7-[4-(2-amino-1-chloroethylidene)piperidin-1-yl]-1-cyclopropyl-6-fluoro-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 在
盐酸 作用下,
以
乙醚 、
乙醇 为溶剂,
反应 0.83h,
以90%的产率得到7-[4-(2-amino-1-chloroethylidene)piperidin-1-yl]-1-cyclopropyl-6-fluoro-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride