1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-[4-(2,3-dichlorophenyl)piperazin-1-yl]-3-[N-(4-chlorobenzalhydrazinyl)-carbonyl]quinoline 、
巯基乙酸 在
zinc(II) chloride 作用下,
以
1,4-二氧六环 为溶剂,
以59%的产率得到N-[2-(4-chlorophenyl)-4-oxo-1,3-thiazolidin-3-yl]-1-cyclopropyl-7-[4-(2,3-dichlorophenyl)piperazin-1-yl]-6-fluoro-4-oxoquinoline-3-carboxamide