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EP2265598A2 - Nouveaux derives de carbazole inhibiteurs d' hsp90, compositions les contenant et utilisation - Google Patents

Nouveaux derives de carbazole inhibiteurs d' hsp90, compositions les contenant et utilisation

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Publication number
EP2265598A2
EP2265598A2 EP09728587A EP09728587A EP2265598A2 EP 2265598 A2 EP2265598 A2 EP 2265598A2 EP 09728587 A EP09728587 A EP 09728587A EP 09728587 A EP09728587 A EP 09728587A EP 2265598 A2 EP2265598 A2 EP 2265598A2
Authority
EP
European Patent Office
Prior art keywords
products
formula
alkyl
carbazol
fluoro
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09728587A
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German (de)
English (en)
French (fr)
Inventor
Marcel Alasia
Luc Bertin
Victor Certal
Frank Halley
Patrick Mailliet
Maria Mendez Perez
Hervé MINOUX
Jean-Marie Ruxer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanofi Aventis France
Original Assignee
Sanofi Aventis France
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Application filed by Sanofi Aventis France filed Critical Sanofi Aventis France
Publication of EP2265598A2 publication Critical patent/EP2265598A2/fr
Withdrawn legal-status Critical Current

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    • 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
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    • C07D451/00—Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof
    • C07D451/02—Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof containing not further condensed 8-azabicyclo [3.2.1] octane or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane; Cyclic acetals thereof
    • C07D451/04—Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof containing not further condensed 8-azabicyclo [3.2.1] octane or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane; Cyclic acetals thereof with hetero atoms directly attached in position 3 of the 8-azabicyclo [3.2.1] octane or in position 7 of the 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring system
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    • 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
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    • C07D493/08—Bridged systems

Definitions

  • the present invention relates to novel chemical compounds, heterocyclic carbazole derivatives, compositions containing them, and their use as medicaments.
  • the invention relates, according to a first aspect, to novel heterocyclic carbazole derivatives exhibiting anticancer activity, and in particular to an inhibitory activity of the Hsp90 chaperone protein, and more particularly via the inhibition of the catalytic activity of the type. ATPase of the chaperone protein Hsp90.
  • HSPs Heat Shock Proteins
  • Hsp27, Hsp70, Hsp90 The molecular chaperones of the "Heat Shock Proteins” (HSPs) family, classified according to their molecular mass (Hsp27, Hsp70, Hsp90 ).
  • HSPs Heat Shock Proteins
  • Hsp90 are key elements of the balance between the synthesis and the degradation of cellular proteins. , responsible for the correct folding of proteins. They play a vital role in response to cellular stress.
  • HSPs, and in particular Hsp90 are also involved in the regulation of various major functions of the cell, via their association with various client proteins involved in cell proliferation or apoptosis (JoIIy C. and Morimoto RI, JN Cancer Inst. (2000), 92, 1564-72, Smith DF et al., Pharmacological Rev. (1998), 50, 493-513, Smith DF, Molecular Chaperones in the CeII, 165-178,
  • Hsp90 and Hsp90 Inhibitors for the Treatment of Cancers The Hsp90 chaperone, which accounts for 1-2% of the protein content of the cell, has recently been identified as a particularly promising target in anticancer therapy (see review for Moloney A and Workman P., Expert Opin Biol Ther (2002), 2 (1), 3-24, Chiosis et al, Drug Discovery Today (2004), 9, 881-888). This interest is particularly related to the cytoplasmic interactions of Hsp90 with the main Hsp90 client proteins, which are involved in the six tumor progression, as defined by Hanahan D. and Weinberg RA (CeII (2002), 100, 57-70), namely:
  • VEGF-R an ability to activate angiogenesis: VEGF-R, FAK, HIF-1, Akt ...
  • Hsp90 steroid hormone receptors, such as the estrogen receptor or the androgen receptor, are also of great interest in the context of anticancer therapies. It has been recently shown that the alpha form of Hsp0O also has an extracellular role via its interaction with the metalloprotease MMP-2, itself involved in tumor invasion (Eustace BK et al., Nature CeII Biology (2004), 6). , 507-514). Hsp90 consists of two N- and C-terminal domains separated by a highly charged region. The dynamic interaction between these two domains, coordinated by the fixation of nucleotides and co-chaperones, determines the conformation of the chaperone and its activation state.
  • the association of client proteins mainly depends on the nature of the co-chaperones Hsp70 / Hsp40, Hop ⁇ O etc ... and the nature of the ADP or ATP nucleotide linked to the N-terminal domain of Hsp90.
  • the hydrolysis of ATP to ADP and the ADP / ATP exchange factor control all of the chaperone "machinery", and it has been shown that it is sufficient to prevent the hydrolysis of ATP to ADP.
  • Alzheimer's Disease and Multiple Sclerosis These diseases are due in part to the expression of pro-inflammatory cytokines and the inducible form of NOS (Nitric oxide synthase) in the brain, and this expression is suppressed by the answer to stress.
  • NOS Nitric oxide synthase
  • the Hsp90 inhibitors are capable of garnering this stress response, and it has been shown in vitro that geldanamycin and 17-AAG exhibit anti-inflammatory activity in brain glial cells (J. Neuroscience Res. : 461, 2002).
  • Amyotrophic lateral sclerosis This neurodegenerative disease is due to the progressive loss of motor neurons.
  • Arimoclomol an inducer of heat-shock proteins, has been shown to delay the course of disease in an animal model (Nature Medicine 10: 402, 2004). Since an Hsp0O inhibitor is also an inducer of heat-shock proteins (Mol., Cell Biol., 19: 8033, 1999; Mol. CeII Biol. 18: 4949;
  • Hsp90 protein could potentially be useful in various diseases, other than the cancer mentioned above, such as parasitic, viral, fungal, or neurodegenerative diseases, by direct action on Hsp90 and special customers.
  • diseases other than the cancer mentioned above, such as parasitic, viral, fungal, or neurodegenerative diseases, by direct action on Hsp90 and special customers.
  • Some examples are presented below: vi) malaria: Plasmodium falciparum Hsp90 protein
  • Toxoplasmosis Toxoplasma gondii, the parasite responsible for toxoplasmosis, has a chaperone protein Hsp90, for which induction has been shown during tachyzoite conversion. bradyzoite, corresponding to transition from chronic infection to active toxoplasmosis.
  • geldanamycin blocks in vitro this tachyzoite-bradyzoite conversion (J.
  • Hsp90 protein potentiates the evolution of drug resistance. , allowing new mutations to develop. Therefore, an Hsp90 inhibitor, alone or in combination with other antifungal therapy, may be useful in the treatment of some resistant strains (Science 309: 2185;
  • Hepatitis B Hsp90 is one of the host proteins that interacts with hepatitis B virus reverse transcriptase during the replication cycle of the virus.
  • Hsp90 The first known inhibitors of Hsp90 are compounds of the amsamycin family, in particular Geldanamycin (1) and Herbimycin A. X-ray studies have shown that Geldanamycin binds to the ATP site of the N-terminal domain. Hsp90 where it inhibits the ATPase activity of chaperone (Prodromou C. et al, CeII (1997), 90, 65-75)
  • 17-AAG (2) an Hsp90 inhibitor derived from geldanamycin (1), which blocks the ATPase activity of Hsp0O by binding to the recognition site. N-terminal of the ATP.
  • the results of Phase I clinical trials of 17-AAG (1) now lead to the initiation of phase II trials, but also direct research to more soluble derivatives such as Kosan BioSciences analogue 3 (17-DMAG). ), carrying a dimethylamine chain in place of the methoxy residue, and to optimized formulations of 17AAG (CNF1010 from Conforma Therapeutics):
  • Radicicol (4) is also a naturally occurring Hsp90 inhibitor (Roe S.M. et al., J. Med Chem (1999), 42, 260-66). However, if it is by far the best in vitro inhibitor of Hsp90, its metabolic instability towards sulfur nucleophiles makes it difficult to use in vivo. Oxim derivatives much more stable such as KF 55823 (5) or KF 25706 were developed by Kyowa Hakko Kogyo (Soga et al, Cancer Research (1999), 59, 2931-2938)
  • US2006089495 discloses mixed compounds comprising a quinone ring, such as amsamycin derivatives, and a resorcinol ring such as radicicol analogs, as Hsp90 inhibitors.
  • novobiocin 10-10 binds to a different ATP site located in the C-terminal domain of the protein (Itoh H. et al, Biochem J. (1999), 343, 697- 703. Recently, simplified analogues of Novobiocine have been identified as more potent inhibitors of Hsp90 than Novobiocin itself (J. Amer Chem Soc (2005), 127 (37)).
  • Patent applications WO2006050501 and US2007270452 claim Novobiocine analogs as Hsp90 inhibitors.
  • Patent application WO2007117466 claims Célastrol and Gédunine derivatives as HspOO inhibitors.
  • a depsipeptide named Pipalamycin or IC1101 has also been described as a noncompetitive inhibitor of the ATP site of Hsp90 (J. Pharmacol Exp Ther (2004), 310, 1288-1295).
  • Sherperdine a KHSSGCAFL nonapeptide, mimics a portion of the Survivin sequence K79-K90 (KHSSGCAFLSVK) and blocks the interaction of the IAP family proteins with Hsp90 in vitro (WO2006014744).
  • Small peptides including an Otoferline type sequence (YSLPGYMVKKLLGA), have recently been described as Hsp90 inhibitors (WO2005072766).
  • Purines such as PU3 compounds (11) (Chiosis et al., Chem Biol. (2001), 8, 289-299) and PU24FCI (12) (Chiosis et al., Curr Cane Drug
  • a purine derivative CNF2024 (13) was recently introduced clinically by the company Conforma therapeutics, in collaboration with the Sloan Kettering Memorial Institute for Cancer Research (WO2006084030).
  • Patent application FR2880540 claims another family of Hsp90 inhibitory purines.
  • Patent application WO2004072080 (Cellular Genomics) claims a family of 8-heteroaryl-6-phenylimidazo [1,2-a] pyrazines as modulators of the activity of hsp0O.
  • Patent application WO2004028434 (Conforma Therapeutics) claims aminopurines, aminopyrrolopyrimidines, aminopyrazolopyrimidines and aminotriazolopyrimidines as Hsp90 inhibitors.
  • the patent application WO2004050087 (Ribotarget / Vemalis) claims a family of pyrazoles useful for treating pathologies related to the inhibition of "Heat Shock Proteins" such as chaperone Hsp90.
  • Patent application WO200407051 claims arylisoxazole derivatives that are useful for treating pathologies related to the inhibition of "Heat Shock Proteins” such as the Hsp90 chaperone.
  • Patent application WO2004096212 claims a third family of pyrazoles useful for treating pathologies related to the inhibition of "Heat Shock Proteins” such as the Hsp90 chaperone.
  • Patent application JP2005225787 claims another family of pyrazoles as Hsp90 inhibitors.
  • Patent application WO200500778 claims a family of benzophenone derivatives as Hsp90 inhibitors, useful for the treatment of tumors.
  • Patent application WO200506322 (Kyowa Hakko Kogyo) claims a family of resorcinol derivatives as Hsp90 inhibitors.
  • Patent application WO2005051808 claims a family of resorcinyl-benzoic acid derivatives as Hsp90 inhibitors.
  • WO200608503 WO2006079789 and WO2006090094 (Vernalis) claim families of pyrimidothiophenes or pyridothiophenes, useful for treating pathologies related to the inhibition of "Heat Shock Proteins" such as chaperone Hsp90.
  • WO2006018082 (Merck) claims another family of pyrazoles as Hsp90 inhibitors.
  • WO2006010595 claims a family of indazoles as HspOO inhibitors.
  • WO2006010594 claims a family of dihydrobenzimidazolones as Hsp90 inhibitors.
  • Patent application WO2006055760 claims a family of diaryl-triazoles as Hsp90 inhibitors.
  • Patent application WO2006087077 claims a family of (s-triazol-3-yl) phenols as Hsp90 inhibitors.
  • Patent application WO2006091963 claims families of tetrahydroindolones and tetrahydroindazolone as Hsp90 inhibitors.
  • Patent application WO2006095783 (Nippon Kayaku) claims a family of triazoles as Hsp90 inhibitors.
  • Patent application WO2006101052 (Nippon Kayaku) claims a family of acetylenic derivatives as Hsp90 inhibitors.
  • Patent application WO2006105372 (Conforma Therapeutics) claims a family of alkynyl pyrrolo [2,3-d] pyrimidines as Hsp90 inhibitors.
  • Patent Application FR2884252 (Aventis) claims a family of isoindoles as Hsp90 inhibitors
  • Patent application WO20061009075 (Astex Therapeutics) claims a family of benzamides as Hsp90 inhibitors.
  • Patent application WO2006109085 (Astex Therapeutics) claims a family of hydroxybenzamides as Hsp90 inhibitors.
  • Patent application WO2006113498 (Chiron) claims a family of 2-aminoquinazolin-5-ones as Hsp90 inhibitors.
  • Patent application JP200606755 (Nippon Kayaku) claims a family of pyrazoles as Hsp90 inhibitors.
  • Patent application WO2006117669 (Pfizer) claims a family of hydroxyarylcarboxamides as Hsp90 inhibitors.
  • Patent Applications WO2006122631 and DE102006008890 (Merck
  • Patent application WO2006123061 claims a family of azabenzimidazolyl- or benzimidazolyl-fluorenes derivatives as Hsp90 inhibitors.
  • Patent application WO2006123065 (Astex Therapeutics) claims a family of azinamines (amino-2-pyrimidines or triazines) as Hsp90 inhibitors.
  • Patent application WO2006125531 (Merck GmbH) claims a family of thieno [2,3b] pyridines as Hsp90 inhibitors.
  • Patent applications WO2006125813 and WO2006125815 (Altana Pharma) claim a family of tetrahydropyridothiophenes as HspOO inhibitors.
  • Patent application WO2007017069 (Merck GmbH) claims a family of adenine derivatives as HspOO inhibitors.
  • Patent applications WO2007021877 and WO200701966 claim respectively arylpyrazole and arylimidazole families as Hsp90 inhibitors.
  • Patent application WO2007022042 claims a family of pyrimidylaminobenzamides as HspOO inhibitors.
  • Patent application WO2007034185 claims a family of heteroarylpurines as Hsp90 inhibitors.
  • Patent application WO2007041362 claims a family of 2-amino-7,8-dihydro-6H-pyrido [4,3-d] pyrimidin-5-ones as Hsp90 inhibitors.
  • Patent application WO2007104944 (Vernalis) claims a family of pyrrolo [2,3b] pyridines as Hsp90 inhibitors.
  • the patent application US2007105862 claims a family of azole derivatives as Hsp90 inhibitors.
  • Patent application WO2007129062 (Astex Therapeutics) claims a family of diazoles (aryl pyrazoles) as Hsp90 inhibitors.
  • Patent application WO2007155809 (Synta Pharma) claims families of phenyltriazoles as Hsp90 inhibitors.
  • Patent Application WO2007092496 (Conforma Therapeutics) claims a family of 7,9-dihydropurine-8-ones as HspOO inhibitors
  • Patent application WO2007207984 claims a family of cyclohexylaminobenzene derivatives as Hsp90 inhibitors.
  • Patent applications DE10206023336 and DE10206023337 respectively claim families of 1,5-diphenylpyrazoles and 1,5-diphenyltriazoles as Hsp90 inhibitors.
  • Patent application WO2007134298 (Myriad Genetics) claims a family of purinamines as Hsp90 inhibitors.
  • Patent application WO2007138994 claims families of 2-aminopyrimidines or 2-aminotriazines as Hsp90 inhibitors.
  • WO20071400002 (Synta Pharma) claim triazole families as Hsp90 inhibitors and agents for the treatment of non-
  • the present invention relates to carbazole derivatives of formula (I): wherein :
  • Het represents an aromatic or partially unsaturated heterocycle - of dihydro or tetrahydro mono or bicyclic type, of 5 to 11 members, containing from 1 to 4 heteroatoms, chosen from N, O or S, optionally substituted with one or more radicals R 1 or R 1 identical or different as described below,
  • R is selected from the group consisting of
  • R1 and / or R'1 are in the group consisting of H 1 halogen, CF3, nitro, cyano, alkyl, hydroxy, mercapto, amino, alkylamino, dialkylamino, alkoxy, phenylalkoxy, alkylthio, free carboxy or esterified with alkyl, carboxamide, CO-NH (alkyl), CON (alkyl) 2, NH-CO-alkyl, sulfonamide, NH-SO 2 -alkyl, S (O) 2 -NHalkyl, S (O 2) -N ( alkyl) 2, all the alkyl, alkoxy and alkylthio radicals being themselves optionally substituted with one or more identical or different radicals selected from halogen, hydroxy, alkoxy, amino, alkylamino and dialkylamino; W1, W2, W3 independently represent CH or N, X represents the oxygen or sulfur atom, or an NR2, C (O), S
  • Z represents a hydrogen atom or a halogen atom or an -O-R2 radical or an -NH-R2 radical in which R2 represents a hydrogen atom or a C1-C6 alkyl or C3-C8 cycloalkyl radical; or C3-C10 heterocycloalkyl, mono or bicyclic; these alkyl, cycloalkyl and heterocycloalkyl radicals being optionally substituted with one or more identical or different radicals chosen from among the radicals
  • R'3 and R3 are such that one represents a hydrogen atom and the other is selected from the values of R1 and R'1;
  • R 1 and / or R 1 I 1 which are identical or different, are in the group consisting of H, halogen, CF 3, nitro, cyano, alkyl, hydroxy, mercapto, amino, alkylamino, dialkylamino, alkoxy, phenylalkoxy, alkylthio, free carboxy or esterified with an alkyl radical, carboxamide, CO-NH (alkyl), CON (alkyl) 2, NH-CO-alkyl, sulphonamide, NH-SO 2 -alkyl, S (O) 2 -NHalkyl, S (O 2) -N (alkyl ) 2, all the alkyl, alkoxy and alkylthio radicals being themselves optionally substituted by one or more identical or different radicals chosen from halogen, hydroxy, alkoxy, amino, alkylamino and dialkylamino; the substituent R of said products of formula (I) being chosen from the values defined above or below, said products of formula (
  • the present invention thus relates in particular to the products of formula (I) as defined above or below in which Het is chosen from the group consisting of:
  • R'3 and R3 are such that one represents a hydrogen atom and the other is selected from -NH2 radicals; -CN, -CH2-OH, -CF3, -OH, -O-CH2-phenyl, -O-CH3, -CO-NH2;
  • R1 and / or R'1 is in the group consisting of H, halogen, CF3, nitro, cyano, alkyl, hydroxy, mercapto, amino, alkylamino, dialkylamino, alkoxy, alkylthio, carboxy free or esterified with an alkyl radical, carboxamide, CO-NH (alkyl) and CON (alkyl) 2, NH-CO-alkyl, sulfonamide, NH-SO 2 -alkyl, S (O) 2 -NH (alkyl), S (O) 2 -N (alkyl) 2, all the alkyl, alkoxy and alkylthio radicals themselves being optionally substituted with one or more identical or different radicals chosen from halogen, hydroxy, alkoxy, amino, alkylamino and dialkylamino; the substituent R of said products of formula (I) being chosen from the values defined above or below, said products of formula (I) being in all possible tautomeric and is
  • the present invention thus relates in particular to the products of formula (I) as defined above or below in which Het is chosen from the group consisting of:
  • R'3 and R3 are such that one represents a hydrogen atom and the other is selected from -NH2 radicals; -CN, -CH2-OH, -CF3, -OH, -O-CH2-phenyl, -O-CH3, -CO-NH2; R is selected from the group consisting of
  • (A 1 ) (B) with R 1 and / or R '1, identical or different, are in the group consisting of H, halogen, CF 3, nitro, cyano, alkyl, hydroxy, mercapto, amino, alkylamino, dialkylamino, alkoxy, O-CH 2 -phenyl, alkylthio, carboxy free or esterified with an alkyl radical, carboxamide, CO-NH (alkyl), CON (alkyl) 2, NH-CO-alkyl, sulfonamide, NH-SO 2 -alkyl, S (O ) 2-NHalkyl, S (O2) -N (alkyl) 2, all the alkyl, alkoxy and alkylthio radicals themselves being optionally substituted by one or more identical or different radicals chosen from halogen, hydroxy, alkoxy, amino alkylamino and dialkylamino; W1, W2, W3 independently represent CH or N 1
  • X represents the oxygen or sulfur atom, or an NR2, C (O), S (O) or S (O) 2 radical;
  • Z represents a hydrogen atom or a halogen atom or a radical -O-R2 or a radical -NH-R2 in which
  • R2 represents a hydrogen atom or a C1-C6 alkyl, C3-C8 cycloalkyl or C3-C10 heterocycloalkyl radical, mono or bicyclic; these alkyl, cycloalkyl and heterocycloalkyl radicals being optionally substituted with one or more identical or different radicals chosen from among the halogen and hydroxy radicals; mercapto; amino; carboxamide (CONH2); carboxy; heterocycloalkyl such as piperidinyl or; pyrrolidinyl; cycloalkyl; heteroaryl such as furanyl, pyridyl, pyrazolyl, oxazolyl or imidazolyl; carboxy esterified with an alkyl radical; CO-NH (alkyl); -O-CO-alkyl, -NH-CO-alkyl; alkyl; alkoxy; hydroxyalkoxy; alkylthio; alkylamino; dialkylamino; in
  • the present invention relates to carbazole derivatives as defined above or hereafter products of formula (I)
  • Het represents an aromatic or partially unsaturated heterocycle - of dihydro or tetrahydro mono or bicyclic type, of 5 to 11 members, containing from 1 to 4 heteroatoms, chosen from N, O or S, optionally substituted with one or more radicals R 1 or R 1 or the same as described below, R is selected from the group consisting of
  • R1 and / or R'1 are in the group consisting of H, halogen, CF3, nitro, cyano, alkyl, hydroxy, mercapto, amino, alkylamino, dialkylamino, alkoxy, alkylthio, carboxy free or esterified with an alkyl radical, carboxamide, CO-NH (alkyl), CON (alkyl) 2, NH-CO-alkyl, sulfonamide, NH-SO 2 -alkyl, S (O) 2-NHalkyl, S (O 2) -N (alkyl) 2, all alkyl radicals wherein alkoxy and alkylthio are themselves optionally substituted by one or more identical or different radicals selected from halogen, hydroxy, alkoxy, amino, alkylamino and dialkylamino; W1, W2, W3 independently represent CH or N, X represents the oxygen or sulfur atom, or an NR2, C (O), S (O) or S (O) 2 radical.
  • R2 represents a hydrogen atom or a C1-C6 alkyl, C3-C8 cycloalkyl or C3-C10 heterocycloalkyl, mono- or bicyclic radical, these alkyl, cycloalkyl and heterocycloalkyl radicals being optionally substituted with one or more identical or different radicals; selected from the radicals: hydroxy; mercapto; amino; aziridino; azetidino; oxetano; tetrahydrofurano; piperidino; tetrahydropyrano; piperazino; alkylpiperazino; pyrrolidino; morpholino; homopiperidino; homopiperazino; quinuclidino; carboxamide (CONH2); carboxy; carboxy esterified with an alkyl radical; CO-NH (alkyl); -O-
  • halogen denotes fluorine, chlorine, bromine or iodine atoms and preferably fluorine, chlorine or bromine atoms.
  • alkyl radical denotes a linear or branched radical containing at most 12 carbon atoms chosen from methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl and sec-pentyl radicals, tert-pentyl, neo-pentyl, hexyl, isohexyl, sec-hexyl, tert-hexyl and also heptyl, octyl, nonyl, decyl, undecyl and dodecyl, as well as their linear or branched positional isomers.
  • alkyl radicals having at most 6 carbon atoms and in particular methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, terbutyl, linear or branched pentyl or linear or branched hexyl radicals.
  • alkoxy radical denotes a linear or branched radical containing at most 12 carbon atoms and preferably 6 carbon atoms chosen, for example, from methoxy, ethoxy, propoxy, isopropoxy, linear butoxy, secondary or tertiary, pentoxy, hexoxy and heptoxy radicals; as well as their linear or branched positional isomers,
  • alkylthio or alkyl-S- denotes a linear or branched radical containing at most 12 carbon atoms and represents in particular the methylthio, ethylthio, isopropylthio and heptylthio radicals.
  • radicals containing a sulfur atom the sulfur atom can be oxidized to a radical SO or S (O) 2
  • carboxamide denotes CONH2.
  • sulphonamide denotes SO2NH2.
  • acyl radical or r-CO- denotes a linear or branched radical containing at most 12 carbon atoms in which the radical r represents a hydrogen atom, an alkyl, cycloalkyl, cycloalkenyl, heterocycloalkyl or aryl radical, these radicals having the values indicated above and being optionally substituted as indicated: mention is made for example of the radicals formyl, acetyl, propionyl, butyryl or benzoyl, or valeryl, hexanoyl, acryloyl, crotonoyl or carbamoyl; the term "cycloalkyl radical” denotes a monocyclic or bicyclic carbocyclic radical containing from 3 to 10 ring members and in particular denotes the cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl radicals,
  • cycloalkylalkyl radical denotes a radical in which cycloalkyl and alkyl are chosen from the values indicated above: this radical thus designates, for example, the cyclopropylmethyl, cyclopentylmethyl, cyclohexylmethyl and cycloheptylmethyl radicals.
  • acyloxy radical is meant acyl-O- radicals in which acyl has the meaning indicated above: for example, acetoxy or propionyloxy radicals.
  • acylamino radical is meant the acyl-N- radicals in which acyl has the meaning indicated above.
  • aryl radical refers to unsaturated, monocyclic or fused carbocyclic ring radicals. Examples of such an aryl radical include phenyl or naphthyl radicals.
  • Arylalkyl is understood to mean the radicals resulting from the combination of the alkyl radicals mentioned above which are optionally substituted and the aryl radicals also mentioned above, which are optionally substituted: for example, the benzyl, phenylethyl, 2-phenethyl, triphenylmethyl or naphthyleneemethyl radicals are mentioned.
  • heterocyclic radical denotes a saturated (heterocycloalkyl) or partially or totally unsaturated (heteroaryl) carbocyclic radical consisting of 4 to 10 members interrupted by one or more heteroatoms, which may be identical or different, chosen from oxygen, nitrogen or of sulfur.
  • heterocycloalkyl radicals mention may be made in particular of the dioxolane, dioxane, dithiolane, thiooxolane, thiooxane, oxiranyl, oxolanyl, dioxolanyl, piperazinyl, piperidyl, pyrrolidinyl, imidazolidinyl, imidazolidine-2,4-dione, pyrazolidinyl or morpholinyl radicals.
  • heterocycloalkyl radicals mention may be made in particular of optionally substituted piperazinyl, N-methylpiperazinyl, piperidyl, optionally substituted, optionally substituted pyrrolidinyl, imidazolidinyl, pyrazolidinyl, morpholinyl, hexahydropyran or thiazolidinyl radicals.
  • heterocycloalkylalkyl radical is meant radicals in which the heterocycloalkyl and alkyl radicals have the above meanings
  • 6-membered heteroaryl radicals such as 2-pyridyl, 3-pyridyl and 4-pyridyl, pyrimidyl, pyridazinyl and pyrazinyl radicals.
  • heteroaryl radicals containing at least one heteroatom selected from sulfur, nitrogen and oxygen mention may be made, for example, of benzothienyl, benzofuryl, benzopyrrolyl, benzothiazolyl, benzimidazolyl, imidazopyridyl, purinyl, pyrrolopyrimidinyl, pyrolopyridinyl, benzoxazolyl, benzisoxazolyl and benzisothiazolyl.
  • alkylamino radical is meant the radicals in which the alkyl radical is chosen from the alkyl radicals mentioned above.
  • Alkyl radicals having at most 4 carbon atoms are preferred and mention may be made, for example, of methylamino, ethylamino, propylamino or butylamino radicals, linear or branched.
  • dialkylamino radical means the radicals in which the identical or different alkyl radicals are chosen from the alkyl radicals mentioned above. As previously, alkyl radicals having at most 4 carbon atoms are preferred, and for example linear or branched dimethylamino, diethylamino or methylethylamino radicals may be mentioned.
  • patient refers to humans but also other mammals.
  • prodrug refers to a product that can be transformed in vivo by metabolic mechanisms (such as hydrolysis) into a product of formula (I).
  • metabolic mechanisms such as hydrolysis
  • an ester of a product of formula (I) containing a hydroxyl group can be converted by in vivo hydrolysis to its parent molecule.
  • an ester of a product of formula (I) containing a carboxy group can be converted by hydrolysis in vivo into its parent molecule.
  • hydroxyl group-containing esters of the formula (I) such as acetates, citrates, lactates, tartrates, malonates, oxalates, salicylates, propionates, succinates, fumarates, maleates, methylene bisulfates and the like.
  • b-hydroxynaphthoates gentisates, isethionates, di-p-toluoyltartrates, methanesulfonates, ethanesulfonates, benzenesulfonates, p-toluenesulfonates, camphorsulfonates, cyclohexylsulfamates and quinates.
  • Particularly useful hydroxyl-containing products of the formula (I) can be prepared from acidic residues such as those described by Bundgaard et al. al., J. Med. Chem., 1989, 32, page 2503-2507: these esters include, in particular, substituted (aminomethyl) benzoates, dialkylamino-methylbenzoates in which the two alkyl groups may be bonded together or may be interrupted by an oxygen atom or by a optionally substituted nitrogen atom is an alkyl nitrogen atom or morpholino-methyl) benzoates, eg 3- or 4- (morpholinomethyl) benzoates, and (4-alkylpiperazin-1-yl) benzoates, eg 3- or 4- (4-alkylpiperazin-1-yl) benzoates.
  • the carboxyl group (s) of the products of formula (I) may be salified or esterified by the various groups known to those skilled in the art, among which may be mentioned, by way of non-limiting examples, the following compounds.
  • mineral bases such as, for example, one equivalent of sodium, potassium, lithium, calcium, magnesium or ammonium or organic bases such as, for example, methylamine, propylamine, trimethylamine, diethylamine, triethylamine, N, N-dimethylethanolamine, tris (hydroxymethyl) amino methane, ethanolamine, pyridine, picoline, dicyclohexylamine, morpholine, benzylamine, procaine, lysine , arginine, histidine, N-methylglucamine,
  • the alkyl radicals to form alkoxycarbonyl groups such as, for example, methoxycarbonyl, ethoxycarbonyl, tert-butoxycarbonyl or benzyloxycarbonyl, these alkyl radicals being able to be substituted by radicals chosen for example from among the atoms halogen, hydroxyl, alkoxy, acyl, acyloxy, alkylthio, amino or aryl groups such as, for example, in chloromethyl, hydroxypropyl, methoxymethyl, propionyloxymethyl, methylthiomethyl, dimethylaminoethyl, benzyl or phenethyl groups.
  • alkoxycarbonyl groups such as, for example, methoxycarbonyl, ethoxycarbonyl, tert-butoxycarbonyl or benzyloxycarbonyl
  • these alkyl radicals being able to be substituted by radicals chosen for example from among the atoms halogen, hydroxyl,
  • Esterified carboxy is understood to mean, for example, radicals such as alkyloxycarbonyl radicals, for example methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, butyl or tert-butyloxycarbonyl, cyclobutyloxycarbonyl, cyclopentyloxycarbonyl or cyclohexyloxycarbonyl radicals.
  • radicals such as alkyloxycarbonyl radicals, for example methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, butyl or tert-butyloxycarbonyl, cyclobutyloxycarbonyl, cyclopentyloxycarbonyl or cyclohexyloxycarbonyl radicals.
  • radicals formed with easily cleavable ester residues such as the methoxymethyl and ethoxymethyl radicals; acyloxyalkyl radicals such as pivaloyloxymethyl, pivaloyloxyethyl, acetoxymethyl or acetoxyethyl; the alkyloxycarbonyloxy alkyl radicals such as methoxycarbonyloxy methyl or ethyl radicals, isopropyloxycarbonyloxy methyl or ethyl radicals.
  • ester radicals can be found, for example, in European Patent EP 0 034 536.
  • aminodated carboxy is meant radicals of the -CONH 2 type whose hydrogen atoms are optionally substituted by one or two alkyl radicals to form alkylamino or dialkylamino radicals, themselves optionally substituted as indicated above or below, these radicals may also form with the nitrogen atom to which they are bound a cyclic amine as defined above.
  • Salified carboxy means salts formed for example with an equivalent of sodium, potassium, lithium, calcium, magnesium or ammonium. Mention may also be made of salts formed with organic bases such as methylamine, propylamine, trimethylamine, diethylamine and triethylamine. The sodium salt is preferred.
  • the addition salts with the inorganic or organic acids of the products of formula (I) can be, for example, the salts formed with hydrochloric, hydrobromic, hydroiodic, nitric, sulfuric, phosphoric, propionic, acetic, trifluoroacetic, formic acids, benzoic, maleic, fumaric, succinic, tartaric, citric, oxalic, glyoxylic, aspartic, ascorbic, alkylmonosulphonic acids such as, for example, methanesulfonic acid, ethanesulphonic acid, propanesulphonic acid, alkylsulphonic acids such as, for example, methanedisulfonic acid, alpha, beta-ethanedisulfonic acid, arylmonosulfonic acids such as benzenesulphonic acid and aryldisulphonic acids.
  • stereoisomerism can be defined in its broad sense as the isomerism of compounds having the same developed formulas, but whose different groups are arranged differently in space, such as in particular in monosubstituted cyclohexanes whose substituent can be in axial or equatorial position, and the different possible rotational conformations of the ethane derivatives.
  • stereoisomerism due to the different spatial arrangements of fixed substituents, either on double bonds or on rings, often called geometric isomerism or cis-trans isomerism.
  • stereoisomer is used in the present application in its broadest sense and therefore relates to all of the compounds indicated above.
  • the present invention thus relates in particular to the products of formula (I) as defined above in which: Het is chosen from the group consisting of:
  • R1 and / or R'1 is in the group consisting of H, halogen, CF3, nitro, cyano, alkyl, hydroxy, mercapto, amino, alkylamino, dialkylamino, alkoxy, alkylthio (methylthio), carboxy free or esterified with an alkyl radical , carboxamide, CO-NH (alkyl) and CON (alkyl) 2, NH-CO-alkyl, sulfonamide, NH-SO 2 -alkyl, S (O) 2 -NH (alkyl), S (O) 2-N (alkyl) ) 2, all the alkyl, alkoxy and alkylthio radicals being themselves optionally substituted by one or more identical or different radicals chosen from halogen, hydroxy, alkoxy, amino, alkylamino and dialkylamino; the substituent R of said products of formula (I) being chosen from the values defined above or below, said products of formula (I) being in all possible
  • R is chosen from the group consisting of:
  • W1 and W2 represent CH or one represents CH and the other N, X represents the oxygen atom, or a radical NR2,
  • R2 represents a hydrogen atom or a C1-C6 alkyl, C3-C8 cycloalkyl or C4-C8 heterocycloalkyl radical, these alkyl, cycloalkyl and heterocycloalkyl radicals being optionally substituted with one or more identical or different radicals chosen; among the radicals: hydroxy; mercapto; amino; azetidino; oxetano; tetrahydrofurano; piperidino; tetrahydropyrano; piperazino; alkylpiperazino; pyrrolidino; morpholino; homopiperidino; homopiperazino; quinuclidino; carboxamide; carboxy; carboxy esterified with an alkyl radical; CO-NH (alkyl); -O-CO-alkyl; NH-CO-alkyl; alkoxy; hydroxyalkoxy; methylthio); alkylamino; dialkylamino;
  • the present invention thus relates in particular to the products of formula (I) as defined above or below in which: Het is chosen from the group consisting of:
  • R is selected from the group consisting of:
  • R1 is in the group consisting of H 1 F, Cl, Br, CF3, NO2, CN, CH3, OH, OCH3, OCF3, CO2Me, CONH2, CONHMe, CONH- (CH2) 3-OMe, CONH-
  • R'1 is in the group consisting of H, CONH2, CONHMe and OMe;
  • R “1 is in the group consisting of F, Cl, OH, OMe, CN, O- (CH2) 3-OMe and
  • R2 represents a hydrogen atom or a C1-C6 alkyl, C3-C8 cycloalkyl or C4-C8 heterocycloalkyl radical, all these alkyl, cycloalkyl and heterocycloalkyl radicals being optionally substituted by one or more identical or different radicals chosen (s); ) among the radicals: - hydroxy; mercapto; amino; azetidino; oxetano; tetrahydrofurano; piperidino; tetrahydropyrano; piperazino; alkylpiperazino; pyrrolidino; morpholino; homopiperidino; homopiperazino; quinuclidino; carboxamide; carboxy; carboxy esterified with an alkyl radical, CO-NH (alkyl), -O-CO-alkyl,
  • the present invention thus relates in particular to the products of formula (I) as defined above or below in which: Het is chosen from the group consisting of:
  • R is selected from the group consisting of:
  • R 1 is in the group consisting of H, F, Cl, Br, CF 3, NO 2, CN 1 CH 3, OH,
  • R'1 is in the group consisting of H, CONH2, CONHMe and OMe,
  • R “1 is in the group consisting of F, Cl, OH, OMe, CN, O- (CH2) 3-OMe and
  • W1 and W2 represent CH or one represents CH and the other N,
  • Y represents OH, O-PO3H2, O-PO3Na2, O-SO3H2, O-SO3Na2, O-CH2-PO3H2, O-CH2-PO3Na2, O-CO-CH2-CO2tBu, O-CO-CH2-NH2 or O- CO-glycine, O-CO-CH 2 -N (Me) 2, O-CO-CH 2 -NHMe, O-CO-alanine, O-CO-serine,
  • glycine, -alanine, -serine, -lysine and -arginine represent the amino acid residues as known and described in conventional textbooks of the art.
  • Het is selected from the group consisting of: with:
  • R1 represents H 1 F, Cl, Br, CF3, NO2, CN, CH3, OH, OCH3, OCF3, CO2Me, CONH2, CONHMe, CONH- (CH2) 3-OMe, CONH- (CH2) 3-N (Me) 2, NHC (O) Me, SO2NH2, SO2N (Me) 2;
  • R'1 represents H, CONH2, CONHMe and Orne
  • R "1 represents F, Cl, OH, OMe, CN, O- (CH2) 3-OMe and O- (CH2) -N (Me) 2, and R is selected from the group consisting of:
  • W1 and W2 are CH or one is CH and the other N, R2 is hydrogen, 2-substituted ethyl, 3-substituted n-propyl, 4-substituted trans-cyclohexyl with OH, SH, NH2, OMe, NHMe,
  • R is selected from the group consisting of:
  • W1 represents CH or N
  • X represents the oxygen atom, or an NR2 radical
  • R2 represents a hydrogen atom or a C1-C6 alkyl, C3-C8 cycloalkyl or C4-C8 heterocycloalkyl radical, these alkyl, cycloalkyl and heterocycloalkyl radicals being optionally substituted with one or more identical or different radicals chosen from the radicals: hydroxy; mercapto; amino; azetidino; oxetano; tetrahydrofurano; piperidino; tetrahydropyrano; piperazino; alkylpiperazino; pyrrolidino; morpholino; homopiperidino; homopiperazino; quinuclidino; carboxamide; carboxy; carboxy esterified with an alkyl radical; CO-NH (alkyl); -O-CO-alkyl; NH-CO-alkyl; alkoxy; hydroxyalkoxy; methyl
  • Het is selected from the group consisting of:
  • R is selected from the group consisting of:
  • R1 is in the group consisting of H, F, Cl, Br, CF3, NO2, CN, CH3, OH, OCH3, OCF3, CO2Me, CONH2, CONHMe, CONH- (CH2) 3-OMe, CONH- (CH2) 3 -N (Me) 2, NHC (O) Me, SO2NH2, SO2N (Me) 2;
  • R'1 is in the group consisting of H, CONH2, CONHMe and OMe;
  • R "1 is in the group consisting of F, Cl, OH, OMe, CN, O- (CH2) 3-OMe and
  • W1 represents CH or N
  • R2 represents a hydrogen atom or a C1-C6 alkyl, C3-C8 cycloalkyl or C4-C8 heterocycloalkyl radical, all these alkyl, cycloalkyl and heterocycloalkyl radicals being optionally substituted by one or more identical or different radicals chosen (s); ) among the radicals: hydroxy; mercapto; amino; azetidino; oxetano; tetrahydrofurano; piperidino; tetrahydropyrano; piperazino; alkylpiperazino; pyrrolidinyl; morpholino; homopiperidino; homopiperazino; quinuclidino; carboxamide; carboxy; carboxy esterified with an alkyl radical, CO-NH (alkyl), -O-CO-alkyl, NH-CO-alkyl, alkoxy, hydroxyalkoxy, methylthio, alkylamino,
  • Het is selected from the group consisting of:
  • R is selected from the group consisting of:
  • R1 is in the group consisting of H, F, Cl, Br, CF3, NO2, CN, CH3, OH,
  • R'1 is in the group consisting of H, CONH2, CONHMe and OMe,
  • R “1 is in the group consisting of F, Cl, OH, OMe, CN, O- (CH2) 3-OMe and
  • W1 represents CH or N
  • Y represents OH, O-PO3H2, O-PO3Na2, O-SO3H2, O-SO3Na2, O-CH2-PO3H2, O-CH2-PO3Na2, O-CO-CH2-CO2tBu, O-CO-CH2-NH2 or O- CO-glycine, O-CO-CH 2 -N (Me) 2, O-CO-CH 2 -NHMe, O-CO-alanine, O-CO-serine,
  • Het is selected from the group consisting of:
  • R1 is H, F, Cl, Br, CF3, NO2, CN, CH3, OH, OCH3, OCF3, CO2Me, CONH2, CONHMe, CONH- (CH2) 3-OMe, CONH- (CH2) 3-N (Me) 2, NHC (O) Me, SO2NH2, SO2N (Me) 2;
  • R'1 represents H, CONH2, CONHMe and Orne;
  • R "1 represents F, Cl, OH, OMe, CN, O- (CH2) 3-OMe and O- (CH2) 3-
  • R 2 is hydrogen, 2-substituted ethyl, 3-substituted n-propyl, 4-substituted trans-cyclohexyl with OH, SH, NH 2, OMe, NHMe, N (Me) 2, N (Et) 2, azetidino, oxetano, pyrrolidone, tetrahydrofurano, piperidino, tetrahydropyrano, piperazino, morpholino, homopiperidino, homopiperazino, quinuclidino, CONH2 or COOH Y represents OH, O-PO3H2, O-PO3Na2, O-SO3H2, O-SO3Na2, O-
  • the present invention more particularly relates to the products of formula (I) as defined above whose names follow: 4- [4- (6-Fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9-yl] -2- (4-trans-hydroxy-cyclohexylamino) -benzamide
  • the products of formula (I) according to the present invention may be prepared according to the methods known to those skilled in the art and particularly according to the methods described below: the subject of the present invention is also the methods of synthesis of the products of formula (I) according to the present invention and in particular the general methods of synthesis described in the diagrams below.
  • the products of general formula (I) can be prepared from a 4-hydroxy-9H-carbazole derivative of general formula (II), by introducing firstly, the heterocycle Het to form a compound of general formula (III), or a precursor of radical R to form a product of general formula (IV), according to general scheme (1) below:
  • the present invention thus particularly relates to the scheme (1) above for the synthesis of the products of formula (I) as defined above.
  • the subject of the present invention is also, as new industrial products, the synthetic intermediates of formulas (III), (IV), (V) and (VI) as defined above in which the substituents Het, R, R2, W1 and W2 have the meanings indicated above for the products of formula (I) as defined above and za the signication indicated above in scheme (1).
  • the product of general formula (II) in which Z represents the trifluoromethanesulfonyloxy radical (also called “triflate” in the following of the invention) can be obtained by the action of a trifluoromethylsulfonation agent, such as N-phenyl-bis ( trifluoromethanesulfonimide), in an organic solvent such as dichloromethane, in the presence of an organic base such as triethylamine, according to scheme (2) below.
  • a trifluoromethylsulfonation agent such as N-phenyl-bis ( trifluoromethanesulfonimide)
  • organic solvent such as dichloromethane
  • this methyl carboxylate can be advantageously obtained by a carbonylation reaction in methanol, catalyzed by a palladium complex such as palladium acetate in the presence of phosphine type such as 1,3-diphenylphosphinopropane, according to the scheme
  • the products of general formula (II) in which Z represents a boronic acid or a boronic ester, which may be cyclic, may advantageously be prepared by the action of n-butyllithium and then of a borate, such as dimethyl borate, di-n-butyl or diisopropyl or pinacolyl borate, on 4-bromo-carbazole at low temperature in an organic solvent such as tetrahydrofuran, or alternatively from the derivative A-iodo-carbazole or derivative 4- trifluoromethylsulfonyloxy, in the presence of a palladium (O) catalyst, according to scheme (5).
  • a borate such as dimethyl borate, di-n-butyl or diisopropyl or pinacolyl borate
  • Het does not represent a heterocyl of imidazol-2-yl, triazol-3-yl, benzimidazol-2-yl or azabenzimidazol-2-yl type, and is optionally substituted by one or more radicals R1, as defined.
  • V1 N, CR1
  • TDMS tert-butyl-dimethylsilyl
  • TDMSCI tert-butyl-dimethylsilane
  • SEM 2- (trimethylsilyl) ethoxymethyl chlor
  • heterocycle is of imidazole, oxazole, or thiazole type, linked by its 2-position to the 4-position of carbazole
  • a product of general formula (III) from a triflate, a bromine or iodine derivative, an acid or a boronic ester, a carboxylic acid, an acid chloride of a carboxylic acid ester or an aldehyde, at the 4-position of a carbazole, by any one of synthetic methods known to those skilled in the art, such as those described in Comprehensive Organic Chemistry, by DHR Barton et al. (Pergamon Press) or Advances in Heterocyclic Chemistry (Academy Press) or Heterocyclic Compounds (Wiley Intersciences).
  • the present invention thus also relates to the methods of synthesis of the products of formula (IV), in which Z represents a carboxylic ester group, in particular methyl or ethyl ester, or a benzyloxy radical.
  • the present invention thus also relates to the methods of synthesis of the products of formula (V), in which Z represents a carboxylic ester group, in particular methyl or ethyl ester, or a benzyloxy radical.
  • the compounds of general formula (V) in which R is of type A can be prepared by hydrolysis of the cyano radical of a compound of general formula (IV). This hydrolysis can be carried out, advantageously in the context of the invention, by the action of an aqueous solution of hydrogen peroxide, according to scheme (11):
  • a monosubstituted hydrazine with a radical R2 in a polar solvent, such as n-butanol, on a nitrile of general formula (IV), orthosubstituted by a halogen atom, very preferably a fluorine atom,
  • N1-N3-alkylated regioisomers is generally obtained, which can be separated using conventional methods known to those skilled in the art.
  • the compounds of general formula (V), in which R is of type B and X is an oxygen atom, can be prepared, advantageously in the context of the invention, by the action of a hydroxylamine-N-protected, such as that N-tert-butyloxycarbonyl-hydroxylamine, in the presence of a strong base, such as potassium tert-butoxide, on a nitrile of general formula (IV), orthosubstituted by a halogen atom, very preferably an atom of fluorine in a solvent such as DMF, according to scheme (14):
  • the compounds of general formula (V), in which R is of type B and X is a sulfur atom, can be prepared, advantageously in the context of the invention, by the action of sodium sulphide in a solvent such as DMSO, on a nitrile of general formula (IV), orthosubstituted by a halogen atom, very preferably a fluorine atom, followed by the action of ammonia in the presence of sodium hypochlorite, according to scheme (15) , especially under the conditions described in Biorg. Med. Chem Lett. (2007), 17 (6), 4568:
  • the compounds of general formula (V), in which R is of D type, with W 3 is a nitrogen atom, can be prepared, advantageously in the context of the invention, by the action of ammonia, on a nitrile of general formula (IV), orthosubstituted by a halogen atom, very preferably a fluorine atom, followed by the action of a mixture of ethyl orthoformate and ammonium acetate, operating according to the scheme ( 17), especially under the conditions described in J. Het. Chem.
  • the present invention thus also relates to the methods of synthesis of the products of formula (VI).
  • Het is a benzimidazole or azabenzimidazole-type heterocyclic ring, or alternatively of the benzoxazole or azabenzoxazole, benzothiazole or azabenzothiazole type, linked by its 2-position to the 4-position of carbazole
  • it is particularly advantageous to form said heterocycle by coupling of orthophenylenediamine or diamino-pyridine derivative - or orthoaminophenol, orthoaminothiophenol or amino-hydroxy-pyridine or ortho-disubstituted amino-mercaptopyridine derivative - with derivative of general formula (IV) in which Z represents an acid or an ester, in particular a methyl or ethyl ester, according to scheme (21):
  • cyclization conditions of the mixture of intermediate amides can be used in the context of the invention, such as acetic acid or a mixture of acid and trifluoroacetic anhydride. It is also particularly advantageous, in the context of the invention, to carry out this type of thermal cyclization in an acid medium by heating in a microwave reactor.
  • heterocycle is of the imidazole, oxazole or thiazole type, linked by its 2-position to the 4-position of carbazole, it is particularly advantageous to form said heterocycle from an acid, or an ester, in operating according to scheme (22):
  • heterocycle is an imidazole or an imidazoline: from a 2-azidoethylamine, according to Tetrahedron, 47 (38), 1991, 8177-94,
  • Palladium-Xanthphos formed from palladium acetate and 4,5- bis (diphenylphosphino) -9,9-dimethylxanthene, in a solvent such as dioxane,
  • Het represents a heterocyl of imidazol-2-yl, triazol-3-yl, benzimidazol-2-yl or azabenzimidazol-2yl type, and is optionally substituted with one or more radicals R1, as defined above
  • Said protecting group will either be spontaneously cleaved during Buchwald-Hartwig reactions and / or aromatic nucleophilic substitution, or cleaved after these reactions, using any of the methods known to those skilled in the art.
  • Het does not represent a heterocyl of imidazol-2-yl, triazol-3-yl, benzimidazol-2-yl or azabenzimidazol-2-yl type, and is optionally substituted by one or more radicals R1, as defined.
  • Het heterocycle is of the benzimidazole or azabenzimidazole type, or else of the benzoxazole or azabenzoxazole, benzothiazole or azabenzothiazole type, linked by its 2-position to the 4-position of the carbazole, it is particularly advantageous to form said heterocycle by coupling.
  • cyclization conditions of the mixture of intermediate amides can be used in the context of the invention, such as acetic acid or a mixture of acid and trifluoroacetic anhydride. It is also particularly advantageous, in the context of the invention, to carry out this type of thermal cyclization in an acid medium by heating in a microwave reactor.
  • heterocycle Het is of imidazole, oxazole or thiazole type, linked by its 2-position to the 4-position of carbazole, it is particularly advantageous to form said heterocycle from an acid, or an ester , operating according to the scheme (28):
  • the compounds of general formula (I) in which R is of type A can be prepared by hydrolysis of the cyano radical of a compound of general formula (VI). This hydrolysis can be carried out, advantageously in the context of the invention, by the action of an aqueous solution of hydrogen peroxide in an alkaline medium in a mixture of DMSO and ethanol, according to scheme (29):
  • the compounds of general formula (I), in which R is of type B and X is an oxygen atom, can be prepared, advantageously in the context of the invention, by the action of a hydroxylamine-N-protected, such as that N-tert-butyloxycarbonyl-hydroxylamine, in the presence of a strong base, such as potassium tert-butoxide, on a nitrile of general formula (VI), orthosubstituted by a halogen atom, very preferably a fluorine atom in a solvent such as DMF, according to scheme (32):
  • the compounds of general formula (I), in which R is of type B and X is a sulfur atom, can be prepared, advantageously in the context of the invention, by the action of sodium sulphide in a solvent such as DMSO, on a nitrile of general formula (VI), orthosubstituted with a halogen atom, very preferably a fluorine atom, followed by the action of ammonia in the presence of sodium hypochlorite, according to scheme (33) , especially under the conditions described in Biorg.
  • the compounds of general formula (I), in which R is of type C, may advantageously be prepared by the action of hydroxylamine hydrochloride on a nitrile of general formula (VI), orthosubstituted by a halogen atom, very preferably a fluorine atom, according to scheme (34), especially under the conditions described in Zeitschrift fur Chemie (1984), 24 (7), 254:
  • the compounds of general formula (I), in which R is of D type, with W 3 is a nitrogen atom, can be prepared, advantageously in the context of the invention, by the action of ammonia, on a nitrile of general formula (VI), orthosubstituted with a halogen atom, very preferably a fluorine atom, followed by the action of a mixture of ethyl orthoformate and ammonium acetate, operating according to the scheme ( 35), especially under the conditions described in J. Het. Chem.
  • R is of type E
  • R is of type E
  • a base such as triethylamine or n-butylamine.
  • This alkylation can be carried out according to the methods known to those skilled in the art, in particular by treatment with a base such as sodium hydride followed by the action of a halogenated derivative R2-Hal. By doing so, a mixture of N1- and N3-alkyl regioisomers is generally obtained, which can be separated using standard methods known to those skilled in the art.
  • Y represents a phosphate radical, in acid or salt form
  • Y is generally carried out by the action of di-O-benzyl- or di-O-phenylphosphoric acid chloride on a derivative of general formula (I) of type A 'or B' wherein Y is OH, in a solvent such as pyridine, followed by hydrogenolysis in the presence of a palladium catalyst (palladium on charcoal or palladium hydroxide).
  • a palladium catalyst palladium on charcoal or palladium hydroxide
  • heterocyclic Het is of benzimidazole or azabenzimidazole or imidazole type, linked by its 2-position to the 4-position of carbazole, it may be advantageous in the context of the invention to protect the NH from the heterocycle in the form of N- Boc, N-TBDMS or N-SEM.
  • Y represents a sulfate radical, in acid or salt form
  • it is generally carried out by the action of sulfur trioxide - or sulfur trioxide - or oleum - mixture of sulfuric acid and sulfuric anhydride - on a derivative of general formula (I) of type A 'or B' wherein Y is OH, in a solvent such as pyridine.
  • a solvent such as pyridine.
  • the heterocyclic Het is of benzimidazole or azabenzimidazole or imidazole type, linked by its 2-position to the 4-position of carbazole, it may be advantageous in the context of the invention to protect the NH from the heterocycle in the form of N- Boc, N-TBDMS or N-SEM.
  • Y represents a phosphonyloxymethyloxy radical
  • a strong base such as sodium hydride
  • di-tert-butyl ester of phosphoric acid or chloromethyl phosphoric acid on a derivative of general formula (I) of type A 'or B' wherein Y is OH, in a solvent such as DMF, followed by hydrolysis in acidic medium, such as a solution 4N hydrochloric acid.
  • heterocyclic Het is of benzimidazole or azabenzimidazole or imidazole type, linked by its 2-position to the 4-position of carbazole, it may be advantageous in the context of the invention to protect the NH from the heterocycle in the form of N- Boc, N-TBDMS or N-SEM.
  • Y represents a carboxylic ester radical
  • a carboxylic acid in the presence of an agent for activating the acid function, such as 1- (3-dimethylaminopropyl) -3-hydrochloride.
  • EDCI ethylcarbodiimide
  • DMAP 4-dimethylaminopyridine
  • TOTU o - ((ethoxycarbonyl) cyanomethyleneamino) -N, N, N ', N'-tetramethyluronium tetrafluoroborate
  • TOTU solvent such as dichloromethane.
  • ester is an ester amino acid derivative, di- or tri-peptide
  • heterocyclic Het is of the benzimidazole or azabenzimidazole or imidazole type, linked by its 2-position to the 4-position of carbazole, it may be advantageous in the context of the invention to protect the NH of the heterocycle in the form of N-Boc, N-TBDMS or N-SEM.
  • K 2 CO 3 is advantageous in the context of the invention to protect the NH of the heterocycle in the form of N-Boc, N-TBDMS or N-SEM.
  • the products of the present invention are endowed with valuable pharmacological properties: they have been found to possess, in particular, properties inhibiting the activities of chaperone proteins and in particular their ATPase activities.
  • the products of formula (I) can also be used in the veterinary field.
  • the subject of the invention is therefore the application, as medicaments, of the products of formula (I) as defined above.
  • the subject of the invention is particularly the application as medicaments of the products of formula (I) as defined above, whose names follow: 4- [4- (6-fluoro-1H-benzimidazole) 2-yl) -9H-carbazol-9-yl] -2- (4-trans-hydroxy-cyclohexylamino) -benzamide
  • the subject of the invention is in particular, as medicaments, products of formula (I) as defined above:
  • Het is selected from the group consisting of:
  • R1 is H, F, Cl, Br, CF3, NO2, CN, CH3, OH, OCH3, OCF3, CO2Me, CONH2, CONHMe, CONH- (CH2) 3-OMe, CONH- (CH2) 3-N (Me) 2, NHC (O) Me, SO2NH2, SO2N (Me) 2,
  • R'1 represents H, CONH2, CONHMe and OMe
  • R "1 represents F, Cl, OH, OMe, CN, O- (CH2) 3-OMe and O- (CH2) 3 -N (Me) 2
  • R is selected from the group consisting of:
  • R 2 is hydrogen, 2-substituted ethyl, 3-substituted n-propyl, 4-substituted trans-cyclohexyl with OH 1 SH, NH 2, OMe, NHMe, N (Me) 2, N (Et) 2, azetidino, oxetano, pyrrolidino, tetrahydrofurano, piperidino, tetrahydropyrano, piperazino, morpholino, homopiperidino, homopiperazino, quinuclidino, CONH2 or COOH and wherein Y is OH, O-PO3H2, O-PO3Na2, O-SO3H2, O-SO3Na2, O-CH2-PO3H2, O-CH2.
  • O-CO-CH2-CO2tBu O-CO-CH2-NH2 or O-CO-glycine
  • O-CO-CH 2 -N (Me) 2 O-CO-CH 2 -NHMe
  • O-CO-alanine O-CO-serine
  • O-CO-lysine O-CO-arginine
  • O-CO-glycine-lysine O-CO-alanine-lysine, with n represents 2 or 3.
  • products of formula (I) being in all possible isomeric forms tautomers, racemates, enantiomers and diastereoisomers; isomers, as well as the addition salts with inorganic and organic acids or with the pharmaceutically acceptable inorganic and organic bases of said products of formula (I).
  • the products can be administered parenterally, orally, perlingually, rectally or topically.
  • the invention also relates to pharmaceutical compositions, characterized in that they contain, as active ingredient, at least one of the drugs of general formula (I).
  • compositions may be presented in the form of injectable solutions or suspensions, tablets, coated tablets, capsules, syrups, suppositories, creams, ointments and lotions.
  • These pharmaceutical forms are prepared according to the usual methods.
  • the active ingredient can be incorporated into excipients usually used in these compositions, such as aqueous vehicles or not, talc, gum arabic, lactose, starch, magnesium stearate, cocoa butter, fats of animal or vegetable origin, paraffinic derivatives, glycols, various wetting agents, dispersing or emulsifying agents, preservatives.
  • the usual dose variable depending on the subject treated and the condition in question, can be, for example, from 10 mg to 500 mg per day in humans, orally.
  • the present invention thus relates to the use of products of formula (I) as defined above or of pharmaceutically acceptable salts of said products of formula (I) for the preparation of medicaments intended to inhibit the activity of chaperone proteins, and especially of Hsp90.
  • the present invention thus relates particularly to the use of products of formula (I) as defined above or of pharmaceutically acceptable salts of said products of formula (I) in which the chaperone protein is HSP90.
  • the present invention thus relates to the use of products of formula (I) as defined above or of pharmaceutically acceptable salts of said products of formula (I) for the preparation of a medicament intended to prevent or treat a disease characterized by the disruption of the activity of a chaperone protein Hsp90 type and in particular such a disease in a mammal.
  • the present invention relates to the use of products of formula (I) as defined above or of pharmaceutically acceptable salts of said products of formula (I) for the preparation of a medicament intended to prevent or treat a disease belonging to the following group : neurodegenerative diseases such as Huntington's disease, Parkinson's disease, focal cerebral ischemia, Alzheimer's disease, multiple sclerosis and amyotrophic lateral sclerosis, malaria, Brugia and Bancroft filariasis, toxoplasmosis, treatment-resistant fungi, hepatitis B, hepatitis C, herpes virus, dengue (or tropical flu), spinal and bulbar muscular atrophy, mesangial cell proliferation disorders, thrombosis , retinopathies, psoriasis, muscle degeneration, diseases in oncology, cancers.
  • neurodegenerative diseases such as Huntington's disease, Parkinson's disease, focal cerebral ischemia, Alzheimer's disease, multiple sclerosis and amyotrophic lateral sclerosis, malaria, Brugi
  • the present invention thus relates to the use of products of formula (I) as defined above or of pharmaceutically acceptable salts of said products of formula (I) for the preparation of a medicament for treating diseases in oncology.
  • the present invention particularly relates to the use of products of formula (I) as defined above or pharmaceutically acceptable salts of said products of formula (I) for the preparation of a medicament for treating cancers.
  • the present invention is particularly interested in the treatment of solid tumors and in the treatment of cancers resistant to cytotoxic agents.
  • the present invention thus relates in particular to the use of products of formula (I) as defined in any one of the preceding claims or of pharmaceutically acceptable salts of said products of formula (I) for the preparation of a medicament intended for treating cancers including lung, breast and ovarian cancers, glioblastomas, chronic myeloid leukemias, acute lymphoblastic leukemias, prostate, pancreatic and colon cancers, metastatic melanomas, thyroid tumors and renal carcinomas.
  • cancers including lung, breast and ovarian cancers, glioblastomas, chronic myeloid leukemias, acute lymphoblastic leukemias, prostate, pancreatic and colon cancers, metastatic melanomas, thyroid tumors and renal carcinomas.
  • Hsp90 inhibitors are also mentioned, without limitation:
  • non-small cell lung cancers breast cancers, ovarian cancers and glioblastomas that overexpress EGF-R or HER2;
  • the present invention is more particularly concerned with the treatment of breast, colon and lung cancer.
  • the present invention also relates to the use of products of formula (I) as defined above or of pharmaceutically acceptable salts of said products of formula (I) for the preparation of a medicament intended for the chemotherapy of cancers.
  • the products of formula (I) according to the present invention may be used alone or in combination with chemotherapy or radiotherapy or alternatively in combination with other therapeutic agents.
  • the present invention thus relates in particular to pharmaceutical compositions as defined above additionally containing active principles of other cancer chemotherapy drugs.
  • Such therapeutic agents may be anti-tumor agents commonly used.
  • inhibitors of protein kinases include butyrolactone, flavopiridol, 2- (2-hydroxyethylamino) -6-benzylamino-9-methylpurine, olomucine, Glivec and Iressa.
  • the products of formula (I) according to the present invention can thus also advantageously be used in combination with anti-proliferative agents: by way of examples of such anti-proliferative agents but without however being limited to this list, mention may be made of the aromatase inhibitors, antiestrogens, topoisomerase I inhibitors, topoisomerase II inhibitors, microtubule-active agents, alkylating agents, histone deacetylase inhibitors, farnesyl transferase inhibitors, COX inhibitors -2, MMP inhibitors, mTOR inhibitors, antineoplastic antimetabolites, platinum compounds, proteasome inhibitors, such as Bortezomib, Histone Decalactylase Inhibitors (HDACs), such as SAHA, including inhibitors of HDAC ⁇ , compounds decreasing the activity of protein kinases and also anti-angiogenic compounds, gonadorelin agonists, anti-androgens, bengamides, biphophonates and trastuzumab.
  • anti-microtubule agents such as taxoids, epothilones, vinka-alkaloids, alkylating agents such as cyclophosphamide, DNA-intercalating agents such as cis-platinum, and the like.
  • oxaliplatin interactive agents on topoisomerase such as camptothecin and derivatives, anthracyclines such as adriamycin, antimetabolites such as 5-fluorouracil and derivatives and the like.
  • the present invention therefore relates to products of formula (I) as Hsp90 chaperone inhibitors, said products of formula (I) being in all possible isomeric forms tautomers, racemic, enantiomers and diastereoisomers, as well as addition salts with the inorganic and organic acids or with the pharmaceutically acceptable inorganic and organic bases of said products of formula (I) as well as their prodrugs.
  • the present invention particularly relates to products of formula (I) as defined above as HSP90 inhibitors.
  • Solvent A: H 2 O (0.1% formic acid)
  • Solvent A: H 2 O (0.1% formic acid) B: CH 3 CN (0.1% formic acid) Column temperature: 70 ° C Flow rate: 0.9 ml / min Gradient: 5% to 100% of B in 5.3; 5.5 min: 100% B; 6.3 min: 5% of B
  • Step 1 A mixture of 4.78 g of 4-hydroxycarbazole, 9.32 g of N-phenyl-bis (trifluoromethanesulfonimide), 3.64 ml of triethylamine in 200 ml is stirred for 24 hours under argon at room temperature. dichloromethane. The reaction medium is evaporated to dryness in vacuo and the blackish residue is chromatographed on silica gel (40-63 ⁇ m), eluting with dichloromethane. 7.07 g of 4-trifluoromethanesulfonyloxycarbazole are obtained in the form of a white solid, the characteristics of which are as follows: melting point (Kofler): 90 ° C.
  • Step 2 In an autoclave, a mixture of 2.0 g of 4-trifluoromethanesulfonyloxycarbazole obtained according to the preceding step, 142 mg of palladium acetate, 262 mg, is maintained at 50 ° C. for 8 hours under 2 bar of carbon monoxide. 1,3-diphenylphosphinopropane and 0.88 ml of triethylamine in 35 ml of methanol and 85 ml of dimethylformamide. After purging with argon, the reaction medium is evaporated to dryness under vacuum and the orange residue is chromatographed on silica gel (40-63 ⁇ m), eluting with dichloromethane. 1.29 g of methyl ester of 9H-carbazole-4-carboxylic acid are obtained in the form of a greenish solid whose characteristics are as follows:
  • Step 3 In a 250 ml flask under argon, 391 mg of a 60% suspension in sodium hydride petroleum jelly are added at room temperature in 4 times in 2 hours to a solution of 2.0 g of sodium hydride.
  • the reaction medium is evaporated to dryness in vacuo and the residue is chromatographed on silica gel (40-63 ⁇ m), eluting with a mixture of dichloromethane and cyclohexane (50:50).
  • 3.2 g of methyl ester of 9- (3-bromo-4-cyano-phenyl) -9H-carbazole-4-carboxylic acid are obtained in the form of a white solid, the characteristics of which are as follows:
  • Step 4 In a microwave reactor, a mixture of 405 mg of 9- (3-bromo-4-cyano-phenyl) -9H-carbazole acid methyl ester is heated at 115 ° C. for 30 minutes.
  • -4-carboxylic acid obtained according to the preceding step 461 mg of frans-4-amino-cyclohexanol, 45 mg of palladium acetate, 192 mg of sodium tert-butoxide and 111 mg of 1,1'-bis (diphenylphosphino) ferrocene in 18 ml of toluene.
  • the reaction medium is clarcel filtered with washing with 200 mL of ethyl acetate.
  • Step 5 In a 250 ml flask, a mixture of 220 mg of methyl ester of 9- [4-cyano-3- (4-hydroxy-cyclohexylamino) -phenyl acid is refluxed for 7 hours. ] -9H-carbazole-4-carboxylic acid obtained according to the preceding step and 401 ⁇ l of 2.5N sodium hydroxide in 20 ml of methanol. The reaction medium is evaporated to dryness under vacuum. The residue is taken up in 20 ml of 1M hydrochloric acid and extracted with 3 times 30 ml of ethyl acetate.
  • Step 6 In a 50 ml flask, a mixture of 155 mg of 9- [4-cyano-3- (4-frans-hydroxy-cyclohexylamino) -phenyl] -9H-acid is stirred at room temperature for 3.5 hours.
  • -carbazole-4-carboxylic acid obtained according to the previous step, 48 mg of 4-fluoro-o-phenylenediamine, 131 mg of o - ((ethoxycarbonyl) cyanomethyleneamino) -N, N, N ', N'- tetramethyluronium (TOTU) and 70 ⁇ l of diisopropylethylamine in 20 ml of dimethylformamide.
  • TOTU tetramethyluronium
  • Step 7 In a 100 ml flask, 185 mg of 9- [4-cyano-3- (4-furan) -benzyl-2- (4-fluoro-phenyl) -amide were heated for 1 hour under reflux. hydroxy-cyclohexylamino) -phenyl] -9H-carbazole-4-carboxylic acid obtained according to the preceding step in 15 ml of glacial acetic acid. The reaction medium is evaporated to dryness in vacuo and the residue is chromatographed on silica gel (15-40 ⁇ m), eluting with a mixture of dichloromethane and methanol (99: 1).
  • Step 8 In a 100 ml flask, 0.4 ml of a 30% aqueous solution of hydrogen peroxide is added to a mixture of 111 mg of 4- [4- (6-fluoro-1H-benzimidazole) 2-yl) -9H-carbazol-9-yl] -2- (4-frans-hydroxy-cyclohexylamino) -benzonitrile obtained according to the preceding step in 2 ml of ethanol and 0.8 ml of dimethylsulfoxide and 0.4 1M sodium hydroxide and stirred the mixture for 1 hour at room temperature. 40 ml of distilled water are added and the mixture is extracted with 3 times 30 ml of ethyl acetate.
  • Step 1 In a 5 ml microwave reactor, 78.8 mg of trifluoromethanesulphonic acid 9-H-carbazol-4-yl ester, obtained according to Step 1 of Example 1, are successively charged. 2.5 ml of toluene, 56.2 mg of quinolin-3-boronic acid, 55.6 mg of sodium carbonate and 57.8 mg of tetrakis (triphenylphosphine) palladium (0). After stirring for 30 seconds at room temperature, the reaction mixture is heated, with stirring, at 115 ° C. for 30 minutes. After cooling to room temperature, the reaction medium is taken up in 5 ml of ethyl acetate and 2 ml of water.
  • Step 2 In a 20 ml monocolumn flask, under an argon atmosphere, 80 mg of 4- (quinolin-3-yl) -9H-carbazole, obtained according to the preceding step, and 60 mg of 2-bromo are dissolved. 4-Fluoro-benzonitrile in 2 ml of anhydrous dimethylformamide (DMF). 16.3 mg of 60% sodium hydride in oil are then added and the mixture is stirred at ambient temperature for 4 hours.
  • DMF dimethylformamide
  • Step 3 In a 5 ml microwave reactor, 95 mg of 2-bromo-4 - [(4-quinolin-3-yl) -9H-carbazol-9-yl] benzonitrile, obtained in succession, are loaded successively. previous step, 92 mg of trans-4-aminocyclohexanol, 9 mg of palladium (II) acetate, 38.5 mg of potassium tert-butoxide and 3.6 mL of toluene. After stirring for 30 seconds at room temperature, the reaction medium is heated at 115 ° C. for 15 minutes with stirring. After cooling, 5 ml of ethyl acetate and 3 ml of water are added.
  • Step 4 In a 10 ml monocolumn flask, 72 mg of
  • Step 1 To a solution of 0.40 g of methyl ester of 9H-carbazole-4-carboxylic acid, obtained according to step 2 of Example 1, in 30 ml of dioxane under an inert atmosphere of argon, 0.43 g of 4-bromo-2-fluorobenzonitrile, 2.2 g of cesium carbonate, 0.12 g of 9,9-dimethyl-4,5-bis (diphenylphosphino) xanthene and 0.04 are added successively. g of palladium acetate. The reaction mixture is refluxed for 3 hours, then cooled, filtered and concentrated under reduced pressure.
  • Step 2 To a solution of 0.69 g of 1,2-diamino-4-fluoro-benzene in 40 ml of toluene and 20 ml of tetrahydrofuran under an argon atmosphere are added in the course of 5 minutes at room temperature. 44 mL of a solution of 2M trimethylaluminum in toluene. After stirring for 15 minutes at room temperature, 1.25 g of methyl ester of 9- (4-cyano-3-fluoro-phenyl) -9H-carbazole-4-carboxylic acid, obtained according to US Pat. previous step, in 20 mL of tetrahydrofuran and heated at reflux for 1 hour.
  • Step 3 In a 2 ml microwave reactor, 100 mg 2-fluoro-4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H- are successively charged.
  • carbazol-9-yl] -benzonitrile obtained in the previous step, 0.8 ml of dimethylsulfoxide, 263 mg of potassium carbonate and 111 mg of N, N-diethylethylenediamine.
  • the reaction medium is heated at 100 ° C. for 45 minutes with stirring.
  • 2 ml of ethanol, 0.4 ml of 1M sodium hydroxide, 0.4 ml of 30% hydrogen peroxide are successively added and the mixture is stirred for 100 minutes at room temperature.
  • Step 1 A mixture of 545 mg of 9- [4-cyano-3- (4-hydroxy-cyclohexylamino) -phenyl] -9H-carbazole acid is stirred at room temperature for 4 hours.
  • 4-carboxylic acid, obtained according to step 5 of Example 1 147 mg of 3,4-diaminopyridine, 462 mg of o - [(ethoxycarbonyl) cyanomethyleneamino] -N, N, N ', N tetrafluoroborate; tetramethyluronium (TOTU) and 245 ⁇ l of diisopropylethylamine in 75 ml of dimethylformamide.
  • the reaction medium is evaporated to dryness under vacuum.
  • Step 2 In a 250 ml flask, 590 mg of 9- [4-cyano-3- (4-yl) -4-amino-pyridin-4-yl) -amide are heated for one hour under reflux. hydroxy-cyclohexylamino) -phenyl] -9H-carbazole-4-carboxylic acid, obtained according to the preceding step, in 50 ml of glacial acetic acid. The reaction medium is evaporated to dryness in vacuo and the residue is chromatographed on silica gel (15-40 ⁇ m), eluting with a mixture of dichloromethane and methanol (99/1 and 90/10).
  • Step 3 In a 100 ml flask, 0.98 ml of 30% hydrogen peroxide are added to a mixture of 240 mg of 2- (4-Frans-hydroxy-cyclohexylamino) -4- [4- (3H-imidazo) [4,5-c] pyridin-2-yl) -9H-carbazol-9-yl] benzoni-trile, obtained according to the preceding step, in 7 ml of ethanol and 3.5 ml of dimethylsulfoxide and 0.96 1M sodium hydroxide and stirred the mixture for 1 hour at room temperature. 40 ml of distilled water are added and the mixture is extracted with 3 times 40 ml of ethyl acetate.
  • Step 1 2.2 g of 9- [4-cyano-3- (4-enansulfonyl) -2-amino-4-fluoro-phenyl) -amide are refluxed for 1.5 hours. hydroxy-cyclohexylamino) -phenyl] -9H-carbazole-4-carboxylic acid, obtained according to step 6 of example 1, in 100 ml of acetic acid. After treatment, as in step 7 of Example 1, the residue is purified by chromatography on silica gel (15-40 ⁇ m), eluting with a mixture of dichloromethane and methanol (96/4 by volume).
  • Step 2 In a 50 ml three-necked flask, 1.36 ml of 30% hydrogen peroxide are added to a mixture of 200 mg of 4- (2-cyano-5- [4- (6-fluorinated 1H-benzimidazol-2-yl) -9H-carbazol-9yl] -phenylamino ⁇ -fraA7S-cyclohexyl of acetic acid, obtained in the preceding step, in 7.5 mL of ethanol and 3 mL of dimethylsulfoxide and 0.96 ml of sodium hydroxide
  • step 3 of Example 3 The procedure is as in step 3 of Example 3, but starting from 100 mg of 2-fluoro-4- [4- (6-fluoro-1H-benzimidazol-2-yl) -carbazol-9-yl). ] -benzonitrile, obtained according to step 2 of Example 3, 0.8 mL of dimethylsulfoxide, 263 mg of potassium carbonate and 94 mg of cyclohexylamine in 0.8 mL of dimethylsulfoxide. Then 0.4 ml of a 1M aqueous solution of sodium hydroxide, 0.4 ml of a 30% aqueous solution of hydrogen peroxide and 2 ml of ethanol are added to the reaction medium.
  • Step 3 of Example 3 The procedure is as in Step 3 of Example 3, but starting from 84 mg of 2-fluoro-4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9- yl] -benzonitrile, obtained according to step 2 of Example 3, 0.67 ml of dimethylsulfoxide, 83 mg of potassium carbonate and 300 mg of 3-amino-1-propanol in 0.67 ml of dimethylsulfoxide. Then 0.4 ml of a 1M aqueous solution of sodium hydroxide, 0.4 ml of a 30% aqueous solution of hydrogen peroxide and 2 ml of ethanol are added to the reaction medium.
  • Step 3 of Example 3 The procedure is as in Step 3 of Example 3, but starting from 84 mg of 2-fluoro-4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9- yl] benzonitrile, obtained according to step 2 of example 3, 111 mg of potassium carbonate and 607 mg of c / s-4-aminocyclohexanol hydrochloride in 0.67 ml of dimethylsulfoxide. Then 0.4 ml of a 1M aqueous solution of sodium hydroxide, 0.4 ml of a 30% aqueous solution of hydrogen peroxide and 2 ml of ethanol are added to the reaction medium.
  • Step 1 In a microwave reactor, a mixture of 1.015 g of methyl ester of 9- (3-bromo-4-cyano-phenyl) is heated at 160 ° C. for 1.5 hours.
  • -9H-carbazole-4-carboxylic acid obtained according to step 3 of example 1, 444 mg of acetamide, 71 mg of frans-N.N'-dimethylcyclohexane-1,2-diamine, 1,039 g of potassium carbonate and 95 mg of copper iodide in 20 ml of dioxane.
  • the reaction medium is poured into 200 ml of ethyl acetate.
  • the organic phase is washed with 100 ml of a saturated solution of sodium bicarbonate.
  • aqueous phase is reextracted with 2 times 100 ml of ethyl acetate.
  • the combined organic phases are washed twice with 50 ml of saturated sodium bicarbonate solution, once with 100 ml of saturated sodium chloride solution, dried over magnesium sulphate and evaporated to dryness under vacuum.
  • the residue is chromatographed on silica gel (40-63 ⁇ m) eluting with pure dichloromethane. 520 mg of methyl ester of 9- (3-acetylamino-4-cyano-phenyl) -9H-carbazole-4-carboxylic acid are obtained in the form of an off-white solid, the characteristics of which are as follows:
  • Step 2 In a 250 ml flask, a mixture of 300 mg of methyl ester of 9- (3-acetylamino-4-cyano-phenyl) -9H-carbazole-4-methyl acid is refluxed for 2 hours.
  • carboxylic acid obtained in the previous step and 66 mg of lithium hydroxide monohydrate in 30 ml of methanol.
  • the reaction medium is evaporated to dryness under vacuum and the residue taken up in 30 ml of 1M hydrochloric acid is extracted with 3 times 30 ml of dichloromethane.
  • the combined organic phases are washed with 30 ml of a saturated sodium chloride solution, dried over magnesium sulphate and evaporated to dryness under vacuum.
  • Step 3 In a 100 ml flask, a mixture of 113 mg of methyl ester of 9- (3-amino-4-cyano-phenyl) -9H-carbazole-4-carboxylic acid, which has been obtained, is refluxed. in the previous step, and 0.3 mL of 2.5 M sodium hydroxide in 10 mL of methanol. After 3.5 hours, 0.3 ml of 2.5 M sodium hydroxide are added and the refluxing continues for 5 hours in total and then allowed to return to room temperature overnight. The following day, the reaction medium is evaporated to dryness and the residue is taken up with 10 ml of 1M hydrochloric acid.
  • Step 4 In a 250 ml flask, a mixture of 77 mg of 9- (3-amino-4-cyano-phenyl) -9H-carbazole-4-carboxylic acid, obtained at room temperature, is stirred at room temperature for 3 hours. previous step, 30 mg 4-fluoro-o-phenylenediamine, 81 mg of o- ((ethoxycarbonyl) cyanomethyleneamino) -N, N, N ', N'-tetramethyluronium tetrafluoroborate (TOTU) and 43 ⁇ L of diisopropylethylamine in 10 ml dimethylformamide.
  • TOTU trifluoro-o-phenylenediamine
  • reaction medium is evaporated to dryness under vacuum and the residue is taken up in 75 ml of ethyl acetate and 50 ml of a saturated solution of sodium bicarbonate.
  • the aqueous phase is decanted and re-extracted with 2 times 50 ml of ethyl acetate.
  • the combined organic phases are washed twice with 50 ml of a saturated solution of sodium chloride, dried over magnesium sulphate and evaporated to dryness under vacuum.
  • 155 mg of a light brown solid of 9- (3-amino-4-cyano-phenyl) -9H-carbazole-4-carboxylic acid (2-amino-4-fluoro-phenyl) -amide are obtained, used without further characterization in the next step.
  • Step 5 In a 25 ml flask a mixture of 155 mg of 9- (3-amino-4-cyano-phenyl) - (2-amino-4-fluoro-phenyl) -amide is refluxed for 1 hour. ) -9H-carbazole-4-carboxylic acid, obtained in the previous step, and 10 mL of acetic acid. The reaction medium is evaporated to dryness under vacuum and the residue is chromatographed twice on silica gel (15-40 ⁇ m), eluting with a mixture of dichloromethane and methanol (95/5).
  • Step 6 In a 50 ml flask, 0.2 ml of 30% hydrogen peroxide is added to a mixture of 40 mg of 2-amino-4- [4- (6-fluoro-1H-benzimidazol-2- yl) -9H-carbazol-9-yl] -benzonitrile, obtained in the preceding step, in 1.0 mL of ethanol and 0.4 mL of dimethylsulfoxide and 0.2 mL of 1M sodium hydroxide and stirred mixing during VA hour at room temperature. 20 ml of distilled water are added and the mixture is extracted with 3 times 30 ml of ethyl acetate.
  • the reaction medium is stirred for 20 hours at room temperature and then concentrated under reduced pressure.
  • the residue is taken up in 25 ml of water and 50 ml of a mixture of dichloromethane and methanol (9/1 by volume).
  • the organic phase is decanted, and then the aqueous phase is reextracted twice with 50 ml of a mixture of dichloromethane and methanol (9/1 by volume).
  • the combined organic phases are washed with 25 ml of water, dried over magnesium sulphate and concentrated to dryness under reduced pressure.
  • the crude product thus obtained is purified by flash chromatography on 15 g of silica gel, eluting with a mixture of dichloromethane and ethanol (95/5 by volume).
  • Step 1 To a solution of 0.40 g of methyl ester of 9H-carbazole-4-carboxylic acid, obtained according to step 2 of Example 1, in 30 mL of dioxane under an inert atmosphere of argon, are successively added 0.49 g of 2-bromo-5-cyanopyridine, 2.2 g of cesium carbonate, 0.12 g of 9,9-dimethyl-4,5-bis (diphenylphosphino) xanthene and 0.04 g of palladium acetate. The reaction mixture is refluxed for 2 hours, then cooled, filtered and concentrated under reduced pressure.
  • Step 2 To a solution of 0.33 g of methyl ester of 9- (5-cyano-pyridin-2-yl) -9H-carbazole-4-carboxylic acid, obtained according to the previous step, in 30 ml of methanol are added 1.6 ml of 2M sodium hydroxide and then heated at 60 ° C. for 2 hours. After returning to ambient temperature, the reaction mixture is concentrated under reduced pressure, then 20 ml of water and a 1 M aqueous solution of HCl are added in order to bring the pH around 6. The aqueous phase is extracted with 3 ⁇ 100 ml. of ethyl acetate, then the organic phases are combined, dried over magnesium sulfate and concentrated under reduced pressure. 0.24 g of 9- (5-carbamoyl-pyridin-2-yl) -9H-carbazole-4-carboxylic acid is thus obtained in the form of a gummy residue, the characteristics of which are as follows:
  • Step 3 In a 50 ml flask, a mixture of 210 mg of 9- (5-carbamoyl-pyridin-2-yl) -9H-carbazole-4-carboxylic acid, obtained according to US Pat. previous step, of 105 mg of 4-fluoro-o-phenylenediamine, 273 mg of o- ((ethoxycarbonyl) cyanomethyleneamino) -N, N, N ', N'-tetramethyluronium tetrafluoroborate (TOTU) and 138 ⁇ l of diisopropylethylamine in 36 ml dimethylformamide.
  • o- ((ethoxycarbonyl) cyanomethyleneamino) -N, N, N ', N'-tetramethyluronium tetrafluoroborate (TOTU) 138 ⁇ l of diisopropylethylamine in 36 ml dimethylformamide.
  • Example 20 Synthesis of 4- [4- (6-aminopyridin-3-yl) -9H-carbazol-9-yl] -2 - [(4-en-7S-hydroxycyclohexyl) amino] benzamide.
  • Step 1 To a solution of 0.6 g of 4-trifluoromethanesulfonyloxycarbazole, obtained in step 1 of Example 1, in a mixture of 28 ml of dioxane and 9 ml of water, are added successively under argon, 1.85 g of 2-methylpropan-2-yl [5- (4,4,5,5-tetramethyl-1, 3,2-dioxaborolan-2-yl) pyridin-2-yl] carbamate, 2.48 g of cesium carbonate and 70 mg of 1,1'-bis (diphenylphosphino) ferrocene palladium (II) dichloride complexed with dichloromethane (1/1) [PdCl 2 (dppf) ' CH 2 Cl 2 ].
  • Step 2 To a solution of 0.26 g of 2-methylpropan-2-yl [5- (9H-carbazol-4-yl) pyridin-2-yl] carbamate in 15 mL of dioxane is added successively under argon, 0.217 g of 4-bromo-2-fluorobenzonitrile, 0.9 g of cesium carbonate, 0.05 g of (9,9-dimethyl-9H-xanthene-4,5-diyl) bis (diphenylphosphane) and 0.016 g of palladium acetate. The reaction mixture is refluxed for 5 hours, cooled to room temperature and filtered through Celite.
  • Step 4 To a solution of 0.04 g) of 4-carbamoyl-3 - [(4-frans-hydroxycyclohexyl) amino] phenyl ⁇ -9H-carbazol-4-yl) pyridin-2-yl] carbamate methylpropan-2-yl in 1 ml of dioxane are added 0.13 ml of 1N hydrochloric acid. The reaction mixture is heated at 100 ° C. in the microwave for 15 minutes and then concentrated under reduced pressure.
  • Example 15 The procedure is as in Example 15, but starting from 267 mg of 4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9-yl] -2- (4- 7 ⁇ -hydroxy-cyclohexylamino) -benzamide, which can be obtained as in Example 1, 175 mg of N-ferf-butoxycarbonyl-glycine, 61 mg of 4-dimethylaminopyridine and 192 mg of 1- (3-dimethylaminopropyl) hydrochloride. ) -3-ethylcarbodiimide in 50 mL of dichloromethane and 5 mL of dimethylformamide for 20 hours at 45 ° C.
  • Example 15 The procedure is as in Example 15, but starting from 534 mg of 4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9-yl] -2- (4- frans-hydroxy-cyclohexylamino) -benzamide, which can be obtained as in Example 1, 189 mg of N-tert-butoxycarbonyl-alanine, 122 mg of A-dimethylaminopyridine and 383.5 mg of 1- (3- dimethylaminopropyl) -3-ethylcarbodiimide in 50 ml of dichloromethane and 5 ml of dimethylformamide for 20 hours at 45 ° C.
  • Example 25 Synthesis of trifluoroacetate of 4-Frans- ⁇ 2-carbamoyl-5- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9-yl] -phenylamino ester - cyclohexyl of aminoacetic acid
  • Example 24 The procedure is as in Example 24, but starting with 400 mg of 4-frans- ⁇ 2-carbamoyl-5- [4 (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol ester) ester. 9-yl] -phenylamino ⁇ -cyclohexyl of teAf-butoxycarbonylaminoacetic acid, obtained in Example 21, in 10 ml of dichloromethane and 10 ml of trifluoroacetic acid, for 1.5 hours at 0 ° C.
  • Example 24 The procedure is as in Example 24, but starting from 300 mg of 4-frans- ⁇ 2-carbamoyl-5- [4 (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol ester 9-yl] phenylamino-cyclohexyl of 2 (S) -t-butoxycarbonylaminopropionic acid, obtained in Example 22, in 7.5 ml of dichloromethane and 10 ml of trifluoroacetic acid, for 2 hours at OC.
  • Example 27 Synthesis of 2 - [(4-trans-hydroxycyclohexyl) amino] -4- [4- (5-methoxypyridin-3-yl) -9H-carbazol-9-yl] benzamide.
  • Step 1 To a solution of 0.8 g of 4-trifluoromethanesulfonyloxycarbazole, obtained in step 1 of Example 1, in a mixture of 37 ml of dioxane and 12 ml of water, are added successively under argon, 0.54 g of (5-methoxypyridin-3-yl) boronic acid, 3.3 g of cesium carbonate and 93 mg of 1,1'-bis (diphenylphosphino) ferrocene palladium (II) dichloride in complex with the dichloromethane (1/1) [PdCl2 (dppf) CH2Cl2]. The reaction mixture is refluxed for 3.5 hours, filtered through Celite and concentrated under reduced pressure.
  • Step 3 To a solution of 0.3 g of 2-fluoro-4- [4- (5-methoxypyridin-3-yl) -9H-carbazol-9-yl] benzonitrile in 3.3 mL of dimethylsulfoxide is added successively 0.316 g of potassium carbonate and 1.75 g of A-frans-aminocyclohexanol. The reaction mixture is heated at 90 ° C. for
  • Step 1 To a solution of 0.8 g of 4-trifluoromethanesulfonyloxycarbazole, obtained in step 1 of Example 1, in a mixture of 37 ml of dioxane and 12 ml of water, are added successively under argon, 0.72 g of 2-cyano-5- (4,4,5,5-tetramethyl)
  • Step 2 To a solution of 0.24 g of 5- (9H-carbazol-4-yl) pyridine-2-carbonitrile in 10 ml of dioxane are successively added under argon, 0.267 g of 4-bromo-2-fluorobenzonitrile, 1.1 g of cesium carbonate, 0.06 g of (9,9-dimethyl-9H-xanthene-4,5-diyl) bis (diphenylphosphane) and 0.02 g of palladium acetate. The reaction mixture is refluxed for 3 hours, cooled to room temperature, filtered through Celite and concentrated under reduced pressure.
  • Step 3 To a solution of 0.2 g of 5- [9- (4-cyano-3-fluorophenyl) -9H-carbazol-4-yl] pyridine-2-carbonitrile in 2.2 mL of dimethylsulfoxide are added. 0.21 g of potassium carbonate and 1.2 g of 4-fransaminocyclohexanol were added successively. The reaction mixture is heated at 90 ° C. for 1 hour in the microwave, then 5.1 ml of ethanol are added, followed by 1 ml of a 1N solution of sodium hydroxide and 1 ml of 30% hydrogen peroxide. . The reaction mixture is stirred at room temperature for 5 minutes and then diluted with distilled water.
  • aqueous phase is extracted twice with ethyl acetate and the combined organic phases are washed with water, saturated sodium chloride solution, dried over magnesium sulfate and filtered.
  • the filtrate is concentrated under reduced pressure and the off-white solid obtained is purified by chromatography on silica gel, eluting with a mixture of dichloromethane, acetonitrile and methanol (92/4/4 by volume) and recrystallized from ethanol.
  • Step 1 To a solution of 0.8 g of 4-trifluoromethanesulfonyloxycarbazole, obtained in step 1 of Example 1, in a mixture of 37 ml of dioxane and 12 ml of water, are added successively under argon, 0.54 g of [6- (hydroxymethyl) pyridin-3- yl] boronic acid, 3.3 gde cesium carbonate and 93 mg of dichloride of 1, 1 * - Bis (diphenylphosphino) ferrocene palladium (II) complex with dichloromethane (1/1) The reaction mixture is refluxed for 5 hours, cooled to room temperature, and concentrated under reduced pressure.
  • Step 2 To a solution of 0.31 g of [5- (9H-carbazol-4-yl) pyridin-2-yl] methanol in 15 mL of dioxane is added successively under argon, 0.34 g of 4-bromo-2 1-fluorobenzonitrile, 1.4 g of cesium carbonate, 0.08 g of (9,9-dimethyl-9H-xanthene-4,5-diyl) bis (cinphenylphosphine) and 25 mg of palladium acetate. The reaction mixture is refluxed for 4 hours, cooled to room temperature, filtered through Celite and concentrated under reduced pressure.
  • Step 3 To a solution of 70 mg of 2-fluoro-4- ⁇ 4- [6- (hydroxymethyl) pyridin-3-yl] -9H-carbazol-9-yl ⁇ benzonitrile in 2 mL of dimethylsulfoxide is added successively. mg of potassium carbonate and 0.4 g of 4-frans-aminocyclohexanol. The reaction mixture is heated at 90 ° C. for 1 hour and a quarter in the microwave, then 1.8 ml of ethanol are added, followed by 0.35 ml of a 1N solution of sodium hydroxide and 0.35 ml of sodium hydroxide. hydrogen peroxide at 30%. The reaction mixture is stirred at room temperature for 40 minutes and then diluted with distilled water.
  • aqueous phase is extracted twice with ethyl acetate and the combined organic phases are washed with water, saturated sodium chloride solution, dried over magnesium sulfate and filtered.
  • the filtrate is concentrated under reduced pressure and the off-white solid obtained is purified by chromatography on silica gel, eluting with a mixture of dichloromethane, acetonitrile and methanol (90/5/5 by volume), and triturated in dichloromethane to give 0.13 g of 2 - [(4-trans-hydroxycyclohexyl) amino] -4- ⁇ 4- [6- (hydroxymethyl) pyridin-3-yl] -9H-carbazol-9- yljbenzamide, in the form of a white solid whose characteristics are as follows:
  • Step 1 The procedure is as in Step 3 of Example 2, but starting from
  • Step 1 In a 250 ml three-necked flask under argon atmosphere, 1 g of 4- (quinolin-3-yl) -9H-carbazole, obtained in step 2 of example 2, was dissolved in 75 ml. of dioxane, then 3,32 g of cesium carbonate and 1,019 g of 4-bromo-2-fluoro-benzonitrile are successively added.
  • the reaction medium is degassed by bubbling argon for 10 minutes, then 3.3 mg of palladium acetate and 236 mg of 4,5-bis (diphenylphosphino) -9,9-dimethylxanthene are successively added and the mixture is heated to reflux. while 2 hours under an argon atmosphere.
  • the reaction medium is filtered through Celite, concentrated under reduced pressure and taken up with 100 ml of water and 100 ml of ethyl acetate.
  • the organic phase is decanted and the aqueous phase is re-extracted twice with 50 ml of ethyl acetate.
  • the combined organic phases are washed with water, dried over magnesium sulphate and concentrated under reduced pressure.
  • the residue is purified by flash chromatography on 200 g of silica, eluting with dichloromethane.
  • Step 2 In a 100 ml three-necked flask, 584 mg of the compound obtained in the preceding step are dissolved in 20 ml of dimethylformamide and then 424 mg of 3-aminopropanol and 1.562 g of potassium carbonate are successively added. It is heated at 140 ° C. for 2 hours, then 100 ml of water and 100 ml of ethyl acetate are added. The aqueous phase is decanted, and then the organic phase is re-extracted twice with 50 ml of ethyl acetate. The combined organic phases are washed with water, dried over magnesium sulphate and concentrated to dryness under reduced pressure.
  • Step 3 Working as in step 4 of Example 2, but starting from 565 mg of the compound obtained in the preceding step, 2.41 mL of 1N solution of sodium hydroxide and 2.22 ml of 30% aqueous hydrogen peroxide solution, for 30 minutes at room temperature, in 15 ml of ethanol and 6.2 ml of dimethylsulfoxide, is obtained, after purification by flash chromatography on 70 g of silica eluting with a mixture of dichloromethane and methanol (95/5 by volume), 334 mg of 2- (3-hydroxypropyl) amino-4- [4- (quinoline) 3-yl) -9H-carbazol-9-yl] benzamide, in the form of a white powder, the characteristics of which are as follows:
  • Step 1 The procedure is as in Step 2 of Example 31, but starting from 150 mg of 2-fluoro- [4- (quinolin-3-yl) -9H-carbazol-9-yl] benzonitrile, obtained in step 2 of Example 31, 129 mg of 3-amino-butan-2-ol and 401 mg of potassium carbonate at 140 ° C. for 1 hour in 5 ml of dimethylformamide. After treatment and purification by flash- chromatography, under the conditions described in step 2 of Example 31, 149 mg of 2- (3-hydroxybutyl) amino- [4- (quinolin-3-yl) -9H-carbazol-9-yl) are obtained.
  • benzonitrile the characteristic of which is as follows:
  • Step 2 Using, as in step 4 of Example 2, but starting from 149 mg of the compound obtained in the preceding step, 0.62 ml of a 1N solution of sodium hydroxide and of 0.568 ml of a 30% aqueous solution of hydrogen peroxide, for 1 hour at room temperature, in 3.7 ml of ethanol and 1.57 ml of dimethylsulfoxide, is obtained, after purification by flash chromatography over 10 g of silica eluting with a mixture of dichloromethane and methanol (97/3 by volume), 106 mg of 2- (3-hydroxybutyl) amino-4- [4- (quinolin-3-yl) -9H-carbazol). 9-yl] benzamide, in the form of a white powder whose characteristics are as follows:
  • Example 33 Synthesis of 2- (3-methoxypropyl) amino-4- [4- (quinolin-3-yl) -9H-carbazol-9-yl] benzamide.
  • Step 1 The procedure is as in Step 3 of Example 3, but starting from
  • Step 2 Proceeding as in Step 4 of Example 2, but starting from 190 mg of the compound obtained in the preceding step, 0.787 ml of a 1N solution of sodium hydroxide and 0.724 ml of 30% aqueous solution of hydrogen peroxide, for 1 hour at room temperature, in 4.8 ml of ethanol and 2 ml of dimethylsulfoxide, is obtained after purification by flash chromatography on 15 g of silica, eluting with with a mixture of ethyl acetate and heptane (60/40 by volume), 113 mg of 2- (3-methoxypropyl) amino-4- [4- (quinolin-3-yl) -9H-carbazol) 9-yl] benzamide, in the form of a white powder whose characteristics are as follows:
  • Step 2 By operating as in step 4 of Example 2, but starting from 160 mg of the crude compound obtained in the preceding step, 0.665 ml of a 1 N solution of sodium hydroxide and 0 61 ml of a 30% aqueous solution of hydrogen peroxide for 1 hour at room temperature in 4 ml of ethanol and 2 ml of dimethylsulfoxide are obtained after purification by flash chromatography on silica (10 g).
  • Example 35 Synthesis of 2 (R, S) - (1-hydroxy-propan-2-yl) amino-4- [4- (quinolin-3-yl) -9H-carbazol-9-yl] benzamide.
  • the reaction medium is poured onto a mixture of 50 ml of water and 50 ml of ethyl acetate.
  • the organic phase is decanted and the aqueous phase is re-extracted twice with 25 ml of acetate acid ethyl ester.
  • the combined organic phases are washed with water, dried over sodium sulphate and concentrated to dryness under reduced pressure.
  • the residue is purified by flash chromatography on 70 g of silica eluting with a mixture of dichloromethane and ethanol (95/5 by volume). 115 mg of, in the form of a beige powder are obtained, the characteristics of which are as follows:
  • Example 36 Synthesis of trifluoroacetate of 4-Frans- ⁇ 2-carbamoyl-5- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9-yl] -phenylamino ester - cyclohexyl of (S) -2,6-diamino-hexanoic acid
  • Step 1 In a tricolor of 250 ml, under an argon atmosphere, 534 mg of 4- [4- (6-fluoro-1H-benzimidazol-2-yl) -carbazol-9-yl] -2- are dissolved. (4-hydroxy-cyclohexylamino) -benzamide, which can be obtained as in Example 1, and 258.5 mg of 2,6-bis-N, N'-tert-butoxycarbonyl-lysine in 50 ml of dichloromethane and 10 ml of dimethylformamide. 0.349 ml of N, N-diisopropylethylamine, 244.3 mg of 4-dimethylaminopyridine and 656 mg of
  • Step 2 In a 50 ml monocolumn flask, 687 mg of the compound obtained in the previous step are dissolved in 20 ml of dichloromethane. The solution obtained is cooled to 0 ° C., then 10 ml of trifluoroacetic acid are added and the mixture is stirred at 0 ° C. for 30 minutes and then at room temperature for 1 hour. The reaction medium is concentrated under reduced pressure. The residue is then taken up with 5 mL of diisopropyl ether. After stirring for 30 minutes at 0 ° C., the precipitate formed is drained, washed twice with 5 ml of diisopropyl ether and dried for 4 hours in a vacuum oven at 50 ° C.
  • Step 3 of Example 3 The procedure is as in Step 3 of Example 3, but starting from 300 mg of 2-fluoro-4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9- yl] benzonitrile, obtained according to step 2 of example 3, 296 mg of potassium carbonate and 1.273 g of 4-amino-2-butan-2 (RS) -ol in 3 ml of dimethylsulfoxide. Then 1.357 ml of a 1M aqueous solution of sodium hydroxide, 1.313 ml of a 30% aqueous solution of hydrogen peroxide and 7 ml of ethanol are added to the reaction medium.
  • RS 4-amino-2-butan-2
  • Example 38 Synthesis of 4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9-yl] -2- (3-methoxy-propylamino) -benzamide.
  • Step 3 of Example 3 The procedure is as in Step 3 of Example 3, but starting from 300 mg of 2-fluoro-4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9 -yl] benzonitrile, obtained according to step 2 of Example 3, 296 mg of potassium carbonate and 1.273 g of 3-methoxypropylamine in 3 ml of dimethylsulfoxide. Then 1.357 ml of a 1M aqueous solution of sodium hydroxide, 1.31 ml of a 30% aqueous solution of hydrogen peroxide and 7 ml of ethanol are added to the reaction medium.
  • Example 40 Synthesis of 4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9-yl] -2- (2 (RS) -hydroxypropylamino) -benzamide.
  • Step 3 of Example 3 The procedure is as in Step 3 of Example 3, but starting from 300 mg of 2-fluoro-4- [4- (6-fluoro-1H-benzimidazol-2-yl) -carbazol-9-yl). ] -benzonitrile, obtained according to step 2 of Example 3, 296 mg of potassium carbonate and 1.073 g of 1-amino-2 (RS) -propanol in 3 ml of dimethylsulfoxide. Then 1.357 ml of a 1M aqueous solution of sodium hydroxide, 1.31 ml of a 30% aqueous solution of hydrogen peroxide and 7 ml of ethanol are added to the reaction medium.
  • RS 1-amino-2
  • Step 1 The procedure is as in Step 2 of Example 31, but starting from 206 mg of 2-fluoro [4- (quinolin-3-yl) -9H-carbazol-9-yl] benzonitrile, obtained in Step 1 of Example 31, 177 mg) of 3 (RS) -amino-butan-1-ol and 551 mg of potassium carbonate at 140 ° C. for 3 hours in 7 ml of dimethylformamide.
  • Step 2 Proceed as in Step 4 of Example 2, but starting from 110 mg of the crude compound obtained in the previous step, 0.456 ml of a 1N solution of sodium hydroxide and 0.419 ml of sodium hydroxide. a 30% aqueous solution of hydrogen peroxide, for 1 hour at room temperature, in 2.8 ml of ethanol and 1.2 ml of dimethylsulfoxide, is obtained after purification by flash chromatography on 10 g of silica eluting with a mixture of ethyl acetate and heptane (90/10 by volume), 33 mg of 2- [1-hydroxy-butan-3 (RS) -ylamino] -4- [4- ( quinolin-3-yl) -9H-carbazol-9-yl] benzamide, in the form of a white powder whose characteristics are as follows:
  • Example 42 Synthesis of 4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9-yl] -2- (2-hydroxyethylamino) benzamide.
  • Step 3 of Example 3 The procedure is as in Step 3 of Example 3, but starting from 300 mg of 2-fluoro-4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9 -yl] benzonitrile, obtained according to step 2 of Example 3, 296 mg of potassium carbonate and 0.872 g of 2-aminoethanol in 3 ml of dimethylsulfoxide.
  • Example 43 Synthesis of 2- (2-dimethylaminoethylamino) -4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9-yl] benzamide.
  • Step 3 of Example 3 The procedure is as in Step 3 of Example 3, but starting from 300 mg of 2-fluoro-4- [4- (6-fluoro-1H-benzimidazol-2-yl) -carbazol-9-yl). ] -benzonitrile, obtained according to step 2 of Example 3, 296 mg of potassium carbonate and 1.259 g of N, N-dimethylethylenediamine in 3 ml of dimethylsulfoxide. Then 1.357 ml of a 1M aqueous solution of sodium hydroxide, 1.31 ml of a 30% aqueous solution of hydrogen peroxide and 7 ml of ethanol are added to the reaction medium.
  • Example 44 Synthesis of 4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9-yl] -2- (methylcarbamoylmethylamino) -benzamide.
  • Step 3 of Example 3 The procedure is as in Step 3 of Example 3, but starting from 300 mg of 2-fluoro-4- [4- (6-fluoro-1H-benzimidazol-2-yl) -carbazol-9-yl). ] -benzonitrile, obtained according to step 2 of Example 3, 296 mg of potassium carbonate, 1 g of N-methylglycine hydrochloride and 820 mg of triethylamine in 3 ml of dimethylsulfoxide. Then 1.357 ml of a 1M aqueous solution of sodium hydroxide, 1.31 ml of a 30% aqueous solution of hydrogen peroxide and 7 ml of ethanol are added to the reaction medium.
  • Example 45 Synthesis of 2- [2- (1-oxy-pyrrolidin-1-yl) -ethylamino] -4- [4- (quinolin-3-yl) -9H-carbazol-9-yl] benzamide.
  • Step 1 The procedure is as in Step 2 of Example 31, but starting from 230 mg of 2-fluoro [4- (quinolin-3-yl) -9H-carbazol-9-yl] benzonitrile, obtained in step 1 of Example 31, 254 mg of N- (2-aminoethyl) pyrrolidine and 615 mg of potassium carbonate at 140 ° C. for 3 hours in 7 ml of dimethylformamide. After treatment, as in step 2 of Example 31, 273 mg of a mixture containing predominantly 2- [2- (pyrrolidin-1-yl) -ethylamino] -4- [4- (quinolin-3) are obtained.
  • Step 2 Using, as in step 4 of Example 2, but starting from 273 mg of the crude compound obtained in the preceding step, 1. 076 ml of a 1 N solution of sodium hydroxide and of 0.998 ml of a 30% aqueous solution of hydrogen peroxide, for 1 hour at room temperature, in 2.8 ml of ethanol and 1.2 ml of dimethylsulfoxide, is obtained, after purification by flash chromatography on g of silica eluting with a mixture of dichloromethane, methanol and a 5M aqueous solution of ammonia (90/10/1 by volume), 126 mg of 2- [2- (1-oxy-pyrrolidin-1) yl) -ethylamino] -4- [4- (quinolin-3-yl) -9H-carbazol-9-yl] benzamide, in the form of a light beige powder, the characteristics of which are as follows: 1 H NMR Spectrum (400 MHz, DMSO-d6, ⁇
  • Example 46 Synthesis of 2- (2-Ethoxy-ethylamino) -4- [4- (6-fluoro-1H-benzimidazol-2-yl) -9H-carbazol-9-yl] -benzamide.
  • Step 3 of Example 3 The procedure is as in Step 3 of Example 3, but starting from 300 mg of 2-fluoro-4- [4- (6-fluoro-1H-benzimidazol-2-yl) -carbazol-9-yl). ] -benzonitrile, obtained according to step 2 of Example 3, 296 mg of potassium carbonate and 1.273 g of 2-ethoxyethylamine in 3 ml of dimethylsulfoxide. Then 1.357 ml of a 1M aqueous solution of sodium hydroxide, 1.31 ml of a 30% aqueous solution of hydrogen peroxide and 7 ml of ethanol are added to the reaction medium.

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EP09728587A 2008-03-14 2009-03-13 Nouveaux derives de carbazole inhibiteurs d' hsp90, compositions les contenant et utilisation Withdrawn EP2265598A2 (fr)

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