7-[3-(tert-Butoxycarbonylamino)pyrrolidin-1-yl]-1-cyclopropyl-6,8-difluoro-1,4-dihydro-5-(p-methoxybenzylamino)-4-oxoquinoline-3-carboxylic acid 在
盐酸 作用下,
以
甲苯 为溶剂,
以90%的产率得到5-Amino-7-(3-aminopyrrolidin-1-yl)-1-cyclopropyl-6,8-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid hydrochloride monohydrate