1-[(2R,3S)-2-Benzyloxymethyl-3-(tert-butyl-dimethyl-silanyloxy)-5-methoxy-tetrahydro-furan-2-yl]-2,2-dimethyl-propan-1-one

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