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US20080085906A1 - 3-Pyridinecarboxamide derivatives as HDL-cholesterol raising agents - Google Patents

3-Pyridinecarboxamide derivatives as HDL-cholesterol raising agents Download PDF

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US20080085906A1
US20080085906A1 US11/904,425 US90442507A US2008085906A1 US 20080085906 A1 US20080085906 A1 US 20080085906A1 US 90442507 A US90442507 A US 90442507A US 2008085906 A1 US2008085906 A1 US 2008085906A1
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phenyl
hydroxy
nicotinamide
chloro
propyl
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Mirjana Andjelkovic
Agnes Benardeau
Evelyne Chaput
Paul Hebeisen
Matthias Nettekoven
Ulrike Sander
Constantinos Panousis
Stephan Roever
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Hoffmann La Roche Inc
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Assigned to F. HOFFMANN-LA ROCHE AG reassignment F. HOFFMANN-LA ROCHE AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ANDJELKOVIC, MIRJANA, BENARDEAU, AGNES, CHAPUT, EVELYNE, HEBEISEN, PAUL, NETTEKOVEN, MATTHIAS, OBST SANDER, ULRIKE, PANOUSIS, CONSTANTINOS G., ROEVER, STEPHAN
Assigned to HOFFMANN-LA ROCHE INC. reassignment HOFFMANN-LA ROCHE INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: F. HOFFMANN-LA ROCHE AG
Publication of US20080085906A1 publication Critical patent/US20080085906A1/en
Priority to US12/366,692 priority Critical patent/US7812028B2/en
Priority to US12/825,374 priority patent/US8188093B2/en
Abandoned legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
    • C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D213/81—Amides; Imides
    • C07D213/82—Amides; Imides in position 3
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/465—Nicotine; Derivatives thereof
    • 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
    • A61P3/04—Anorexiants; Antiobesity agents
    • 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
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system
    • 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
    • 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
    • A61P9/12—Antihypertensives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
    • C07D213/72—Nitrogen atoms
    • C07D213/74—Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
    • C07D241/02—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings
    • C07D241/10—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D241/14—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having 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
    • C07D241/24—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals

Definitions

  • the present invention is concerned with the use of 3-pyridinecarboxamide or 2-pyrazinecarboxamide derivatives as HDL-cholesterol raising agents.
  • Atherosclerosis and its associated coronary heart disease is the leading cause of death in the industrialized world. Risk for development of coronary heart disease has been shown to be strongly correlated with certain plasma lipid levels. Lipids are transported in the blood by lipoproteins. The general structure of lipoproteins is a core of neutral lipids (triglyceride and cholesterol ester) and an envelope of polar lipids (phospholipids and non esterified cholesterol).
  • LDL low density lipoprotein
  • HDL high density lipoprotein
  • VLDL very low density lipoprotein
  • TG triglyceride
  • LDL-cholesterol (LDL-C) and triglyceride levels are positively correlated, while high levels of HDL-cholesterol (HDL-C) are negatively correlated with the risk for developing cardiovascular diseases.
  • HDL-cholesterol raising agents can be useful as pharmaceutical compositions for the treatment and/or prophylaxis of atherosclerosis, peripheral vascular disease, dyslipidemia, hyperbetalipoproteinemia, hypoalphalipoproteinemia, hypercholesterolemia, hypertriglyceridemia, familial hypercholesterolemia, cardiovascular disorders, angina, ischemia, cardiac ischemia, stroke, myocardial infarction, reperfusion injury, angioplastic restenosis, hypertension, and vascular complications of diabetes, obesity or endotoxemia.
  • HDL-cholesterol raising agents may be used in combination with another compound, said compound being an HMG-CoA reductase inhibitor, an microsomal triglyceride transfer protein (MTP)/ApoB secretion inhibitor, a PPAR activator, a bile acid reuptake inhibitor, a cholesteryl ester transfer protein (CETP) inhibitor, a cholesterol absorption inhibitor, a cholesterol synthesis inhibitor, a fibrate, niacin, preparations containing niacin or other HM74a agonists, an ion-exchange resin, an antioxidant, an ACAT inhibitor or a bile acid sequestrant.
  • HMG-CoA reductase inhibitor an microsomal triglyceride transfer protein (MTP)/ApoB secretion inhibitor
  • MTP microsomal triglyceride transfer protein
  • PPAR activator e acid reuptake inhibitor
  • CETP cholesteryl ester transfer protein
  • cholesterol absorption inhibitor a
  • the present invention relates to the use of the compounds of formula I: for raising HDL-cholesterol, wherein A, G, X and R1-R17 are as defined in the detailed description and the claims.
  • An object of the present invention is therefore to provide compounds which are potent HDL-cholesterol raising agents. It has been found that compounds of formula I show such a potential.
  • the present invention relates to pharmaceutical compositions comprising a compound of formula I for use as HDL-cholesterol raising agents, and methods for the treatment and/or prophylaxis of diseases which are amenable to treatment with HDL-cholesterol raising agents, which methods comprise administering a compound of formula I to a human being or animal.
  • lower is used to mean a group consisting of one to seven, preferably of one to four carbon atom(s).
  • alkyl refers to a branched or straight-chain monovalent saturated aliphatic hydrocarbon radical of one to twenty carbon atoms. In preferred embodiments, the alkyl has one to sixteen carbon atoms, and more preferably one to ten carbon atoms.
  • lower alkyl or “C 1-7 -alkyl”, alone or in combination with other groups, refers to a branched or straight-chain monovalent alkyl radical of one to seven carbon atoms. In preferred embodiments, the carbon has one to four carbon atoms. This term is further exemplified by radicals such as methyl, ethyl, n-propyl, isopropyl, n-butyl, s-butyl, isobutyl, t-butyl, n-pentyl, 3-methylbutyl, n-hexyl, 2-ethylbutyl and the like.
  • alkoxy refers to the group R′—O—, wherein R′ is alkyl.
  • lower alkoxy or “C 1-7 -alkoxy” refers to the group R′—O—, wherein R′ is lower alkyl.
  • Examples of lower alkoxy groups are, for instance, methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy and hexyloxy, with methoxy being especially preferred.
  • lower alkoxyalkyl or “C 1-7 -alkoxy-C 1-7 -alkyl” refers to a lower alkyl group as defined above which is mono- or multiply substituted with a lower alkoxy group as defined above.
  • lower alkoxyalkyl groups are, for instance, —CH 2 —O—CH 3 , —CH 2 —CH 2 —O—CH 3 , —CH 2 —O—CH 2 —CH 3 and the groups specifically exemplified herein.
  • lower alkoxyalkyl is methoxyethyl.
  • lower hydroxyalkyl or “hydroxy-C 1-7 -alkyl” refers to lower alkyl groups as defined above wherein at least one of the hydrogen atoms of the lower alkyl group is replaced by a hydroxy group. Preferred are C 3-7 -hydroxyalkyl groups. Examples of lower hydroxyalkyl groups are 2-hydroxybutyl, 3-hydroxy-2,2-dimethylpropyl and the groups specifically exemplified therein.
  • halogen refers to fluorine, chlorine, bromine or iodine.
  • Preferred “halogen” groups are fluorine and chlorine.
  • lower halogenalkyl or “halogen-C 1-7 -alkyl” refers to lower alkyl groups which are mono- or multiply substituted with halogen, preferably with fluoro or chloro, most preferably with fluoro.
  • lower halogenalkyl groups are, for example, —CF 3 , —CHF 2 , —CH 2 Cl, —CH 2 CF 3 , —CH(CF 3 ) 2 , —CF 2 —CF 3 and the groups specifically exemplified herein.
  • lower halogenalkoxy or “halogen-C 1-7 -alkoxy” refers to lower alkoxy groups as defined above wherein at least one of the hydrogen atoms of the lower alkoxy group is replaced by a halogen atom, preferably fluoro or chloro, most preferably fluoro.
  • halogenated lower alkyl groups are trifluoromethoxy, difluoromethoxy, fluormethoxy and chloromethoxy, with trifluoromethoxy being especially preferred.
  • lower hydroxyhalogenalkyl or “hydroxy-halogen-C 1-7 -alkyl” refers to lower halogenalkyl groups as defined herein before which are additionally substituted with a hydroxy group.
  • lower hydroxyhalogenalkyl groups are, for instance, 3,3,3-trifluoro-2-hydroxy-propyl and the groups specifically exemplified herein.
  • carbamoyl refers to the group —CO—NH 2 .
  • lower carbamoylalkyl or “carbamoyl-C 1-7 -alkyl” refers to lower alkyl groups as defined above wherein one of the hydrogen atoms of the lower alkyl group is replaced by a carbamoyl group.
  • Examples of preferred lower carbamoylalkyl groups are 3-carbamoylpropyl, 4-carbamoylbutyl and 5-carbamoylpentyl, most preferably 4-carbamoylbutyl.
  • lower alkylcarbonyl refers to the group —CO—R′′, wherein R′′ is lower alkyl as defined above.
  • Lower alkylcarbonylamino refers to the group —NH—CO—R′′, wherein R′′ is lower alkyl as defined above.
  • lower alkylcarbonylaminoalkyl or “C 1-7 -alkylcarbonylamino-C 1-7 -alkyl” refers to lower alkyl groups as defined above wherein one of the hydrogen atoms of the lower alkyl group is replaced by a lower alkylcarbonylamino group.
  • a preferred lower alkylcarbonylaminoalkyl group is ethylcarbonylaminoethyl.
  • cycloalkyl or “C 3-7 -cycloalkyl” refers to a monovalent carbocyclic radical of three to seven, preferably three to five carbon atoms. This term is further exemplified by radicals such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cycloheptyl, with cyclopropyl being especially preferred.
  • lower cycloalkylalkyl or “C 3-7 -cycloalkyl-C 1-7 -alkyl” refers to a lower alkyl group as defined above which is mono- or multiply substituted with a cycloalkyl group as defined above.
  • Examples of lower cycloalkylalkyl groups are, for instance, —CH 2 -cyclopropyl, —CH 2 —CH 2 -cyclopropyl, —CH 2 -cyclopentyl and the groups specifically exemplified herein.
  • heterocyclyl refers to a saturated or partly unsaturated 3-, 4-, 5-, 6- or 7-membered ring which can comprise one, two or three atoms independently selected from the group consisting of nitrogen, oxygen and sulphur.
  • heterocyclyl rings examples include piperidinyl, piperazinyl, azetidinyl, azepinyl, pyrrolidinyl, pyrazolidinyl, imidazolinyl, imidazolidinyl, oxazolidinyl, isoxazolidinyl, morpholinyl, thiazolidinyl, isothiazolidinyl, oxiranyl, thiadiazolylidinyl, oxetanyl, dioxolanyl, dihydrofuryl, tetrahydrofuryl, dihydropyranyl, tetrahydropyranyl, and thiomorpholinyl.
  • Preferred heterocyclyl groups are oxetanyl and [1,3]dioxolanyl.
  • lower heterocyclylalkyl or “heterocyclyl-C 1-8 -alkyl” refers to lower alkyl groups as defined above wherein at least one of the hydrogen atoms of the lower alkyl group is replaced by a heterocyclyl group as defined above.
  • heteroaryl refers to an aromatic 5- or 6-membered ring which can comprise one, two or three atoms independently selected from the group consisting of nitrogen, oxygen and sulphur.
  • heteroaryl groups are, for instance, furyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, thienyl, isoxazolyl, thiazolyl, isothiazolyl, oxazolyl, imidazolyl, pyrazolyl, triazolyl, oxadiazolyl, oxatriazolyl, tetrazolyl, pentazolyl, or pyrrolyl.
  • heteroaryl group can optionally be mono- or disubstituted by lower alkyl.
  • heteroaryl also includes bicyclic aromatic moieties having 9 to 10 ring atoms with 1 to 3 heteroatoms such as benzofuranyl, benzothiazolyl, indolyl, benzoxazolyl, quinolinyl, isoquinolinyl, benzimidazolyl, benzisoxazolyl, and benzothienyl.
  • Preferred heteroaryl groups are isoxazolyl, pyridyl, pyrimidinyl, imidazolyl, triazolyl, and thiazolyl which groups can optionally be mono- or disubstituted by lower alkyl.
  • 3-methylisoxazolyl 5-methylisoxazolyl, pyridyl, 3-methylpyridyl, pyrimidinyl, 1-methylimidazolyl, 2-methyl[1,2,4]triazolyl and 4-methylthiazolyl.
  • lower heteroarylalkyl or “heteroaryl-C 1-8 -alkyl” refers to lower alkyl groups as defined above wherein at least one of the hydrogen atoms of the lower alkyl group is replaced by a heteroaryl group as defined above.
  • form a 4-, 5-, 6- or 7-membered heterocyclic ring refers to a N-heterocyclic ring such as azetidinyl, pyrrolidinyl, piperidinyl or azepanyl. Preferred is piperidinyl.
  • the heterocyclic ring may optionally contain a further nitrogen, oxygen or sulfur atom, such as an imidazolidinyl, pyrazolidinyl, oxazolidinyl, isoxazolidinyl, thiazolidinyl, isothiazolidinyl, piperazinyl, morpholinyl or thiomorpholinyl.
  • oxo means that a C-atom of the heterocyclic ring may be substituted by ⁇ O, thus meaning that the heterocyclic ring may contain one or more carbonyl (—CO—) groups.
  • salts embraces salts of the compounds of formula I with inorganic or organic acids such as hydrochloric acid, hydrobromic acid, nitric acid, sulphuric acid, phosphoric acid, citric acid, formic acid, maleic acid, acetic acid, fumaric acid, succinic acid, tartaric acid, methanesulphonic acid, salicylic acid, p-toluenesulphonic acid and the like, which are non toxic to living organisms.
  • Preferred salts with acids are formates, maleates, citrates, hydrochlorides, hydrobromides and methanesulfonic acid salts, with hydrochlorides being especially preferred.
  • substituted refers to the fact that at least one of the hydrogen atoms of that group or molecule is replaced by some other substituent.
  • a therapeutically effective amount of a compound means an amount of compound that is effective to prevent, alleviate or ameliorate symptoms of disease or prolong the survival of the subject being treated. Determination of a therapeutically effective amount is within the skill in the art.
  • the therapeutically effective amount or dosage of a compound according to this invention can vary within wide limits and may be determined in a manner known in the art. Such dosage will be adjusted to the individual requirements in each particular case including the specific compound(s) being administered, the route of administration, the condition being treated, as well as the patient being treated.
  • the daily dosage can be administered as a single dose or in divided doses, or for parenteral administration, it may be given as continuous infusion.
  • pharmaceutically acceptable carrier is intended to include any and all material compatible with pharmaceutical administration including solvents, dispersion media, coatings, antibacterial and antifungal agents, isotonic and absorption delaying agents, and other materials and compounds compatible with pharmaceutical administration. Except insofar as any conventional media or agent is incompatible with the active compound, use thereof in the compositions of the invention are contemplated. Supplementary active compounds can also be incorporated into the compositions.
  • a compound of the formula or “a compound of formula” or “compounds of the formula” or “compounds of formula” means any compound selected from the genus of compounds as defined by the formula.
  • the present invention relates to a method of raising HDL cholesterol comprising administering to a patient in need thereof a compound of the formula or a pharmaceutically acceptable salt thereof, wherein A is CH or N; R 2 is hydrogen and R 1 is selected from the group consisting of:
  • the present invention relates to a method of raising HDL cholesterol comprising administering to a patient in need thereof the compounds of formula I having the formula wherein
  • the present invention relates to the use of compounds of formula I having the formula wherein A, R 1 to R 8 , R 15 and R 17 are as defined herein before, and pharmaceutically acceptable salts thereof, for the preparation of pharmaceutical compositions for the treatment and/or prophylaxis of diseases which can be treated with HDL-cholesterol raising agents.
  • the present invention relates to the use of compounds of formula I having the formula wherein A, R 1 to R 8 , R 16 and R 17 are as defined herein before, and pharmaceutically acceptable salts thereof, for the preparation of pharmaceutical compositions for the treatment and/or prophylaxis of diseases which can be treated with HDL-cholesterol raising agents.
  • the present invention relates to the use of compounds of the formula I, wherein A is CH, for the treatment and/or prophylaxis of diseases which can be treated with HDL-cholesterol raising agents.
  • the present invention relates to a method of raising HDL cholesterol comprising administering to a patient in need thereof a compound of the formula wherein
  • the invention relates to the use of compounds of formula I, wherein X is O. Also preferred is the use of compounds of formula I, wherein R 1 is cycloalkyl which is substituted by hydroxy, with those compounds, wherein R 1 is cyclohexyl substituted by hydroxy, being especially preferred.
  • compounds of formula I are preferably used, wherein R 1 is —CH 2 —CR 9 R 10 -cycloalkyl and wherein R 9 is hydrogen and R 10 is hydroxy, with those compounds of formula I, wherein R 1 is —CH 2 —CR 9 R 10 -cyclopropyl and wherein R 9 is hydrogen and R 10 is hydroxy, being more preferred.
  • R 3 is selected from the group consisting of lower cycloalkylalkyl, lower alkoxyalkyl and lower halogenalkyl, with those compounds of formula I, wherein R 3 is cyclopropylmethyl, 2-methoxyethoxy or 2,2,2-trifluoroethyl, being especially preferred.
  • R 6 is halogen and R 4 , R 5 , R 7 and R 8 are hydrogen.
  • the invention relates to a method of raising HDL cholesterol comprising administering to a patient in need thereof compounds of formula I having the formula wherein
  • the invention relates to the use of compounds of formula I selected from the group consisting of:
  • the invention thus relates to compounds of formula I as defined herein before for use for the treatment and/or prophylaxis of diseases which can be treated with HDL-cholesterol raising agents.
  • the invention further relates to new compounds of formula I selected from the group consisting of:
  • the invention further relates to new compounds of the formula I having the formula wherein A, R 1 to R 8 , R 15 and R 17 are as defined herein before, and pharmaceutically acceptable salts thereof.
  • those compounds of formula I-B are preferred, wherein R 6 is chloro and R 4 , R 5 , R 7 and R 8 are hydrogen.
  • the compounds of formula I-B are selected from 5-(5-bromo-furan-2-ylethynyl)-6-(4-chloro-phenyl)-pyrazine-2-carboxylic acid ((R)-2-cyclopropyl-2-hydroxy-propyl)-amide, 5-(4-chloro-phenyl)-N-((1R,2R)-2-hydroxy-cyclohexyl)-6-(3-methoxy-prop-1-ynyl)-nicotinamide, 5-(4-chloro-phenyl)-6-cyclopropylethynyl-N-((1R,2R)-2-hydroxy-cyclohexyl)-nicotinamide, and pharmaceutically acceptable salts thereof.
  • Coupling agents for the reaction of compounds of formula II with amines of formula III are for example N,N′-carbonyldiimidazole (CDI), N,N′-dicyclohexylcarbodiimide (DCC), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDCI), 1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium-3-oxide hexafluorophosphate (HATU), 1-hydroxy-1,2,3-benzotriazole (HOBT), or O-benzotriazol-1-yl-N,N,N′,N′-tetramethyluronium tetrafluoroborate (TBTU).
  • Preferred coupling agent is TBTU.
  • Suitable bases include triethylamine, diisopropylethylamine and, preferably, Hünig's base.
  • compounds of formula I can be manufactured by the methods given below, by the methods given in the examples or by analogous methods. Appropriate reaction conditions for the individual reaction steps are known to the person skilled in the art. Starting materials are either commercially available or can be prepared by methods analogous to the methods given below or in the examples or by methods known in the art.
  • compound AA (5-bromo-6-chloro-3-pyridinecarboxylic acid methyl ester, CAS RN 78686-77-8) can be used as starting material.
  • AA is commercially available or can alternatively be prepared by a three step sequence from 6-hydroxy-3-pyridinecarboxylic acid following literature procedures by bromination with bromine in acetic acid, preparation of the 5-bromo-6-chloro-3-pyridine carboxylic acid chloride with phosphorus oxychloride and/or phosphorus pentachloride and solvolysis with methanol.
  • Compound AC can be prepared from AA by reaction with a suitably substituted primary or secondary alcohol of formula AB or a phenol of formula AB in the presence of a base, for example sodium hydride, in a inert solvent, for example dimethylformamide, at temperatures from room temperature to reflux temperature of the solvent, preferably at room temperature.
  • a base for example sodium hydride
  • a inert solvent for example dimethylformamide
  • Compound AE can be prepared by coupling a suitably substituted aryl metal species of formula AD, preferably a arylboronic acid or arylboronic acid ester, with AC in the presence of a suitable catalyst, preferably a palladium catalyst and more preferably palladium(II)acetate/triphenylphosphine mixtures or palladium(II)chloride-dppf (1,1′-bis(diphenylphosphino)ferrocene) complexes and a base, preferably triethylamine or sodium carbonate in an inert solvent such as dimethylformamide or toluene.
  • a suitable catalyst preferably a palladium catalyst and more preferably palladium(II)acetate/triphenylphosphine mixtures or palladium(II)chloride-dppf (1,1′-bis(diphenylphosphino)ferrocene) complexes and a base, preferably triethylamine or
  • Compound AF can then be obtained by saponification of compound AC by methods known in the art, for example by saponification with an alkalimetal hydroxide, for example sodium hydroxide, in a suitable solvent, for example a mixture of dioxane and water.
  • an alkalimetal hydroxide for example sodium hydroxide
  • a suitable solvent for example a mixture of dioxane and water.
  • compounds of formula I can be prepared according to scheme 2 starting from compound BA (5-bromo-6-chloro-3-picoline, CAS RN 17282-03-0), which is commercially available or can be prepared starting from 6-hydroxy-3-picoline following literature procedures by bromination with N-bromosuccinimide (NBS) and reaction with phosphorus oxycloride.
  • BA 5-bromo-6-chloro-3-picoline, CAS RN 17282-03-0
  • NBS N-bromosuccinimide
  • Compound BB is prepared from BA by reaction with a suitably substituted primary or secondary alcohol of formula AB or a phenol of formula AB in the presence of a base, for example sodium hydride, in a inert solvent, for example dimethylformamide, at temperatures from room temperature to reflux temperature of the solvent, preferably at 70° C.
  • a base for example sodium hydride
  • a inert solvent for example dimethylformamide
  • Compound BC can then be prepared by coupling a suitably substituted aryl metal species, preferably a arylboronic acid or arylboronic acid ester of formula AD, with BB in the presence of a suitable catalyst, preferably a palladium catalyst and more preferably palladium(II)chloride-dppf complexes and a base, preferably sodium carbonate in an inert solvent such as toluene.
  • a suitable catalyst preferably a palladium catalyst and more preferably palladium(II)chloride-dppf complexes and a base, preferably sodium carbonate in an inert solvent such as toluene.
  • BC compound AD can be obtained by direct or multistep oxidation of the methyl group by methods known in the art as for example those reviewed in March, Advanced Organic Chemistry, 5th ed. 2001, Wiley & Sons. More specifically compound BC can be brominated with N-bromosuccinimide (NBS) in the presence of a radical chain initiator as for example azo-bisisobutyronitrile (AIBN) in an inert solvent, for example carbon tetrachloride, by irradiating and heating, saponification of the produced mono- or dibromide with for example ammonium hydroxide to the aldehyde or alcohol and finally by oxidation with a suitable oxidizing agent, for example tetrabutylammonium permanganate, in an inert solvent such as pyridine.
  • N-bromosuccinimide N-bromosuccinimide
  • AIBN azo-bisisobutyronitrile
  • an inert solvent for example carbon tetrachloride
  • compounds of formula I can be prepared according to scheme 3 starting from compound CA (5-bromo-6-chloro-3-pyridinecarboxylic acid, CAS RN 29241-62-1) which is commercially available or can be obtained by literature methods or by oxidation of compound BA with tetrabutylammonium permanganate in pyridine.
  • Compound CB is obtained from compound CA by reaction with a suitably substituted primary or secondary alcohol of formula AB or a phenol of formula AB in the presence of two or more equivalents of a base, for example sodium hydride, in a inert solvent, for example dimethylformamide, at temperatures from room temperature to reflux temperature of the solvent, preferably at 70° C.
  • a base for example sodium hydride
  • a inert solvent for example dimethylformamide
  • Compound AF can then be prepared by coupling a suitably substituted aryl metal species, preferably a arylboronic acid or arylboronic acid ester of formula AD, with CB in the presence of a suitable catalyst, preferably a palladium catalyst and more preferably palladium(II)chloride-dppf complexes, and a base, preferably sodium carbonate in an inert solvent such as toluene.
  • a suitable catalyst preferably a palladium catalyst and more preferably palladium(II)chloride-dppf complexes
  • a base preferably sodium carbonate in an inert solvent such as toluene.
  • compounds of formula I can be prepared starting from compound CA by protecting the acid group with a suitable protecting group (P) to give compound DA by methods known in the art (Scheme 4).
  • Suitable acid protecting groups are for example benzyl (Bn), benzyloxymethyl (BOM), methoxyethoxymethyl (MEM) or allyl groups and silyl groups such as trimethylsilyl, triethylsilyl and tert-butyldimethylsilyl esters (for more details see T. W. Greene et al., Protective Groups in Organic Chemistry, John Wiley and Sons Inc. New York 1999, 3 rd edition).
  • Compound DB can be prepared from DA by reaction with a suitably substituted primary or secondary alcohol of formula AB or a phenol of formula AB in the presence of a base, for example sodium hydride, in a inert solvent, for example dimethylformamide, at temperatures from room temperature to reflux temperature of the solvent, preferably at room temperature.
  • a base for example sodium hydride
  • a inert solvent for example dimethylformamide
  • a compound DC is obtained by coupling a suitably substituted aryl metal species, preferably a arylboronic acid or arylboronic acid ester of formula AD, with DB in the presence of a suitable catalyst, preferably a palladium catalyst and more preferably palladium(II)chloride-dppf complexes, and a base, preferably sodium carbonate in an inert solvent such as toluene.
  • a compound DC is obtained.
  • Compound AF can in turn be prepared by de-protection of compound DC by methods known in the art.
  • compounds of formula I can be prepared according to scheme 5.
  • compound AA (5-bromo-6-chloro-3-pyridinecarboxylic acid methyl ester, CAS RN 78686-77-8) can be used as starting material.
  • AA is commercially available or can alternatively be prepared by a three step sequence from 6-hydroxy-3-pyridinecarboxylic acid following literature procedures by bromination with bromine in acetic acid, preparation of the 5-bromo-6-chloro-3-pyridine carboxylic acid chloride with phosphorus oxychloride and/or phosphorus pentachloride and solvolysis with methanol.
  • Compound EB can be prepared from AA by reaction with a suitably substituted primary or secondary amine formula EY in the presence of a base, for example DBU, in either an inert solvent, for example dimethylformamide, or in neat DBU at temperatures from room temperature to reflux temperature of the solvent, preferably at room temperature.
  • a base for example DBU
  • inert solvent for example dimethylformamide
  • Compound ED can be prepared by coupling a suitably substituted aryl metal species of formula EC, preferably a arylboronic acid or arylboronic acid ester, with EB in the presence of a suitable catalyst, preferably a palladium catalyst and more preferably palladium(II)acetate/triphenylphosphine mixtures or palladium(II)chloride-dppf (1,1′-bis(diphenylphosphino)ferrocene)complexes and a base, preferably triethylamine or sodium carbonate in an inert solvent such as dimethylformamide or toluene.
  • a suitable catalyst preferably a palladium catalyst and more preferably palladium(II)acetate/triphenylphosphine mixtures or palladium(II)chloride-dppf (1,1′-bis(diphenylphosphino)ferrocene)complexes and a base, preferably trieth
  • Compound EF can then be obtained by saponification of compound ED by methods known in the art, for example by saponification with an alkalimetal hydroxide, for example sodium hydroxide, in a suitable solvent, for example a mixture of dioxane and water.
  • an alkalimetal hydroxide for example sodium hydroxide
  • a suitable solvent for example a mixture of dioxane and water.
  • compounds of formula I, wherein A is N can be prepared by a process, which process comprises coupling a compound of formula wherein R 1 , R 2 , R 4 to R 8 and R 17 are as defined herein before, with an amine of the formula H—NR 3 R 14 V wherein R 3 and R 14 are as defined herein before, with the help of an activating agent under basic conditions, and, if desired, converting the resulting compound of formula I into a pharmaceutically acceptable salt thereof.
  • Activating agents include coupling agents for the reaction of compounds of formula IV with amines of formula V as for example N,N′-carbonyldiimidazole (CDI), N,N′-dicyclohexylcarbodiimide (DCC), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDCI), 1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium-3-oxide hexafluorophosphate (HATU), 1-hydroxy-1,2,3-benzotriazole (HOBT), or O-benzotriazol-1-yl-N,N,N′,N′-tetramethyluronium tetrafluoroborate (TBTU).
  • CDI N,N′-carbonyldiimidazole
  • DCC N,N′-dicyclohexylcarbodiimide
  • EDCI 1-(3
  • Suitable bases include triethylamine, diisopropylethylamine and, preferably, Hünig's base.
  • compounds of formula I wherein A is N can be prepared by a process, which process comprises coupling a compound of formula wherein R 1 , R 2 , R 4 to R 8 and R 17 are as defined herein before, with an alcohol of the formula R 3 —OH VI wherein R 3 is as defined herein before, in the presence of a metal hydride or metal carbonate, and, if desired, converting the resulting compound of formula I into a pharmaceutically acceptable salt thereof.
  • the metal hydride is sodium hydride.
  • Preferred metal carbonate is cesium carbonate.
  • a compound of formula FA can be transformed to a compound of formula FB by reaction with aryl boronic acids (exemplified but by no means restricted to phenylboronic acid; 4-fluorophenylboronic acid; 4-chlorophenylboronic acid, (4-trifluoromethyl)phenylboronic acid or 4-trifluoromethoxyphenylboronic acid) in an appropriate solvent such as 1,2-dimethoxyethane in the presence of a suitable catalyst such as tetrakis (triphenylphosphine) palladium (0) and a suitable base such as sodium carbonate at temperatures typically ranging from 0° C. to 120° C.; a protocol commonly known as the Suzuki reaction.
  • aryl boronic acids exemplified but by no means restricted to phenylboronic acid; 4-fluorophenylboronic acid; 4-chlorophenylboronic acid, (4-trifluoromethyl)phenylboronic acid or 4-trifluoromethoxyphenylbor
  • Transformation of a compound of the formula FB to a compound of formula FC can be effected by palladium catalyzed insertion of carbon monoxide into the aryl-bromine bond in a solvent containing an alcohol such as methanol under an atmosphere of carbon monoxide at pressures typically ranging from 1 bar to 200 bar and temperatures typically ranging from 20° C. to 150° C.
  • Compounds of the formula FC can be converted to compounds of the formula FD by reaction with a source of nitrite, preferably isoamyl nitrite in the presence of a source of bromide such as metal bromides or bromine containing solvents such as dibromo-methane and an activating agent such as hydrobromic acid or trimethylbromosilane at temperatures ranging from ⁇ 20° C. to 80° C., typically at ambient temperature.
  • a source of nitrite preferably isoamyl nitrite in the presence of a source of bromide such as metal bromides or bromine containing solvents such as dibromo-methane and an activating agent such as hydrobromic acid or trimethylbromosilane at temperatures ranging from ⁇ 20° C. to 80° C., typically at ambient temperature.
  • Saponification of compounds of the formula FD to compounds of the formula FF can be carried out in the presence of a suitable base such as a metal hydroxide, preferably lithium hydroxide, in an appropriate solvent such as tetrahydrofuran and mixtures thereof with water at temperatures ranging from 0° C. to 100° C., preferably at 20° C.
  • a suitable base such as a metal hydroxide, preferably lithium hydroxide
  • an appropriate solvent such as tetrahydrofuran and mixtures thereof with water at temperatures ranging from 0° C. to 100° C., preferably at 20° C.
  • Coupling of compounds of the general formula FF with amines to give compounds of the general formula FG can be carried out by methods used for the formation of peptide bonds.
  • compounds of the general formula V can be converted to their acid chlorides by reaction with (1-chloro-2-methyl-propenyl)-dimethyl-amine in an inert solvent such as dichloromethane and subsequently coupled to amines in the presence of suitable bases such as triethylamine or Huenig's base.
  • Compounds of the general formula FG can be reacted with a wide variety of alcohols and amines in suitable solvents such as dimethylformamide or dimethylsulfoxide in the presence of a suitable base, preferably an excess of the amine itself or tertiary amine bases exemplified by triethylamine, Huenig's base or N,N,N′,N′-tetramethylguanidine, in the case of reaction with amines or in case of reaction with alcohols, in presence of suitable bases such as metal hydrides, preferably sodium hydride or metal carbonates such as cesium carbonate to yield compounds of the general formula I-E.
  • suitable bases such as metal hydrides, preferably sodium hydride or metal carbonates such as cesium carbonate
  • compounds of the general formula FB can be transformed to compounds of the general formula GC by essentially the same conditions as described above for the conversion of compounds of the general formula FC to compounds of the general formula FD
  • Compounds of formula GC can be reacted with amines or alcohols under conditions described above for conversion of compounds of formula FG to compounds of formula I-F yielding preferentially compounds of formula GD.
  • Further transformation of the compounds of the general formula GD to compounds of the general formula I-F can be accomplished via intermediates of the general formula GG, and compounds of the general formula GG using the methods described for the transformation of compounds of the general formula FB to compounds of the general formula FC and of compounds of the general formula FD to compounds of the general formula FG via compounds of the general formula FF.
  • compounds of the general formula GD can be transformed to compounds of the general formula I-F directly by palladium catalyzed carbonylation in the presence of appropriate amines under condition otherwise similar to the above described transformations of compounds of the general formula FB to compounds of the general formula FC.
  • Compounds of the general formula FB can be transformed into compounds of the general formula HC by reaction with compounds of the general formula HG in which the abbreviation Lg stands for a suitable leaving group such as a halogen group or a mesylate group and Q stands for a carbon chain consisting of 2 to 3 methylene units or a chain consisting of a methylene unit an oxygen atom and an other methylene unit.
  • Lg stands for a suitable leaving group such as a halogen group or a mesylate group
  • Q stands for a carbon chain consisting of 2 to 3 methylene units or a chain consisting of a methylene unit an oxygen atom and an other methylene unit.
  • arylmetalspecies can be an arylboronic acid which is reacted with AA in a inert solvent, for example toluene, in the presence of a palladium catalyst, for example tetrakis(triphenylphosphine)palladium(0) or bis(diphenylphoshinoferrocene)dichloropalladium(II), and a base, like sodium carbonate, at temperatures ranging from room temperature to the boiling point of the solvent.
  • a palladium catalyst for example tetrakis(triphenylphosphine)palladium(0) or bis(diphenylphoshinoferrocene)dichloropalladium(II
  • Saponification of compounds of the formula IB to give compounds of the formula IC can be carried out in the presence of a suitable base such as a metal hydroxide, preferably lithium hydroxide, in an appropriate solvent such as tetrahydrofuran and mixtures thereof with water or methanol at temperatures ranging from 0° C. to 100° C., preferably at 20° C.
  • a suitable base such as a metal hydroxide, preferably lithium hydroxide
  • an appropriate solvent such as tetrahydrofuran and mixtures thereof with water or methanol
  • Coupling of compounds of the general formula IC with amines to give compounds of the general formula ID can be carried out by methods used for the formation of peptide bonds.
  • compounds of the general formula ID are activated with a coupling reagent, for example TBTU (O-benzotriazol-1-yloxy)-N,N,N′,N′-tetramethyluronium tetrafluoroborate), and coupled to amines in an inert solvent such as DMF in the presence of suitable bases such as triethylamine or Huenig's base.
  • a coupling reagent for example TBTU (O-benzotriazol-1-yloxy)-N,N,N′,N′-tetramethyluronium tetrafluoroborate
  • suitable bases such as triethylamine or Huenig's base.
  • Compounds of the general formula ID can be transformed into compounds of the general formula IE by reaction with alkinyls of the general formula XB.
  • this reaction is run in the presence of a suitable catalyst system, for example bis(diphenylphoshinoferrocene)dichloropalladium(II), cuprous(I)iodide and triphenylphosphine on polystyrene in the presence of a suitable base, for example diisopropylethylamine or diethylamine, in a inert solvent, for example tetrahydrofuran or dimethylformamide in a microwave oven at 120° C.
  • a suitable catalyst system for example bis(diphenylphoshinoferrocene)dichloropalladium(II), cuprous(I)iodide and triphenylphosphine on polystyrene
  • a suitable base for example diisopropylethylamine or diethylamine
  • Compounds of the general formula IE can be hydrogenated to give compounds of formula I-C.
  • this reaction is run in the presence of a suitable catalyst system, for example palladium on charcoal, in a inert solvent for example ethyl acetate or ethanol, at suitable temperatures and pressures, for example at room temperature and hydrogen pressures of 1 bar.
  • a suitable catalyst system for example palladium on charcoal
  • a inert solvent for example ethyl acetate or ethanol
  • suitable temperatures and pressures for example at room temperature and hydrogen pressures of 1 bar.
  • compounds of the general formula IB can be transformed into compounds of the general formula JC by reaction with alkinyls of the general formula XB.
  • this reaction is run in the presence of a suitable catalyst system, for example bis(diphenylphoshinoferrocene)dichloropalladium(II), cuprous(I)iodide and triphenylphosphine on polystyrene in the presence of a suitable base, for example diisopropylethylamine or diethylamine, in a inert solvent, for example tetrahydrofuran or dimethylformamide in a microwave oven at 120° C.
  • a suitable catalyst system for example bis(diphenylphoshinoferrocene)dichloropalladium(II), cuprous(I)iodide and triphenylphosphine on polystyrene
  • a suitable base for example diisopropylethylamine or diethylamine
  • a inert solvent for example tetrahydrofuran or dimethylformamide
  • Saponification of compounds of the formula JD to give compounds of the formula JE can be carried out in the presence of a suitable base such as a metal hydroxide, preferably lithium hydroxide, in an appropriate solvent such as tetrahydrofuran and mixtures thereof with water or methanol at temperatures ranging from 0° C. to 100° C., preferably at 20° C.
  • a suitable base such as a metal hydroxide, preferably lithium hydroxide
  • an appropriate solvent such as tetrahydrofuran and mixtures thereof with water or methanol
  • Coupling of compounds of the general formula JE with amines to give compounds of the general formula I-C can be carried out by methods used for the formation of peptide bonds.
  • compounds of the general formula JE are activated with a coupling reagent, for example TBTU (O-benzotriazol-1-yloxy)-N,N,N′,N′-tetramethyluronium tetrafluoroborate), and coupled to amines in an inert solvent such as DMF in the presence of suitable bases such as triethylamine or Huenig's base.
  • a coupling reagent for example TBTU (O-benzotriazol-1-yloxy)-N,N,N′,N′-tetramethyluronium tetrafluoroborate
  • suitable bases such as triethylamine or Huenig's base.
  • Deprotection of a compound of formula XA to give a compound of formula XB can be achieved with a base, for example potassium carbonate, in a suitable solvent, for example methanol, at room temperature.
  • a base for example potassium carbonate
  • a suitable solvent for example methanol
  • the compounds of formula I in this invention may be derivatised at functional groups to provide derivatives which are capable of conversion back to the parent compound in vivo.
  • the compounds of formula I of the present invention can be used as medicaments or pharmaceutical compositions for the treatment and/or prophylaxis of diseases which can be treated with HDL-cholesterol raising agents.
  • diseases are atherosclerosis, peripheral vascular disease, dyslipidemia, hyperbetalipoproteinemia, hypoalphalipoproteinemia, hypercholesterolemia, hypertriglyceridemia, familial hypercholesterolemia, cardiovascular disorders, angina, ischemia, cardiac ischemia, stroke, myocardial infarction, reperfusion injury, angioplastic restenosis, hypertension, and vascular complications of diabetes, obesity or endotoxemia.
  • the use as medicament for the treatment and/or prevention of dyslipidemia is preferred.
  • the invention therefore also relates to a pharmaceutical composition
  • a pharmaceutical composition comprising a compound as defined above and a pharmaceutically acceptable carrier and/or adjuvant which are useful for the treatment and/or prophylaxis of diseases which can be treated with HDL-cholesterol raising agents.
  • the invention relates to a pharmaceutical composition as defined above for the treatment and/or prophylaxis of atherosclerosis, peripheral vascular disease, dyslipidemia, hyperbetalipoproteinemia, hypoalphalipoproteinemia, hypercholesterolemia, hypertriglyceridemia, familial hypercholesterolemia, cardiovascular disorders, angina, ischemia, cardiac ischemia, stroke, myocardial infarction, reperfusion injury, angioplastic restenosis, hypertension, and vascular complications of diabetes, obesity or endotoxemia.
  • the invention relates to a method for the treatment and/or prophylaxis of diseases which can be treated with HDL-cholesterol raising agents, which method comprises administering a therapeutically effective amount of a compound of formula I to a patient in need thereof.
  • diseases are atherosclerosis, peripheral vascular disease, dyslipidemia, hyperbetalipoproteinemia, hypoalphalipoproteinemia, hypercholesterolemia, hypertriglyceridemia, familial hypercholesterolemia, cardiovascular disorders, angina, ischemia, cardiac ischemia, stroke, myocardial infarction, reperfusion injury, angioplastic restenosis, hypertension, and vascular complications of diabetes, obesity or endotoxemia.
  • a method for the treatment and/or prophylaxis of dyslipidemia is preferred.
  • the invention relates to the use of compounds of formula I as defined above for the preparation of a medicament for the treatment and/or prophylaxis of diseases can be treated with HDL raising agents.
  • diseases are atherosclerosis, peripheral vascular disease, dyslipidemia, hyperbetalipoproteinemia, hypoalphalipoproteinemia, hypercholesterolemia, hypertriglyceridemia, familial hypercholesterolemia, cardiovascular disorders, angina, ischemia, cardiac ischemia, stroke, myocardial infarction, reperfusion injury, angioplastic restenosis, hypertension, and vascular complications of diabetes, obesity or endotoxemia.
  • the use of compounds of formula I as defined above for the preparation of pharmaceutical compositions for the treatment and/or prophylaxis of dyslipidemia is preferred.
  • HDL raising agents of formula I are useful in combination or association with another compound, said compound being selected from the group consisting of an HMG-CoA reductase inhibitor, an microsomal triglyceride transfer protein (MTP)/ApoB secretion inhibitor, a PPAR activator, a cholesteryl ester transfer protein (CETP) inhibitor, a bile acid reuptake inhibitor, a cholesterol absorption inhibitor, a cholesterol synthesis inhibitor, a fibrate, niacin, a preparation containing niacin or other HM74a agonists, an ion-exchange resin, an antioxidant, an ACAT inhibitor or a bile acid sequestrant.
  • HMG-CoA reductase inhibitor an microsomal triglyceride transfer protein (MTP)/ApoB secretion inhibitor
  • MTP microsomal triglyceride transfer protein
  • PPAR activator a cholesteryl ester transfer protein (CETP) inhibitor
  • the invention therefore also relates to a pharmaceutical composition
  • a pharmaceutical composition comprising a compound of formula I as defined above in combination or association with a compound selected from the group consisting of an HMG-CoA reductase inhibitor, an microsomal triglyceride transfer protein (MTP)/ApoB secretion inhibitor, aPPAR activator, a cholesteryl ester transfer protein (CETP) inhibitor, a bile acid reuptake inhibitor, a cholesterol absorption inhibitor, a cholesterol synthesis inhibitor, a fibrate, niacin, a preparation containing niacin or other HM74a agonists, an ion-exchange resin, an antioxidant, an ACAT inhibitor or a bile acid sequestrant, as well as a pharmaceutically acceptable carrier and/or adjuvant.
  • the invention further relates to the use of compounds of formula I as defined above in combination or association with a compound selected from the group consisting of an HMG-CoA reductase inhibitor, an microsomal triglyceride transfer protein (MTP)/ApoB secretion inhibitor, a PPAR activator, a cholesteryl ester transfer protein (CETP) inhibitor, a bile acid reuptake inhibitor, a cholesterol absorption inhibitor, a cholesterol synthesis inhibitor, a fibrate, niacin, a preparation containing niacin or other HM74a agonists, an ion-exchange resin, an antioxidant, an ACAT inhibitor or a bile acid sequestrant for the preparation of a medicament for the treatment and/or prophylaxis of diseases such as atherosclerosis, peripheral vascular disease, dyslipidemia, hyperbetalipoproteinemia, hypoalphalipoproteinemia, hypercholesterolemia, hypertriglyceridemia, familial hypercholesterolemia, cardiovascular disorders
  • the invention also relates to a method for the treatment and/or prophylaxis of diseases which can be treated with HDL-cholesterol raising agents, which method comprises administration of a therapeutically effective amount of a compound according to formula I in combination or association with a therapeutically effective amount of a compound selected from the group consisting of an HMG-CoA reductase inhibitor, an microsomal triglyceride transfer protein (MTP)/ApoB secretion inhibitor, a PPAR activator, a cholesteryl ester transfer protein (CETP) inhibitor, a bile acid reuptake inhibitor, a cholesterol absorption inhibitor, a cholesterol synthesis inhibitor, a fibrate, niacin, a preparation containing niacin or other HM74a agonists, an ion-exchange resin, an antioxidant, an ACAT inhibitor or a bile acid sequestrant.
  • a compound selected from the group consisting of an HMG-CoA reductase inhibitor, an microsomal
  • the compounds of formula I and/or their pharmaceutically acceptable salts can be used in the form of pharmaceutical compositions for enteral, parenteral or topical administration. They can be administered, for example, perorally, e.g. in the form of tablets, coated tablets, dragées, hard and soft gelatine capsules, solutions, emulsions or suspensions, orally, e.g. in the form of buccal cavities, rectally, e.g. in the form of suppositories, parenterally, e.g. in the form of injection solutions or infusion solutions for intramuscular, intravenous or subcutaneous injection, or topically, e.g. in the form of ointments, creams or oils. Oral administration is preferred.
  • compositions can be effected in a manner which will be familiar to any person skilled in the art by bringing the described compounds of formula I and/or their pharmaceutically acceptable salts, optionally in combination with other therapeutically valuable substances, into a galenical administration form together with suitable, non-toxic, inert, therapeutically compatible solid or liquid carrier materials and, if desired, usual pharmaceutical adjuvants.
  • Suitable carrier materials are not only inorganic carrier materials, but also organic carrier materials.
  • lactose, corn starch or derivatives thereof, talc, stearic acid or its salts can be used as carrier materials for tablets, coated tablets, dragées and hard gelatine capsules.
  • Suitable carrier materials for soft gelatine capsules are, for example, vegetable oils, waxes, fats and semi-solid and liquid polyols (depending on the nature of the active ingredient no carriers might, however, be required in the case of soft gelatine capsules).
  • Suitable carrier materials for the production of solutions and syrups are, for example, water, polyols, sucrose, invert sugar and the like.
  • Suitable carrier materials for injection solutions are, for example, water, alcohols, polyols, glycerol and vegetable oils.
  • Suitable carrier materials for suppositories are, for example, natural or hardened oils, waxes, fats and semi-liquid or liquid polyols.
  • Suitable carrier materials for topical preparations are glycerides, semi-synthetic and synthetic glycerides, hydrogenated oils, liquid waxes, liquid paraffins, liquid fatty alcohols, sterols, polyethylene glycols and cellulose derivatives.
  • Usual stabilizers preservatives, wetting and emulsifying agents, consistency-improving agents, flavor-improving agents, salts for varying the osmotic pressure, buffer substances, solubilizers, colorants and masking agents and antioxidants come into consideration as pharmaceutical adjuvants.
  • the therapeutically effective amount or dosage of the compounds of formula I can vary within wide limits depending on the disease to be controlled, the age and the individual condition of the patient and the mode of administration, and will, of course, be fitted to the individual requirements in each particular case. For adult patients a daily dosage of about 1 to 100 mg, especially about 1 to 50 mg, comes into consideration. Depending on severity of the disease and the precise pharmacokinetic profile the compound could be administered with one or several daily dosage units, e.g. in 1 to 3 dosage units.
  • compositions conveniently contain about 1-100 mg, preferably 5-50 mg, of a compound of formula I.
  • Total cholesterol, HDL-cholesterol, and triglycerides were determined by measuring total cholesterol, HDL-cholesterol, and triglyceride using colorimetric enzymatic assays (Roche Diagnostic GmbH, Mannheim, Germany). HDL-C was also quantified using size exclusion chromatography on superpose-6 column using a SMART system (Pharmacia). Lipoprotein distribution was calculated assuming a Gaussian distribution for each peak, using a nonlinear, least-squares curve-fitting procedure to calculate the area under the curve (AUC). Compound concentration was also determined in plasma.
  • Efficacy of compounds in modulating plasma lipid levels was determined also in obese male Sprague Dawley rats after 28-29 days administration of compounds.
  • Male Sprague-Dawley rats of 10 weeks of age were fed a high fat diet during 3 weeks.
  • Obese rats were distributed in groups according to homogeneous BW and FI evaluated a week before the start of the treatment. Treatment was administered as food-Admix. On day 29, blood was taken in the morning under slight anesthesia (retro-orbital method) in post-prandial conditions i.e. 4 h after food was removed. Plasma was separated from blood by low speed centrifugation and selected organs were taken (e.g liver, fat).
  • Total cholesterol, HDL-cholesterol, and triglycerides were determined by measuring total cholesterol, HDL-cholesterol and triglyceride using calorimetric enzymatic assays (Roche Diagnostic GmbH, Mannheim, Germany). HDL-C was also quantified using size exclusion chromatography on superpose-6 column using a SMART system (Pharmacia). Lipoprotein distribution was calculated assuming a Gaussian distribution for each peak, using a nonlinear, least-squares curve-fitting procedure to calculate the area under the curve (AUC). Compound concentration was also determined in plasma.
  • Efficacy of compounds in modulating plasma lipid levels was determined in hamsters after 5 days of daily administration of compounds. Male hamsters of 6-8 weeks of age were used in the studies. After one week of acclimation, blood samples were collected from 4 hour-fasted animals for plasma lipid determination. Animals were then assigned to treatment groups based on HDL-cholesterol levels. Compounds were administered by gavage, once daily for five days. Control animals received vehicle alone. Blood was collected on day five from 4 hour-fasted hamsters, 2 hours after a final treatment, for plasma lipid analysis.
  • Total cholesterol, HDL-cholesterol, LDL-cholesterol, and triglycerides were determined using calorimetric enzymatic assays (Roche Diagnostic GmbH, Mannheim, Germany).
  • HDL-cholesterol, LDL-cholesterol, and VLDL-cholesterol levels were also quantified using size exclusion chromatography on superpose-6 column using a SMART system (Pharmacia).
  • Lipoprotein distribution was calculated assuming a Gaussian distribution for each peak, using a nonlinear, least-squares curve-fitting procedure to calculate the area under the curve. Compound concentration was also determined in plasma.
  • Efficacy of compounds in modulating plasma lipid levels was also determined in cholesterol/fat fed hamsters.
  • the protocol is identical as described above except that animals are fed with chow diet enriched with 10% (w/w) saturated fat and 0.05% (w/w) cholesterol. Animals received this high fat diet 2 weeks before starting compound administration and continued this diet throughout the study. The 2 weeks pre-treatment induced an increase in plasma cholesterol and triglyceride levels allowing a better assessment of LDL-C and triglyceride changes.
  • 5-Bromo-6-chloro-3-pyridinecarboxylic acid methyl ester (42.2 g, 0.169 mol, CA 78686-77-8) was dissolved in toluene (840 mL). To this solution was added with stirring [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) CH 2 Cl 2 (6.9 g, 8.4 mmol), 4-chlorophenylboronic acid (27.2 g, 0.169 mol) and sodium carbonate solution (2M, 170 mL). This mixture was heated to 90° C. for 1 h and cooled to room temperature. Water (400 mL) was added, the phases were separated and the water mixture was extracted with ethylacetate.
  • 6-Chloro-5-(4-chloro-phenyl)-nicotinic acid methyl ester (30.9 g, 0.11 mol) was dissolved in a mixture of tetrahydrofuran (750 mL) and water (250 mL). Lithiumhydroxid monohydrate (13.8 g, 0.33 mol) was added and the mixture was stirred and heated at reflux-temperature for 1 h. After cooling to room temperature the mixture was acidified with hydrochloric acid (2N, 240 mL) and extracted with methyl-t-butylether. Organic phases were pooled, dried with MgSO4 and the mixture concentrated in vacuo. The title compound crystallized from the concentrated solution as a white solid (quant.); MS (ISP) 266.0 (M ⁇ H)
  • 6-Chloro-5-(4-chloro-phenyl)-nicotinic acid (22.3 g, 0.083 mol) was dissolved in dimethylsulfoxide (130 mL). To this solution was added (hydroxymethyl)cyclopropane (10.1 g, 0.125 mol) and potassium hydroxide powder (18.7 g, 0.333 mol). This mixture was reacted (in ten portions) for 20 min in a microwave at 100° C. The reaction mixture was poured into ice-water (500 mL) and citric acid (10%, 3000 mL) was added with stirring. Stirring was continued for 30 min during which time the product precipitated.
  • N-Bromosuccinimide (1.2 g, 6.7 mmol) and 2,2′-azobis-(2-methyl-propionitrile) (5 mg) were added to a solution of 2-butoxy-3-(2-fluoro-5-trifluoromethyl-phenyl)-5-methyl-pyridine (0.96 g, 2.9 mmol) in carbon tetrachloride (30 mL).
  • the mixture was irradiated and boiled with a halogen lamp for 2 h during which time 5 mg of 2,2′-azobis-(2-methyl-propionitrile) was added every 30 min. After cooling the mixture was poured onto sodium bisulfite solution (38-40%, 30 mL). This was extracted with dichloromethane.
  • 6-Butoxy-5-(2-fluoro-5-trifluoromethyl-phenyl)-nicotinic acid (0.10 g, 0.3 mmol) was dissolved in DMF (5 mL). To the solution was added TBTU (0.10 g, 0.3 mmol), N,N-diisopropylethyl amine (0.24 mL, 1.4 mmol) and (1R,2R)-2-amino-cyclohexanol (47 mg, 0.3 mmol). The reaction mixture was stirred for 18 h at room temperature.
  • Tetrakis(triphenylphosphine)palladium (0.24 g) is added at room temperature to a solution of 2-amino-3,5-dibromopyrazine (0.51 g) in dimethoxyethane (12 mL). The mixture is stirred for 30 min and sodium carbonate (0.53 g), water (6 mL) and 2-chlorophenylboronic acid (0.32 g) are added and the mixture is stirred for 18 h at 100° C. The mixture is cooled, citric acid (10%, 20 mL) is added and the mixture is extracted with ethyl acetate (3 ⁇ 50 mL).
  • the title compound was synthesized in analogy to Example 19, using 5-bromo-3-(2-chloro-phenyl)-pyrazin-2-ylamine and bromocyclopentane in step b, carbonylation as in step c, saponification as in step d and amide coupling with (1R,2R)-2-amino-cyclohexanol hydrochloride as in step e to give the title compound as a white solid, MS (ISP) 415.3 (M+H) + .
  • the title compound was synthesized in analogy to Example 19, using 2-amino-3,5-dibromopyrazine and 4-chlorophenylboronic acid in step a, 1-bromo-5-chloropentane in step b, carbonylation as in step c, saponification as in step d and amide coupling with 2-amino-1-indanol as in step e to give the title compound as a light yellow foam, MS (ISP) 449.3 (M+H) + .
  • the title compound was synthesized in analogy to Example 19, using 2-amino-3,5-dibromopyrazine and 3,4-dichlorophenylboronic acid in step a, 1-bromo-4-chlorobutane in step b, carbonylation as in step c, saponification as in step d and amide coupling with rac-1-amino-2-cyclopropyl-propan-2-ol as in step e to give the title compound as a light yellow solid, MS (ISP) 435.3, 437.2 (M+H) + .
  • N- ⁇ 2-[3-(4-Chloro-phenyl)-5-((R)-4-isobutyl-2,2-dimethyl-oxazolidine-3-carbonyl)-pyridin-2-yloxy]-ethyl ⁇ -propionamide (82 mg, 0.16 mmol) was dissolved in methanol (0.35 mL). To the solution was added camphorsulfonic acid (1.6 mg, 0.007 mmol) and the reaction mixture was stirred for 1 h at RT. The mixture was poured into water, sodiumbicarbonate was added and the mixture extracted with ethyl acetate.
  • the title compound was synthesized in analogy to Example 19, carbonylating 5-bromo-3-(4-chloro-phenyl)-2-cyclopropylmethoxy-pyrazine as in step c, saponification as in step d and amide coupling with (R)-leucinol as in step e to give the title compound as a light yellow solid, MS (ISP) 404.5 (M+H) + .
  • Example 36b The title compound was synthesized in analogy to the procedure described for the preparation of Example 36b, using 5-amino-6-(4-chloro-phenyl)-pyrazine-2-carboxylic acid methyl ester as starting material and isoamylnitrite, dibromomethane and trimethylbromosilane as reagents to give the title compound which was used in the next step without further purification.
  • Example 36c The title compound was synthesized in analogy to the procedure described for the preparation of Example 36c, using 5-bromo-6-(4-chloro-phenyl)-pyrazine-2-carboxylic acid ((1R,2R)-2-hydroxy-cyclohexyl)-amide, and chlorophenol (commercially available) as starting materials to give the title compound as a white solid. mp.: 154-155° C., MS (ISP): 458.3, 460.3 (M+H) + .
  • Example 43 The title compound was synthesized in analogy to the procedure described for the preparation of Example 43, using 5-bromo-6-chloro-nicotinic acid methyl ester, 4-chlorophenyl-boronic acid (commercially available), rac-1-methoxy-2-butanol (commercially available), and (1R,2R)-2-amino-cyclohexanol (commercially available) as starting materials.
  • Example 40a to b The title compound was synthesized in analogy to the procedure described for the preparation of Example 40a to b using 2-amino-3,5-dibromopyrazine, 4-trifluoromethylphenylboronic acid, 2-methoxy-ethanol (commercially available), and rac-1-amino-2-cyclopropyl-propan-2-ol as starting materials to give the title compound as a colorless oil, MS (ISP): 440.3 (M+H) + .
  • Example 40a to b The title compound was synthesized in analogy to the procedure described for the preparation of Example 40a to b, using 2-amino-3,5-dibromopyrazine, 4-trifluoromethylphenylboronic acid, hydroxymethylcyclopropane (commercially available), and rac-1-amino-2-cyclopropyl-propan-2-ol as starting materials to give the title compound as a colorless oil, MS (ISP): 436.1 (M+H) + .
  • Example 40a to b The title compound was synthesized in analogy to the procedure described for the preparation of Example 40a to b, using 2-amino-3,5-dibromopyrazine, 4-trifluoromethylphenylboronic acid, 3-methoxy-1-propanol (commercially available), and rac-1-amino-2-cyclopropyl-propan-2-ol as starting materials to give the title compound as a colorless oil, MS (ISP): 454.2 (M+H) + .
  • Example 40a to b The title compound was synthesized in analogy to the procedure described for the preparation of Example 40a to b, using 2-amino-3,5-dibromopyrazine, 4-trifluoromethylphenylboronic acid, 1-butanol (commercially available), and rac-1-amino-2-cyclopropyl-propan-2-ol as starting materials to give the title compound as a colorless oil, MS (ISP): 438.1 (M+H) + .
  • Example 36a The title compound was synthesized in analogy to the procedure described for the preparation of Example 39a to d using 5-bromo-3-(4-chloro-phenyl)-pyrazin-2-ylamine (Example 36a), and (R)- ⁇ -(aminomethy)- ⁇ -methyl-cyclopropanemethanol (WO 2006/106054) as starting materials to give the title compound as an off-white solid, mp.: 125-126° C.
  • Example 40 a The title compound was synthesized in analogy to the procedure described for the preparation of Example 36 using 5-bromo-3-(4-fluoro-phenyl)-pyrazine-2-ylamine (example 40 a), (R)- ⁇ -(aminomethyl)- ⁇ -methyl-cyclopropanemethanol (WO 2006/106054) and hydroxymethylcyclopropane as starting materials to give the title compound as an off-white solid, MS (ISP): 386.3 (M+H) + .
  • Example 40 a The title compound was synthesized in analogy to the procedure described for the preparation of Example 36 using 5-bromo-3-(4-fluoro-phenyl)-pyrazine-2-ylamine (example 40 a), (S)- ⁇ -(aminomethyl)- ⁇ -methyl-cyclopropanemethanol (WO 2006/106054) and hydroxymethylcyclopropane as starting materials to give the title compound as an off-white solid, MS (ISP): 386.3 (M+H) + .
  • the title compound was synthesized in analogy to the procedure described for the preparation of Example 31, using 5-bromo-6-chloro-3-pyridinecarboxylic acid, 3-methoxy-1-propanol (commercially available), 4-fluorophenyl-boronic acid (commercially available), and (1R,2R)-2-amino-cyclohexanol (commercially available) to give the title compound as a colorless solid, MS (ISP): 403.5 (M+H) + .
  • Example 19a The title compound was synthesized in analogy to the procedure described for the preparation of Example 19a using 2-amino-3,5-dibromopyrazine, and 4-trifluoro-methylphenylboronic acid (commercially available) as starting materials to give the title compound as a yellow solid, MS (ISP) 317.9, 320.0 (M+H) + .
  • Example 39a The title compound was synthesized in analogy to the procedure described for the preparation of Example 39a to d using 5-bromo-3-(4-trifluoro-phenyl)-pyrazin-2-ylamine, and (R)- ⁇ -(aminomethyl)- ⁇ -methyl-cyclopropanemethanol (WO 2006/106054) as starting materials to give the title compound as a colorless foam, MS (ISP): 444.1, 446.0(M+H) + .
  • Example 43 The title compound was synthesized in analogy to the procedure described for the preparation of Example 43, using 5-bromo-6-chloro-nicotinic acid methyl ester, cyclopropylmethanol (commercially available), 4-fluorophenylboronic acid (commercially available) and rac-1-amino-2-cyclopropyl-propan-2-ol (commercially available) as starting materials.
  • the two enantiomers were separated by column chromatography on chiral phase. MS (ISP): 385.3 (M+H + ).
  • Example 43 The title compound was synthesized in analogy to the procedure described for the preparation of Example 43, using 5-bromo-6-chloro-nicotinic acid methyl ester, cyclopropylmethanol (commercially available), 4-trifluoromethoxyphenylboronic acid (commercially available) and rac-1-amino-2-cyclopropyl-propan-2-ol (commercially available) as starting materials.
  • the two enantiomers were separated by column chromatography on chiral phase. MS (ISP): 451.1 (M+H + ).
  • 5-Bromo-6-hydroxy-3-pyridinecarboxylic acid methyl ester (1.0 g, 4.3 mmol) was suspended in tetrahydrofurane, 1-methyl-1H-imidazole-2-methanol (0.72 g, 6.5 mmol) and triphenylphosphine was added (1.70 g, 6.5 mmol). To this mixture was added with stirring diisopropyl-azodicarboxylate (1.35 mL, 6.5 mmol) at room temperature.
  • Example 40 a The title compound was synthesized in analogy to the procedure described for the preparation of Example 36 using 5-bromo-3-(4-fluoro-phenyl)-pyrazine-2-ylamine (example 40 a) and (1R,2R)-2-amino-1-cyclohexanol as starting materials to produce 5-bromo-6-(4-fluoro-phenyl)-pyrazine-2-carboxylic acid ((1R,2R)-2-hydroxy-cyclohexyl)-amide and in analogy to Example 74 reaction with 2,2,2-trifluoroethanol to give the title compound as a white solid, mp.: 133-134° C.
  • Example 40 a The title compound was synthesized in analogy to the procedure described for the preparation of Example 36 using 5-bromo-3-(4-fluoro-phenyl)-pyrazine-2-ylamine (example 40 a), (1R,2R)-2-amino-1-cyclohexanol and 2-methoxyethanol as starting materials to give the title compound as a white solid, MS (ISP): 390.4 (M+H) + .
  • Example 40 a The title compound was synthesized in analogy to the procedure described for the preparation of Example 36 using 5-bromo-3-(4-fluoro-phenyl)-pyrazine-2-ylamine (example 40 a), (1R,2R)-2-amino-1-cyclohexanol and hydroxymethylcyclopropane as starting materials to give the title compound as a white foam, MS (ISP): 386.3 (M+H) + .
  • the title compound was synthesized from 5-bromo-6-cyclopropylmethoxy-nicotinic acid (example 31a) by Suzuki reaction with 4-cyanophenyl-boronic acid (in analogy to 31 c) and amide coupling with (R)- ⁇ -(aminomethyl)- ⁇ -methyl-cyclopropanemethanol (WO 2006/106054) (in analogy to example 31b), to give the title compound as a white solid, MS (ISP): 392.2 (M+H) + .
  • Example 62 The title compound was synthesized in analogy to the procedure described for the preparation of Example 62 using 5-bromo-3-(4-trifluoromethoxy-phenyl)-pyrazine-2-ylamine (prepared in analogy to example 40a), (1R,2R)-2-amino-1-cyclohexanol and cyclopropylmethyl-methyl-amine hydrochloride as starting materials to give the title compound as an off-white foam, MS (ISP): 465.4 (M+H) + .
  • Example 5b The title compound was synthesized in analogy to Example 5 d from 6-chloro-5-(4-chloro-phenyl)-nicotinic acid (Example 5b) and (1R,2R)-2-amino-1-cyclohexanol to yield 6-chloro-5-(4-chloro-phenyl)-N-((1R,2R)-2-hydroxy-cyclohexyl)-nicotinamide as a colorless solid, MS (ISP) 364.9, 366.9 (M+H) + .
  • the reaction mixture was heated at 120° C. for 20 hours under an atmosphere of nitrogen.
  • the reaction mixture was cooled to room temperature and the solids were removed by filtration.
  • the solids were washed with ethyl acetate (100 ml), the organic liquors were combined and washed with saturated aqueous ammonium chloride solution (3 ⁇ 50 ml).
  • the organic layer was then dried over MgSO4 and concentrated in vacuo. Purification by flash column chromatography (20% ethyl acetate/heptane) gave the title compound as brown oil.
  • Aqueous 1M lithium hydroxide solution (2.25 ml, 2.25 mmol) was added to a solution of 65-(4-Chloro-phenyl)-6-(2-pyridin-2-yl-ethyl)-nicotinic acid methyl ester (0.49 mmol) in tetrahydrofuran and methanol (6:1, 7 ml). The reaction mixture was stirred for 20 hours at room temperature then concentrated in vacuo.
  • Example 140 The title compound was synthesized in analogy to the procedure described for the preparation of Example 140, using 5-ethynyl-1-methyl-1H-imidazole (CAN 71759-92-7), 6-chloro-5-(4-trifluoromethyl-phenyl)-nicotinic acid methyl ester, and (1R,2R)-2-amino-cyclohexanol (commercially available) as starting materials, LC at 215 nm; Rt 3.11: 100%, m/z (ES + ): 473.5 (M+H).
  • 5-ethynyl-1-methyl-1H-imidazole CAN 71759-92-7
  • 6-chloro-5-(4-trifluoromethyl-phenyl)-nicotinic acid methyl ester 6-chloro-5-(4-trifluoromethyl-phenyl)-nicotinic acid methyl ester
  • (1R,2R)-2-amino-cyclohexanol commercial
  • Example 140 The title compound was synthesized in analogy to the procedure described for the preparation of Example 140, using 2-ethynyl-5-fluoro-pyridine (CAN 884494-34-2), 6-chloro-5-(4-chloro-phenyl)-nicotinic acid methyl ester, and (1R,2R)-2-amino-cyclohexanol (commercially available) as starting materials, LC at 215 nm; Rt 4.12: 99%, m/z (ES + ): 454.5 (M+H).
  • 2-ethynyl-5-fluoro-pyridine CAN 884494-34-2
  • 6-chloro-5-(4-chloro-phenyl)-nicotinic acid methyl ester 6-chloro-5-(4-chloro-phenyl)-nicotinic acid methyl ester
  • (1R,2R)-2-amino-cyclohexanol commercially available
  • Example 140 The title compound was synthesized in analogy to the procedure described for the preparation of Example 140, using 2-ethynyl-5-fluoro-pyridine (CAN 884494-34-2), 6-chloro-5-(4-trifluoromethyl-phenyl)-nicotinic acid methyl ester, and (1R,2R)-2-amino-cyclohexanol (commercially available) as starting materials, LC at 215 nm; Rt 4.26: 95%, m/z (ES + ): 488.5 (M+H).
  • 2-ethynyl-5-fluoro-pyridine CAN 884494-34-2
  • 6-chloro-5-(4-trifluoromethyl-phenyl)-nicotinic acid methyl ester 6-chloro-5-(4-trifluoromethyl-phenyl)-nicotinic acid methyl ester
  • (1R,2R)-2-amino-cyclohexanol commercially
  • Example 140 The title compound was synthesized in analogy to the procedure described for the preparation of Example 140, using 2-ethynyl-pyridine (CAN 1945-84-2), 6-chloro-5-(4-chloro-phenyl)-nicotinic acid methyl ester, and (R)- ⁇ -(aminomethyl)- ⁇ -methyl-cyclopropanemethanol as starting materials, LC at 215 nm; Rt 3.16: 88%, m/z (ES + ): 436.4 (M+H).
  • Example 140 The title compound was synthesized in analogy to the procedure described for the preparation of Example 140, using 2-ethynyl-pyridine (CAN 1945-84-2), 6-chloro-5-(4-trifluoromethyl-phenyl)-nicotinic acid methyl ester, and (R)- ⁇ -(aminomethyl)- ⁇ -methyl-cyclopropanemethanol as starting materials, LC at 215 nm; Rt 3.30: 98%, m/z (ES + ): 470.5 (M+H).
  • Tetrakis (triphenylphosphine) palladium (0) (1.12 g, 0.97 mmol, 0.05 eq) was added portion-wise to a solution of 2-amino-3,5-dibromopyrazine (5.01 g, 19.76 mmol, 1.0 eq) in 1,2-dimethoxyethane (100 ml) at room temperature and the reaction stirred for 0.5 hours.
  • a solution of sodium carbonate (5.30 g, 50.5 mmol, 2.6 eq) in water (50 ml) was added portion-wise to the resulting mixture, followed by 4-fluorophenylboronic acid (3.08 g, 21.9 mmol, 1.1 eq).
  • PS—N,N-diisopropyl-ethylamine (0.31 g, 1.04 mmol, 3.0 eq) resin was added to the reaction and the mixture stirred overnight at room temperature.
  • PS-isocyanate (0.15 g, 0.358 mmol, 1.0 eq) and PS-aminomethyl (0.15 g, 0.358 mmol, 1.0 eq) resin were added to the reaction and the mixture stirred for a further 12 hrs at room temperature. The reaction was filtered and resin washed successfully with dichloromethane (2 ⁇ 3 ml).
  • the ability of compounds of the invention to stimulate cholesterol efflux is determined in replicate cultures of THP-1 cells in 96-well microplates.
  • Cells are plated at an initial density of 150,000 cells/well and differentiated to macrophages with the addition of PMA (100 ng/ml) for 72 hrs in 10% fetal bovine serum, 3 ⁇ l/L of b-mercaptoethanol, RPMI-1640 medium.
  • PMA 100 ng/ml
  • RPMI-1640 medium fetal bovine serum
  • Cells are washed once with RPMI-1640 and loaded with RPMI-1640 medium containing 2% FCS, 50 ⁇ g/ml acetylated LDL, and 10 ⁇ Ci/ml [ 3 H]cholesterol for 48 hours at 37° C.
  • RPMI-1640 After loading the cells are washed once with RPMI-1640 and incubated with the compound of interest from DMSO solutions for an additional 24 hrs in RPMI-1640 medium containing 1 mg/ml fatty acid free-bovine serum albumin (BSA). Upon incubation cells are washed once, and cholesterol efflux is induced by the addition of 10 ⁇ g/ml Apolipoprotein AI in RPMI-1640 containing 1 mg/ml BSA and in the presence of the compound for an additional 6 hrs. Following incubation radioactivity is determined in the supernatants and cholesterol efflux is expressed as the percent stimulation over replicate cultures treated only with DMSO. Sigmoidal curves were fitted using the XLfit3 program (ID Business Solutions Ltd. UK) and EC 50 values were determined.
  • the compounds of the present invention exhibit EC 50 values in a range of 0.01 ⁇ M to 100 ⁇ M in the cholesterol efflux assay.
  • the compounds of the present invention have EC 50 values in a range of 0.01 ⁇ M to 10.0 ⁇ M; more preferably 0.01 ⁇ M to 1 ⁇ M.
  • Film coated tablets containing the following ingredients can be manufactured in a conventional manner: Ingredients Per tablet Kernel: Compound of formula (I) 10.0 mg 200.0 mg Microcrystalline cellulose 23.5 mg 43.5 mg Lactose hydrous 60.0 mg 70.0 mg Povidone K30 12.5 mg 15.0 mg Sodium starch glycolate 12.5 mg 17.0 mg Magnesium stearate 1.5 mg 4.5 mg (Kernel Weight) 120.0 mg 350.0 mg Film Coat: Hydroxypropyl methyl cellulose 3.5 mg 7.0 mg Polyethylene glycol 6000 0.8 mg 1.6 mg Talc 1.3 mg 2.6 mg Iron oxyde (yellow) 0.8 mg 1.6 mg Titan dioxide 0.8 mg 1.6 mg
  • the active ingredient is sieved and mixed with microcrystalline cellulose and the mixture is granulated with a solution of polyvinylpyrrolidone in water. The granulate is then mixed with sodium starch glycolate and magnesium stearate and compressed to yield kernels of 120 or 350 mg respectively. The kernels are lacquered with an aq. solution/suspension of the above mentioned film coat.
  • Capsules containing the following ingredients can be manufactured in a conventional manner: Ingredients Per capsule Compound of formula (I) 25.0 mg Lactose 150.0 mg Maize starch 20.0 mg Talc 5.0 mg
  • the components are sieved and mixed and filled into capsules of size 2.
  • Injection solutions can have the following composition: Compound of formula (I) 3.0 mg Polyethylene glycol 400 150.0 mg Acetic acid q.s. ad pH 5.0 Water for injection solutions ad 1.0 ml
  • the active ingredient is dissolved in a mixture of Polyethylene glycol 400 and water for injection (part).
  • the pH is adjusted to 5.0 by addition of acetic acid.
  • the volume is adjusted to 1.0 ml by addition of the residual amount of water.
  • the solution is filtered, filled into vials using an appropriate overage and sterilized.

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US20080070931A1 (en) * 2006-09-14 2008-03-20 Paul Hebeisen 5-phenyl-nicotinamide derivatives
US20090247588A1 (en) * 2008-03-31 2009-10-01 Paul Hebeisen 2-trifluoromethylnicotinamide derivatives as hdl-cholesterol raising agents
US20090247550A1 (en) * 2008-03-31 2009-10-01 Paul Hebeisen 3-trifluoromethyl-pyrazine-2-carboxylic acid amide derivatives as hdl-cholesterol raising agents
US8410107B2 (en) 2010-10-15 2013-04-02 Hoffmann-La Roche Inc. N-pyridin-3-yl or N-pyrazin-2-yl carboxamides
US8669254B2 (en) 2010-12-15 2014-03-11 Hoffman-La Roche Inc. Pyridine, pyridazine, pyrimidine or pyrazine carboxamides as HDL-cholesterol raising agents
US20150158815A1 (en) * 2012-08-23 2015-06-11 Hoffmann-La Roche Inc. Novel phenyl-pyridine/pyrazine amides for the treatment of cancer

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EP2074096B1 (fr) 2012-06-27
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US8188093B2 (en) 2012-05-29
ZA200902353B (en) 2010-04-28
US20090143409A1 (en) 2009-06-04
BRPI0717845A2 (pt) 2015-06-16
US20100267745A1 (en) 2010-10-21
EP2074096A1 (fr) 2009-07-01
RU2454405C2 (ru) 2012-06-27
JP2010505789A (ja) 2010-02-25
US7812028B2 (en) 2010-10-12
EP2450350A1 (fr) 2012-05-09
RU2009116670A (ru) 2010-11-10
AU2007304365A1 (en) 2008-04-10
KR101107896B1 (ko) 2012-01-25
IL197577A0 (en) 2009-12-24
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CA2664119A1 (fr) 2008-04-10

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