1-((2R,3S,3aS,7aR)-3a-Benzyloxy-7a-benzyloxymethyl-3-methoxy-hexahydro-furo[2,3-c]pyran-2-yl)-3-benzyloxymethyl-5-methyl-1H-pyrimidine-2,4-dione

1-{(2R,3S,3aS,7aR)-7a-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-3a-hydroxy-3-methoxy-hexahydro-furo[2,3-c]pyran-2-yl}-5-methyl-1H-pyrimidine-2,4-dione

(1R,3R,4R,7S)-1-(4,4'-dimethoxytrityl)oxymethyl-7-hydroxy-7-(2-hydroxyethyl)-3-(thymin-1-yl)-2,5-dioxabicyclo[2.2.1]heptane

(1R,3R,4R,7S)-1-(4,4'-dimethoxytrityl)oxymethyl-7-hydroxy-7-(2-levulinoyloxyethyl)-3-(thymin-1-yl)-2,5-dioxabicyclo[2.2.1]heptane

1-(2-O-acetyl-3-C-allyl-3,5-di-O-benzyl-4-C-(1(S)-(benzoyloxy)allyl)-β-D-ribofuranosyl)thymine