4'-{[3-(2,4-dimethoxybenzyl)-6-ethyl-2,4-dioxo-3,4-dihydrothieno[2,3-d]pyrimidin-1(2H)-yl]methyl}biphenyl-2-carbonitrile 、
三氟乙酸 在
乙酸乙酯 作用下,
以
甲苯 为溶剂,
反应 2.0h,
以to give the title compound as a colorless solid (46.1 g, 100%)的产率得到4'-[(6-ethyl-2,4-dioxo-3,4-dihydrothieno[2,3-d]pyrimidin-1(2H)-yl)methyl]biphenyl-2-carbonitrile