英文别名(5,6-DIMETHYL-4-OXO-3,4-DIHYDRO-THIENO[2,3-D]PYRIMIDIN-2-YL)-ACETIC ACID ETHYL ESTER; Thieno[2,3-d]pyrimidine-2-aceticacid, 1,4-dihydro-5,6-dimethyl-4-oxo-, ethyl ester; 1,4-Dihydro-5,6-dimethyl-4-oxo-thieno[2,3-d]pyrimidin-2-acetic acid ethyl ester; ethyl 2-(5,6-dimethyl-4-oxo-3H-thieno[2,3-d]pyrimidin-2-yl)acetate; Ethyl 2-{5,6-Dimethyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidin-2-yl}acetate; Ethyl 1,4-dihydro-5,6-dimethyl-4-oxothieno[2,3-d]pyrimidine-2-acetate; Ethyl 1,4-dihydro-5,6-dimethyl-4-oxothieno2,3-dpyrimidin-2-acetate 
