105219-73-6

ethyl 2-(5,6-dimethyl-4-oxo-3H-thieno[2,3-d]pyrimidin-2-yl)acetate Ethyl 1,4-dihydro-5,6-dimethyl-4-oxothieno2,3-dpyrimidin-2-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 2-(5,6-diMethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyriMidin-2-yl)acetate 1,4-Dihydro-5,6-dimethyl-4-oxo-thieno[2,3-d]pyrimidin-2-acetic acid ethyl ester Thieno[2,3-d]pyriMidine-2-aceticacid, 1,4-dihydro-5,6-diMethyl-4-oxo-, ethyl ester