(alphaS)-alpha-氨基环己烷乙酸叔丁酯盐酸盐 、
4-nitro-2-({[(2,4,6-trimethylphenyl)amino]carbonyl}amino)benzoic 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67%的产率得到1,1-dimethylethyl (2S)-cyclohexyl-({[4-nitro-2-({[(2,4,6-trimethylphenyl)amino]carbonyl}amino)phenyl]carbonyl}amino)ethanoate