2-{[(2,5-dimethylphenyl)sulfanyl]methyl}-5-methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic acid 1g

2-{[(2,5-dimethylphenyl)sulfanyl]methyl}-5-methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic acid 1g