8-Fluoro-3-methyl-9-(4-methyl-piperazin-1-yl)-6-oxo-2,3-dihydro-6H-1-oxa-3a-aza-phenalene-5-carboxylic acid
9-Fluoro-2,3-Dihydro-3-Methyl-10-(4-Methyl-1-Piperazinyl)-7-Oxo-7H-Pyrido(1,2,3-de)(1,4)benzoxazine-6-Carboxylic Acid, DL-