(3S,4R)-1-叔丁基-4-(2,4-二氟苯基)吡咯烷-3-羧酸 、
Ethyl 2-piperazin-1-ylbenzoate;hydrochloride 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
DMF (N,N-dimethyl-formamide) 为溶剂,
生成 ethyl 2-[4-[(3S,4R)-1-tert-butyl-4-(2,4-difluorophenyl)pyrrolidine-3-carbonyl]piperazin-1-yl]benzoate