9-cyclopropyl-6,7-difluoro-8-methoxy-[1,2]thiazolo[5,4-b]quinoline-3,4-dione

ethyl 1-cyclopropyl-6,7-difluoro-2-mercapto-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylate

9-cyclopropyl-7-(2,4-dimethoxybenzylamino)-6-fluoro-8-methoxy-9H-isothiazolo[5,4-b]quinoline-3,4-dione

2,4,5-三氟-3-甲氧基苯甲酸

2,4,5-三氟-3-甲氧基苯甲酰氯