(1R,2S)-1-amino-N-(cyclopropylsulfonyl)-2-vinylcyclopropanecarboxamide 、
(3R,5S,8S)-8-isopropyl-7-oxo-2-oxa-11-thia-6,9,24,27-tetraazapentacyclo[16.6.2.1(3,5).1(10,13).0(21,25)]octacosa-1(24),10(27),12,18,20,22,25-heptaene-5-carboxylic acid 在
2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate 、
N,N-二异丙基乙胺 作用下,
反应 12.0h,
以47 mg的产率得到(3R,5S,8S)-N-((1R,2S)-1-{[(cyclopropylsulfonyl)amino]carbonyl}-2-vinylcyclopropyl)-8-isopropyl-7-oxo-2-oxa-11-thia-6,9,24,27-tetraazapentacyclo[16.6.2.1(3,5).1(10,13).0(21,25)]octacosa-1(24),10(27),12,18,20,22,25-heptaene-5-carboxylate