| 英文同义词: | Levofloxacin Impurity 22;3-Quinolinecarboxylic acid, 6,8-difluoro-1,4-dihydro-1-[(1S)-2-hydroxy-1-methylethyl]-7-(4-methyl-1-piperazinyl)-4-oxo-, ethyl ester;6,8-Difluoro-1-[2-hydroxy-1(S)-methylethyl]-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ethyl ester |