1H-Purine-2,6-dione, 3,7-dihydro-7-(4-(acetyloxy)-3,6-dihydro-6-methyl-3-oxo-2H-pyran-2-yl)-1,3-dimethyl-, (2S-cis)- 39848-20-9 7-(3'-O-Acetyl 4',6'-dideoxy-beta-L-glycero-hex-3'-enopyranosulosyl)theophylline