882252-38-2

1-(1,1-dioxidotetrahydrothien-3-yl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyriMidin-4-one 3-{4-oxo-1H,4H,5H-pyrazolo[3,4-d]pyriMidin-1-yl}-1$l {6}-thiolane-1,1-dione