3-bromo-4-chloro-5-methyl-1H-pyrrole-2-carboxylic acid 、
ethyl (-)-cis-4-amino-3-methoxy-1-piperidinecarboxylate 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
二氯甲烷 为溶剂,
生成 (3S,4R)-4-(((3-bromo-4-chloro-5-methyl-1H-pyrrol-2-yl)carbonyl)amino)-3-methoxypiperidine-1-carboxylate