1-(3-aminopropyl)-4-(2,4-difluorophenyl)-piperidine-4-carbonitrile dihydrochloride 、
(-)-4-(3,4-difluorophenyl)-1,6-dimethyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid 在
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
溶剂黄146 为溶剂,
生成 (R)-4-(3,4-difluorophenyl)-1,6-dimethyl-2-oxo-1,2,3,4-tetrahydro-pyrimidine-5-carboxylic acid {3-[4-(2,4-difluorophenyl)-4-cyano-piperidine-1-yl]-propyl}-amide