Patent ID: 7176231

Claim:
Compounds of general formula wherein R 1 denotes a straight-chain or branched C 1-5 -alkyl group wherein the hydrogen atoms may be wholly or partly replaced by fluorine atoms, or R 2 denotes a C 1-7 -alkyl group, a phenyl group wherein two adjacent carbon atoms are linked together through a methylenedioxy or ethylenedioxy group, or a phenyl group which may be substituted by one to three fluorine or chlorine atoms or by one to three cyano, trifluoromethyl, C 1-3 -alkoxy, C 1-3 -alkoxy-carbonyl, carboxy-C 1-3 -alkyl, C 1-3 -alkoxy-carbonyl -C 1-3 -alkyl, amino-C 1-3 -alkyl or C 1-3 -alkyl-carbonylamino-C 1-3 -alkyl, groups, while the substituents are identical or different, and R 3 denotes a phenyl or naphthyl group which may be mono-, di- or trisubstituted by a fluorine, chlorine or bromine atom, by a cyano, hydroxy, carboxy, C 1-3 -alkoxy or di-(C 1-3 -alkyl)-amino-C 1-3 -alkoxy group, by a C 1-3 -alkyl group which may be substituted by a hydroxycarbonyl, C 1-3 -alkoxy-carbonyl or imidazolyl group, by an amino-C 1-3 -alkyl group which may be substituted at the nitrogen atom by one or two C 1-3 -alkyl, phenyl-C 1-3 -alkyl or C 1-4 -alkoxy-carbonyl groups, while the substituents are identical or different, by a C 1-3 -alkyl-carbonyl-amino group which may be substituted at the nitrogen atom by a C 1-3 -alkyl group or a C 2-3 -alkyl group terminally substituted by a di-(C 1-3 -alkyl)-amino group and in the alkyl moiety by a di-(C 1-3 -alkyl)-amino group, by a C 2-3 -alkyl-aminocarbonyl group terminally substituted in the alkyl moiety by a di-(C 1-3 -alkyl)-amino group which may additionally be substituted at the nitrogen atom by a C 1-3 -alkyl group, or by an imidazolyl group, while the substituents may be identical or different, while the above-mentioned alkyl groups may be straight-chain or branched, the tautomers, enantiomers, diastereomers, the mixtures thereof and the salts thereof.