9-Fluoro-8-(4-hydroxypiperidin-1-yl)-5-methyl-1-oxo-1,5,6,7-tetrahydropyrido[3,2,1-ij]quinoline-2-carboxylic acid

for the following products 1H,5H-Benzo[ij]quinolizine-2-carboxylicacid, 9-fluoro-6,7-dihydro-8-(4-hydroxy-1-piperidinyl)-5-methyl-1-oxo- | Nadifloxacin and 9-Fluoro-8-(4-hydroxypiperidin-1-yl)-5-methyl-1-oxo-1,5,6,7-tetrahydropyrido[3,2,1-ij]quinoline-2-carboxylic acid