5'-O-(4,4'-dimethoxytrityl)-2'-O,4'-C-methyleneuridine

(1S,3R,4R,7S)-7-benzyloxy-1-benzyloxymethyl-3-(uracil-1-yl)-2,5-dioxabicyclo[2.2.1]heptane

((3aS,6R,6aR)-6-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4,4-diyl)bis(methylene) bis(4-methylbenzenesulfonate)

1-((2R,3R,4S,5R)-4-Benzyloxy-5-benzyloxymethyl-3-hydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-1H-pyrimidine-2,4-dione

Benzoic acid (1R,3R,4R,7S)-3-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-7-hydroxy-2,5-dioxa-bicyclo[2.2.1]hept-1-ylmethyl ester

1-(4-C-acetoxymethyl-2-O-acetyl-3,5-di-O-benzyl-β-D-ribofuranosyl)uracil