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Amino-benzofuryl-and thienyl-derivatives

  • US 5,622,989 A
  • Filed: 05/23/1995
  • Issued: 04/22/1997
  • Est. Priority Date: 05/31/1994
  • Status: Expired due to Fees
First Claim
Patent Images

1. An amino-benzofuryl- or thienyl-derivative of the formula ##STR165## in whichR1 represents hydrogen or straight-chain or branched alkyl having up to 6 carbon atoms or represents halogen, carboxyl, cyano, nitro, trifluoromethyl or a group of a formula --OR5, --SR6 or --NR7 R8, in whichR5, R6 and R6 are identical or different and denote hydrogen, cycloalkyl having 3 to 6 carbon atoms, benzyl or a 5 to 7-membered saturated or unsaturated heterocycle having up to 4 hetereoatoms selected from the group consisting of N, S or O and to which a phenyl ring can be fused and which is optionally substituted by identical or different substituents selected from the group consisting of halogen, cyano, nitro or by a straight-chain or branched alkyl having up to 6 carbon atoms ordenote straight-chain or branched alkyl or alkenyl each having up to 8 carbon atoms, ordenote phenyl, which is optionally monosubstituted to disubstituted by identical or different substituents selected from the group consisting of nitro, halogen, carboxy or straight-chain or branched alkoxycarbonyl having up to 6 carbon atoms, orR5 denotes a hydroxyl protecting group,R7 denotes hydrogen or a straight-chain or branched alkyl having up to 4 carbon atoms,R2 represents formyl or straight-chain or branched acyl, alkoxy or alkoxycarbonyl each having up to 8 carbon atoms in the alkyl group, or represents benzoyl, which is optionally monosubstituted to trisubstituted by identical or different substituents from the series comprising halogen, cyano, carboxy, straight-chain or branched alkoxy, alkoxycarbonyl or acyl each having up to 6 carbon atoms in the alkyl group, or represents a group of a formula ##STR166## --SO2 R9, --CO--(CH2)a NR10 R11, --CO--(CH2)b --R12, --CO--S--R13 or a residue of the formula ##STR167## in which R9 denotes straight-chain or branched alkyl having up to 6 carbon atoms, which is optionally substituted by phenyl, or denotes phenyl, which is optionally substituted by trifluoromethyl, cyano, nitro or straight-chain or branched alkyl having up to 6 carbon atoms,R10 and R11 are identical or different and denote hydrogen, straight-chain or branched alkyl having up to 6 carbon atoms or phenyl,R12 denotes straight-chain or branched hydroxyl, oxyacyl, alloxy or alkoxycarbonyl each having up to 6 carbon atoms or carboxy,a denotes a number 0, 1, 2 or 3,b denotes a number 1, 2 or 3,R13 denotes straight-chain or branched alkyl having up to 6 carbon atoms,R3 represents hydrogen or straight-chain or branched alkyl having up to 6 carbon atoms, or has the abovementioned meaning of R2,T represents an oxygen or sulfur atomA represents hydrogen, hydroxyl, cycloalkyl with 3 to 6 carbon atoms, carboxy or straight-chain or branched alkoxycarbonyl or alkoxy each having up to 6 carbon atoms, or straight-chain or branched alkyl or alkenyl each having up 8 carbon atoms and each of which is optionally mono-substituted by cyano or by a 5 to 7-membered saturated or unsaturated heterocycle having up to 4 heteroatoms selected from the group consisting of N, S and O, which is optionally substituted by identical or different substituents selected from the group consisting of hydroxy, halogen, cyano, nitro or by a straight-chain or branched alkyl having up to 6 carbon atoms, or alkyl or alkenyl are optionally substituted by a group of a formula ##STR168## in which c denotes a number 1 or 2,and in which both rings are optionally monosubstituted by hydroxy, halogen or by straight-chain or branched alkyl having up to 6 carbon atoms,or alkyl or alkenyl are optionally monosubstituted by a group of a formula --CO--R14, --CO--NR15 R16, --CONR17 --SO2 --R18 or --PO(OR19)(OR20), --OR21 or ##STR169## in which R14 denotes hydroxyl, cycloalkyloxy having 3 to 7 carbon atoms or straight-chain or branched alkyl or alkoxy each having up to 8 carbon atoms,R15, R16 and R17 are identical or different and represent hydrogen, straight-chain or branched alkyl having up to 6 carbon atoms, phenyl or benzyl, orR15 denotes hydrogen, andR16 denotes hydroxyl, orR15 and R16 together with the nitrogen atom form a 5- or 6-membered saturated heterocycle,R18 denotes a straight-chain or branched alkyl having up to 6 carbon atoms, which is optionally substituted by phenyl or trifluoromethyl, or denotes phenyl, which is optionally substituted by substituents from the series comprising halogen, cyano, nitro or by a straight-chain or branched alkyl having up to 6 carbon atoms,R19, R20 and R21 are identical or different and represent hydrogen or straight-chain or branched alkyl having up to 6 carbon atoms,R22 denotes hydrogen, an aminoprotecting group or straight-chain or branched alkyl having up to 6 carbon atoms,R23 and R24 are identical or different and denote hydrogen or straight-chain or branched alkyl having up to 4 carbon atoms, orR23 has the abovementioned meaning, andR24 denotes cycloalkyl having 3 to 6 carbon atoms or aryl having 6 to 10 carbon atoms or straight-chain or branched alkyl having up to 8 carbon atoms, which is optionally substituted by cyano, methylthio, hydroxy, mercapto, guanidyl or a group of a formula --NR25 R26 or R27 --CO--, whereinR25 and R26 have the meaning shown above for R15, R16 and R17,R27 denotes hydroxyl, benzyloxycarbonyl, straight-chain or branched alkoxy having up to 6 carbon atoms or the abovementioned group --NR25 R26,alkyl is optionally substituted by cycloalkyl having 3 to 6 carbon atoms, or by aryl having up 6 to 10 carbon atoms, which is optionally substituted by hydroxyl, halogen, nitro, straight-chain or branched alkoxy having up to 8 carbon atoms or by the abovementioned group of the formula --NR25 R26, or alkyl is optionally substituted by indolyl wherein the --NH-- function is optionally protected by a straight-chain or branched alkyl having up to 6 carbon atoms or by an amino protecting group, or by a 5 to 6 membered unsaturated heterocycle having up to 4 N-atoms wherein all --NH-functions are protected by straight-chain or branched alkyl having up to 6 carbon atoms or by an amino protecting group, andR4 represents phenyl, which is optionally monosubstituted to trisubstituted by identical or different substituents selected from the group consisting of hydroxyl, adamantyl, phenoxy, cycloalkyl having up to 3 to 6 carbon atoms, halogen, nitro, furanyl, thienyl, pyridyl, tetrazolyl, trifluoromethyl, difluoromethyl, cyano, carboxyl, straight-chain or branched alkyl, alkoxy, alkoxycarbonyl or acyl each having up to 11 carbon atoms in the alkyl group or by phenyl, which is optionally monosubstituted to trisubstituted by nitro, halogen, formyl, carbonyl or straight-chain or branched alkoxy, acyl, alkoxycarbonyl or alkyl each having up to 6 carbon atoms, which is optionally substituted by hydroxyl orphenyl is substituted by a group of formula --NR28 R29, --SR30, SO2 R31, --O--SO2 R32 or ##STR170## in which R28 and R29 have the meaning shown above for R10 and R11, orR28 denotes hydrogen, andR29 denotes straight-chain or branched acyl having up to 6 carbon atoms,R30 denotes straight-chain or branched alkyl having up to 6 carbon atoms,R31 and R32 are identical or different and represent straight-chain or branched alkyl having up to 6 carbon atoms, benzyl or phenyl, which are optionally substituted by trifluoromethyl, halogen or straight-chain or branched alkyl having up to 6 carbon atoms, with the proviso that A does not denote methyl orII if A represents a methyl group R1, T and R4 have the meaning described in part I, and in this caseR2 and R3 are identical or different and represent hydrogen or straight-chain or branched alkyl having up to 6 carbon atoms, or represent formyl or straight-chain or branched acyl, alkoxy or alkoxy carbonyl each having up to 8 carbon atoms, or represent benzoyl, which is optionally monosubstituted to trisubstituted by identical or different substituents selected from the group consisting of halogen, cyano, carboxy, straight-chain or branched alkoxy, alkoxycarbonyl or acyl each having up to 6 carbon atoms, or represent a group of a formula --SO2 (NH)g R33, SO2 NH2, --CO--(CH2)d NR34 R35, --(CH2)e --CO--R36, --CO--(CH2)f --R37 or --CO--X, in whichR33 has the abovementioned meaning of R9 and is identical or different to the latter,R34 and R35 are identical or different and have the abovementioned meaning of R10 and R11,R36 denotes hydroxyl or straight-chain or branched alkoxy having up to 6 carbon atoms,R37 has the abovementioned meaning of R12 or denotes straight-chain or branched alkoxy or oxyacyl each having up to 6 carbon atoms or hydroxyl,d has the abovementioned meaning of a,e denotes a number 1, 2, 3, 4 or 5,f has the abovementioned meaning of b,g denotes a number 0 or 1,X denotes a 5-membered saturated or unsaturated heterocycle having up to 3 heteroatoms selected from the group consisting of N, S or O, which is optionally monosubstituted to trisubstituted by nitro, methyl or ethyl, orX denotes a residue of the formula ##STR171## orIIIR1, A and T have the abovementioned meaning described in part I orA represents methyl,R2 and R3 have the abovementioned meaning described in part II, and in this caseR4 represents a 5 to 7 membered, saturated or unsaturated hetereocycle, which contains up to three oxygen, sulphur and/or nitrogen atoms as heteroatoms and to which further a benzene ring can be fused and wherein both rings are optionally monosubstituted to trisubstituted by identical or different substituents selected from the group consisting of hydroxyl, halogen, nitro, 1H-tetrazolyl, trifluoromethyl, trifluoromethoxy, difluoromethyl, difluoromethoxy, cyano, carboxy, straight-chain or branched alkyl, alkoxy, alkoxycarbonyl or acyl each having up to 8 carbon atoms or by a group of formula --NR38 R39, --SR40, SO2 R41 or --O--SO2 R42, in whichR38 and R39 have the meaning shown above for R28 and R29 and are identical to the latter or different from the latter,R40 has the abovementioned meaning of R30,R41 and R42 are identical or different and have the abovementioned meaning of R31 and R32,or a salt thereof,provided that N-[2-(4-ethoxybenzoyl)-3-hydroxy-5-benzofuranyl]-acetamide;

  • 6-amino-2-benzoyl-5-cyano-3-methylbenzofuran;

    6-amino-2-(4-p-chlorobenzoyl)-5-cyano-3-methylbenzofuran;

    N-[2-benzoyl)-3-methyl-5-benzofuranyl]-acetamide;

    N-[2-(2,5-dimethylbenzoyl)-3-methyl-5-benzofuranyl]-acetamide; and

    5-amino-2-benzoyl-3-methylbenzofuran and salts thereof are excluded.

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