(1R,2S)-1-amino-N-(cyclopropylsulfonyl)-2-vinylcyclopropanecarboxamide 、 (1R,22S,25S)-22-tert-butyl-3,23-dioxo-2-oxa-19-thia-4,21,24,28-tetrazapentacyclo[22.2.1.14,7.117,20.06,11]nonacosa-6(11),7,9,17,20(28)-pentaene-25-carboxylic acid 在
2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate 、
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 12.0h,
以50 mg的产率得到(1R,22S,25S)-N-((1R,2S)-1-{[(cyclopropylsulfonyl)amino]carbonyl}-2-ethenylcyclopropyl)-22-(1,1-dimethylethyl)-3,23-dioxo-2-oxa-19-thia-4,21,24,28-tetraazapentacyclo[22.2.1.1(4,7).1(17,20).0(6,11)]nonacosa-6,8,10,17,20(28)-pentaene-25-carboxamide