for the following products
(+/-)9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de][1,4]lbenzoxazine-6-carboylic | Ofloxacin acid | Oxygen-fluorine acid and 9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyroido(1,2,3-de)(1,4)benzoxazine-6-carboxylic acid
