1-<2-O-(4-methoxytrityl)-β-D-galactopyranosyl>uracil

1-{(2R,3R,4R,4aR,10aR)-4-Hydroxy-6,6,8,8-tetraisopropyl-3-[(4-methoxy-phenyl)-diphenyl-methoxy]-hexahydro-1,5,7,9-tetraoxa-6,8-disila-benzocycloocten-2-yl}-1H-pyrimidine-2,4-dione

[1-(β-D-galactopyranosyl)uracil]-2'-spiro-5''-(4''-amino-1'',2''-oxathiole-2'',2''-dioxide)

1-(6'-O-t-butyldimethylsilyl-3',4'-O-isopropylidene-β-D-lyxo-hexopyranosyl-2'-ulose)uracil