(1R,4S,5R)-endo-N,N-dimethyl-2-azabicyclo<2.2.1>heptane-5-methanamine 、
Difluoroboranyl 7-chloro-1-(2,4-difluorophenyl)-6-fluoro-4-oxoquinoline-3-carboxylate 以
二甲基亚砜 为溶剂,
反应 3.0h,
生成 6-fluoro-1-(2,4-difluorophenyl)-1,4-dihydro-7-(endo(1R,4S,5R)-5-dimethylaminomethyl-2-azabicyclo<2.2.1>hept-2-yl)-4-oxo-quinoline-3-carboxylic acid