6-iodo-9-(2-deoxy-3,5-di-(tert-butyldimethylsilyloxy)-β-D-erythro-pentofuranosyl)purine

N1-{9-[(2R,4S,5R)-4-(tert-Butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-9H-purin-6-yl}-ethane-1,2-diamine