3-hexyl-5,6,7,8-tetrahydrobenzothieno[2,3-d]pyrimidin-2,4(1H,3H)-dione 、
sodium;hydride 、
溴乙酸乙酯 以
氯仿 为溶剂,
以Then 1.2 g of 1-ethoxycarbonylmethyl-3-hexyl-5,6,7,8-tetrahydrobenzothieno[2,3-d]pyrimidin-2,4(1H,3H)-dione was obtained in a yield of 77%的产率得到1-ethoxycarbonylmethyl-3-hexyl-5,6,7,8-tetrahydrobenzothieno[2,3-d]pyrimidin-2,4(1H,3H)-dione