116563-39-4 1H-Purine-2,6-dione, 3,7-dihydro-1,3-dimethyl-7-(1,3-dithiolan-2-ylmethyl)-, S-oxide, trans- trans-3,7-Dihydro-1,3-dimethyl-7-(1,3-dithiolan-2-ylmethyl)-1H-purine-2,6-dione S-oxide trans-7-(1,3-Dithiolan-2-ylmethyl)theophylline-1S-oxide