1-cyclopropyl-6-fluoro-8-methoxy-7-[4-(3-oxobutyl)-3-methylpiperazin-1-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 、
苯肼 以
甲醇 为溶剂,
以70%的产率得到1-cyclopropyl-6-fluoro-8-methoxy-7-{4-[3-(phenylhydrazono)butyl]-3-methylpiperazin-1-yl}-4-oxo-1,4-dihydroquinoline-3-carboxylic acid