Novel 1-R-1,4-dihydro-4-oxo-6-fluoro-7-(Z.dbd.N--)-quinolinecarboxylic acids and esters thereof, where R is amino, lower-alkylamino, 2-propenylamino or di-lower-alkylamino, R" is hydrogen or lower-alkyl, and Z.dbd.N is a heterocyclic group, useful as antibacterial agents, are prepared by reacting the corresponding 7-chloroquinoline derivatives with the appropriate heterocyclic compound, Z.dbd.NH. A preferred group of compounds are those where Z.dbd.N is 1-piperazinyl or 4-lower-alkyl-1-piperazinyl.
1-R-1,4-二氢-4-氧代-6-
氟-7-(Z.dbd.N--)-
喹啉羧酸及其
酯类,其中R为
氨基,低烷基
氨基,2-
丙烯基
氨基或二-低烷基
氨基,R"为氢或低烷基,Z.dbd.N为杂环基团,可用作抗菌剂,通过将相应的
7-氯喹啉衍
生物与适当的
杂环化合物Z.dbd.NH反应制备而成。其中,首选化合物组是Z.dbd.N为1-
哌嗪基或4-低烷基-1-
哌嗪基。