1-bromocyclopropanesulfonamide 、
(1R,2S)-1-{[(2S,4R)-1-((S)-2-tert-butoxycarbonylamino-3,3-dimethyl-butyryl)-4-(7-methoxy-2-phenyl-quinolin-4-yloxy)-pyrrolidine-2-carbonyl]-amino}-2-vinyl-cyclopropanecarboxylic acid 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 、
N,N'-羰基二咪唑 作用下,
以
四氢呋喃 为溶剂,
反应 24.67h,
以83%的产率得到{(S)-1-[(2S,4R)-2-[(1R,2S)-1-(1-bromo-cyclopropanesulfonylaminocarbonyl)-2-vinyl-cyclopropylcarbamoyl]-4-(7-methoxy-2-phenyl-quinolin-4-yloxy)-pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl}-carbamic acid tert-butyl ester