methyl 4-hydroxy-7-methoxy-8-methylquinoline-2-carboxylate 、
tert-butyl (2S,4S)-4-(4-bromophenyl)sulfonyloxy-2-[[(1R,2S)-2-ethenyl-1-methoxycarbonylcyclopropyl]carbamoyl]pyrrolidine-1-carboxylate 在
caesium carbonate 作用下,
以
N-甲基吡咯烷酮 为溶剂,
反应 12.0h,
以42%的产率得到methyl 4-[(3R,5S)-5-[[(1R,2S)-2-ethenyl-1-methoxycarbonylcyclopropyl]carbamoyl]-1-[(2-methylpropan-2-yl)oxycarbonyl]pyrrolidin-3-yl]oxy-7-methoxy-8-methylquinoline-2-carboxylate