl, a halogen, amino, or an organic residue comprising 1 to 6 carbon atoms;
• Ar 6 has the structure wherein R ⁇ 25 is halogen, or an organic substituent residue comprising 1 to 4 carbon atoms selected from alkyl, haloalkyl, cyano, amino, mono- substituted amino, di-substituted amino, alkoxy, or haloalkoxy; and R ⁇ 26 , R ⁇ 7 and R ⁇ s are independently selected from hydrogen, halogen, amino, and/or organic substituents comprising 1 to 4 carbon atoms selected from alkyl, haloalkyl, cyano, acyloxy, mono-substituted amino, di-substituted amino, alkoxy, or haloalkoxy; c) is either present or absent; and d) W, X,
• the invention relates to a compound having the structure
• Ar 6 has the structure wherein Rioi,Rio3, R104, Rios, R ⁇ o6 and Rno are independently selected from hydrogen, or an alkyl comprising 1 to 4 carbon atoms. b) Ar 6 has the structure wherein Rioi,Rio3, R104, Rios, R ⁇ o6 and Rno are independently selected from hydrogen, or an alkyl comprising 1 to 4 carbon atoms. b) Ar 6 has the structure wherein Rioi,Rio3, R104, Rios, R ⁇ o6 and Rno are independently selected from hydrogen, or an alkyl comprising 1 to 4 carbon atoms. b) Ar 6 has the structure
• R ⁇ 26 , R ⁇ 27 and R ⁇ 28 are independently selected from hydrogen or a halogen; and c) W, X, Y and Z together form a heterocyclic radical having the structure
• the present invention also provides, but is not limited to, the specific species compounds set forth in the Examples, or a pharmaceutically acceptable salt thereof: Making Compounds of the Invention
• FIG 8 A representative set of synthetic pathways is shown in Figure 8 for the synthesis of precursors of the Ar 5 radical and the attached non-aromatic heterocyclic ring comprising an amide group.
• One method of synthesizing precursors of the Ar 5 radical is shown in Figure 8, and begins with anilines of structure (230), many of which are commercially available from suppliers such as Aldrich Chemical Company of Milwaukee Wisconsin. Compounds of structure (230) can be coupled with an appropriately substituted acid chloride derivative of acrylic acid to give amide (232).
• the groups R1 03 , Rios, and R ⁇ o 6 can be introduced into compounds of the invention by the selection of the appropriately substituted acrylic acid chloride.
• acrylic acid chlorides are available by a variety of known methods, including as products of Wittig reactions of appropriate aldehydes and ketones with phosphorus ylids of haloacetic acid derivatives.
• Amide (232) can also be prepared by methods known in the art utilizing a carboxylic acid and a coupling agent such as, for example, a carbodiimide.
• the amide (232) is converted to 2-oxo- 1,2,3,4-tetrahydro-quinoline (234) through a Lewis Acid cyclization.
• One Lewis acid that can be utilized in the process is, for example, AICI 3 .
• R 101 can be introduced to give 2-oxo- 1,2,3, 4-tetrahydro- quinoline (236) by allowing R 101 -LG, wherein LG is a leaving group, such as, for example, Cl, Br, I, OTf, and the like, to react with the nitrogen anion of 2-oxo-l, 2,3,4- tetrahydro-quinoline (234).
• the anion of 2-oxo- 1,2,3, 4-tetrahydro-quinoline (234) can be generated using a base such as, for example, KOH/DMSO, NaH and the like.
• Another method for example, includes the use of aniline (237) that can be coupled with an acid chloride to give amide (238).
• the groups R1 03 and R 104 can be introduced into compounds of the invention by the selection of the appropriate acid chloride.
• Amide (238) can also be prepared by methods known in the art utilizing a carboxylic acid and a coupling agent such as, for example, a carbodiimide.
• R 101 can be introduced to give amide (240) by allowing R 101 -LG to react with the nitrogen anion of amide (238), wherein LG is a leaving group, such as, for example, Cl, Br, I, OTf, and the like.
• 2-oxo-2,3-dihydro-lH-indole (242) can be prepared from amide (240) through a Pd-assisted cyclization.
• ligands with Pd can be employed, such as, for example, tricyclohexyl-phosphine.
• the methoxy group of amide (242) can be converted to phenol (244) using a variety of methods known in the art, such as, for example, BBr .
• the resulting phenol (244) can be converted into triflate (246), or the like, using triflic anhydride or similar reagent that is suitable for coupling with Ar 6 .
• Another method includes the use of readily available phenyl ene diamines of structure (248), that can be condensed with oxylyl chloride to give quinoxaline-2,3-dione (250).
• Rioi can be introduced by allowing R 101 -LG to react with the nitrogen anion of quinoxaline-2,3-dione (250), wherein LG is a leaving group, such as, for example, Cl, Br, I, OTf, and the like.
• R102 can be introduced by allowing Rior LG to react with the nitrogen anion of quinoxaline-2,3-dione (250), wherein LG is a leaving group, such as, for example, Cl, Br, I, OTf, and the like.
• R 10 ⁇ and R 102 can be the same or different.
• Quinoxaline-2,3-dione (252) can be brominated to give quinoxaline-2,3-dione (254) using methods known in the art, such as, for example, Br 2 or equivalent, in an appropriate solvent, such as acetic acid. Bromination might also be carried out prior to the introduction of R101 and R ⁇ 02 .
• Various synthetic methods can be employed in coupling Ar 5 and Ar 6 . A representative set of synthetic pathways is shown in Figure 9.
• Coupling reactions such as that described for the formation of Biaryl (266) and (270) can also be conducted using boronic esters, such as where R ⁇ 4 o together with the boron from a pinacol borate ester (formation of pinacol esters: Ishiyama, T., et al., J. Org.
• Biaryl (270) can also be acylated, for example by the Friedel-Crafts Acylation reaction (using an acid chloride) or the like to give biaryl (266) where R ⁇ o 9 is not hydrogen.
• biaryl (270) is formylated by first performing a halogenation step to give biaryl (272), such as a bromination, followed by a halogen-metal exchange reaction using an alkyl lithium or lithium tributylmagnesate complex as described by Iida, et. al. in Tetrahedron Letters 2001, 42, 4841-4844 and reaction with DMF or equivalent known in the art to give biaryl (266) where R[ 0 is H.
• the carbonyl group of biaryl (266) can subsequently be condensed with a heterocycle possessing an active methylene moiety, such as 2,4-thiazolidinedione, 2-thioxo- thiazolidine-4-one, 2,4-imidazolidinedione or 2-thioxo-imidazolidine-4-one to give benzylidene (274).
• a heterocycle possessing an active methylene moiety such as 2,4-thiazolidinedione, 2-thioxo- thiazolidine-4-one, 2,4-imidazolidinedione or 2-thioxo-imidazolidine-4-one to give benzylidene (274).
• anions of other heterocycles disclosed herein can be used.
• aryl (282) can be coupled with boronic acid (286) to give biaryl (270).
• biaryl (270) can be converted to biaryl (266).
• Coupling of two aryl rings can be conducted using an aryl boronic acid or esters with an aryl halide (such as, iodo, bromo, or chloro), triflate or diazonium tetrafluoroborate; as described respectively in Suzuki, Pure & Applied Chem., 66:213- 222 (1994), Miyaura and Suzuki, Chem. Rev. 95:2457-2483 (1995), Watanabe, Miyaura and Suzuki, Synlett. 207-210 (1992), Littke and Fu, Angew. Chem. Int.
• an aryl halide such as, iodo, bromo, or chloro
• triflate or diazonium tetrafluoroborate as described respectively in Suzuki, Pure & Applied Chem., 66:213- 222 (1994), Miyaura and Suzuki, Chem. Rev. 95:2457-2483 (1995), Watanabe, Miyaura
• Ruo is either alkyl, cycloalkyl (i.e., pinacol) or hydrogen and R ⁇ 50 is a halide (such as, iodo, bromo, or chloro), triflate or diazonium tetrafluoroborate.
• R ⁇ 50 is a halide (such as, iodo, bromo, or chloro), triflate or diazonium tetrafluoroborate.
• the coupling groups can be reversed, such as the use of (282) and (284), to achieve the same coupling product:
• the coupling reaction can also be conducted between an arylzinc halide and an aryl halide or triflate.
• the coupling reaction can also be executed using an aryl trialkyltin derivative and an aryl halide or triflate.
• These coupling methods are reviewed by Stanforth, Tetrahedron 54:263-303 (1998) and incorporated herein by reference.
• the utilization of a specific coupling procedure is selected with respect to available precursors, chemoselectivity, regio selectivity and steric considerations.
• Condensation of the biaryl carbonyl containing derivatives e.g., Figure 9, compound (266)
• a suitable active methylene compound such as, 2,4- thiazolidinedione
• the biaryl carbonyl product from the coupling reaction can be condensed with an active methylene compound to give a benzylidene compound of Formula (200) (i.e., is a bond) as described by Tietze and Beifuss, Comprehensive Organic Synthesis (Pergamon Press), 2:341-394, (1991), incorporated herein by reference. It is understood by those skilled in the art that intermediates having hydroxyl groups bonded thereto can be formed during condensation of a biaryl carbonyl containing derivative and an active methylene compound, as shown below.
• Effective catalysts for the condensation can be selected from ammonia, primary, secondary and tertiary amines, either as the free base or the amine salt with an organic acid, such as acetic acid.
• examples of catalysts include pyrrolidine, piperidine, pyridine, diethylamine and the acetate salts thereof.
• Inorganic catalysts can also be used for the condensation. Inorganic catalysts include, but are not limited to, titanium tetrachloride and a tertiary base, such as pyridine; and magnesium oxide or zinc oxide in an inert solvent system.
• preferable solvents include ethanol, tetrahydrofuran, dioxane or toluene; or mixtures thereof.
• the invention relates to methods for preparing the compounds of the invention, wherein the method comprises a) coupling i) an Ar 5 precursor compound having the structure
• the methods of making the compounds of the invention further comprise steps wherein the further reacting comprises condensing the carbonyl containing precursor compound with a compound having the structure
• the compounds described herein can be administered as pure chemicals, it is preferable to present the active ingredient as a pharmaceutical composition.
• a pharmaceutical composition comprising one or more compounds and/or a pharmaceutically acceptable salt thereof, together with one or more pharmaceutically acceptable carriers thereof and, optionally, other therapeutic and/or prophylactic ingredients.
• the carrier(s) must be 'acceptable' in the sense of being compatible with the other ingredients of the composition and not overly deleterious to the recipient thereof.
• compositions include those suitable for oral, enteral, parental (including intramuscular, subcutaneous and intravenous), topical, nasal, vaginal, ophthalinical, sublingually or by inhalation administration.
• the compositions can, where appropriate, be conveniently presented in discrete unit dosage forms and can be prepared by any of the methods well known in the art of pharmacy. Such methods include the step of bringing into association the active compound with liquid carriers, solid matrices, semi-solid carriers, finely divided solid carriers or combination thereof, and then, if necessary, shaping the product into the desired delivery system.
• compositions suitable for oral administration can be presented as discrete unit dosage forms such as hard or soft gelatin capsules, cachets or tablets each containing a predetermined amount of the active ingredient; as a powder or as granules; as a solution, a suspension or as an emulsion.
• the active ingredient can also be presented as a bolus, electuary or paste.
• Tablets and capsules for oral administration can contain conventional excipients such as binding agents, fillers, lubricants, disintegrants, or wetting agents.
• the tablets can be coated according to methods well known in the art., e.g., with enteric coatings.
• Oral liquid preparations can be in the form of, for example, aqueous or oily suspensions, solutions, emulsions, syrups or elixirs, or can be presented as a dry product for constitution with water or other suitable vehicle before use.
• Such liquid preparations can contain conventional additives such as suspending agents, emulsifying agents, non-aqueous vehicles (which can include edible oils), or one or more preservative.
• the compounds can also be formulated for parenteral administration (e.g., by injection, for example, bolus injection or continuous infusion) and can be presented in unit dose form in ampules, pre-filled syringes, small bolus infusion containers or in multi-does containers with an added preservative.
• the compositions can take such forms as suspensions, solutions, or emulsions in oily or aqueous vehicles, and can contain formulatory agents such as suspending, stabilizing and/or dispersing agents.
• the active ingredient can be in powder form, obtained by aseptic isolation of sterile solid or by lyophilization from solution, for constitution with a suitable vehicle, e.g., sterile, pyrogen-free water, before use.
• the compounds can be formulated as ointments, creams or lotions, or as the active ingredient of a transdermal patch.
• Suitable transdermal delivery systems are disclosed, for example, in Fisher et al. (U.S. Patent (No. 4,788,603, incorporated herein by reference) or Bawas et al. (U.S. Patent No. 4,931,279, 4,668,504 and 4,713,224; all incorporated herein by reference).
• Ointments and creams can, for example, be formulated with an aqueous or oily base with the addition of suitable thickening and/or gelling agents.
• Lotions can be formulated with an aqueous or oily base and will in general also contain one or more emulsifying agents, stabilizing agents, dispersing agents, suspending agents, thickening agents, or coloring agents.
• the active ingredient can also be delivered via iontophoresis, e.g., as disclosed in U.S. Patent Nos. 4,140,122, 4383,529, or 4,051,842; incorporated herein by reference.
• compositions suitable for topical administration in the mouth include unit dosage forms such as lozenges comprising active ingredient in a flavored base, usually sucrose and acacia or tragacanth; pastilles comprising the active ingredient in an inert base such as gelatin and glycerin or sucrose and acacia; mucoadherent gels, and mouthwashes comprising the active ingredient in a suitable liquid carrier.
• unit dosage forms such as lozenges comprising active ingredient in a flavored base, usually sucrose and acacia or tragacanth; pastilles comprising the active ingredient in an inert base such as gelatin and glycerin or sucrose and acacia; mucoadherent gels, and mouthwashes comprising the active ingredient in a suitable liquid carrier.
• compositions can be adapted to provide sustained release of the active ingredient employed, e.g., by combination thereof with certain hydrophilic polymer matrices, e.g., comprising natural gels, synthetic polymer gels or mixtures thereof.
• hydrophilic polymer matrices e.g., comprising natural gels, synthetic polymer gels or mixtures thereof.
• the pharmaceutical compositions according to the invention can also contain other adjuvants such as flavorings, coloring, antimicrobial agents, or preservatives.
• the invention relates to a pharmaceutical composition
• a pharmaceutical composition comprising one or more pharmaceutically acceptable carriers and one or more compounds of the invention, or a pharmaceutically acceptable salt thereof, in an amount that can be used to effectively treat diabetes, cancer, or atherosclerosis, or modulate lipid metabolism, carbohydrate metabolism, lipid and carbohydrate metabolism, or adipocyte differentiation, in a mammal.
• the compounds of the present invention have been found to be potent compounds in a number of biological assays, both in vitro and in vivo, that correlate to, or are representative of, human diseases.
• many of the compounds of the invention can induce the differentiation of preadipocytes into adipocytes.
• This biological activity (Harris and Kletzien, Mol. Pharmacol., 45:439-445 (1994); Wilson et al., J. Med. Chem. 39:665- 668 (1996)) has been observed for certain compounds that have antidiabetic activity in humans (Teboul et al., J. Biol. Chem. 270:28183-28187 (1995)) and has been used by many in the art to screen new compounds for anti-diabetic activity.
• the ability of the compounds to induce cells of the adipocyte lineage to differentiate can also correlate to the ability of the compounds to treat or prevent other diseases including proliferative diseases such as breast, prostate and other cancers.
• the compounds of the invention have been screened in an in- vitro adipocyte differentiation assay, as described in Example 26.
• Mouse pre-adipocyte 3T3-L1 cells were treated with compounds at concentrations less than or equal to 10 "6 M for 7 days.
• Pre-adipocyte cells that become differentiated into adipocytes begin to accumulate lipids, and accordingly can exhibit an increase in lipid content.
• Results from the testing are shown in Figure 1, wherein the lipid content of the cells after treatment with the compounds of the invention is displayed as a function of the identity of the compound and the concentration at which it was applied.
• the relative lipid content of the cells is plotted in Figure 1 relative to the results obtained by the application of compound 24, which has been shown to be a potent inducer of adipocyte differentiation, and also a compound that is useful for the treatment of diabetes.
• the compound can be applied at a concentration of about 1 x 10 " M for a period of about 7 days, to mouse preadipocyte 3T3-L1 cells, and measure the increase the lipid content of the cells.
• the compounds can be considered active for adipocyte differentiation if the lipid accumulation induced is at least about 20%, or at least about 40% of the lipid accumulation induced by 5-[3-(3,5,5,8,8-Pentamethyl-5,6,7,8-tetrahydro-naphthalen-2- yl)-4-trifluoromethoxy-benzylidene]-thiazolidine-2,4-dione when it is applied to control cultures of mouse preadipocyte 3T3-L1 cells at a concentration of about lxlO "7 M.
• the KKA ⁇ mice exhibit the most severe symptoms of type 2 diabetes, including hyperglycemia, hypertriglyceridemia and hypercholesterolemia, and therefore are often the most difficult to treat.
• the compounds of the invention were found to be very effective for simultaneously and beneficially decreasing serum glucose, serum triglyceride, and/or serum cholesterol in KKA y Mice.
• Atherosclerotic lesions results from Cholesterol-loaded macrophage foam cells [Gown et al. (1986) Am. J. Phathol. 125, 191-207].
• macrophages that are cholesterol-loaded in cell culture can unload excess cholesterol, which can be measured in a "Cholesterol Efflux Assay" (see example 29).
• the cholesterol released from the Macrophage Foam Cells can be metabolized by the liver and eliminated from the body. Therefore, novel therapeutic agents that increase cholesterol efflux from macrophages in arteriosclerotic lesions can improve the outcome for patients with coronary artery disease such as in obese and diabetes patients.
• the ability of a compound to reduce certain lipids such as cholesterol or to change the ratio of good versus bad cholesterol, i.e. HDL versus LDL, can be measured in animal models.
• One animal model commonly used for such testing is the diet- induced hypercholesterolemic wild type Sprague Dawley rat (see example 30).
• Oral bioavailability is an important pharmaceutical characteristic for a compound to advance through drug development.
• a basic assessment of the oral bioavailability of a compound can be done in a single dose pharmacokinetic study in wild type rats.
• Compounds disclosed herein are useful, for example, to modulate metabolism (such as, for example, lipid metabolism and carbohydrate metabolism) or adipocyte differentiation. Changes in carbohydrate metabolism can directly or indirectly also result in changes of lipid metabolism and, similarly, changes in lipid metabolism can lead to changes in carbohydrate metabolism.
• An example is type 2 diabetes where an increase in free fatty acids in the patients leads to decreased cellular uptake and metabolism of glucose.
• Carbohydrate metabolism can be up-regulated or down-regulated to either approach the level of carbohydrate metabolism in a control or to deviate from the level of carbohydrate metabolism in a control.
• the compounds of the invention can be effective to lower serum glucose levels of KKA y or db/db mice maintained on a high fat diet by at least about 5%, or at least about 10%, when orally administered to the mice at a concentration of about 0.3mg/kg for 7 days, as compared to control mice that do not receive the compounds.
• the compounds of the invention can be effective for treating type 2 diabetes. Therefore, in some embodiments, the invention relates to methods of treating type 2 diabetes comprising administering to a mammal diagnosed as needing such treatment, including humans, one or more compounds of the invention, or a pharmaceutically acceptable salt thereof, in an amount effective to treat type 2 diabetes. In some embodiments, the one or more compounds or salts are applied in an amount effective to decrease blood glucose levels in the mammal by at least about 5%, or at least about 10%.
• Modulation of lipid metabolism can include an increase of lipid content intracellularly or extracellularly. Modulation, for example, could involve increase in lipid metabolism, such that lipid metabolism is greater than that of a control. Modulation, also includes, for example, an increase in lipid metabolism, such that the lipid metabolism approaches that of a control.
• the compounds of the invention and their pharmaceutically acceptable salts can be employed to induce cholesterol efflux from Macrophage Foam Cells as described in Example 29, in order to treat atherosclerosis.
• Modulation of lipid metabolism could also include a decrease of lipid content intracellularly or extracellularly. Modulation of metabolism can occur directly for example, through binding of the compound of the invention with its cognate receptor, which directly affects an increase or decrease in lipid content by up-regulation or down-regulation of a gene involved in lipid metabolism. Modulation of metabolism can also occur indirectly, for example, through binding of the compound of the invention with its cognate receptor, which up-regulates or down-regulates cellular differentiation or growth of cells that produce lipids, thereby indirectly causing lipid metabolism to be modulated.
• the compounds of the invention can be effective to lower serum triglyceride levels of KKA y or db/db mice maintained on a high fat diet by at least about 5%, or at least about 10%, when orally administered to the mice at a concentration of about 0.3mg/kg for 7 days, as compared to control mice that do not receive the compounds.
• the invention relates to methods of treating dyslipidemia comprising administering to a mammal diagnosed as needing such treatment one or more compounds of the invention, or a pharmaceutically acceptable salt thereof, in an amount effective to decrease triglyceride levels in the animal.
• the invention relates to such methods wherein the one or more compounds or salts are applied in an amount effective to decrease triglyeride levels by at least about 5%, or at least about 10%.
• cholesterol is a lipid that is closely linked with many biochemical functions, but also with diseases such as atherosclerosis.
• the compounds of the invention can benefit modulate the level of cholesterol, including its manifestations in the HDL and LDL forms.
• the invention relates to a method of treating hypercholesterolemia comprising administering to a mammal diagnosed as needing such treatment one or more compounds the invention, or a pharmaceutically acceptable salt thereof.
• the methods apply the one or more compounds or salts in an amount effective to decrease serum cholesterol levels by at least about 5%, or at least about 10%., or to increase the concentration of HDL cholesterol, or decrease the concentration of LDL cholesterol, or increase the HDL/LDL ratio by at least about 5%, or at least about 10%.
• lipid molecules can be modulated.
• the compounds disclosed herein can modulate a single type of lipid molecule, such as a triglyceride, or the compounds disclosed herein can modulate multiple types of lipid molecules.
• the compounds disclosed herein can also modulate a single or variety of carbohydrate molecules.
• the compounds of the invention can simultaneously and beneficially regulate carbohydrate and lipid metabolism so as to simultaneously decrease levels of serum glucose, serum triglycerides, and serum cholesterol.
• Drugs having such a combination of beneficial properties are of very high value for simultaneous treatment of type 2 diabetes and/or its associated diseases, such as atherosclerosis.
• the amide compounds of the invention are also useful for inducing adipocyte differentiation, which can produce a modulation of the metabolism of lipids, including triglycerides and cholesterol.
• the compounds of the invention can be effective, when applied at a concentration of about 1 uM for a period of about 7 days, to induce differentiation of mouse preadipocyte 3T3-L1 cells so as to increase their lipid content by at least about 20%, or at least about 40%, or at least about 50%.
• Such activity for adipocyte differentiation is well known to those of skill in the art to be associated with activity for the treatment of diabetes, cancer, and/or inflammatory diseases. Inflammatory responses of macrophage foam cells are known to be involved in the formation atherosclerotic lesions.
• the compounds of the invention are believed to be involved in lessening such inflammatory responses, and/or inducing the macrophages to increase their release of cholesterol, so as to lessen the buildup of cholesterol in blood vessel walls. Therefore, the compounds of the invention are unexpectedly useful in treating diabetes and simultaneously treating the atherosclerosis, which often occurs in diabetic patients.
• the compounds of the invention are also useful for treating diseases of uncontrolled cellular proliferation, for which chronic inflammatory responses are known to be a factor, including various cancers.
• the composition can be useful in the treatment of polycystic kidney disease and cancers such as, carcinomas, lymphomas, leukemias, and sarcomas.
• a representative but non-limiting list of cancers is lymphoma, Hodgkin's Disease, myeloid leukemia, bladder cancer, brain cancer, head and neck cancer, kidney cancer, lung cancers such as small cell lung cancer and non- small cell lung cancer, myeloma, neuroblastoma/glioblastoma, ovarian cancer, pancreatic cancer, prostate cancer, skin cancer, liver cancer, melanoma, colon cancer, cervical carcinoma, breast cancer, and epithelial cancer.
• Compounds disclosed herein can also be used for the treatment of inflammatory diseases such as osteoarthritis, rheumatoid arthritis, Crohn's Disease, pulmonary fibrosis, and Inflammatory Bowel Disease.
• the invention relates to method of treating cancer comprising administering to a mammal diagnosed as needing such treatment one or more compounds of the invention, or a pharmaceutically acceptable salt thereof, in an amount effective to treat the cancer.
• the cancer treated is breast cancer.
• the compounds of the invention have suitably low molecular weights and good physiological stability.
• the compounds of the invention also have excellent oral bioavailability, as illustrated in Examples 27, 28, 30, 31, and 32, and therefore, represent a class that have superior pharmacological and physical properties that can be readily implemented to prevent, alleviate, and/or otherwise, treat disorders of lipid and carbohydrate metabolism, such as obesity, dyslipidemia, type 2 diabetes and other diseases related to type 2 diabetes.
• a preferred embodiment of the invention relates to the use of the compounds disclosed herein.
• the compounds disclosed herein can be either used singularly or plurally, and in pharmaceutical compositions thereof for the treatment of mammalian diseases, particularly those related to humans.
• Compounds disclosed herein and compositions thereof can be administered by various methods including, for example, orally, enterally, parentally, topically, nasally, vaginally, ophthalinically, sublingually or by inhalation for the treatment of diseases related to lipid metabolism, carbohydrate metabolism, lipid and carbohydrate metabolism such as polycystic ovary syndrome, syndrome X, type 2 diabetes, including disorders related to type 2 diabetes such as, diabetic retinopathy, neuropathy, macrovascular disease or differentiation of adipocytes.
• Routes of administration and dose ages known in the art can be found in Comprehensive Medicinal Chemistry, Volume 5, Hansch, C. Pergamon Press, 1990; incorporated herein by reference.
• the amount of the compound, or an active salt or derivative thereof, required for use in treatment will vary not only with the particular salt selected but also with the route of administration, the nature of the condition being treated and the age and condition of the patient and will be ultimately at the discretion of the attendant physician or clinician.
• a suitable dose will, in alternative embodiments, typically be in the range of from about 0.5 to about 100 mg/kg/day, from about 1 to about 75 mg/kg of body weight per day, from about 3 to about 50 mg per kilogram body weight of the recipient per day.
• the compound is conveniently administered in unit dosage form; for example, in alternative embodiments, containing 0.5 to 1000 mg, 5 to 750 mg, most conveniently, or 10 to 500 mg of active ingredient per unit dosage form.
• dosage and dosage forms outside these typical ranges can be tested and, where appropriate, be used in the methods of this invention.
• the active ingredient can be administered to achieve peak plasma concentrations of the active compound of from about 0.5 to about 75 ⁇ M, about 1 to 50 ⁇ M, or about 2 to about 30 ⁇ M. This can be achieved, for example, by the intravenous injection of a 0.05 to 5% solution of the active ingredient, optionally in saline, or orally administered as a bolus containing about 0.5-500 mg of the active ingredient. Desirable blood levels can be maintained by continuous infusion to provide about 0.01-5.0 mg/kg/hr or by intermittent infusions containing about 0.4-15 mg/kg of the active ingredients.
• the desired dose can conveniently be presented in a single dose or as divided doses administered at appropriate intervals, for example, as two, three, four or more sub-doses per day.
• the sub-dose itself can be further divided, e.g., into a number of discrete loosely spaced administrations; such as multiple inhalations from an insufflator or by application of a plurality of drops into the eye.
• the intermediate 3 -( 1 -Ethyl-4,4,6-trimethyl-2-oxo- 1 ,2,3 ,4-tetrahydro-quinolin- 7-yl)-4-trifluoromethoxy-benzaldehyde was prepared as follows: a. 3-(l-Ethyl-4,4,6-trimethyl-2-oxo-l,2,3,4-tetrahydro-quinolin-7-yl)-4- trifluoromethoxy-benzaldehyde.
• Tetrakis(triphenylphosphine)palladium(0) (1.34 g, 0.04 mmol) was added and the mixture heated at reflux under argon for 48 hrs. The solution was cooled to room temperature, diluted with ethyl acetate and washed successively with water and brine, dried over anhydrous magnesium sulfate, filtered and evaporated.
• reaction mixture was kept at 0°C for 30 min then slowly warmed up to room temperature and stirred overnight at room temperature.
• the reaction mixture was poured into water and extracted with dichloromethane washed with water and brine, dried (MgSO 4 ), filtered and evaporated to give 8.8 g of 7-bromo-l,4,4,6-tetramethyl-3,4-dihydro-lH-quinoline- 2-one and used without further purification in the Suzuki coupling (step a).
• Example 3 5-[4-Dimethylamino-3-(l ,4,4,6-tetramethyl-2-oxo-l ,2,3,4-tetrahydro- quinolin-7-yl)-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 3".
• Tetrakis(triphenylphosphine)palladiurn(0) (3.5 g, 0.06 mmol) was added and the mixture heated at reflux under argon for 24 hrs. The solution was cooled to room temperature, diluted with ethyl acetate and washed successively with water and brine, dried over anhydrous magnesium sulfate, filtered and evaporated.
• Example 4 5-[4-Dimethylamino-3-(l-ethyl-4,4,6-trimethyl-2-oxo-l,2,3,4-tetrahydro- quinolin-7-yl)-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 4".
• Example 5 5-[3-(l,4,4,6-Tetramethyl-2-oxo-l,2,3,4-tetrahydro-quinolin-7-yl)-4- chloro-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 5".
• Example 6 5-[3-(l-Ethyl-4,4,6-trimethyl-2-oxo-l,2,3,4-tetrahydro-quinolin-7-yl)-4- chloro-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 6".
• Example 7 5-[2-Fluoro-4-methoxy-3-(l,4,4,6-tetramethyl-2-oxo-l,2,3,4-tetrahydro- quinolin-7-yl)-benzylidene]-thiazolidine-2,4-dione, which can be refe ⁇ ed to as "Compound 7".
• the intermediate 2-Fluoro-4-methoxy-3-(l,4,4,6-tetramethyl-2-oxo-l,2,3,4- tetrahydro-quinolin-7-yl)-benzaldehyde was prepared as follows: a. 2-Fluoro-4-methoxy-3-(l,4,4,6-tetramethyl-2-oxo-l,2,3,4-tetrahydro- quinolin-7-yl)-benzaldehyde.
• Example 8 5-[3-(l-Propyl-4,4,6-trimethyl-2-oxo-l,2,3,4-tetrahydro-quinolin-7-yl)-4- trifluoromethoxy-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 8".
• Tetrakis(triphenylphosphine)palladium(0) (0.186 g, 0.161 mmol) was added and the mixture heated at reflux under argon for 24 hrs. The solution was cooled to room temperature, diluted with ethyl acetate and washed successively with water and brine, dried over anhydrous magnesium sulfate, filtered and evaporated.
• reaction mixture was poured into water and extracted with dichloromethane washed with water and brine, dried (MgSO 4 ), filtered and evaporated to give 4.0 g of 7-bromo-l-propyl-4,4,6-trimethyl-3,4-dihydro-lH-quinoline-2-one and used without further purification in the Suzuki coupling (step a).
• Example 9 5-[4-Dimethylamino-3-(l-propyl-4,4,6-trimethyl-2-oxo-l, 2,3,4- tetrahydro-quinolin-7-yl)-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 9".
• Example 10 5-[3-(l-Ethyl-4,4,6-trimethyl-2-oxo-l,2,3,4-tetrahydro-quinolin-7-yl)-2- fluoro-4-memoxy-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 10".
• Example 11 5-[3-(l-Isopropyl-4,4,6-trimethyl-2-oxo-l,2,3,4-tetrahydro-quinolin-7- yl)-4-trifluoromethoxy-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 11".
• Tetrakis(triphenylphosphine)palladium(0) (0.224 g, 0.194 mmol) was added and the mixture heated at reflux under argon for 24 hrs. The solution was cooled to room temperature, diluted with ethyl acetate and washed successively with water and brine, dried over anhydrous magnesium sulfate, filtered and evaporated.
• Example 12 5-[4-Dimethylamino-3-(l-isopropyl-4,4,6-trimethyl-2-oxo-l, 2,3,4- tetrahydro-quinolin-7-yl)-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 12".
• Example 13 5-[3-(l-Ethyl-4,4,6-trimethyl-2-oxo-l,2,3,4-tetrahydro-quinolin-7-yl)- 2,5-difluoro-4-methoxy-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 13".
• Example 14 5-[4-Ethylamino-3-(l -ethyl-4,4,6-trimethyl-2-oxo-l ,2,3,4-tetrahydro- quinolin-7-yl)-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 14".
• Example 15 6-[2-Dimethylamino-5-(2,4-dioxo-thiazolidin-5-ylidenemethyl)-phenyl]- l,4,7-trimethyl-l,4-dihydro-quinoxaline-2,3-dione, which can be referred to as "Compound 15".
• Example 16 5-[3-(l-Benzyl-3,3,5-trimethyl-2-oxo-2,3-dihydro-lH-indol-6-yl)-4- trifluoromethoxy-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 16".
• 3-(l-Benzyl-3,3,5-trimethyl-2-oxo-2,3-dihydro-lH-indol-6-yl)-4- trifluoromethoxy-benzaldehyde The intermediate 3-(l-Benzyl-3,3,5-trimethyl-2-oxo-2,3-dihydro-lH-indol-6- yl)-4-trifluoromethoxy-benzaldehyde was prepared in a similar manner to example la using 3 -formyl-6-trifluoromethoxy-l -phenyl boronic acid (Example lb) and trifluoro- methanesulfonic acid l-benzyl-3,3,5-trimethyl-2-oxo-2,3-dihydro-lH-indol-6-yl ester.
• Trifluoro-methanesulfonic acid l-benzyl-3,3,5-trimethyl-2-oxo-2,3- dihydro-lH-indol-6-yl ester.
• N-benzyl-N-(2-bromo-5-methoxy-4-methyl-phenyl)-isobutyramide A mixture of powdered KOH (1.3 g, 23.13 mmol) in DMSO (25 mL) was sti ⁇ ed at 0°C for 5 minutes. N-(2-bromo-5-methoxy-4-methyl-phenyl)-isobutyr-ur ⁇ ide (3.30 g, 11.56 mmol) was added cautiously followed immediately by the addition of benzylbromide (2J5 mL, 23.13 mmol) and the reaction stirred at room temperature for 48 hrs. Water was added and the mixture extracted with ethyl acetate.
• Example 17 5-[3-(l-Ethyl-4,4,6-trimethyl-2-oxo-l,2,3,4-tetrahydro-quinolin-7-yl)-5- fluoro-4-methoxy-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 17".
• Example 18 5-(r-Ethyl-4',4',6'-trimethyl-2'-oxo-l',2',3',4'-tetrahydro- [4,7']biquinolinyl-2-ylmethylene)-thiazolidine-2,4 which can be referred to as "Compound 18".
• Tetrakis(triphenylphosphine)palladium(0) (20 mg, 0.016 mmol) was added and the mixture heated at reflux under argon for 20 hrs. The solution was cooled to room temperature, diluted with ethyl acetate and washed successively with water and brine, dried over anhydrous magnesium sulfate, filtered and evaporated.
• reaction mixture was heated at 85 °C for 3 hours then cooled to room temperature.
• Water (7 mL) was added slowly to the mixture followed by a saturated aqueous solution of ammonium chloride (100 mL).
• the mixture was extrated with ethylacetate and washed successively with water and brine, dried over anhydrous magnesium sulfate, filtered and evaporated.
• Example 19 5-[2,5-Difluoro-4-methoxy-3-(l,4,4,6-tetramethyl-2-oxo-l,2,3,4- tetrahydro-quinolin-7-yl)-benzylidene]-thiazolidine-2,4-dione which can be referred to as "Compound 19".
• Tetrakis(triphenylphosphine)palladium(0) (58 mg, 0.05 mmol) was added and the mixture heated at reflux under argon for 20 hrs. The solution was cooled to room temperature, diluted with ethyl acetate and washed successively with water and brine, dried over anhydrous magnesium sulfate, filtered and evaporated. The residue was purified on silica gel (0%-20% ethyl acetate in hexane) to give 97 mg of 2,5-Difluoro-4-methoxy-3-(l,4,6,-tetramethyl-2-oxo-l,2,3,4- tetrahydro-quinolin-7-yl)-benzaldehyde. b. l,4,4,6-tetramethyl-7-(4,4,5,5-tetramethyl-[l,3,2]dioxaborolan-2-yl)-3,4- dihydro- 1 H-quinoline-2-one.
• Example 20 5-[4-Trifluoromethoxy-3-(4,4,6-trimethyl-2-oxo-l ,2,3,4-tetrahydro- quinolin-7-yl)-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 20".
• Example 21 5-[3-(l-Ethyl-3,3,5-trimethyl-2-oxo-2,3-dihydro-lH-indol-6-yl)-4- trifluoromethoxy-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 21".
• Tetrakis(triphenylphosphine)palladium(0) (398 mg, 0.34 mmol), sodium carbonate (159 mg, 1.50 mmol) and lithium chloride (98 mg, 2.25 mmol) were added and the reaction mixture was heated to reflux under argon for 22 hours. The reaction was cooled to room temperature, diluted with ethylacetate and washed successively with water and brine, dried over MgSO , filtered and evaporated under reduced pressure.
• N-(3-methoxy-4-methyl-phenyl)-isobutyramide N-(3-hydroxy-4-methyl-phenyl)-isobutyramide (6.48 g, 33.5 mmol) was dissolved in 40 mL of acetone, potassium carbonate (13.9 g, 100.5 mmol) was added followed by methyl iodide (14.3 g, 100.5 mmol). The mixture was stirred at room temperature for about 3 days. The solution was filtered and evaporated under reduced pressure to give 6.6 g of N-(3-methoxy-4-methyl-phenyl)-isobutyramide (95%).
• Example 22 5-[4-Trifluoromethoxy-3-(3,3,5-trimethyl-2-oxo-2,3-dihydro-lH-indol- 6-yl)-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 22".
• Example 23 5-[4-Trifluoromethoxy-3-(3,3,5-trimethyl-2-oxo-l-propyl-2,3-dihydro- lH-indol-6-yl)-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 23".
• Example 24 5-[3-(3,5,5,8,8-Pentamethyl-5,6,7,8-tetrahydro-naphthalen-2-yl)-4- trifluoromethoxy-benzylidene]-thiazolidine-2,4-dione, which can be referred to as "Compound 24".
• Example 25 5-[3-(l-Ethyl-4,4,6-trimethyl-2-oxo-l,2,3,4-tetrahydro-quinolin-7-yl)-4- trifluoromethoxy-benzylidene]-thiazolidine-2,4-dione, TRIS salt , which can be referred to as "Compound 25".
• Example 26 Differentiation of 3T3-L1 Pre-Adipocytes In An In Vitro Assay. (See Results in Figure 1). The following protocol was used to determine adipocyte differentiation activity of the compounds of the invention:
• Mouse pre-adipocyte 3T3-L1 cells obtained from ATCC (American Tissue Culture Collection, MD) were initially grown in DME Dulbecco's modified Eagle's medium containing 4500 mg/L glucose; 4 mM L-glutamine; 10 U/ml Pen-G; 10 mcg/ml Streptomycin and 10% Bovine Calf Serum (CS) at 37°C and 10% CO 2 .
• Cells were plated in 96 well plates at a density of approximately 3,000 cells/well and grown to confluence (when cells use 100% of the available space on the well) in the same medium.
• DM differentiation medium
• FCS Fetal Calf Serum
• Cells were then treated with the test compound at a concentration of 10 "10 to 10 "6 M, or with a control for fully-differentiated adipocytes, such as Dexamethasone/ Insulin (2.5 ⁇ M; 10 ⁇ g/ml, respectively).
• a control for fully-differentiated adipocytes such as Dexamethasone/ Insulin (2.5 ⁇ M; 10 ⁇ g/ml, respectively).
• Differentiation medium containing the compounds, with no further addition of insulin was replaced every 2-3 days for a total of 7 days.
• Compound 24 was used as a standard for differention activity, and its ability to differentiate 3T3-L1 cells at 0.1 ⁇ M was taken as reference for 100%) differentiation.
• the treated cells were washed once with PBS ( Phosphate Buffer Saline, Irvine Scientific, Irvine, CA) and lysed in situ with 50 ⁇ L 10% Hecameg (Detergent, Calbiochem, San Diego).
• PBS Phosphate Buffer Saline, Irvine Scientific, Irvine, CA
• Hecameg Detergent, Calbiochem, San Diego.
• the cellular lysates were analyzed for their lipid content using the Triglyceride-GPO Trinder reagent from Sigma.
• Example 27 Oral Administration of Selected Compounds in the Treatment of Type 2 Diabetes in KKA y Mice ( Figure 2a-e).
• the animals Prior to initiation of treatment with the compounds of the invention, the animals were bled from the tail vein (100-200 ⁇ L of whole blood) and serum levels of glucose and triglycerides were measured in duplicate (Trinder kits; Sigma, St.Louis, MO). Based on these initial measures, animals were sorted into groups with approximately the same average serum glucose levels. Once sorted, the animals were housed one per cage and provided rodent diet ad libitum. Unless otherwise indicated, compounds were suspended in sesame oil, and administered by oral gavage once daily to animals in a volume of 3ml/kg/dose.
• Compound 25 was suspended in a solution of carboxymethyl cellulose (CMC; 1% carboxy methyl cellulose in H 2 O, with 10% polyethelene glycol 400), and administered to animals in a volume of 5ml/kg/dose.
• CMC carboxymethyl cellulose
• Compound 25 was dissolved in a 10%> hydroxy propyl beta cyclodextrin solution, and administered to animals in a volume of 1 Oml kg/dose.
• mice were bled at the end of the dark cycle on days 7, 14, and/or 21 of the treatment period. Serum glucose, triglyceride and/or cholesterol levels were measured in duplicate. The blood is kept at room temperature to allow coagulation, after which the serum is separated and assayed for glucose, triglyceride and/or cholesterol levels. As shown in Figures 2a-2d all of the compounds tested reduced serum glucose and triglyceride levels, some with doses as low as 3 mg/kg when administered once a day. Also, as shown in figure 2e compound 25 causes an unexpectedly strong and simultaneous reduction in serum glucose, triglyceride and total cholesterol levels of type 2 diabetic KKAy mice following 4 weeks of treatment.
• Example 28 Oral Administration of Selected Compounds in the Treatment of Type 2 Diabetes in db/db Mutant Mice (See Results in Figure 3).
• mice were bled following a three-hour fast at the end of the dark cycle on days 0, 7, 14 of the treatment period.
• Example 29 Cholesterol Efflux Assay From Macrophage Foam Cells as Induced by Compound 2. (See Results in Figure 4).
• THP-1 cells obtained from ATCC ( Manassas, VI), were cultured in RPMI medium (Sigma, St- Louis, MO), containing 10% fetal calf serum (Sigma, St-Louis, MO), 0.05 ⁇ M 2-mercaptoethanol, 1 mM sodium pyruvate, 2 mM L- glutamine, 100 units/ml penicillin, 0.1 ⁇ g/ml streptomycin and 0.25 ⁇ g/ml amphotericin B obtained from Sigma (St-Louis, MO).
• the THP-1 cells were differentiated into macrophages in 24 well tissue culture dishes at a density of 0.5 million cells/well by incubation in the same medium plus 100 nM tetradecanoyl phorbol acetate (Sigma, St-Louis, MO), for 3 days.
• the cells were tested for cholesterol efflux as induced by compound 2 of the invention.
• Cells were labeled by incubation for 24 hr in fresh growth medium containing [3H]-cholesterol (10 ⁇ Ci/ml) (PerkinElmer, Boston, MA), and 50 ⁇ g/ml acetylated-LDL (Frederick, MD) and 1% Fetal bovine serum (Sigma, St-Louis, MO).
• Cholesterol efflux is expressed as a percentage, calculated as ([3H]Cholesterol in medium)/([3H]Cholesterol in medium + [3H]cholesterol in cells)xl00
• compound 2 increases cholesterol efflux from THP-1 cells as compared to non treated cells.
• Example 30 Oral Administration of Selected Compounds in the Treatment of Diet- Induced Hypercholesterolemia in Wild Type Sprague Dawley Rats (See Results in Figures 5a-c).
• the compounds were dissolved in a 10%» hydroxy propyl beta cyclodextrin solution, and administered to animals in a volume of 1 Oml/kg/dose.
• animals were bled from the tail vein at the end of the dark cycle on days 0 (for sorting) and day 5 of the treatment period.
• Fed serum cholesterol levels were measured in duplicate.
• the blood is kept at room temperature to allow coagulation, after which the serum is separated and assayed for total cholesterol (Infinity reagent, Sigma), HDL cholesterol (using HDL precipitating reagent and infinity reagent, Sigma) and LDL cholesterol (EzLDL kit, Sigma).
• Infinity reagent Sigma
• HDL cholesterol using HDL precipitating reagent and infinity reagent, Sigma
• LDL cholesterol EzLDL kit, Sigma
• Example 31 Oral Administration of Selected Compounds Slows the Progression of Mammary Tumors in Sprague Dawley Rats (See Results in Figure 6).
• the female mice were injected intraperitoneally with the carcinogen n-nitroso-n-methylurea, in a single dose of 50mg/kg in acidified normal saline (pH4 w/acetic acid) at a final volume of lOmg/ml (5ml/kg).
• mammary tumors are detected, and the tumor bearing females are sorted into treatment groups. Once sorted, the animals were housed four per cage and provided rodent diet ad libitum. All animals are treated with compound 1 or a vehicle for four weeks, during which time changes in tumor size are monitored. Tumors were classified as regressing, static or progressing.
• Treatment groups( ⁇ . 5/gr ⁇ w/?):
• Example 32 A Comparison of Oral Bioavailability between Compound 24 and Compound 25 (See Results in Figure 7).

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