1-CYCLOPROPYL-6-FLUORO-1,4-DIHYDRO-4-OXO-7-(3-OXO-1- PIPERAZINYL)-3-QUINOLINECARBOXYLIC ACIDS, PROCESS FOR THEIR PREPARATION AND ANTIBACTERIAL AGENTS CONTAINING THEM

摘要

1-Cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(3-oxo-1-piperazinyl)-3-quinolinecarboxylic acids, process for their preparation and antibacterial agents containing them Novel antibacterially active 1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(3-oxo-1-piperazinyl)-3-quinoline-carboxylic acids of the formula in which R1 is hydrogen, methyl or ethyl, and R2 is hydrogen or fluorine, and pharmaceutically tolerable hydrates and salts thereof.