methyl (2S)-{[(3-amino-4-biphenylyl)carbonyl]amino}(cyclohexyl)-ethanoate 、
2,4,6-trichlorophenylacetic acid 在
N,N-二异丙基乙胺 、 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,
以31%的产率得到methyl (2S)-cyclohexyl-{[(3-{[(2,4,6-trichlorophenyl)acetyl]amino}-4-biphenylyl)carbonyl]amino}ethanoate