哌嗪 、 4-chloro-2-(methylthio)-7-(phenylmethyl)-5,6,7,8-tetrahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidine-5-carboxylic acid methyl ester 以
乙醇 为溶剂,
反应 1.0h,
以46%的产率得到2-(methylthio)-7-(phenylmethyl)-4-(1-piperazinyl)-5,6,7,8-tetrahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidine-5-carboxylic acid methyl ester