abstract |
1-Cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7- (alkyl-1-piperazinyl) -3-quinolinecarboxylic acids of the formula in which R 1 , R 2 , R 3 , R 4 and R 5 have the meanings given in the description, are antibacterial and are intended to be used as active ingredients in medicinal products. |