(1S,2R)-2-amino-N-(cyclopropylsulfonyl)-[1,1'-bi(cyclopropane)]-2-carboxamide 、 (2S,4R)-1-((S)-3,3-dimethyl-2-((1,1,1-trifluoro-2-methylpropan-2-yloxy)carbonylamino)butanoyl)-4-methoxy-4-(6-methoxynaphthalen-2-yl)pyrrolidine-2-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58%的产率得到1,1,1-trifluoro-2-methylpropan-2-yl((2S)-1-((2S,4R)-2-(((1S)-2-((cyclopropylsulfonyl)carbamoyl)-[1,1'-bi(cyclopropan)]-2-yl)carbamoyl)-4-methoxy-4-(6-methoxynaphthalen-2-yl)pyrrolidin-1-yl)-3,3-dimethyl-1-oxobutan-2-yl)carbamate