2-Benzyloxymethyl-9-[(2R,3R,4R,5R)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-6-(2-trimethylsilanyl-ethoxy)-9H-purine

[9-[(2R,3R,4R,5R)-3,4-Bis-(tert-butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-6-(2-trimethylsilanyl-ethoxy)-9H-purin-2-yl]-methanol

Methanesulfonic acid 9-[(2R,3R,4R,5R)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-6-(2-trimethylsilanyl-ethoxy)-9H-purin-2-ylmethyl ester