7-[3-(tert-butoxycarbonylamino-methyl)-pyrrolidin-1-yl]-1-cyclopropyl-8-methoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid difluoroborate ester 在
三乙胺 作用下,
以
乙醇 为溶剂,
反应 24.0h,
以96%的产率得到7-[3-(tert-butoxycarbonylamino-methyl)-pyrrolidin-1-yl]-1-cyclopropyl-8-methoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid