(1R,2S)-1-amino-N-(cyclopropylsulfonyl)-2-vinylcyclopropanecarboxamide trifluoroacetic acid 、 (3R,5S,8S,11S)-8-tert-butyl-18-methoxy-11-[(2-methylpropan-2-yl)oxycarbonylamino]-7,10-dioxo-2,13-dioxa-6,9,23-triazatetracyclo[15.6.2.13,6.020,24]hexacosa-1(23),17,19,21,24-pentaene-5-carboxylic acid 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
二氯甲烷 为溶剂,
以80 mg的产率得到tert-butyl N-[(3R,5S,8S,11S)-8-tert-butyl-5-{[(1R,2S)-1-[(cyclopropanesulfonyl)carbamoyl]-2-ethenylcyclopropyl]carbamoyl}-18-methoxy-7,10-dioxo-2,13-dioxa-6,9,23-triazatetracyclo[15.6.2.1
3,6.0
20,24]hexacosa-1(23),17(25),18,20(24),21-pentaen-11-yl]carbamate