ethyl 5-hydroxy-2-(methylthio)thieno[2,3-d]pyrimidine-6-carboxylate

Ethyl 5-hydroxy-2-methylsulfanyl-thieno[2,3-d]pyrimidine-6-carboxylate

5-Hydroxy-2-methylsulfanylthieno[2,3-d]pyrimidine-6-carboxylic acid ethyl ester