Benzodiazepine derivatives, their preparation and medicaments containing them.

摘要

Compounds of formula: in which R1 represents a hydrogen or halogen atom or an alkyl, alkoxy, alkylthio, nitro, hydroxyl or cyano radical; R2 represents an alkyl radical or a chain -CH(R5)-CO-R6; R3 represents (a) a phenyl radical substituted by one or more substituents chosen from the radicals -alk-SO3H, -alk-PO3H2, -CH=NOH, -CH=NO-alk-COOX, -S-alk-COOX, -SO-alk-COOX, -SO2-alk-COOX, -CH=CH-COOX, -alk-CO-NHOH, -C(=NOH)-COOX, -alk-N(OH)-CO-alk, -alk-SO2H, -CH=CH-SO3H, -C(COOX)=N-O-alk-COOX or tetrazolylalkyl or a group of formula: or (b) a ring of formula: in which R9 represents a radical =NOX, =NO-alk-COOX, =CH-COOX, -alk-COOX, -alk-SO2H or -alk-SO3H, R10 represents an oxygen or sulphur atom or a methylene or alkylimino radical, and R11 represents a methylene or ethylene radical, R4 represents a pyridyl or phenyl radical optionally substituted by one or more substituents chosen from halogen atoms and alkyl, alkoxy, hydroxyl, carboxyl, nitro and -CO-NR6 radicals, alk represents an alkyl or alkylene radical and X represents a hydrogen atom or an alkyl radical, their salts, their preparation and the medicaments containing them.