1-[(2R,4S,5R)-5-Aminomethyl-4-(tert-butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-5-methyl-1H-pyrimidine-2,4-dione

3',5'-O-(bis-tetrahydropyranyl)-4'-C-hydroxymethylthymidine

1-[(2R,4S,5R)-5-Methoxymethyl-4-(tetrahydro-pyran-2-yloxy)-5-(tetrahydro-pyran-2-yloxymethyl)-tetrahydro-furan-2-yl]-5-methyl-1H-pyrimidine-2,4-dione

N-[(2R,3S,5R)-3-(tert-Butyl-dimethyl-silanyloxy)-2-(tert-butyl-dimethyl-silanyloxymethyl)-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-2-ylmethyl]-2,2,2-trifluoro-acetamide

Benzoic acid (2S,3S,5R)-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-3-(tetrahydro-pyran-2-yloxy)-2-(tetrahydro-pyran-2-yloxymethyl)-tetrahydro-furan-2-ylmethyl ester