3-[(benzyloxy)methyl]-1-(β-D-ribofuranosyl)uracil

3-Benzyloxymethyl-1-[(2R,3S,5R)-3-(tert-butyl-dimethyl-silanyloxy)-5-hydroxymethyl-4-oxo-tetrahydro-furan-2-yl]-1H-pyrimidine-2,4-dione

2'-O-(2-hydroxyethyl)-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)uridine

Carbonic acid 2-[(2R,3R,4R,5R)-5-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-2-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-4-hydroxy-tetrahydro-furan-3-yloxy]-ethyl ester 9H-fluoren-9-ylmethyl ester

3-Benzyloxymethyl-1-[(2R,3S,5R)-3-(tert-butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-4-oxo-tetrahydro-furan-2-yl]-1H-pyrimidine-2,4-dione

1-[(2R,3R,3aR,7aR)-3-(tert-Butyl-dimethyl-silanyloxy)-3a-hydroxy-5-oxo-hexahydro-furo[2,3-c]pyran-2-yl]-1H-pyrimidine-2,4-dione