(2R,4S,5S)-5-amino-2-[(2-fluorophenyl)methyl]-4-hydroxy-N-[(4S,5R)-5-hydroxy-4,5,6,7-tetrahydro-1-benzothiophen-4-yl]-6-[4-(6-methoxypyridin-3-yl)phenyl]hexanamide 、
N-甲氧羰基-L-叔亮氨酸 在
三乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 0.5h,
以26.97 g的产率得到methyl N-[(1S)-1-[[(1S,2S,4R)-4-[(2-fluorophenyl)methyl]-2-hydroxy-5-[[(4S,5R)-5-hydroxy-4,5,6,7-tetrahydrobenzothiophen-4-yl]amino]-1-[[4-(6-methoxy-3-pyridyl)phenyl]methyl]-5-oxo-pentyl]carbamoyl]-2,2-dimethyl-propyl]carbamate