2-甲基咪唑 、 5-chloro-6-methyl-4-(3,4-methylenedioxyphenethylamino)-thieno-[2,3-d]-pyrimidine 以gives 2-(2-methylimidazol-1-yl)-6-methyl-4-(3,4-methylenedioxyphenethylamino)-thieno-[2,3-d]-pyrimidine的产率得到2-(2-methylimidazol-1-yl)-6-methyl-4-(3,4-methylenedioxyphenethylamino)thieno[2,3-d]pyrimidine