N-(3-amino-6-tert-butyl-4-oxothieno[3,2-d]pyrimidin-2-yl)-4-chloro-5-methyl-2-sulfanylbenzenesulfonamide N-(3-amino-6-tert-butyl-4-oxo-thieno[3,2-d]pyrimidin-2-yl)-4-chloro-5-methyl-2-sulfanyl-benzenesulfonamide N-(3-amino-6-tert-butyl-4-oxo-2-thieno[3,2-d]pyrimidinyl)-4-chloro-2-mercapto-5-methylbenzenesulfonamide N-(3-amino-6-tert-butyl-4-keto-thieno[3,2-d]pyrimidin-2-yl)-4-chloro-2-mercapto-5-methyl-benzenesulfonamide N-(3-Amino-3,4-dihydro-6-tert-butyl-4-oxothieno[2,3-e]pyrimi din-2-yl)-4-chloro-2-mercapto-5-methylbenzenesulfonamide NSC725837