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  • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
  • C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
• • A—HUMAN NECESSITIES
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  • 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
  • A61K31/4427—Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems
  • A61K31/444—Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems containing a six-membered ring with nitrogen as a ring heteroatom, e.g. amrinone
• • A—HUMAN NECESSITIES
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  • 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
  • A61K31/445—Non condensed piperidines, e.g. piperocaine
  • A61K31/4523—Non condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems
  • A61K31/4545—Non condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a six-membered ring with nitrogen as a ring hetero atom, e.g. pipamperone, anabasine
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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  • 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
  • A61K31/47—Quinolines; Isoquinolines
  • A61K31/4709—Non-condensed quinolines and containing further heterocyclic rings
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  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
  • A61K31/499—Spiro-condensed pyrazines or piperazines
• • A—HUMAN NECESSITIES
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  • 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
  • A61K31/535—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one oxygen as the ring hetero atoms, e.g. 1,2-oxazines
  • A61K31/5375—1,4-Oxazines, e.g. morpholine
  • A61K31/5377—1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
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  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
• • A—HUMAN NECESSITIES
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  • A61P19/00—Drugs for skeletal disorders
  • A61P19/02—Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P25/00—Drugs for disorders of the nervous system
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  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P25/00—Drugs for disorders of the nervous system
  • A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P35/00—Antineoplastic agents
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P35/00—Antineoplastic agents
  • A61P35/02—Antineoplastic agents specific for leukemia
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
  • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
  • C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
  • C07D417/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing three or more hetero rings
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
  • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
  • C07D471/10—Spiro-condensed systems
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
  • C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
  • C07D491/10—Spiro-condensed systems
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  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
  • C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
  • C07D498/10—Spiro-condensed systems
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  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D519/00—Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00

Definitions

• the invention relates to a series of novel substituted 2-aminopyridine compounds that are useful in the treatment of hyperproliferative diseases such as cancer, as well as inflammatory or degenerative diseases, in mammals. Also encompassed by the present invention is the use of such compounds in the treatment of hyperproliferative,
• compositions containing such compounds are provided.
• Wnt proteins comprise a large family of cysteine-rich secreted ligands that are highly conserved among species.
• Wnt signaling three different pathways are believed to be activated by Wnt signaling: the canonical Wnt / ⁇ -catenin cascade, the noncanonical planar cell polarity pathway, and the Wnt Ca 2+ pathway.
• the canonical pathway is best understood and has the highest cancer relevance. Therefore, this project is focusing on canonical Wnt / ⁇ -catenin signaling.
• ⁇ -catenin is the key mediator of Wnt signaling.
• Wnt ligands a protein complex, that contains Axin, adenomatous polyposis coli (APC), glycogen synthase kinase 3 ⁇ ( ⁇ 8 ⁇ 3 ⁇ ) and casein kinase 1 (CK1), functions in
• T cell factor / lymphoid enhancer factor TNF/LEF
• TNF/LEF DNA-binding T cell factor / lymphoid enhancer factor
• Many different target genes of canonical Wnt / ⁇ -catenin signaling have been described (e.g. c-Myc, Cyclin D1 , VEGF, survivin) which are involved in cell growth, migration and survival (Logan & Nusse, Annu Rev Cell Dev Biol. 2004;20:781- 13 002966
• the Wnt / ⁇ -catenin signaling cascade is frequently over-activated in different tumor types and several proteins of the pathway act as oncogenes or tumor suppressors (Giles et al., Biochim Biophys Acta. 2003 Jun 5;1653(1):1-24, van Es et al., Curr Opin Genet Dev. 2003 Feb;13(1):28-33).
• the tumor suppressor APC is mutated in nearly 60% of all colon cancers.
• many colon cancers express mutated ⁇ -catenin which cannot be phosphorylated and is therefore stabilized.
• loss of function mutations of the tumor suppressor Axin have been detected in hepatocellular, lung and colon cancers
• interference with Wnt / ⁇ -catenin signaling is a conceivable strategy for the treatment of cancer (reviewed in Dihlmann & von Knebel Doeberitz, Int. J. Cancer: 113, 515-524 (2005), Luu et al., Curr Cancer Drug Targets. 2004 Dec;4(8):653-71).
• WO 2010/041054 discloses a series of chemical compounds which act on the Wnt pathway.
• compound ⁇ 60 disclosed on page 73 of WO 2010/041054, while exhibiting promising inhibitory activity (see Table A on page 93), at the same time has a high human hepatic microsomal intrinsic clearance (CLint).
• CLint human hepatic microsomal intrinsic clearance
• the object of the present invention to provide novel Wnt pathway inhibitors useful in the treatment of inflammatory or hyperproliferative diseases, such as cancer in mammals, with superior pharmacological properties both with respect to their activities as well as their solubility, metabolic clearance and bioavailability characteristics.
• this invention provides novel substituted 2-aminopyridine compounds or their stereoisomers or tautomers, or pharmaceutically acceptable salts, that are Wnt pathway inhibitors and useful as medicaments, especially in the treatment of the diseases mentioned above and below.
• heterocycle having 1-3 heteroatoms, selected from. O, S and N, which is substituted by 1 or 2 oxo groups, which heterocycle may further be monosubstituted by LA, and which heterocycle may form a condensed ring system with a phenyl or pyridyl group
• R 4 is H, LA, CONH(LA) or X-Cyc,
• R is H, F,
• heterocycle having 1-3 heteroatoms, selected from O, S and N, which is, optionally, independently mono- di- or trisubstituted by oxo, LA, NH 2 , NH(LA), N(LA) 2 , HO(LA)-, or which is, optionally, monosubsituted by CA, red monocyclic, aliphatic or aromatic homo- or heterocycle having 1-3 heteroatoms, selected from O, S and N, which may be mono- or di-substituted by oxo, LA, NH 2 , NH(LA), N(LA) 2 , HO(LA)-, or monosubstituted by CA,
• LA is unbranched or branched alkyl, having 1 , 2, 3, 4 or 5 carbon
• 1 CH 2 group may be replaced by -0-, -NH- or -S0 2 -, and/or
• 1 CH group may be replaced by N
• CA is cycloalkyl having 3, 4, 5 or 6 carbon atoms, or
• cycloalkyl alkyl having 3, 4, 5 or 6 ring carbon atoms and 1 or 2 non-ring carbon atoms, in which cycloalkyl, or cycloalkyl alkyl, 1
• CH 2 group may be replaced by -0-, or 1 CH group may be replaced by N,
• Hal is F, CI, Br or I.
• the invention relates, in particular, to the compounds of the Formula (I) in which at least one of the said residues has one of the preferred meanings indicated below.
• Hal denotes fluorine, chlorine, bromine or iodine, in particular fluorine, chlorine or bromine.
• LA denotes for example methyl, ethyl, trifluoromethyl, difluoromethyl, 1 ,1 ,1- trifluoroethyl, propyl, isopropyl, methoxyethyl, dimethylaminomethyl, butyl, isobutyl, sec- butyl or terf-butyl, isopropenyl, ethenyl, ethynyl or prop-1-ynyl.
• CA denotes for example cyclopropyl, (cyclopropyl)methyl, cyclobutyl, (cyclopentyl)ethyl, tetrahydopyranyl, pyrrolidin-1 -yl-ethyl, piperidinyl or oxetanyl.
• Cyc denotes, for example phenyl, oxazolidine-2-, 3-, 4- or 5-yl, isoxazolidine-2-, 3-, 4- or 5-yl, 2,3-dihydro-2-, -3-, -4- or -5-furyl, 2,5-dihydro-2-, -3-, -4- or -5-furyl, tetrahydro-2- or -3-furyl, tetrahydro-1-, -2- or -4-imidazolyl, 2,3-dihydro-1-, -2-, -3-, -4- or -5-pyrazolyl, tetrahydro-1-, -3- or -4-pyrazolyl, 1 ,4-dihydro-1-, -2-, -3- or -4-pyridyl, 1 ,2,3,4-tetrahydro- 1-, -2-, -3-, -4-, -5- or -6-pyrid
• 3-pyrrolidinyl 1-, 2, 4- or 5-imidazolyl, 1-, 3-, 4- or 5-pyrazolyl, 2-, 3- or 4-pyridyl, 2-, 4-, 5- or 6-pyrimidinyl, pyrazin-2- or 3-yl, pyridazin-3- or 4-yl, 1 ,2,3-triazol-1-, -4- or -5-yl, 1 ,2,4- triazol-1-, -3- or 5-yl, 1- or 5-tetrazolyl.
• R 6 is H
• LA unsubstituted, or monosubstituted by LA, OH, NH 2 , HO(LA)- or NH 2 (LA)-,
• R 1 is Hal or C(Hal) 3> in Subformula 7
• R 4 is morpholin-4-yl, 4-methyl-piperazin-1-yl, 1-methyl-1 H-pyrazol-3- yl, 6-amino-pyridin-3-yl, 1-(2-hydroxy-ethyl)-1 H-pyrazol-4-yl, 1- methyl-1 H-pyrazol-4-yl,
• R 4 , R 5 together with the phenyl ring they are attached to, form 1-methyl- 1 H-indazol-5-yl, 1 H-indazol-5-yl, 1-methyl-1 H-indazol-6-yl, 1-ethyl- 1 H-indazol-5-yl, 1-ethyl-1 H-indazol-6-yl, 1-isopropyl-1 H-indazol-6- yl, 2-0X0-2, 3-dihydro-benzooxazol-5-yl, (3H-benzooxazol-2-one)-5 yl, 1 -methyl-2-oxo-2,3-dihydro-1 H-indol-5-yl, 2-oxo-2,3-dihydro-1 H indol-5-yl, 1-methyl-2-oxo-2,3-dihydro-1 H-indol-6-yl, (3,4-dihydro- 1 H-quinolin-2-one)
• R 1 is F, CI or CF 3 , 02966
• R 1 is F, CI or CF 3 ,
• R 2 , R 3 together with the piperidine ring they are attached to, form (2,8- diaza-spiro[4.5]decan-1 -one)-8-yl, (1 -oxa-3,8-diaza- spiro[4.5]decan-2-one)-8-yl, (1 ,3,8-triaza-spiro[4.5]decane-2,4- dione)-8-yl,
• R 2 is H
• R 3 is CN, CONH 2 ,
• R 6 is H, in Subformula 13
• R 2 is H
• R 3 is CN
• R 6 is OH, and the remaining residues have the meaning as indicated for Formula (I).
• the compounds of the Formula (I) may have one or more centres of chirality. They may accordingly occur in various enantiomeric forms and be in racemic or optically active form.
• the invention therefore, also relates to the optically active forms, enantiomers, racemates, diastereomers, collectively: stereoisomers, of these compounds.
• the pharmaceutical activity of the racemates or stereoisomers of the compounds according to the invention may differ, it may be desirable to use the enantiomers.
• the end product or even the intermediates can be separated into P2013/002966 enantiomeric compounds by chemical or physical measures known to the person skilled in the art or even employed as such in the synthesis.
• diastereomers are formed from the mixture by reaction with an optically active resolving agent.
• suitable resolving agents are optically active acids, such as the R and S forms of tartaric acid, diacetyltartaric acid, dibenzoyltartaric acid, mandelic acid, malic acid, lactic acid, suitably N-protected amino acids (for example N-benzoylproline or N-benzenesulfonylproline), or the various optically active camphorsulfonic acids.
• optically active acids such as the R and S forms of tartaric acid, diacetyltartaric acid, dibenzoyltartaric acid, mandelic acid, malic acid, lactic acid, suitably N-protected amino acids (for example N-benzoylproline or N-benzenesulfonylproline), or the various optically active camphorsulfonic acids.
• eluents for this purpose are aqueous or alcoholic solvent mixtures, such as, for example, hexane/isopropanol/ acetonitrile, for example in the ratio 82:15:3.
• atoms may have atomic masses or mass numbers which differ from the atomic masses or mass numbers of the atoms which usually occur naturally.
• isotopes which are readily commercially available and which can be incorporated into a compound of the present invention by well-known methods include isotopes of hydrogen, carbon, nitrogen, oxygen, phosphorus, fluorine and chlorine, for example 2 H, 3 H, 13 C, 14 C, 15 N, 18 0, 17 0, 31 P, 32 P, 35 S, 8 F and 36 CI, respectively.
• the compounds of the present invention can be in the form of a prodrug compound.
• Prodrug compound means a derivative that is converted into a biologically active compound according to the present invention under physiological conditions in the living body, e.g., by oxidation, reduction, hydrolysis or the like, each of which is carried out enzymatically, or without enzyme involvement.
• prodrugs are compounds, wherein the amino group in a compound of the present invention is acylated, alkylated or phosphorylated, e.g., eicosanoylamino, alanylamino, pivaloyloxymethylamino or wherein the hydroxyl group is acylated, alkylated, phosphorylated or converted into the borate, e.g. acetyloxy, palmitoyloxy, pivaloyloxy, succinyloxy, fumaryloxy, alanyloxy or wherein the carboxyl group is esterified or amidated, or wherein a sulfhydryl group forms a disulfide bridge with a carrier molecule, e.g.
• a peptide that delivers the drug selectively to a target and/or to the cytosol of a cell.
• prodrugs are compounds, wherein the carboxylate in a compound of the present invention is for example converted into an alkyl-, aryl-, choline-, amino,
• tautomerism e.g., keto-enol tautomerism
• the individual forms e.g., the keto or the enol form
• stereoisomers e.g., enantiomers, cis/trans isomers, conformers and the like.
• isomers can be separated by methods well known in the art, e.g. by liquid chromatography. The same applies for enantiomers, e.g., by using chiral stationary phases. Additionally, enantiomers may be isolated by converting them into
• any enantiomer of a compound of the present invention may be obtained from stereoselective synthesis using optically pure starting materials
• the compounds of the present invention can be in the form of a pharmaceutically acceptable salt, a pharmaceutically acceptable solvate, or a pharmaceutically acceptable solvate of a pharmaceutically acceptable salt.
• the invention also comprises their corresponding pharmaceutically acceptable salts.
• the compounds of the present invention which contain acidic groups can be present in salt form, and can be used according to the invention, for example, as alkali metal salts, alkaline earth metal salts or as ammonium salts. More precise examples of such salts include sodium salts, potassium salts, calcium salts, magnesium salts or salts with ammonia or organic amines such as, for example, ethylamine, ethanolamine, triethanolamine or amino acids.
• Compounds of the present EP2013/002966 invention which contain one or more basic groups, i.e.
• acids which can be protonated, can be present in salt form, and can be used according to the invention in the form of their addition salts with inorganic or organic acids.
• suitable acids include hydrogen chloride, hydrogen bromide, phosphoric acid, sulfuric acid, nitric acid, methanesulfonic acid, p-toluenesulfonic acid, naphthalenedisulfonic acids, oxalic acid, acetic acid, tartaric acid, lactic acid, salicylic acid, benzoic acid, formic acid, propionic acid, pivalic acid, diethylacetic acid, malonic acid, succinic acid, pimelic acid, fumaric acid, maleic acid, malic acid, sulfaminic acid, phenylpropionic acid, gluconic acid, ascorbic acid, isonicotinic acid, citric acid, adipic acid, and other acids known to the person skilled in the art.
• the invention also includes, in addition to the salt forms mentioned, inner salts or betaines (zwitterions).
• inner salts or betaines can be obtained by customary methods which are known to a person skilled in the art, for example by contacting these with an organic or inorganic acid or base in a solvent or dispersant, or by anion exchange or cation exchange with other salts.
• the present invention also includes all salts of the compounds of the present invention which, owing to low physiological compatibility, are not directly suitable for use in pharmaceuticals but which can be used, for example, as intermediates for chemical reactions or for the preparation of pharmaceutically acceptable salts.
• solvate formed is a hydrate, e.g. a mono- or dihydrate.
• solvent is alcohol
• the solvate formed is an alcoholate, e.g., a methanolate or ethanolate.
• solvent is an ether
• the solvate formed is an etherate, e.g., diethyl etherate.
• prodrugs of the compounds, or stereoisomers or tautomers of these prodrugs c) pharmaceutically acceptable salts of the compounds and of the items mentioned under (a) and (b), d) pharmaceutically acceptable solvates of the compounds and of the items mentioned under (a), (b) and (c).
• the present invention relates to pharmaceutical compositions comprising a compound of the present invention, or its stereoisomers or tautomers, or
• “Pharmaceutical composition” means one or more active ingredients, and one or more inert ingredients that make up the carrier, as well as any product which results, directly or indirectly, from combination, complexation or aggregation of any two or more of the ingredients, or from dissociation of one or more of the ingredients, or from other types of reactions or interactions of one or more of the ingredients. Accordingly, the
• compositions of the present invention encompass any composition made by admixing a compound of the present invention and a pharmaceutically acceptable carrier.
• a pharmaceutical composition of the present invention may additionally comprise one or more other compounds as active ingredients, such as one or more additional compounds of the present invention, or other Wnt pathway inhibitors.
• said compounds and pharmaceutical composition are for the treatment of cancer such as brain, lung, colon, epidermoid, squamous cell, bladder, gastric, pancreatic, breast, head & neck, renal, kidney, liver, ovarian, prostate, uterine, 6 oesophageal, testicular, gynecological, thyroid cancer, melanoma, as well as
• the cancer to be treated is chosen from colon, lung, breast and hematological tumor types.
• said compounds and pharmaceutical composition are for the treatment of inflammatory diseases such as multiple sclerosis, rheumatoid arthritis, systemic lupus, inflammatory bowel diseases or degenerative diseases such as osteoarthritis and
• This invention also relates to a compound or pharmaceutical composition for inhibiting abnormal cell growth in a mammal which comprises an amount of a compound of the present invention, in combination with an amount of another anti-cancer therapeutic, wherein the amounts of the compound, and of the other anti-cancer therapeutic are together effective in inhibiting abnormal cell growth.
• a compound or pharmaceutical composition for inhibiting abnormal cell growth in a mammal which comprises an amount of a compound of the present invention, in combination with an amount of another anti-cancer therapeutic, wherein the amounts of the compound, and of the other anti-cancer therapeutic are together effective in inhibiting abnormal cell growth.
• Many anti-cancer therapeutics are presently known in the art.
• the anti-cancer therapeutic is selected from the following groups of agents:
• Alkylating agents such as altretamine, bendamustine, busulfan, carmustine, chlorambucil, chlormethine, cyclophosphamide, dacarbazine, ifosfamide, improsulfan, tosilate, lomustine, melphalan, mitobronitol, mitolactol, nimustine, ranimustine, temozolomide, thiotepa, treosulfan, mechloretamine, carboquone;_apaziquone, fotemustine, glufosfamide, palifosfamide, pipobroman, trofosfamide, uramustine, TH-302, VAL-083.
• Platinum Compounds such as carboplatin, cisplatin, eptaplatin, miriplatine hydrate, oxaliplatin, lobaplatin, nedaplatin, picoplatin, satraplatin; lobaplatin, nedaplatin, picoplatin, satraplatin.
• DNA altering agents such as amrubicin, bisantrene, decitabine, mitoxantrone, procarbazine, trabectedin, clofarabine; amsacrine, brostallicin, pixantrone, laromustine.
• Topoisomerase Inhibitors such as etoposide, irinotecan, razoxane, sobuzoxane, teniposide, topotecan;_amonafide, belotecan, elliptinium acetate, voreloxin.
• Microtubule modifiers such as cabazitaxel, docetaxel, eribulin, ixabepilone, paclitaxel, vinblastine, vincristine, vinorelbine, vindesine, vinflunine; fosbretabulin, tesetaxel.
• Antimetabolites such as asparaginase, azacitidine, calcium levofolinate, capecitabine, cladribine, cytarabine, enocitabine, floxuridine, fludarabine, fluorouracil, gemcitabine, mercaptopurine, methotrexate, nelarabine, pemetrexed, pralatrexate, azathioprine, EP2013/002966 thioguanine, carmofur; doxifluridine, elacytarabine, raltitrexed, sapacitabine, tegafur, trimetrexate;
• Anticancer antibiotics such as bleomycin, dactinomycin, doxorubicin, epirubicin, idarubicin, levamisole, miltefosine, mitomycin C, romidepsin, streptozocin, valrubicin, zinostatin, zorubicin, daunurobicin, plicamycin; aclarubicin, peplomycin, pirarubicin.
• Anticancer antibiotics such as bleomycin, dactinomycin, doxorubicin, epirubicin, idarubicin, levamisole, miltefosine, mitomycin C, romidepsin, streptozocin, valrubicin, zinostatin, zorubicin, daunurobicin, plicamycin; aclarubicin, peplomycin, pirarubicin.
• Hormones/Antagonists such as abarelix, abiraterone, bicalutamide, buserelin, calusterone, chlorotrianisene, degarelix, dexamethasone, estradiol, fluocortolone
• Aromatase inhibitors such as aminoglutethimide, anastrozole, exemestane, fadrozole, letrozole, testolactone; formestane.
• Small molecule kinase inhibitors such as crizotinib, dasatinib, erlotinib, imatinib, lapatinib, nilotinib, pazopanib, regorafenib, ruxolitinib, sorafenib, sunitinib, vandetanib, vemurafenib, bosutinib, gefitinib, axitinib; afatinib, alisertib, dabrafenib, dacomitinib, dinaciclib, dovitinib, enzastaurin, nintedanib, lenvatinib, linifanib, linsitinib, masitinib, midostaurin, motesanib, neratinib, orantinib, perifosine, ponatinib, radotinib, rigo
• Photosensitizers such as methoxsalen; porfimer sodium, talaporfin, temoporfin;
• Antibodies such as alemtuzumab, besilesomab, brentuximab vedotin, cetuximab,
• Cytokines such as aldesleukin, interferon alfa 2 , interferon alfa2a 3 , interferon alfa2b;
• Drug Conjugates such as denileukin diftitox, ibritumomab tiuxetan, iobenguane 1123, prednimustine, trastuzumab emtansine, estramustine, gemtuzumab, ozogamicin, aflibercept; cintredekin besudotox, edotreotide, inotuzumab ozogamicin, naptumomab estafenatox, oportuzumab monatox, technetium (99mTc) arcitumomab, vintafolide.
• P2013/002966 cintredekin besudotox, edotreotide, inotuzumab ozogamicin, naptumomab estafenatox, oportuzumab monatox, technetium (99
• Vaccines such as sipuleucel; vitespen, emepepimut-S, oncoVAX, rindopepimut 3 , troVax, MGN-1601 , MGN-1703.
• This invention further relates to a method for inhibiting abnormal cell growth in a mammal or treating a hyperproliferative disorder that comprises administering to the mammal an amount of a compound of the present invention or pharmaceutical composition, in
• composition is in combination with the radiation therapy effective in inhibiting abnormal cell growth or treating the hyperproliferative disorder in the mammal.
• Techniques for administering radiation therapy are known in the art, and these
• this invention further relates to a method for sensitizing abnormal cells in a mammal to treatment with radiation which comprises administering to the mammal an amount of a compound of the present invention or pharmaceutical composition, which amount is effective in sensitizing abnormal cells to treatment with radiation.
• the amount of the compound in this method can be determined according to the means for
• the compounds of the present invention can be combined as the active ingredient in intimate admixture with a pharmaceutical carrier according to conventional pharmaceutical compounding techniques.
• the carrier may take a wide variety of forms T EP2013/002966 depending on the form of preparation desired for administration, e.g., oral or parenteral (including intravenous).
• any of the usual pharmaceutical media may be employed, such as, for example, water, glycols, oils, alcohols, flavoring agents, preservatives, coloring agents and the like.
• any of the usual pharmaceutical media may be employed, such as, for example, suspensions, elixirs and solutions; or carriers such as starches, sugars, microcrystalline cellulose, diluents, granulating agents, lubricants, binders, disintegrating agents and the like.
• the composition may take forms such as, for example, powders, hard and soft capsules and tablets, with the solid oral preparations being preferred over the liquid preparations.
• tablets and capsules represent the most advantageous oral dosage unit form in which case solid pharmaceutical carriers are obviously employed. If desired, tablets may be coated by standard aqueous or nonaqueous techniques. Such compositions and preparations should contain at least 0.1 percent of active compound. The percentage of active compound in these compositions may, of course, be varied and may conveniently be between about 2 percent to about 60 percent of the weight of the unit. The amount of active compound in such therapeutically useful compositions is such that an effective dosage will be obtained.
• the active compounds can also be administered intranasally as, for example, liquid drops or spray.
• the tablets, pills, capsules, and the like may also contain a binder such as gum
• tragacanth acacia, corn starch or gelatin
• excipients such as dicalcium phosphate
• a disintegrating agent such as corn starch, potato starch, alginic acid
• a lubricant such as magnesium stearate
• a sweetening agent such as sucrose, lactose or saccharin.
• a dosage unit form is a capsule, it may contain, in addition to materials of the above type, a liquid carrier such as a fatty oil.
• tablets may be coated with shellac, sugar or both.
• a syrup or elixir may contain, in addition to the active ingredient, sucrose as a sweetening agent, methyl and propylparabens as preservatives, a dye and a flavoring such as cherry or orange flavor. 2013/002966
• Compounds of the present invention may also be administered parenterally. Solutions or suspensions of these active compounds can be prepared in water suitably mixed with a surfactant such as hydroxy-propylcellulose. Dispersions can also be prepared in glycerol, liquid polyethylene glycols and mixtures thereof in oils. Under ordinary conditions of storage and use, these preparations contain a preservative to prevent the growth of microorganisms.
• the pharmaceutical forms suitable for injectable use include sterile aqueous solutions or dispersions and sterile powders for the extemporaneous preparation of sterile injectable solutions or dispersions.
• the form must be sterile and must be fluid to the extent that easy syringability exists. It must be stable under the conditions of
• the carrier can be a solvent or dispersion medium containing, for example, water, ethanol, polyol (e.g., glycerol, propylene glycol and liquid polyethylene glycol), suitable mixtures thereof, and vegetable oils.
• Any suitable route of administration may be employed for providing a mammal, especially a human, with an effective dose of a compound of the present invention.
• oral, rectal, topical, parenteral, ocular, pulmonary, nasal, and the like may be employed.
• Dosage forms include tablets, troches, dispersions, suspensions, solutions, capsules, creams, ointments, aerosols, and the like.
• compounds of the present invention are administered orally.
• the effective dosage of active ingredient employed may vary depending on the particular compound employed, the mode of administration, the condition being treated and the severity of the condition being treated. Such dosage may be ascertained readily by a person skilled in the art.
• the compounds of the present invention are administered at a daily dosage of from about 0.01 milligram to about 100 milligram per kilogram of body weight, preferably given as a single daily dose.
• the total daily dosage is from about 0.1 milligrams to about 1000 milligrams, preferably from about 0.2 milligram to about 50 milligrams.
• the total daily dose will 02966 generally be from about 0.2 milligrams to about 200 milligrams. This dosage regimen may be adjusted to provide the optimal therapeutic response.
• the invention also relates to a set (kit) consisting of separate packs of
• the set comprises suitable containers, such as boxes, individual bottles, bags or ampoules.
• the set may comprise separate ampoules, each containing an effective amount of a compound according to the invention, and an effective amount of a further medicament active ingredient in dissolved or lyophilised form.
• the instant compounds are generally isolated in the form of their pharmaceutically acceptable salts, such as those described above.
• the amine-free bases corresponding to the isolated salts can be generated by neutralization with a suitable base, such as aqueous sodium hydrogencarbonate, sodium carbonate, sodium hydroxide and potassium hydroxide, and extraction of the liberated amine-free base into an organic solvent, followed by evaporation.
• a suitable base such as aqueous sodium hydrogencarbonate, sodium carbonate, sodium hydroxide and potassium hydroxide
• the amine-free base, isolated in this manner can be further converted into another pharmaceutically acceptable salt by dissolution in an organic solvent, followed by addition of the appropriate acid and subsequent evaporation, precipitation or crystallization.
• the present invention relates also to a process for the manufacture of compounds of Formula (I), wherein a compound of Formula (V)
• LG 1 is a leaving group typically used in nucleophilic aromatic substitutions, preferably Hal, such as F, CI or Br.
• LG 2 is a reactive group capable of reacting in metal-catalyst reactions (e.g. Suzuki reaction), such as CI, Br or I.
• X is H, or a typical amine protecting group such as BOC, which is cleaved off under the reaction conditions.
• Y is a boronic acid or a boronic ester.
• Solvent A water + 0.1 % trifluoroacetic acid
• Solvent B acetonitrile + 0.1 % trifluoroacetic acid
• Solvent A water + 0.1 % formic acid
• Solvent B methanol + 0.1 % formic acid
• Solvent A water + 0.1 % formic acid
• Solvent B methanol + 0.1 % formic acid
• Solvent A water + 0.05% formic acid
• Solvent B acetonitrile + 0.04% formic acid Flow: 2 mL/min, wave length: 220nm
• Example compounds according to Formula (I), and synthetic intermediates thereof are provided.
• the reaction mixture was heated in the microwave at 220 °C for 2 2966 hr, cooled and then ethyl acetate and water were added and the organic layer was separated. The aqueous layer was extracted twice with ethyl acetate. The combined organic layers were dried over MgS0 4 , filtered and the solvent was evaporated under reduced pressure. The resulting precipitate was purified by chromatography on silica gel (dichloromethane/ethanol) to give the title compound as a white solid containing 5% of NMP (260 mg, 60%).
• Acetonitrile (0.77 mL) and aqueous sodium carbonate (0.5M, 0.23 mL, 0.1 17 mmol) were added and the mixture was degassed using high vacuum and purged with nitrogen three times.
• the mixture was heated in the microwave at 120 °C for 1 h before it was cooled and transferred into a flask with the help of chloroform/methanol and the water was evaporated by azeotropic removal with toluene twice.
• the resulting residue was purified by chromatography on silica gel (dichloromethane/ethanol) followed by further purification by using a SCX 2 - cartridge (eluting with dichloromethane/1 N NH 3 in methanol).
• the 2-amino function of the pyridine can also be protected as the bis(4-methoxybenzyl) derivative instead of the 2,5-dimethyl-pyrrolo derivative.
• the reaction mixture was heated in the microwave at 220 °C for 2 h and cooled, then ethyl acetate and water were added and the organic layer was separated. The aqueous layer was extracted twice with ethyl acetate. The combined organic layers were dried over MgS0 4 , filtered and the solvent was evaporated under reduced pressure. The residue was purified by
• Acetonitrile (0.8 mL) and aqueous sodium carbonate (0.5M, 0.308 mL, 0.154 mmol) were added and the mixture was degassed again by using the high vacuum and purged with nitrogen again (each three times). The mixture was heated in the microwave at 120 °C for 1 h before it was cooled and transferred into a flask with the help of
• Acetonitrile (0.5 mL) and aqueous sodium carbonate (0.5M, 0.137 mL, 0.069 mmol) were added and the mixture was degassed again by using the high vacuum and purged with nitrogen again (each three times).
• the mixture was heated in the microwave at 120 °C for 1 h before it was transferred into a flask with the help of chloroform/methanol and the water was evaporated by azeotropic removal with toluene twice.
• the resulting residue was purified by chromatography on silica gel
• Acetonitrile (0.6 mL) and aqueous sodium carbonate (0.5M, 0.151 mL, 0.076 mmol) were added and the mixture was degassed again by using the high vacuum and purged with nitrogen again (each three times).
• the mixture was heated in the microwave at 120 °C for 1 h before it was transferred into a flask with the help of chloroform/methanol and the water was
• Butyl lithium (1.6 M in hexanes, 0.766 mL, 1 .23 mmol) was added to diisopropylamine (0.189 mL, 1.34 mmol) in THF (3.5 mL) at -78 °C under nitrogen atmosphere. After 30 min tert-butyl 5-bromo-3-(trifluoromethyl)pyridin-2-ylcarbamate (190 mg, 0.557 mmol) in THF ( .5 mL) was added dropwise resulting in a dark yellow solution. After 1 h, hexachloroethane (343 mg, 1.448 mmol) in THF (1 mL) was added dropwise to the yellow brown suspension, resulting in a dark brown solution.
• Pd(dppf)CI 2 CH 2 CI 2 (6.47 mg, 7.92 prnol) were loaded in a microwave vial which was sealed and flushed with nitrogen, acetonitrile (1 mL) and aq. sodium carbonate (0.5 M, 0.437 mL, 0.219 mmol) were added and the vial was capped and heated in the microwave at 120 °C for 1 h. The solvent was evaporated and the product was purified by flash chromatography ("1 M NH 3 in MeOH" in DCM). A small amount of impurity co- eluted with the product and was subsequently removed by recrystalization from hot EtOAc to give the title compound (20.0 mg, 31 %) as a white solid.
• tetrakis(triphenylphosphine) palladium(O) (6.40 mg, 5.56 pmol) were loaded in a microwave vial and then degassed acetonitrile (2 mL) and degassed 0.5 M aqueous sodium carbonate (310 ⁇ , 0.156 mmol) were added. The reaction was heated at 120°C under microwave irradiation for 60 min. Then, the reaction mixture was concentrated and purified by column chromatography (DCM/EtOH) to afford the title compound as a white solid (22 mg, 43%).
• reaction mixture was diluted with ethyl acetate, filtered and evaporated.
• the dark brown residue was purified by flash chromatography (dichloromethane/methanole) to yield in 2.35 g (94% purity, 5.55 mmol, 67%) of a yellow, viscous oil.
• the THP-protecting group was cleaved off at the conditions used to deprotect the function of the pyridine applying TFA as described in 3f.
• 6-Bromo-1 H-indazol-3-amine 500 mg, 2.36 mmol was dissolved in THF (10 mL).
• the reaction mixture was poured into 100 ml of water.
• the mixture was extracted twice with ethyl acetate.
• the organic layer was washed with water, dried, filtered and evaporated to dryness to yield in 1 .42 g (73% purity, 2.02 mmol, 86%) of a brown oil.
• ferf-Butyl 3-[bis(rerr-butoxycarbonyl)amino]-6-bromo-indazole-1-carboxylate (86 %, 1.14 g, 1.91 mmol) was dissolved in tetrahydrofuran (16 mL).
• Bis(pinacolato)diboron (486 mg, 1.91 mmol) and potassium acetate (375 mg, 3.83 mmol) were added.
• the mixture was degassed, (1 ,1'-bis(diphenylphosphino)ferrocene)-palladium dichloride dichloromethane complex (78.1 mg, 0.096 mmol) was added and the mixture was stirred under nitrogen atmosphere at 70°C overnight.
• the reaction mixture was heated in the microwave at 220 °C for 2 h.
• the dark brown solution was diluted with water and EtOAc and the organic layer was separated.
• the aqueous layer was extracted twice with EtOAc.
• the combined organic layers were washed with water, dried over MgS0 4 , filtered and the solvent was evaporated under reduced pressure.
• the resulting brown oil was purified by chromatography on silica gel (CH 2 CI 2 /EtOH) to give the product (380 mg, 55%) as a white solid.
• the reaction was heated at 120 °C under microwave irradiation for 60 min. Then, the reaction mixture was concentrated under reduced pressure and purified by column chromatography (DCM/EtOH). The obtained solid was triturated with hot EtOAc and filtered off. The solid was then dissolved in a mixture of DCM and eOH and filtered on SCX-2 column. The product was released with 1 M ammonia in MeOH to afford the title compound as a white solid (29.0 mg, 50%).
• the closed vial was evacuated and flushed 3 times with nitrogen and agitated in the microwave oven (Emrys Optimizer) at 120°C for 1 h.
• the reaction mixture was treated with ethyl acetate, filtered and evaporated.
• HPLC/MS showed the desired product mass and the mass of the mono-protected PMB product but also starting material.
• the mixture was heated for further 8 h at 220 °C in the microwave oven: no starting material was detected, only the mass of the mono-PMB product.
• the solvent was evaporated, the residue was dissolved in ethyl acetate and the organic layer was washed three times with water, then with brine, dried with sodium sulfate and the solvent was evaporated.
• the crude product was purified by flash chromatography to give 205 mg (13%) of the title compound as an off-white solid.
• a vessel for microwave synthesis was charged with racemic trans-5'-bromo-3'-chloro-3- hydroxy-2'-(4-methoxy-benzylamino)-3,4,5,6-tetrahydro-2/-/-[1 ,4']bipyridinyl-4-carbonitrile (100 mg, 0.133 mmol), 1-methyl-5-(4,4,5,5-tetramethyl-[1 ,3,2]dioxaborolan-2-yl)-1 ,3- dihydro-benzo[c]isothiazole 2,2-dioxide (50.3 mg, 0.159 mmol), potassium carbonate (36.7 mg, 0.266 mmol) and Pd(dppf)CI 2 CH 2 CI 2 (5.42 mg, 0.007 mmol) and then acetonitrile (5 mL) and water (2 mL) were added.
• IC 50 -values were determined, as shown in Table 1 below. Also shown is the human hepatic microsomal intrinsic clearance (CLint), whereby the following classification is used:
• This assay is based on an in-vitro luciferase activity readout.
• the human colon cancer cell line, LS174T was transduced with a lentivirus encoding a short half-life luciferase (with a destabilised PEST sequence construct; construct F1756): 16 x TCF/LEF transcription sites - short half life firefly luciferase on a basal pTA promoter - puromycin resistance gene on an EF-1 - ⁇ promoter).
• This construct was made using the lentiviral base vector: pCDF1 -MCS2-EF1 -Puro from System Biosciences (cat. # CD1 10B-1 ).
• the luciferase has a T 1 2 of about 60 minutes.
• Stable luciferase-expressing clones were selected, using 1 pg/mL puromycin selection and the clones were bulked up. Clone 5 was selected for routine use because it had a good signal to background ratio and was responsive to test reference compounds.
• the luciferase readout is analysed as a reporter of TCF-regulated transcription and hence Wnt signalling activation.
• Compounds that inhibit the Wnt pathway are predicted to inhibit the induction of luciferase transcription by TCF; this will result in reduced luciferase protein production and luciferase signal readout.
• Luciferase activities were determined using the Steady Glo Luciferase Assay System (Promega) and the TOPCOUNT microplate reader (Perkin Elmer).
• a Tecan Genesis workstation (RWS ASY 150/8) was used to perform the microsomal incubations. Analysis was carried out using a Waters ACQUITY UPLC system coupled to an ABSciex API3000 mass spectrometer. Data analysis was performed using Assay Explorer (Symyx). 02966
• Each experiment consists of 12 test and 2 reference compounds.
• the reference compounds are incubated as a cocktail.
• Dilution of test compounds was done in 2 steps from a 10 mM DMSO stock solution.
• First 4 ⁇ _ stock solution was added to 196 ⁇ _ of 20% DMSO in potassium phosphate buffer pH 7.4.
• 10 ⁇ _ of the first dilution were added to 1890 ⁇ _ potassium phosphate buffer and 100 ⁇ internal standard solution to a final concentration of 0.8 ⁇ .
• 100 ⁇ _ of the final compound dilution were aliquoted into a 96 deep well plate. 12.5 ⁇ _ liver microsomes were added to each well (0.5 mg/mL final protein concentration) and the samples preincubated for 5 min at 37 °C and 800 rpm agitation.
• the incubations were stopped after 5, 10, 20 and 30 min by adding 250 ⁇ _ cold acetonitrile to the individual wells.
• the quenched samples were then centrifuged at 4000g for 1 h at 4 °C. 100 ⁇ _ of the supernatant were transferred into 96 well plates for analysis.
• the invention also relates to the following compounds which can be made and tested according to the methods described above:

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