3-<4-(N,N-dimethylaminomethyl)-4-phenylpiperidin-1-yl>propylamine 、 5-(N-methylcarboxamido)-1,4-dihydro-2,6-dimethyl-4-(4-nitrophenyl)pyridine-3-carboxylic acid 在
4-二甲氨基吡啶 、
1-(3-二甲基氨基丙基)-3-乙基碳二亚胺 作用下,
生成 5-N-[3-[4-[(dimethylamino)methyl]-4-phenylpiperidin-1-yl]propyl]-3-N,2,6-trimethyl-4-(4-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxamide