ethyl 6-fluoro-4-hydroxy-7-(piperazin-1-yl)quinoline-3-carboxylate

7-氯-1-乙基-6-氟-1,4-二氢-4-羰基喹啉-3-羧酸

7-氯-1-乙基-6-氟-1,4-二氢-4-氧代喹啉-3-羧酸乙酯

ethyl 1-ethyl-6-fluoro-7-(piperazin-1-yl)-4(1H)-quinolone-3-carboxylate