氨基乙腈硫酸氢盐 、
(2S)-2-{[(benzyloxy)carbonyl]amino}-3-(1-methyl-1H-indol-3-yl)propanoic 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58%的产率得到benzyl N-[(1S)-1-[(cyanomethyl)carbamoyl]-2-(1-methyl-1H-indol-3-yl)ethyl]carbamate