3-(2,4-dimethoxybenzyl)-6-ethyl-1-[(2'-{4-[(2-methoxyethoxy)methyl]-5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl}biphenyl-4-yl)methyl]thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione 在
三氟乙酸 作用下,
反应 3.0h,
以99%的产率得到6-ethyl-1-[(2'-{4-[(2-methoxyethoxy)methyl]-5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl}biphenyl-4-yl)methyl]thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione