3,4-亚甲二氧基苄胺 、
methyl 4-(4-chloro-6-methyl-thieno-[2,3-d]-pyrimidin-2-yl)-benzoate 以yields 4-[4-(3,4-methylenedioxybenzylamino)-6-methyl-thieno-[2,3-d]-pyrimidin-2-yl]-benzoic acid methylester的产率得到methyl 4-[4-(3,4-methylenedioxybenzylamino)-6-methyl-thieno-[2,3-d]-pyrimidin-2-yl]-benzoate