for the following products
7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylicacid, 10-(cyanomethyl)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-(3S)- | Pazufloxacin intermediate and (S)-10-Cyanomethyl-9-fluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyridine[1,2,3-de][1,4]benzoxazine-6-carboxylic acid
