(1R,2S)-1-amino-N-(cyclopropylsulfonyl)-2-vinylcyclopropanecarboxamide 、 (1R,12E,21S,24S)-3,22-dioxo-21-propan-2-yl-2-oxa-18-thia-4,20,23,27-tetrazapentacyclo[21.2.1.14,7.116,19.06,11]octacosa-6,8,10,12,16,19(27)-hexaene-24-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19 mg的产率得到(1R,12E,21S,24S)-N-((1R,2S)-1-{[(cyclopropylsulfonyl)amino]carbonyl}-2-ethenylcyclopropyl)-21-(1-methylethyl)-3,22-dioxo-2-oxa-18-thia-4,20,23,27-tetraazapentacyclo[21.2.1.1(4,7).1(16,19).0(6,11)]octacosa-6,8,10,12,16,19(27)-hexaene-24-carboxamide