565166-96-3

methyl 2-(chloromethyl)-4-hydroxy-5-methylthieno[2,3-d]pyrimidine-6-carboxylate methyl 2-(chloromethyl)-5-methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylate methyl 2-(chloromethyl)-5-methyl-4-oxo-3~{H}-thieno[2,3-d]pyrimidine-6-carboxylate Thieno[2,3-d]pyrimidine-6-carboxylic acid, 2-(chloromethyl)-1,4-dihydro-5-methyl-4-oxo-, methyl ester