2-amino-9-(3',5'-di-O-tert-butyldimethylsilyl-2'-deoxy-β-D-ribofuranosyl)-6-vinylpurine

9-[(2R,4S,5R)-4-(tert-Butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-6-((E)-2-trimethylsilanyl-vinyl)-9H-purin-2-ylamine

N-[9-[(2R,4S,5R)-4-(tert-Butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-6-((E)-2-trimethylsilanyl-vinyl)-9H-purin-2-yl]-isobutyramide

4-{2-[2-Amino-9-((2R,4S,5R)-4-hydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-9H-purin-6-yloxy]-ethylamino}-1-((2R,4S,5R)-4-hydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-1H-pyrimidin-2-one

1-((2R,4S,5R)-4-Hydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-4-{2-[9-((2R,4S,5R)-4-hydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-2-(trityl-amino)-9H-purin-6-yloxy]-ethylamino}-1H-pyrimidin-2-one