(1r,2s)-1-氨基-2-乙烯-环丙烷羧酸乙酯 、
(2S,4R)-4-[7-methoxy-2-(5,6,7,8-tetrahydroquinolin-2-yl)quinolin-4-yl]oxy-1-[(2S)-3-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]butanoyl]pyrrolidine-2-carboxylic acid 在
N-甲基吗啉 、
1-羟基苯并三唑 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
二氯甲烷 为溶剂,
以72%的产率得到ethyl (1R,2S)-2-ethenyl-1-[[(2S,4R)-4-[7-methoxy-2-(5,6,7,8-tetrahydroquinolin-2-yl)quinolin-4-yl]oxy-1-[(2S)-3-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]butanoyl]pyrrolidine-2-carbonyl]amino]cyclopropane-1-carboxylate