{3-[(2,2-dimethyl-1,1-diphenyl-1-silapropoxy)methyl]-(1S,3R,4S,5R)-7,7-dimethyl-2,6,8-trioxa-4-(phenylmethoxy)bicyclo[3.3.0]oct-3-yl}methan-1-ol

methyl (2E)-3-{(2S,3S)-5-oxo-3-(phenylmethoxy)-2-[(phenylmethoxy)methyl]-4(Z)-tetradecylidene[2-(2,3-dihydrofuryl)]}prop-2-enoate

1,2-di-O-acetyl-3-O-benzyl-5-O-tert-butyldiphenylsilyl-4-C-methyl-α,β-D-ribofuranose

1,2-di-O-acetyl-3-O-benzyl-5-O-tert-butyldiphenylsilyl-4-C-vinyl-α,β-D-ribofuranose

2'-O-acetyl-3'-O-benzyl-5'-O-tert-butyldiphenylsilyl-4'-C-vinyluridine

3-O-benzyl-5-O-tert-butyldiphenylsilyl-4-C-methyl-1,2-O-isopropylidene-α-D-ribofuranose

4-N-benzoyl-3'-O-benzyl-5'-O-tert-butyldiphenylsilyl-5-methyl-2'-O,4'-C-(methylenoxymethylene)cytidine

((3aR,5R,6S,6aR)-6-Benzyloxy-5-iodomethyl-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-ylmethoxy)-tert-butyl-diphenyl-silane

2'-O-acetyl-3'-O-benzyl-5'-O-tert-butyldiphenylsilyl-4'-C-methyluridine

Acetic acid (3R,4S,5S)-2-acetoxy-4-benzyloxy-5-(tert-butyl-diphenyl-silanyloxymethyl)-5-(toluene-4-sulfonyloxymethyl)-tetrahydro-furan-3-yl ester

Thiocarbonic acid O-[(2R,3R,4S,5R)-4-benzyloxy-5-(tert-butyl-diphenyl-silanyloxymethyl)-5-ethoxymethyl-2-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl] ester O-phenyl ester

2'-deoxy-5'-O-dimethoxytrityl-4'-C-ethyluridine

4-N-benzoyl-3'-O-benzyl-2'-O,4'-C-(methylenoxymethylene)cytidine

1-(2'-O-acetyl-3'-O-benzyl-5'-O-tert-butyldiphenylsilyl-4'-C-ethoxymethylene-β-D-ribo-pentofuranosyl)thymine

2′-deoxy-4′-propyluridine

3-O-benzyl-5-O-tert-butyldiphenylsilyl-4-C-vinyl-1,2-O-isopropylidene-α-D-ribofuranose

2'-deoxy-5'-O-dimethoxytrityl-4'-C-methyluridine

(3aR,5S,6S,6aR)-6-Benzyloxy-5-benzyloxymethyl-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxole-5-carbaldehyde

5-O-tert-butyldiphenylsilyl-4-C-(p-toluenesulfonyl)oxymethyl-1,2,3-tri-O-acetyl-β-D-erythro-pentofuranose