N-(2-(2-Mercapto-4-oxo-6,7-dihydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-3(5H)-yl)ethyl)methanesulfonamide 50mg

N-(2-(2-Mercapto-4-oxo-6,7-dihydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-3(5H)-yl)ethyl)methanesulfonamide 50mg