N-methyl-N-(4,6-dimethyl-pyridin-2-yl)benzimidazole-2-carboxamide 、 2-[4-(3,4-dimethoxybenzoyl)-1-piperazinyl]ethyl chloride 在
ammonium chloride 作用下,
以
二甲基亚砜 为溶剂,
生成
N-Methyl-N-(4,6-dimethyl-pyridin-2-yl)-1-[2-(4-(3,4-dimethoxybenzoyl)-1-piperazinyl)ethyl]benzimidazole-2-carboxamide