9-((2R,4S,5R)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxytetrahydrofuran-2-yl)-2-(3-methylureido)-9H-purin-6-yl diphenylcarbamate

9-((2R,4S,5R)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxytetrahydrofuran-2-yl)-2-(3-methylthioureido)-9H-purin-6-yl diphenylcarbamate

1-(9-((2R,4S,5R)-4-((tert-butyldimethylsilyl)oxy)-5-(((tert-butyldimethylsilyl)oxy)methyl)tetrahydrofuran-2-yl)-6-oxo-6,9-dihydro-1H-purin-2-yl)-3-methylurea

3',5'-O-di-tert-butyldimethylsilyl-2'-deoxy-7-(p-iodobenzyl)-4-desmethylwyosine

9-[(2R,4S,5R)-4-(tert-Butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-6-(4-fluoro-phenoxy)-3,9-dihydro-purin-2-one