Methyl 7-chloro-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-3-quinol inecarboxylate

环丙羧酸

环丙沙星

7-chloro-1-cyclopropyl-6-fluoro-4-oxo-N-phenyl-1,4-dihydroquinoline-3-carboxamide

1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-chloro-3-quinoline carbonyl chloride