Acetic acid (2S,3R,4R,5S,6S)-4,5-bis-benzyloxy-6-[(2R,3S,4R,5R)-5-(2-benzyloxycarbonylamino-6-oxo-1,6-dihydro-purin-9-yl)-4-hydroxy-2-hydroxymethyl-tetrahydro-furan-3-yloxy]-2-methyl-tetrahydro-pyran-3-yl ester

Acetic acid (2S,3R,4R,5S,6S)-4,5-bis-benzyloxy-6-[(2R,3R,4R,5R)-2-(2-benzyloxycarbonylamino-6-oxo-1,6-dihydro-purin-9-yl)-5-(tert-butyl-dimethyl-silanyloxymethyl)-4-hydroxy-tetrahydro-furan-3-yloxy]-2-methyl-tetrahydro-pyran-3-yl ester

Acetic acid (2S,3R,4R,5S,6S)-4,5-bis-benzyloxy-6-[(2R,3S,4R,5R)-5-(2-benzyloxycarbonylamino-6-oxo-1,6-dihydro-purin-9-yl)-2-(tert-butyl-dimethyl-silanyloxymethyl)-4-hydroxy-tetrahydro-furan-3-yloxy]-2-methyl-tetrahydro-pyran-3-yl ester

5'-deoxy-5'-N-(N-tert-butoxycarbonyl)hydroxylaminoguanosine

4-Oxo-pentanoic acid {9-[(2R,3R,4R,5R)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-6-oxo-6,9-dihydro-1H-purin-2-yl}-amide