5-methyl-4-oxo-3-[2-oxo-2-(pyridin-2-ylamino)ethyl]-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylic acid 的分子结构
5-methyl-4-oxo-3-[2-oxo-2-(pyridin-2-ylamino)ethyl]-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylic acid 的分子结构5-methyl-4-oxo-3-[2-oxo-2-(pyridin-2-ylamino)ethyl]-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylic acid 的分子结构