(RS)-1-cyclopropyl-6-fluoro-5-methyl-7-(3-methylpiperazin-1-yl)- 4-oxo-quinoline- 3-carboxylic acid
3-quinolinecarboxylic acid, 1-cyclopropyl-6-fluoro-1,4-dihydro-5-methyl-7-(3-methyl-1-piperazinyl)-4-oxo-