(3R,4R)-1-tert-butyl-4-carboxy-3-(2,4-difluoro-phenyl)pyrrolidinium chloride 在
N-羟基-7-氮杂苯并三氮唑 、
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 N-{1S}-1-[2-(4-{[(3R,4R)-1-tert-butyl-3-(2,4-difluorophenyl)piperidine-4-yl]carbonyl}piperazine-1-yl)-4-chloro-5-methylphenyl]ethyl-N-isopropylacetamide