(1R,2S)-1-amino-N-(cyclopropylsulfonyl)-2-vinylcyclopropanecarboxamide 、 (5R,7S,10S,12R)-10-isopropyl-3,9-dioxo-12-(trifluoromethyl)-6,7,9,10,11,12,13,14,15,16,17,18-dodecahydro-1H,5H-2,22:5,8-dimethano-4,2,8,11-benzoxatriazacycloicosine-7-carboxylic acid 在
4-二甲氨基吡啶 、 O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 14.08h,
以12 mg的产率得到(5R,7S,10S,12R)-N-{(1R,2S)-1-[(cyclopropylsulfonyl)carbamoyl]-2-ethenylcyclopropyl}-3,9-dioxo-10-(propan-2-yl)-12-(trifluoromethyl)-6,7,9,10,11,12,13,14,15,16,17,18-dodecahydro-1H,5H-2,22:5,8-dimethano-4,2,8,11-benzoxatriazacycloicosine-7(3H)-carboxamide