(4-Butyl-3-oxo-piperazin-1-yl)-acetic Acid 、 [3-amino-4- (3,5-difluoro-phenyl)-2-hydroxy-butyl]- (3-ethyl-benzyl)-carbamic acid benzyl ester 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 在
氢氧化锂 、
N,N-二异丙基乙胺 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 16.5h,
以40%的产率得到[3-[2-(4-butyl-3-oxo-piperazin-1-yl)-acetylamino]-4-(3, 5-difluoro-phenyl)-2-hydroxy-butyl]-(3-ethyl-benzyl)-carbamic acid benzyl ester