WO2006090052A1 - Nouveaux derives de 3-aryl-1 ,2-benzisoxazole, compositions les contenant et leur utilisation - Google Patents
Nouveaux derives de 3-aryl-1 ,2-benzisoxazole, compositions les contenant et leur utilisation Download PDFInfo
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- WO2006090052A1 WO2006090052A1 PCT/FR2006/000375 FR2006000375W WO2006090052A1 WO 2006090052 A1 WO2006090052 A1 WO 2006090052A1 FR 2006000375 W FR2006000375 W FR 2006000375W WO 2006090052 A1 WO2006090052 A1 WO 2006090052A1
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- 0 *c(c(*)c1C(C(****2)=C2O*)=O)c(*)c(*)c1O Chemical compound *c(c(*)c1C(C(****2)=C2O*)=O)c(*)c(*)c1O 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
- C07D261/20—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings condensed with carbocyclic rings or ring systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/42—Oxazoles
- A61K31/423—Oxazoles condensed with carbocyclic rings
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
- A61P35/02—Antineoplastic agents specific for leukemia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
- A61P35/04—Antineoplastic agents specific for metastasis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
Definitions
- the present invention relates to novel chemical compounds, particularly novel 3-aryl-1,2-benzisoxazole derivatives, compositions containing them, and their use as medicaments.
- the invention relates, according to a first aspect, to new benzisoxazole derivatives exhibiting anticancer activity, and in particular to an inhibitory activity of the chaperone Hsp90 protein, and even more particularly via the inhibition of the catalytic activity of the type. ATPase of the chaperone protein Hsp90.
- Hsp27, Hsp70, Hsp90 The molecular chaperones of the "Heat Schock Proteins” (HSPs) family, classified according to their molecular weight (Hsp27, Hsp70, Hsp90 7), are key elements of the balance between the synthesis and the degradation of cellular proteins. , responsible for the correct folding of proteins. They
- 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, Oxford University Press 2001).
- the Hsp90 chaperone which represents 1 to 2% of the protein content of the cell, has recently been identified as a particularly promising target in cancer therapy (see for review: Moloney Ar and
- VEGF-R an ability to activate angiogenesis: VEGF-R, FAK, HIF-1, Akt ...
- steroid hormone receptors such as the estrogen receptor or the androgen receptor, are also of great interest in the context of anticancer therapies.
- Hsp90 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 the client proteins mainly depends on the nature of the Hsp70 / Hsp40, Hop ⁇ O co-chaperones, etc. of the nature of the ADP or ATP nucleotide linked to the N-terminal domain of Hsp 90.
- 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)
- Radicicol (4) is also a naturally occurring Hsp 90 inhibitor (Roe SM 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 with respect to nucleophiles suffer 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)
- 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.
- a depsipeptide named Pipalamycin or ICM 01 has recently been described as a noncompetitive inhibitor of the ATP site of Hsp0O (J. Pharmacol Exp Ther (2004), 370, 1288-1295).
- Purines such as PU3 compounds (11) (Chiosis et al., Chem Biol. (2001), 8, 289-299) and PU24FC1 (12) (Chiosis et al, Curr Cane, Drug Targets (2003), 3). , 371-376) have also been described as Hsp90 inhibitors.
- Patent application WO2004 / 072080 claims a family of 8-heteroaryl-6-phenylimidazo [1,2-a] pyrazines as modulators of hsp90 activity.
- the patent application WO2004 / 096212 claims a third family of pyrazoles useful for treating pathologies related to the inhibition of "Heat Shock Proteins" such as the Hsp90 chaperone.
- the patent application WO2005 / 00300 more generally claims 5-membered heterocycles, substituted by aryl radicals, useful for treating pathologies related to the inhibition of "Heat Shock Proteins” such as the Hsp90 chaperone.
- patent application WO2005 / 00778 claims a family of benzophenone derivatives as HsP90 inhibitors, useful for the treatment of tumors.
- the present invention thus relates to 3-aryl-1,2-benzisoxazole derivatives corresponding to the following general formula (I):
- A1 and A2 which are identical or different, represent CH or N;
- X is CRa or N;
- Y is CRb or N;
- R 1 , R 2 , R 3 and R 4, which may be identical or different, are chosen from hydrogen or halogen atoms, cyano, nitro, trifluoromethyl, OR 5 , SR 5 , NR 5 R 6 and C (O) radicals;
- Ra represents a halogen atom, a hydroxyl radical or a nitro radical when Rb is a hydrogen atom; Ra represents a hydrogen or halogen atom, a hydroxyl, methyl or ethyl or alkoxy or hydroxymethyl or nitro or carboxy or cyano radical when Rb is different from a hydrogen atom; Rb represents a hydrogen atom, halogen, cyano or nitro or trifluoromethyl or a (C1-C3-alkyl) NW- (C1-C3alkyl) m R 5;
- R 5 and Re are independently selected from hydrogen, alkyl, alkenyl, alkynyl, aryl or heteroaryl, aralkyl or heteroaralkyl radicals; it being understood that the alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl radicals may be substituted;
- n and m are independently selected from 0 and 1;
- W is selected from the group consisting of a single bond, oxygen or sulfur atoms, C1-C3-alkyl, C1-C3-alkenyl, C1-C3-alkenyl, C3-C7-cycloalkyl, C3-C7 heterocycloalkyl, aryl, heteroaryl, NH,
- -CH N-, N- (C 1 -C 3 -alkyl), C (O), C (O) -O, C (O) -NH, C (O) -N (C 1 -C 3 -alkyl), O -
- C3-alkyl) -O S (O) -NH, S (O) 2 -NH, S (O) -N (C1-C3-alkyl), S (O) 2-N (C1-C3-alkyl) , NH-S (O), NH-S (O) 2, N (C1-C3-alkyl) -S (O), N (C1-C3-alkyl) -S (O) 2,
- the present invention thus relates to 3-aryl-1,2-benzisoxazole derivatives corresponding to the following general formula (I):
- X is CRa or N
- Y is CRb or N
- R 1, R 2 , R 3 and R 4, which may be identical or different, are chosen from hydrogen or halogen atoms, cyano, nitro, trifluoromethyl, OR 5 , SR 5 , NR 5 R 6 and C (O) R radicals; 5 , C (O) OR 5 , C (O) NR 5 R 6 , S (O) R 5 , S (O) 2 R 5 , S (O) NR 5 R 6 , S (O) 2 NR 5 R 6 , NR 6 C (O) R 5 , NR 6 C (O) OR 5 , alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl; it being understood that the alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl radicals are optionally substituted;
- Ra represents a halogen atom, a hydroxyl radical or a nitro radical when Rb is a hydrogen atom;
- Ra represents a hydrogen or halogen atom, a hydroxyl, methyl or ethyl or methoxy or hydroxymethyl or nitro or carboxy or cyano radical when Rb is different from a hydrogen atom;
- Rb represents a hydrogen or halogen atom or cyano or nitro or trifluoromethyl radical or a (C1-C3-alkyl) n-W- (C1-C3alkyl) n radical;
- R 5 and R 6 are independently selected from hydrogen, alkyl, alkenyl, alkynyl, aryl or heteroaryl, aralkyl or heteroaralkyl radicals; it being understood that the alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl radicals may be substituted;
- n and m are independently selected from O and 1;
- W is selected from the group consisting of a single bond, oxygen or sulfur atoms, C1-C3-alkyl, C2-C3-alkenyl, C2-C3-alkynyl, C3-C7-cycloalkyl, C3-C7 heterocycloalkyl, aryl, heteroaryl, NH, N- (C 1 -C 3 -alkyl), C (O), C (O) -O, C (O) -NH, C (O) -N (C 1 -C 3 -alkyl) ), OC (O), O- (O) -NH, NH-C (O), NH-C (O) -O, N (C1-C3-alkyl) -C (O), NH-O, N (C1-C3-alkyl) -O, S (O) -NH, S (O) 2 -NH, S (O) -N (-C1-C3-alkyl), S (O
- any of the radicals R 1, R 2 , R 3 and R 4 represent a hydroxyl radical; such compounds being described, as antiestrogenic agents with antineoplastic activity, in US 2003 207927, or as selective ligands for the ER ⁇ estrogen receptor in J. Med Chem. 2004, 47 (21), 5021-40;
- R 3 represents a derivative of 4 (3H) -pyrimidinone or thione; such compounds being described, as herbicides, in various patents including EP 908457;
- halogen denotes fluorine, chlorine, bromine or iodine atoms and preferably 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.
- alkenyl radical denotes a linear or branched radical containing at most 12 carbon atoms and preferably 4 carbon atoms chosen, for example, from the following values: ethenyl or vinyl, propenyl or allyl, 1-propenyl, n-butenyl, i-propenyl, butenyl, 3-methylbut-2-enyl, n-pentenyl, hexenyl, heptenyl, octenyl, cyclohexylbutenyl and decenyl, as well as their linear or branched positional isomers.
- alkenyl values allyl or butenyl values are more particularly mentioned.
- alkynyl radical denotes a linear or branched radical containing at most 12 carbon atoms and preferably 4 carbon atoms chosen for example from the following values: ethynyl, propynyl or propargyl, butynyl, n-butynyl, i-butynyl, 3-methylbut-2-ynyl, pentynyl or hexynyl, as well as their linear or branched positional isomers.
- the propargyl value is more particularly mentioned.
- alkoxy radical which may for example represent OR5
- 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 or linear butoxy, secondary radicals; or tertiary, pentoxy, hexoxy and heptoxy and their linear or branched isomers of position,
- alkylthio or alkyl-S- which may for example represent SR5
- radicals containing a sulfur atom the sulfur atom can be oxidized to an SO or S (O) 2 radical.
- 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, cycloalkyl, heterocycloalkyl or aryl radical, 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;
- 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 the acyl-O- radicals in which acyl has the meaning indicated above; for example, acetoxy or propionyloxy radicals are mentioned.
- 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: the phenyl radical is more particularly mentioned.
- 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 carbocyclic (heterocycloalkyl) or unsaturated (heteroaryl) radical consisting of at most 6 members interrupted by one or more heteroatoms, which may be identical or different, chosen from oxygen, nitrogen or sulfur atoms.
- heterocycloalkyl radicals there may be mentioned especially the dioxolane, dioxane, dithiolane, thiooxolane, thiooxane, oxiranyl, oxolanyl, dioxolanyl, piperazinyl, piperidinyl, pyrrolidinyl, imidazolidinyl, pyrazolidinyl, morpholinyl or tetrahydrofuryl, tetrahydrothienyl, chromanyl, dihydrobenzofuranyl, indolinyl, piperidinyl radicals. , perhydropyranyl, pyrindolinyl, tetrahydroquinolinyl, tetrahydroisoquinolinyl or thioazolidinyl, all of these radicals being optionally substituted.
- heterocycloalkyl radicals mention may in particular be made of optionally substituted piperazinyl, optionally substituted piperidinyl, optionally substituted pyrrolidinyl, imidazolidinyl, pyrazolidinyl, morpholinyl or thioazolidinyl radicals.
- heterocycloalkylalkyl radical is meant radicals in which the heterocycloalkyl and alkyl radicals have the above meanings
- furyl radicals such as 2-furyl and thienyl such as 2-thienyl and 3-thienyl or pyrrolyl, diazolyl, thiazolyl, thiadiazolyl, thiatriazolyl, isothiazolyl, oxazolyl, oxadiazolyl, 3- or 4-isoxazolyl, imidazolyl, pyrazolyl, isoxazolyl.
- 6-membered heteroaryl radicals such as 2-pyridyl, 3-pyridyl and 4-pyridyl, pyrimidyl, pyrimidinyl, pyridazinyl, pyrazinyl and tetrazolyl.
- heteroaryl radicals containing at least one heteroatom selected from sulfur, nitrogen and oxygen mention may be made, for example, of benzothienyl such as 3-benzothienyl, benzofuryl, benzofuranyl, benzopyrrolyl, benzimidazolyl, benzoxazolyl, thionaphthyl, indolyl, and purinyl. , quinolinyl, isoquinolinyl and naphthyridinyl.
- fused heteroaryl radicals mention may be made more particularly of benzothienyl, benzofuranyl, indolyl or quinolinyl, benzimidazolyl, benzothiazolyl, furyl, imidazolyl, indolizinyl, isoxazolyl, isoquinolinyl, isothiazolyl, oxadiazolyl, pyrazinyl, pyridazinyl, pyrazolyl, pyridyl, pyrimidinyl and pyrrolyl radicals. , quinazolinyl, 1,3,4-thiadiazolyl, thiazolyl, thienyl and triazolyl groups, these radicals being optionally substituted as indicated for the heteroaryl radicals.
- cyclic amine which may for example represent NR 5 R 6, denotes a cycloalkyl radical containing from 3 to 8 members in which a carbon atom is replaced by a nitrogen atom, the cycloalkyl radical having the meaning indicated above and capable of also include one or more other heteroatoms selected from O, S, SO2, N or NR7 with R7 as defined above, examples of such cyclic amines include, for example, pyrrolidinyl, piperidinyl, morpholinyl, piperazinyl and indolinyl radicals; , pyrindolinyl or tetrahydroquinolinyl.
- patient refers to humans but also other mammals.
- Prodrug refers to a product that can be converted 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 in vivo hydrolysis 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.
- 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 alkylated nitrogen atom or else 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 may be substituted by radicals chosen for example from halogen atoms, hydroxyl, alkoxy, acyl, acyloxy, alkylthio, amino or aryl radicals, for example in chloromethyl, hydroxypropyl, methoxymethyl, propionyloxymethyl, methylthiomethyl, dimethylaminoethyl, benzyl or phenethyl groups.
- 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; alkyloxycarbonyloxyalkyl 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.
- carboxy amidated is meant, for example, the radicals of the type -CONR5R6 in which R5 and R6 have the meanings indicated above.
- alkylamino radical is meant 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 linear or branched methylamino, ethylamino, propylamino or butylamino radicals.
- dialkylamino radical is meant radicals in which the identical or different alkyl radicals are chosen from the alkyl radicals mentioned above.
- alkyl radicals having at most 4 carbon atoms are preferred, and for example linear or branched dimethylamino, diethylamino or methylethylamino radicals may be mentioned.
- the radicals NR 5 R 6 may also represent a heterocycle which may or may not comprise an additional heteroatom. Mention may be made of pyrrolyl, imidazolyl, indolyl, piperidinyl, morpholinyl and piperazinyl radicals. Piperidinyl, morpholinyl or piperazinyl radicals are preferred.
- 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 mineral or organic acids of the products of formula (I) may be, for example, the salts formed with hydrochloric, hydrobromic, hydroiodic, nitric, sulfuric, phosphoric, propionic, acetic or trifluoroacetic acids, formic, benzoic, maleic, fumaric, succinic, tartaric, citric, oxalic, glyoxylic, aspartic, ascorbic, alkylmonosulfonic acids such as, for example, methanesulfonic acid, ethanesulfonic acid, propanesulfonic acid, alkyl-disulfonic acids such as methanedisulfonic acid, alpha, beta-ethanedisulfonic acid, arylmonosulfonic acids such as benzenesulphonic acid and aryldisulphonic acids.
- hydrochloric hydrobromic, hydroiodic, nitric, sulfuric, phosphoric, propi
- 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 A1 and A2, which are identical or different, represent CH or N;
- X is CRa or N;
- Y is CRb or N;
- R 1 and R 2, R 3 and R 4, which may be identical or different, are chosen from hydrogen or halogen atoms, cyano, nitro, trifluoromethyl, OR 5 , SR 5 , NR 5 R 6 and C (O) R radicals; 5 , C (O) OR 5 , C (O) NR 5 R 6 , S (O) 2 NR 5 R 6 , NR 6 C (O) R 5 , NR 6 C (O) OR 5 , alkyl, aryl, heteroaryls, aralkyls or heteroaralkyls; it being understood that the alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl radicals are optionally substituted;
- Ra represents a halogen atom, a hydroxyl radical, alkoxy radical or a nitro radical
- Rb represents a hydrogen or halogen atom or a (C1-C3-alkyl) n-W- (C1-C3alkyl) m-R5 radical;
- R5 and R6 are independently selected from hydrogen, alkyl, alkenyl, alkynyl, aryl or heteroaryl, aralkyl or heteroaralkyl radicals; it being understood that the alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl radicals are optionally substituted; n and m are independently selected from O and 1;
- the present invention thus relates in particular to the products of formula (I) as defined above in which
- X is CRa or N
- Y is CRb or N
- R 1, R 2 , R 3 and R 4, which may be identical or different, are chosen from hydrogen or halogen atoms, cyano, nitro, trifluoromethyl, OR 5 , SR 5 , NR 5 R 6 and C (O) R radicals; 5 , C (O) OR 5 , C (O) NR 5 R 6 , S (O) 2 NR 5 R 6 , NR 6 C (O) R 5 , NR 6 C (O) OR 5 , alkyl, aryl, heteroaryls, aralkyls or heteroaralkyls; it being understood that the alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl radicals are optionally substituted;
- Ra represents a halogen atom, a hydroxyl radical or a nitro radical
- Rb represents a hydrogen or halogen atom or a (C1- C3alkyl) NW- (C1-C3alkyl) m R 5;
- R 5 and R 6 are independently selected from hydrogen, alkyl, alkenyl, alkynyl, aryl or heteroaryl, aralkyl or heteroaralkyl radicals; it being understood that the alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl radicals are optionally substituted;
- n and m are independently selected from 0 and 1;
- W is selected from the group consisting of a single bond, oxygen atoms, C1-C3-alkyl, C2-C3-alkenyl, C3-C7-heterocycloalkyl, aryl, heteroaryl, NH, N- (CI-C3) radicals.
- the present invention thus relates in particular to the products of formula (I) as defined above in which A1 and A2, which are identical or different, represent CH or N;
- X is CRa or N;
- Y is CRb or N;
- R 1, R 2, R 3 and R 4 which are identical or different, are chosen from hydrogen and halogen atoms and OR 5 radicals;
- Ra represents a halogen atom or a hydroxyl or alkoxy radical;
- Rb represents a hydrogen or halogen atom or a (C1-C3-alkyl) n-W-R5 radical
- R5 is selected from alkyl, aralkyl, aryl or heteroaralkyl radicals, all optionally substituted; W represents a single bond, C (O), C (O) -O, or C (O) -NH; NH or -
- the present invention thus relates in particular to the products of formula (I) as defined above in which
- X is CRa or N;
- Y is CRb or N;
- R 1, R 2 , R 3 and R 4 which are identical or different, are chosen from hydrogen and halogen atoms and OR 5 radicals;
- Ra represents a halogen atom or a hydroxyl radical
- Rb represents a hydrogen or halogen atom or a radical W-
- R 5 is selected from alkyl, aralkyl or heteroaralkyl radicals, all optionally substituted;
- W represents C (O), C (O) -O, or C (O) -NH;
- the present invention thus relates in particular to the products of formula (I) as defined above in which A1 and A2 represent CH, the other substituents X, Y, R1, R2, R3 and R4 of said products of formula (I) having the values defined in any one of the preceding claims,
- the alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl radicals may be optionally substituted with one or more radicals, which may be identical or different, chosen from halogen atoms; hydroxyl radicals; cycloalkyl containing at most 6 members; acyl having not more than 7 carbon atoms; cyano; nitro; free, salified or esterified carboxy; tetrazolyl; -NH2, -NH (alk), -N (alk) (alk); SO2-NH-CO-NH-alkyl; SO2-NH-CO-NH-phenyl; -C (O) -NH2; -C (O) -NH (alk); -CO)- N (alk) (alk), -NH-C (OMaIk), -N (alk) -C (O) - (alk); thien
- the alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl radicals may be optionally substituted with one or more radicals, which may be identical or different. chosen from halogen atoms; hydroxyl radicals; free, salified or esterified carboxy; -NH2, -NH (alk), -N (alk) (alk); phenyl, alkyl and alkoxy themselves optionally substituted by one or more radicals selected from halogen atoms and hydroxyl, alkoxy, alkyl, -NH2, -NH (alk) and -N (alk) (alk) radicals.
- the alkyl, alkenyl, alkynyl, aryl, heteroaryl, aralkyl or heteroaralkyl radicals may be optionally substituted by one or more radicals, which are identical or different, chosen from halogen atoms and hydroxyl and alkoxy radicals.
- the subject of the present invention is in particular the products of formula (I) above in which X represents CRa with Ra represents a hydroxyl or methoxy radical, the substituent substituents A1, A2, Y, R1, R2, R3 and R4 of said products. of formula (I) being selected from any one of the above definitions,
- the subject of the present invention is in particular the products of formula (I) above in which X represents CRa with Ra represents a hydroxyl radical, the substituent substituents A1, A2, Y, R1, R2, R3 and R4 of said products of formula ( I) being selected from any one of the above definitions, said products of formula (I) being in all isomeric forms possible racemic, enantiomers and diastereoisomers, as well as the addition salts with mineral and organic acids or with the inorganic and organic bases of said products of formula (I).
- A1 and A2 represent CH
- X represents CRa with Ra represents a hydroxyl or methoxy radical
- Y represents CRb with Rb represents a hydrogen or bromine atom, or a - (CH3) nW-R5 radical with R5 chosen from alkyl, phenyl or phenylalkyl radicals optionally substituted with one or more radicals chosen from halogen atoms; and the alkyl radicals,
- A1 and A2 represent CH
- X represents CRa with Ra represents a hydroxyl radical
- Y represents CRb with Rb represents a hydrogen or bromine atom, or a radical -W-R5 with R5 chosen from optionally substituted alkyl or phenylalkyl radicals,
- R1, R2, R3 and R4 represent a hydrogen atom; W having the meaning indicated above, said products of formula (I) being in all isomeric forms possible racemic, enantiomers and diastereoisomers, as well as the addition salts with mineral and organic acids or with the inorganic and organic bases of said products of formula (I).
- the subject of the present invention is in particular the products of formula (I) above in which Y represents CRb with Rb represents a hydrogen or bromine atom, the other substituents A1, A2, X, R1, R2, R3 and R4. said products of formula (I) being selected from any one of the above definitions,
- the subject of the present invention is in particular the products of formula (I) above in which A1 and A2 represent CH,
- X represents CRa with Ra represents a hydroxyl radical
- Y is CRb with Rb is hydrogen or bromine
- R1, R2, R3 and R4 represent a hydrogen atom
- said product of formula (I) being in all isomeric forms possible racemic, enantiomers and diastereoisomers, as well as the addition salts with mineral and organic acids or with the inorganic and organic bases of said product of formula (I).
- the invention also relates to processes for the preparation of products of formula (I) as defined above.
- products of general formula (I) according to the invention can be prepared according to the various methods described by K. H. W ⁇ nsch and A. J. Boulton in Advances in Heterocyclic Chemistry. 8, 277-302.
- products of general formula (I) according to the invention may advantageously be prepared by at least one of the six general methods of synthesis below.
- a first general method of synthesis involves as a key step the formation of the 1,2-benzisoxazole ring by closing between the oxygen atom 1 and the carbon atom 7a; in particular by cyclization of ortho-halo or ortho-nitrobenzoyloximes according to general scheme 1, using the methods described in J. Med. Chem. (1982), 25, 36.
- Diagram 1 A first general method of synthesis involves as a key step the formation of the 1,2-benzisoxazole ring by closing between the oxygen atom 1 and the carbon atom 7a; in particular by cyclization of ortho-halo or ortho-nitrobenzoyloximes according to general scheme 1, using the methods described in J. Med. Chem. (1982), 25, 36. Diagram 1
- a second general method of synthesis involves as a key step the formation of the 1,2-benzisoxazole ring by closing between the oxygen atom at 1 and the nitrogen atom at 2; in particular by cyclization of activated derivatives of ortho-hydroxybenzoyloximes, such as acetates or sulfonates, according to the general scheme 2, using in particular the methods described in J. Med. Chem. (1982), 25, 36.
- a third general method of synthesis involves, as a key step, the formation of the 1,2-benzisoxazole ring by simultaneous creation of the bonds between the oxygen atom 1 and the carbon atom 7a on the one hand and the carbon atoms 3 and 3a on the other hand; particularly by reaction of a benzine with a nitrile oxide according to the general scheme 3, using the methods described in Adv. Heterocycl. Chem. 1967, 8, 277 or Adv. Heterocycl. Chem. 1981, 29, 1.
- a fourth general method of synthesis involves, as a key step, the formation of the 1,2-benzisoxazole ring by closing between the 2-nitrogen atom and the 3-carbon atom; in particular by transoximation followed by cyclization of 2 - [(isopropylideneamino) oxy] benzophenones according to general scheme 4; using in particular the method described in J. Org. Chem.
- a fifth general method of synthesis involves as a key step a coupling reaction between a 3-halo-1,2-benzisoxazole and an "organometallic" derivative of aryl or heteroaryl; in particular, according to the general scheme 5, a Suzuki coupling reaction, catalyzed by a palladium (O) complex, between a 3-bromo-1, 2-benzisoxazole and an acid Arylboronic suitably chosen, operating for example according to Synth. Common. 1981, 11, 513.
- organometallic derivatives of the aryl- or heteroaryl-aromatic compounds are either commercial, or prepared as described in the literature, or prepared according to the general methods known to those skilled in the art.
- the 3-halo-1,2-benzisoxazole compounds are either commercially available, or prepared as described in the literature, or prepared according to the general methods known to those skilled in the art.
- a sixth general method of synthesis that is particularly advantageous in the context of the invention consists in substituting either the aryl ring or the 1,2-benzisoxazole ring after the formation of a suitably selected 3-aryl-1,2-benzisoxazole compound. to modify the nature of the substituents either of the aryl ring or of the 1,2-benzisoxazole ring according to the general methods known to those skilled in the art, in particular those described in:
- R 1, R 2 , R 3 and R 4 all represent a hydrogen atom
- radicals R 1 , R 2 , R 3 and R 4 represents a group capable of activating the benzo ring of benzisoxazole with respect to aromatic electrophilic substitution reactions according to Friedel-Crafts, such as, without limitation, alkyl or alkoxy radicals;
- radicals R 1, R 2 , R 3 and R 4 represents a group capable of promoting an orthometallation reaction followed by electrophilic trapping on the benzo ring of benzisoxazole, such as, without limitation, an alkoxy radical, a radical trifluroacetamido or fert.butoxycarbonylamino; None of the radicals R 1 , R 2 , R 3 and R 4 represents a halogen atom capable of being exchanged with a metal.
- the products of the present invention are endowed with valuable pharmacological properties: they have been found to possess, in particular, protein inhibiting properties. Among these proteins, mention is made in particular of HSP90.
- the invention therefore relates to the application, as medicaments, pharmaceutically acceptable products of general formula (I).
- the invention particularly relates to the application as drugs, the following products:
- the invention more particularly relates to the application as drugs, the following products:
- the subject of the invention is in particular the application as a medicament of the product 4- (1,2-Benzisoxazol-3-yl) benzene-1,3-diol as defined above, as well as its prodrugs, product of formula (I) being in all isomeric forms possible racemic, enantiomers and diastereoisomers, as well as addition salts with inorganic and organic acids or with the inorganic and organic bases pharmaceutically acceptable 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).
- the subject of the invention is thus the pharmaceutical compositions as defined above, characterized in that they are used as medicaments, in particular for the chemotherapy of cancers.
- the invention thus relates to the pharmaceutical compositions as defined above additionally containing active principles of other cancer chemotherapy drugs.
- 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 products corresponding to the general formula (I) as defined above thus have a significant Hsp90 chaperone inhibitory activity.
- the present invention thus 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 to prevent or treat a disease characterized by the disruption of the activity of the HSP90 protein.
- the present invention thus relates to the use of products of formula (I) as defined above or pharmaceutically acceptable salts said products of formula (I) for the preparation of medicaments for inhibiting the activity of the HSP90 protein.
- the subject of the present invention is thus the use of products of formula (1) as defined above or of pharmaceutically acceptable salts of said products of formula (I) in which the disease to be prevented or treated is in a mammal.
- the present invention thus also 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 subject of the present invention is therefore also the use of products of formula (I) as defined above or of pharmaceutically acceptable salts of said products of formula (I) in which the disease to be treated is a cancer of solid or liquid tumors. .
- 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 also relates to the use of products of formula (I) as defined above or pharmaceutically acceptable salts of said products of formula (I) in which the disease to be treated is a cancer resistant to cytotoxic agents.
- the present invention thus also relates to the use of products of formula (I) as defined as defined above 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 melanoma, 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 melanoma, thyroid tumors and renal carcinomas.
- Hsp90 inhibitors are also mentioned, without limitation:
- non-small cell lung cancers lung cancers, breast cancers, ovarian cancers and glioblastomas that overexpress
- 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 subject of the present invention is therefore also 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 for the chemotherapy of cancers used alone or in association.
- 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.
- the present invention thus 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 medicaments intended to be used alone or in combination with chemotherapy or radiotherapy or alternatively in combination with other therapeutic agents.
- the subject of the present invention is therefore also the use of products of formula (I) as defined above or of pharmaceutically acceptable salts of said products of formula (I) in which the therapeutic agents may be antitumor agents commonly used. .
- the subject of the present invention is in particular the use of the product 4- (1,2-Benzisoxazol-3-yl) benzene-1,3-diol as defined above, or of pharmaceutically acceptable salts of this product according to the invention. any of the uses defined above
- inhibitors of protein kinases include butyrolactone, flavopiridol, 2- (2-hydroxyethylamino) -6-benzylamino-9-methylpurine, Polomucine, Glivec and Plressa.
- the products of formula (I) according to the present invention can thus also be advantageously used in combination with anti-proliferative agents: by way of examples of such antiproliferative agents but without however, this list is limited to aromatase inhibitors, antiestrogens, topoisomerase I inhibitors, topoisomerase II inhibitors, microtubule active agents, alkylating agents and histone deacetylase inhibitors.
- famesyl transferase inhibitors COX-2 inhibitors, MMP inhibitors, mTOR inhibitors, antineoplastic antimetabolites, platinum compounds, compounds decreasing the activity of protein kinases and also anti-angiogenic compounds , gonadorelin agonists, antiandrogens, bengamides, biphophonates and trastuzumab.
- anti-microtubule agents such as taxoids, vinka-alkaloids, alkylation agents such as cyclophosphamide, DNA-intercalating agents such as cis-platinum, 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 inhibitors of protein kinases, said products of formula (I) being in all isomeric forms possible racemic, enantiomers and diastereoisomers, as well as the addition salts with acids inorganic and organic or with the pharmaceutically acceptable inorganic and organic bases of said products of formula (I) and their prodrugs.
- the present invention particularly relates to products of formula (I) as defined above as inhibitors of HSP90, said products of formula (I) being in all isomeric forms possible racemic, enantiomers and diastereoisomers, as well as salts of addition 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 relates in particular to the product 4- (1,2-Benzisoxazol-3-yl) benzene-1,3-diol as defined above, as an inhibitor of HSP90, said product being in all isomeric forms possible racemic, enantiomers and diastereoisomers, as well as addition salts with mineral and organic acids or with mineral and organic bases pharmaceutically acceptable said product of formula (I) and its prodrugs.
- 2- (1,2-Benzisoxazol-3-yl) -5-methoxyphenol may be prepared from 2,2'-dihydroxy-4-methoxybenzophenone under the conditions described in J. Org. Chem. 1983, 48, 2613-15.
- Step 1 In a 250 ml three-necked flask, 2.163 g of acetone oxime was dissolved in 75 ml of DMF and 3,317 g of potassium tert-butoxide was added. 7 g of (2,4-dimethoxyphenyl) - (2-fluorophenyl) methanone are then added slowly over the course of 2 hours, followed by stirring at room temperature for 3 days. After concentration under reduced pressure, the reaction residue is taken up in 100 ml of diethyl ether, washed 3 times with 50 ml of water, dried over magnesium sulphate and concentrated to dryness under reduced pressure.
- the orange-brown oil thus obtained is purified by flash chromatography on silica gel, eluting with a mixture of ethyl acetate and cyclohexane (20/80 by volume). There is thus obtained 7.85 g of (2,4-dimethoxyphenyl) - ⁇ 2 - [(isopropylidene) amino] oxy-phenyl ⁇ methanone, in the form of an orange oil used as it is in the next step.
- (2,4-Dimethoxyphenyl) - (2-fluorophenyl) methanone can be prepared by operating according to WO 9420869.
- Step 2 In a three-necked 250 ml under argon atmosphere, 7.834 g of (2,4-dimethoxyphenyl) - ⁇ 2 - [(isopropylidene) amino] oxyphenyl ⁇ methanone are dissolved in 150 ml of acetonitrile and then cooled. to 50 ° C. and 127 ml of a 1.4M aqueous solution of hydrochloric acid are slowly added. The mixture is then heated at 80 ° C. for 3 hours. After concentration under reduced pressure, the reaction medium is taken up in 100 ml of ethyl acetate and 20 ml of water.
- Step 3 In a 100 mL three-necked flask under an argon atmosphere, 1 g of 3- (2,4-dimethoxyphenyl) -1,2-benzisoxazole is dissolved in 40 ml of chloroform. After cooling to 0 ° C., a solution of 0.69 g of bromine in 5 ml of chloroform is added dropwise and the mixture is stirred for 1 hour at 0 ° C. After neutralization with a saturated aqueous solution of sodium hydrogencarbonate, The organic phase is decanted, washed with water, dried over magnesium sulphate and concentrated to dryness under reduced pressure. 1.3 g of 3- (5-bromo-2,4-dimethoxyphenyl) -1,2-benzisoxazole are thus obtained in the form of a beige powder, the characteristics of which are as follows:
- Step 4 The procedure is as in Example 1, but starting from 334 mg of
- Example 3 5- (1,2-Benzisoxazol-3-yl) -2,4-dihydroxybenzenecarboxylic acid methyl ester
- Step 1 In a 50 ml three-necked flask under an argon atmosphere, 334 mg was dissolved 3- (6-bromo-2,4-dimethoxyphenyl) -1,2-benzisoxazole, obtained in step 3 of Example 1, in 10 mL of anhydrous THF, then the solution is cooled to -70 ° and 0.69 ml of a 1.6M solution of n-butyllithium in hexane is added dropwise.
- Step 2 The procedure is as in Example 1, but starting from 150 mg of methyl ester of 5- (1, 2-benzisoxazol-3-yl) -2,4-dimethoxybenzenecarboxylic acid and of 1, 198 mL of a molar solution of boron tribromide in 5 mL of dichloromethane. Purifying by flash chromatography on silica gel, eluting with a mixture of cyclohexane and ethyl acetate (90/10 by volume), recovering the second eluted fraction, which is crystallized in 2 mL of calcium oxide.
- reaction medium is taken up in 25 ml of water and washed with 10 ml of diethyl ether.
- the precipitate formed is drained, washed with water and dried in an oven at 50 ° C. 210 mg of 5- (1,2-benzisoxazol-3-yl) -2,4-dimethoxy acid are thus obtained.
- benzenecarboxylic acid in the form of an unbleached solid whose characteristics are as follows:
- Step 2 In a tricolor of 25 ml, a solution of 175 mg of 5- (1,2-benzisoxazol-3-yl) -2,4-dimethoxy-benzenecarboxylic acid and a solution of 175 mg of toluene is stirred overnight at room temperature. mg N-benzylamine in 10 mL dichloromethane in the presence of 123 mg EDCI and 87 mg HOBT. After addition of 25 mL of water and
- Step 3 The procedure is as in Example 1, but starting from 185 mg N1-phenylmethyl-5- (1,2-benzisoxazol-3-yl) -2,4-dimethoxy- benzenecarboxamide and 1.19 mL of a molar solution of boron tribromide in 5 mL of dichloromethane.
- Step 1 In a 100 ml three-necked flask under an argon atmosphere, 1.03 g of 3- (5-bromo-2,4-dimethoxyphenyl) -1,2-benzisoxazole is dissolved in 35 ml of THF and then cooled. solution at -78 ° C. 2.063 ml of a 1.6M solution of n-butyl lithium in hexane are then slowly added at -78 ° C; then, after 1 hour of stirring at -78 ° C., a solution of 1.404 g of iodoethane in 5 ml of THF is added at -78 ° C. Allowed to warm to room temperature and stirred for 20 hours.
- reaction medium is then poured into 100 ml of a saturated aqueous solution of ammonium chloride and extracted 3 times with 25 ml of ethyl acetate.
- the combined organic phases are washed with water, dried over magnesium sulphate and concentrated under reduced pressure.
- Step 2 The procedure is as in Example 1, but starting from 1 g of 3- (5-ethyl-2,4-dimethoxyphenyl) -1,2-benzisoxazole and 8.83 ml of a molar solution of boron tribromide in 40 mL of dichloromethane.
- Step 1 In a 100 ml tricolor under an argon atmosphere, 1.51 g of 3- (5-bromo-2,4-dimethoxyphenyl) -1,2-benzisoxazole is dissolved in 75 ml of DMF and then added. successively 1.10 g of (2E-phenylethenyl) boronic acid, 578 mg of tetrakis (triphenylphosphine) palladium and 1.26 g of sodium hydrogencarbonate. The reaction medium is heated at 80 ° C. for 20 hours. After concentration under reduced pressure, the residue is taken up in 50 ml of water and 50 ml of ethyl acetate.
- Step 2 In a 100 ml Top45 autoclave, a solution of 700 mg of 3- [5- (2E-phenyl-ethenyl) -2,4-) is stirred for 6 hours under a pressure of 1 bar of hydrogen. dimethoxyphenyl] -1,2-benzisoxazole, obtained in the previous step, in 44 ml of ethanol in the presence of 20 mg of 5% palladium on charcoal. After filtration of the catalyst, the solvent is concentrated under reduced pressure and the residue is purified by flashing. chromatography on silica gel eluting with a mixture of cyclohexane and diisopropyl ether.
- Step 3 The procedure is as in Example 1, but starting from 500 mg of 3- [5- (2-phenyl-ethyl) -2,4-dimethoxyphenyl] -1,2-benzisoxazole and of 3.48 mL a molar solution of boron tribromide in 15 ml of dichloromethane.
- Step 1 In a 100 ml three-necked flask under an argon atmosphere, 1.67 g of 3- (5-bromo-2,4-dimethoxyphenyl) -1,2-benzisoxazole are dissolved in 66 ml of THF and then cooled. solution at -70 ° C. 3.44 ml of a 1.6M solution of n-butyl lithium in hexane are then slowly added at -70 ° C.; then, after stirring for 1 hour at -70 ° C., 3.65 g of DMF are added, still at -70 ° C. Allowed to warm to room temperature and stirred for 20 hours.
- reaction medium is then poured into 100 ml of a saturated aqueous solution of ammonium chloride and extracted 3 times with 50 ml of ethyl acetate.
- the combined organic phases are washed with water, dried over magnesium sulphate and concentrated under reduced pressure.
- 2nd step In a 25 ml three-necked flask under an argon atmosphere, 100 mg of 5- (1,2-benzoxazol-3-yl) -2,4-dimethoxybenzaldehyde, obtained in the previous step, are dissolved in 2 ml of methanol. 35.4 ⁇ l of aniline, 106 mg of acetic acid and 100 mg of molecular sieve 3A are then added. Stirred 15 minutes at room temperature; 48.8 mg of sodium cyanoborohydride are then added and the mixture is stirred for 20 hours at room temperature. After addition of 5 ml of saturated aqueous sodium hydrogencarbonate solution, the mixture is filtered through celite and then extracted 3 times with 25 ml of dichloromethane.
- Step 3 The procedure is as in Example 1, but starting from 200 mg of [5- (1, 2-benzisoxazol-3-yl) -2,4-dimethoxy-phenyl] methyl-phenyl-amine and 1 39 ml of a molar solution of boron tribromide in 6 ml of dichloromethane.
- Step 1 The procedure is as in Step 2 of Example 8, but starting from 567 mg of 5- (1, 2-benzoxazol-3-yl) -2,4-dimethoxy-benzaldehyde, obtained from Step 1 of Example 8, 266 mg of 3,4-dimethylaniline, 601 mg of acetic acid and 1.86 g of molecular sieve 3A and then 276.5 of sodium cyanoborohydride in 12 mL of methanol for 20 hours at room temperature. room.
- Step 2 The procedure is as in Example 1, but starting from 680 mg of [5- (1, 2-benzisoxazol-3-yl) -2,4-dimethoxy-phenyl] methyl- (3,4-dimethylphenyl) ) - amine and 8.75 mL of a molar solution of boron tribromide in 12 mL of dichloromethane. Purified by flash chromatography on silica gel, eluting with mixtures of cyclohexane and ethyl acetate (95/5 and 90/10 by volume).
- Examples 11 and 12 4- (1,2-Benzisoxazol-3-yl) -6- (3,4-dichlorophenylamino) methylbenzene-1,3-diol and 4- (1,2-benzisoxazol-3) -yl) -6- (3,4-dichlorophenyl) iminomethylbenzene-1,3-diol
- Step 1 The procedure is as in Step 2 of Example 8, but starting from 567 mg of 5- (1, 2-benzoxazol-3-yl) -2,4-dimethoxy-benzaldehyde, obtained from Step 1 of Example 8, 356 mg of 3,4-dichlorolaniline, 601 mg of acetic acid and 1.86 g of molecular sieve 3A then 276.5 of sodium cyanoborohydride in 12 mL of methanol for 20 hours at room temperature. room.
- Step 2 The procedure is as in Example 1, but starting from 4 g of [5- (1,2-benzisoxazol-3-yl) -2,4-dimethoxy-phenyl] methyl- (3,4-dichlorophenyl) ) - amine and 78.3 ml of a molar solution of boron tribromide in 100 ml of dichloromethane. Purified by flash chromatography on silica gel, eluting with mixtures of cyclohexane and ethyl acetate (95/5 and 90/10 by volume).
- the inorganic phosphate released during the hydrolysis of ATP by the ATPase activity of Hsp82 is quantified by the green malachite method.
- this reagent there is formation of the complex inorganic phosphate-molybdate-malachite green which absorbs at a wavelength of 620 nm.
- the products to be evaluated are incubated in a reaction volume of 30 ⁇ l, in the presence of 1 ⁇ M Hsp82 and 250 ⁇ M substrate (ATP) in a buffer composed of 50 mM Hepes-NaOH (pH 7.5), 1 mM DTT, 5 mM MgCl 2 and 50 mM KCl at 37 ° C. for 60 min.
- a range of inorganic phosphate of between 1 and 40 ⁇ M is formed in the same buffer.
- the ATPase activity is then revealed by the addition of 60 .mu.l of the reagent biomol green (Tebu).
- the absorbance of the different wells is measured using a microplate reader at 620 nm.
- the inorganic phosphate concentration of each sample is then calculated from the calibration curve.
- the ATPase activity of Hsp82 is expressed as the concentration of inorganic phosphate produced in 60 min.
- the effect of the various products tested is expressed as a percentage inhibition of ATPase activity.
- ADP due to the ATPase activity of Hsp82 was used to develop another method for evaluating the enzymatic activity of this enzyme by application of an enzymatic coupling system involving pyruvate kinase (PK ) and lactate dehydrogenase (LDH).
- PK catalyzes the formation of ATP and pyruvate from phosphoenol-pyruvate (PEP) and ADP produced by HSP82.
- PEP phosphoenol-pyruvate
- the pyruvate formed, substrate of the LDH is then converted into lactate in the presence of NADH.
- the decrease in NADH concentration as measured by the decrease in absorbance at the wavelength of 340 nm is proportional to the concentration of ADP produced by HSP82.
- the tested products are incubated in a reaction volume of 100 ⁇ l of buffer composed of 100 mM Hepes-NaOH (pH 7.5), 5 mM MgCl 2, 1 mM DTT, 150 mM KCl, 0.3 mM NADH, 2.5 mM PEP and 250 ⁇ M ATP.
- This mixture is preincubated at 37 ° C. for 30 min before addition of 3.77 units of LDH and 3.77 units of PK.
- the reaction is initiated by adding the product to be evaluated, in varying concentrations, and Hsp82, at a concentration of 1 ⁇ M. Measuring the enzymatic activity of Hsp82 is then carried out continuously in a microplate reader at 37 0 C, the wavelength of 340nm.
- the initial speed of the reaction is obtained by measuring the slope of the tangent at the origin of the recorded curve.
- the enzymatic activity is expressed in ⁇ M of ADP formed per minute.
- the effect of the various products tested is expressed as a percentage inhibition of ATPase activity.
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Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
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BRPI0606178-8A BRPI0606178A2 (pt) | 2005-02-22 | 2006-02-20 | derivados de 3-aril-1,2-benzisoxazol e sua utilização como medicamentos contra o cáncer |
CA002597781A CA2597781A1 (fr) | 2005-02-22 | 2006-02-20 | Nouveaux derives de 3-aryl-1 ,2-benzisoxazole, compositions les contenant et leur utilisation |
EA200701798A EA200701798A1 (ru) | 2005-02-22 | 2006-02-20 | Производные 3-арил-1,2-бензизоксазола и их применение в качестве лекарств против рака |
AU2006217799A AU2006217799A1 (en) | 2005-02-22 | 2006-02-20 | Novel 3-aryl-1,2-benzisoxazole derivatives, compositions containing same and use thereof |
JP2007555668A JP2008531493A (ja) | 2005-02-22 | 2006-02-20 | 新規3−アリール−1,2−ベンゾイソオキサゾール誘導体、これを含む組成物およびその使用 |
EP06709343A EP1861381A1 (fr) | 2005-02-22 | 2006-02-20 | Nouveaux derives de 3-aryl-1 ,2-benzisoxazole, compositions les contenant et leur utilisation |
MX2007010278A MX2007010278A (es) | 2005-02-22 | 2006-02-20 | Nuevos derivados de 3-aril-1,2-bencisoxazol, composiciones que los contienen y su utilizacion. |
IL185166A IL185166A0 (en) | 2005-02-22 | 2007-08-09 | Novel 3-aryl-1,2-benzisoxazole derivatives, compositions containing same and use thereof |
US11/841,128 US20080070960A1 (en) | 2005-02-22 | 2007-08-20 | Novel 3-Aryl-1,2-Benzisoxazole Derivatives and Use Thereof as Medicinal Products Against Cancer |
NO20074631A NO20074631L (no) | 2005-02-22 | 2007-09-11 | Nye 3-aryl-1,2-benzisoksazolderivater, forbindelser inneholdende de samme og deres anvendelse |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR0501801 | 2005-02-22 | ||
FR0501801A FR2882361A1 (fr) | 2005-02-22 | 2005-02-22 | Nouveaux derives de 3-aryl-1,2-benzisoxazole, compositions les contenant et leur utilisation |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/841,128 Continuation US20080070960A1 (en) | 2005-02-22 | 2007-08-20 | Novel 3-Aryl-1,2-Benzisoxazole Derivatives and Use Thereof as Medicinal Products Against Cancer |
Publications (1)
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WO2006090052A1 true WO2006090052A1 (fr) | 2006-08-31 |
Family
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Family Applications (1)
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PCT/FR2006/000375 WO2006090052A1 (fr) | 2005-02-22 | 2006-02-20 | Nouveaux derives de 3-aryl-1 ,2-benzisoxazole, compositions les contenant et leur utilisation |
Country Status (19)
Country | Link |
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US (1) | US20080070960A1 (fr) |
EP (1) | EP1861381A1 (fr) |
JP (1) | JP2008531493A (fr) |
KR (1) | KR20070110102A (fr) |
CN (1) | CN101146780A (fr) |
AR (1) | AR053684A1 (fr) |
AU (1) | AU2006217799A1 (fr) |
BR (1) | BRPI0606178A2 (fr) |
CA (1) | CA2597781A1 (fr) |
EA (1) | EA200701798A1 (fr) |
FR (1) | FR2882361A1 (fr) |
IL (1) | IL185166A0 (fr) |
MA (1) | MA29265B1 (fr) |
MX (1) | MX2007010278A (fr) |
NO (1) | NO20074631L (fr) |
TW (1) | TW200640884A (fr) |
UY (1) | UY29390A1 (fr) |
WO (1) | WO2006090052A1 (fr) |
ZA (1) | ZA200707080B (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2907453B1 (fr) * | 2006-10-24 | 2008-12-26 | Sanofi Aventis Sa | Nouveaux derives du fluorene,compositions les contenant et utilisation |
AR077405A1 (es) | 2009-07-10 | 2011-08-24 | Sanofi Aventis | Derivados del indol inhibidores de hsp90, composiciones que los contienen y utilizacion de los mismos para el tratamiento del cancer |
FR2949467B1 (fr) | 2009-09-03 | 2011-11-25 | Sanofi Aventis | Nouveaux derives de 5,6,7,8-tetrahydroindolizine inhibiteurs d'hsp90, compositions les contenant et utilisation |
ES2658597T3 (es) | 2012-12-19 | 2018-03-12 | Celgene Quanticel Research, Inc. | Inhibidores de histona desmetilasa |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030207927A1 (en) * | 2001-12-13 | 2003-11-06 | Wyeth | Phenyl benzisoxazoles as estrogenic agents |
WO2004072051A1 (fr) * | 2003-02-11 | 2004-08-26 | Vernalis (Cambridge) Limited | Composes d'isoxazole utiles comme inhibiteurs des proteines de choc thermique |
WO2005019151A1 (fr) * | 2003-08-20 | 2005-03-03 | Eli Lilly And Company | Modulateurs du recepteur active de la proliferation des peroxysomes (ppar) |
Family Cites Families (1)
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JP4575294B2 (ja) * | 2003-06-27 | 2010-11-04 | 協和発酵キリン株式会社 | Hsp90ファミリー蛋白質阻害剤 |
-
2005
- 2005-02-22 FR FR0501801A patent/FR2882361A1/fr active Pending
-
2006
- 2006-02-20 AR ARP060100604A patent/AR053684A1/es unknown
- 2006-02-20 ZA ZA200707080A patent/ZA200707080B/xx unknown
- 2006-02-20 JP JP2007555668A patent/JP2008531493A/ja active Pending
- 2006-02-20 MX MX2007010278A patent/MX2007010278A/es not_active Application Discontinuation
- 2006-02-20 KR KR1020077021865A patent/KR20070110102A/ko not_active Application Discontinuation
- 2006-02-20 BR BRPI0606178-8A patent/BRPI0606178A2/pt not_active IP Right Cessation
- 2006-02-20 CN CNA2006800095240A patent/CN101146780A/zh active Pending
- 2006-02-20 AU AU2006217799A patent/AU2006217799A1/en not_active Abandoned
- 2006-02-20 WO PCT/FR2006/000375 patent/WO2006090052A1/fr active Application Filing
- 2006-02-20 EA EA200701798A patent/EA200701798A1/ru unknown
- 2006-02-20 EP EP06709343A patent/EP1861381A1/fr not_active Withdrawn
- 2006-02-20 CA CA002597781A patent/CA2597781A1/fr not_active Abandoned
- 2006-02-21 TW TW095105684A patent/TW200640884A/zh unknown
- 2006-02-22 UY UY29390A patent/UY29390A1/es unknown
-
2007
- 2007-08-09 IL IL185166A patent/IL185166A0/en unknown
- 2007-08-20 US US11/841,128 patent/US20080070960A1/en not_active Abandoned
- 2007-08-23 MA MA30161A patent/MA29265B1/fr unknown
- 2007-09-11 NO NO20074631A patent/NO20074631L/no not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030207927A1 (en) * | 2001-12-13 | 2003-11-06 | Wyeth | Phenyl benzisoxazoles as estrogenic agents |
WO2004072051A1 (fr) * | 2003-02-11 | 2004-08-26 | Vernalis (Cambridge) Limited | Composes d'isoxazole utiles comme inhibiteurs des proteines de choc thermique |
WO2005019151A1 (fr) * | 2003-08-20 | 2005-03-03 | Eli Lilly And Company | Modulateurs du recepteur active de la proliferation des peroxysomes (ppar) |
Non-Patent Citations (3)
Title |
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DATABASE CROSSFIRE Beilstein Institut zur Foerderung der Chemischen Wissenschaften; XP002349754 * |
JOURNAL FUER PRAKTISCHE CHEMIE, vol. 119, no. 2, 1928, pages 351 * |
MALAMAS M S ET AL: "Design and synthesis of aryl diphenolic azoles as potent and selective estrogen receptor-beta ligands", JOURNAL OF MEDICINAL CHEMISTRY, vol. 47, no. 21, 7 October 2004 (2004-10-07), pages 5021 - 5040, XP002349752 * |
Also Published As
Publication number | Publication date |
---|---|
JP2008531493A (ja) | 2008-08-14 |
US20080070960A1 (en) | 2008-03-20 |
ZA200707080B (en) | 2008-11-26 |
MA29265B1 (fr) | 2008-02-01 |
AR053684A1 (es) | 2007-05-16 |
IL185166A0 (en) | 2007-12-03 |
EA200701798A1 (ru) | 2008-02-28 |
AU2006217799A1 (en) | 2006-08-31 |
NO20074631L (no) | 2007-11-20 |
MX2007010278A (es) | 2007-11-07 |
EP1861381A1 (fr) | 2007-12-05 |
TW200640884A (en) | 2006-12-01 |
BRPI0606178A2 (pt) | 2009-06-02 |
UY29390A1 (es) | 2006-10-02 |
CN101146780A (zh) | 2008-03-19 |
CA2597781A1 (fr) | 2006-08-31 |
KR20070110102A (ko) | 2007-11-15 |
FR2882361A1 (fr) | 2006-08-25 |
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