N-{9-[(2R,4S,5R)-4-(tert-Butyl-dimethyl-silanyloxy)-5-(2,2-dimethyl-propionyl)-5-hydroxymethyl-tetrahydro-furan-2-yl]-9H-purin-6-yl}-benzamide

N-{9-[(2R,4S,5R)-5-Benzyloxymethyl-4-(tert-butyl-dimethyl-silanyloxy)-5-(2,2-dimethyl-propionyl)-tetrahydro-furan-2-yl]-9H-purin-6-yl}-benzamide

N-{9-[(2R,4S,5R)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-(tert-butyl-dimethyl-silanyloxy)-5-(2,2-dimethyl-propionyl)-tetrahydro-furan-2-yl]-9H-purin-6-yl}-benzamide

(2R,3S,5R)-5-(4-Amino-2-oxo-2H-pyrimidin-1-yl)-2-benzyloxymethyl-3-(tert-butyl-dimethyl-silanyloxy)-tetrahydro-furan-2-carboxylic acid methyl ester