达氟沙星

1-环丙基-6-氟-4-氧代-7-(3-氧代哌嗪-1-基)喹啉-3-羧酸

1-cyclopropyl-7-(3,5-dimethylpiperazin-1-yl)-6-fluoro-4-oxoquinoline-3-carboxylic acid