Patent Document ID: 4725581
Application ID: 06892345
Patent Flag: 1

Claim One:
1. Compounds of the general formula I ##STR15## in which: A represents a 2-oxo-5-tetrahydrofuryl, 2-oxo-5-pyrrolidinyl or 2-oxo-6-piperidinyl grouping optionally substituted at the nitrogen atom by a straight-chain or branched alkyl grouping having from 1 to 4 carbon atoms, or represents a 2,6-dioxo-1,2,3,6-tetrahydro-4-pyrimidinyl grouping, B represents, together with the carbon and nitrogen atom to which it is attached, a saturated polycyclic structure selected from the group comprising perhydroindole, perhydroisoindole, perhydroquinoline, pethydroisoquinoline, cyclopenta[b]pyrrole and 2-azabicyclo[2,2,2]octane, R.sub.1 represents a hydrogen atom, a straight-chain or branched alkyl radical having from 1 to 4 carbon atoms, or an (imidazol-4-yl)methyl group optionally substituted at one of the nitrogen atoms by a straight-chain or branched alkyl radical having from 1 to 4 carbon atoms or by a benzyloxycarbonyl, 2,4-dinitrophenyl, fluorenomethoxycarbonyl, tosyl or benzyl radical, R.sub.2 and R.sub.3, which may be the same or different, each represents a hydrogen atom or an alkyl radical having from 1 to 4 carbon atoms, or, in conjunction with the nitrogen atom to which they are attached, together form a 1-pyrrolidinyl, 1-piperidinyl, 4-morpholinyl or 4-(C.sub.1-4 -alkyl)-1-piperazinyl radical, the enantiomers and diastereoisomers thereof, and also, when R.sub.1 represents an (imidazol-4-yl)methyl group optionally substituted by an alkyl radical, or when R.sub.2 and R.sub.3 represent an N-alkyl-1-piperazinyl radical, the addition salts thereof with a pharmaceutically acceptable acid.