cis-5-Amino-1-cyclopropyl-7-(3,5-dimethyl-1-piperazinyl)-6,8-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid
5-amino-1-cyclopropyl-7-(cis-3,5-dimethyl-1-piperazinyl)- 6,8-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid