9-((1R,3R,4R,7S)-7-(benzyloxy)-1-(((tert-butyldiphenylsilyl)oxy)methyl)-2,5-dioxabicyclo[2.2.1]heptan-3-yl)-2,6-dimethoxy-9H-purine

(2R,3R,4S,5S)-4-(benzyloxy)-5-(((tert-butyldiphenylsilyl)oxy)methyl)-2-(2,6-di(furan-2-yl)-9H-purin-9-yl)-5-((tosyloxy)methyl)tetrahydrofuran-3-yl acetate

(2R,3R,4S,5S)-4-(benzyloxy)-5-(((tert-butyldiphenylsilyl)oxy)methyl)-2-(2,6-di(thiophen-2-yl)-9H-purin-9-yl)-5-((tosyloxy)methyl)tetrahydrofuran-3-yl acetate

7-((1R,3R,4R,7S)-7-(benzyloxy)-1-((tert-butyldiphenylsilyloxy)methyl)-2,5-dioxabicyclo[2.2.1]heptan-3-yl)-7H-purine-2,6-diamine

(1S,3R,4R,7S)-3-(2,6-diamino-7H-purin-7-yl)-1-(hydroxymethyl)-2,5-dioxabicyclo[2.2.1]heptan-7-ol