(1R,2S)-1-amino-N-(cyclopropylsulfonyl)-2-vinylcyclopropanecarboxamide 、
4-[methyl-(2-phenyl-quinoline-4-carbonyl)-amino]-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 在
N,N-二异丙基乙胺 、 ((3H-[1,2,3]triazolo[4,5-b]pyridin-3-yl)oxy)tri(pyrrolidin-1-yl)phosphonium hexafluorophosphate(V) 作用下,
以
乙腈 为溶剂,
以54%的产率得到2-(1-cyclopropanesulfonylaminocarbonyl-2-vinyl-cyclopropylcarbamoyl)-4-[methyl-(2-phenyl-quinoline-4-carbonyl)-amino]-pyrrolidine-1-carboxylic acid tert-butyl ester