1-(4-chloro-2-fluorophenyl)-1,2,3,4,6,7,8,9-octahydroimidazo[1,2-a:5,4-c']dipyridine 、
2-((2-ethyl-6-methylpyridin-3-yl)oxy)acetic acid 在
O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以23 %的产率得到1-(1-(4-chloro-2-fluorophenyl)-3,4,6,7,8,9-hexahydroimidazo-[1,2-a:5,4-c′]dipyridin-2(1H)-yl)-2-((2-ethyl-6-methylpyridin-3-yl)-oxy) ethan-1-one