| 摘要 |
<p>1. 7-Amino-1-cyclopropyl-6,8-dialogeno-1,4-dihydro- 4-oxo-3-quinolinecarboxylic acids of the formula (I) see diagramm : EP0167763,P19,F1 in which X**1 and X**2 , which can be identical or different, represent chlorine or fluorine, but cannot both be fluorine, and R**1 and R**2 , together with the nitrogen atom to which they are bonded, form a 5- or 6-membered heterocyclic ring which can contain in addition, as ring member, the atoms or groups -O-, -S-, -SO-, -SO2 -, N-R**3 or -CO-'N-R**3 and which can optionally be monosubstituted, disubstituted or trisubstituted on the carbon atoms, by C1 -C4 -alkyl, phenyl or cyclohexyl, each of which is optionally monosubstituted, disubstituted or trisubstituted by chlorine, fluorine, bromine, methyl, phenyl, hydroxyl, methoxy, benzyloxy, nitro or piperidino, 2-thienyl, hydrooxyl, alkoxy having 1 or 3 carbon atoms, amino, methylamino or ethylamino, R**3 representing hydrogen, a branched or unbranched alkyl, alkenyl or alkinyl group having 1 to 6 carbon atoms, and which can optionally be substituted by one or two hydroxyl, alkoxy, alkylamino or dialkylamino groups having 1 to 3 carbon atoms for an alkyl radical, the cyano group, or the alkoxycarbonyl group having 1 to 4 carbon atoms in the alcohol moiety, a phenylalkyl group which is optionally substituted in in the phenyl radical and has up to 4 carbon atoms in the aliphatic moiety, a phenycyl radical which is optionally monosubstituted or disubstituted by hydroxyl, methoxy, chlorine or fluorine, or an oxoalkyl radical having up to 6 carbon atoms, furthermore denoting a radical COR**4 , CN or SO2 R**5 , R**4 representing hydrogen, straight-chain or branched alkyl which has 1 to 4 carbon atoms and is optionally substituted by 1 or 2 substituents from the group comprising amino, alkoxycarbonyl having 1 to 3 carbon atoms in the alkyl moiety, carboxyl or alkoxy having 1 to 3 carbon atoms or halogen such as chlorine, bromine or fluorine, or representing alkoxy having 1 to 4 carbon atoms, amino, alkylamino or dialkylamino having 1 to 5 carbon atoms in the alkyl moiety, and R**5 representing straight-chain or branched alkyl having 1 to 3 carbon atoms, and their pharmaceutically utilizable hydrates, acid addition salts, alkali metal, alkaline earth metal and guanidinium salts.</p> |
