2-Amino-9-((1S,3R,4R,7S)-7-hydroxy-1-(hydroxymethyl)-2,5-dioxabicyclo[2.2.1]heptan-3-yl)-1,9-dihydro-6H-purin-6-one

2-Amino-9-((1S,3R,4R,7S)-7-hydroxy-1-(hydroxymethyl)-2,5-dioxabicyclo[2.2.1]heptan-3-yl)-1,9-dihydro-6H-purin-6-one