甲醇 、
6-(5-acetyl-4-amino-6-methylpyrimidin-2-yl)-5-methyl-2-phenyl-4-(pyrrolidin-1-yl)thieno[2,3-d]pyrimidine 、
草酸二乙酯 在
sodium methylate 作用下,
反应 2.0h,
以41%的产率得到methyl 4-methyl-2-[5-methyl-4-(pyrrolidin-1-yl)-2-phenylthieno[2,3-d]pyrimidin-6-yl]-5,8-dihydro-5-oxopyrido[2,3-d]pyrimidine-7-carboxylate