9-Fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-3,7-dihydro-2H-[1,3,4]oxadiazino[6,5,4-ij]quinoline-6-carboxylic acid

9-Fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-3,7-dihydro-2H-[1,3,4]oxadiazino[6,5,4-ij]quinoline-6-carboxylic acid