| abstract |
PCT No. PCT/FR93/01317 Sec. 371 Date Jun. 29, 1995 Sec. 102(e) Date Jun. 29, 1995 PCT Filed Dec. 29, 1993 PCT Pub. No. WO94/15916 PCT Pub. Date Jul. 21, 1994The present invention relates to compounds having the formula: <IMAGE> wherein R1 is a hydrogen atom, a linear or branched alkyl radical or a phenyl, benzyl, cycloalkyl, polycycloalkyl, dibenzocycloalkyl, dibenzooxepine, dibenzoazepine, dibenzothiepine, benzopyrrolocycloalkyl, benzothienocycloalkyl or naphthyl radical, optionally substituted by one or a number of substituents chosen from halogen atoms and alkyl, aryl acyl, alkoxy and alkyl thio radicals. Z is C=O, SO2 or (CH2)n in which n is between 1 and 5. R2 is a hydrogen atom, a linear or branched alkyl radical or a phenyl, benzyl, cycloalkyl, pyrrole, furan, pyridinyl or thiophenyl radical, optionally substituted by one or a number of substituents chosen from halogen atoms and alkyl, aryl, acyl, alkoxy and alkylthio radicals. R'2 is a hydrogen atom, a linear or branched alkyl radical or a phenyl radical. R3 is a hydrogen atom, a linear or branched alkyl radical or a benzyl or phenethyl radical. R4 is a hydrogen, chlorine, fluorine or bromine atom or a linear or branched alkyl radical. R5 is a hydrogen atom, a linear or branched alkyl radical or a benzyl or phenethyl radical. R6 is a hydrogen atom, a linear or branched alkyl radical, an acyl (COR7), acyloxy (CO2R7) or acylamino (CONHR7) radical in which R7 represents a linear or branched alkyl radical, or a variously substituted phenyl radical. |