[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-β-D-ribo-heptofuranothymidine

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-β-D-ribo-heptofuranothymidine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-β-D-ribo-heptofuranothymidine

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-β-D-ribo-heptofuranothymidine

3′-Thymidylic acid, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, mono(2-cyanoethyl) ester, 5′-ester with 1-[2,6-dideoxy-3-O-[(1,1-dimethylethyl)diphenylsilyl]-7-O-[(4-methylphenyl)sulfonyl]-β-D-ribo-heptofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,6-Dideoxy-3-O-[(1,1-dimethylethyl)diphenylsilyl]-7-O-[(4-methylphenyl)sulfonyl]-β-D-ribo-heptofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,6-Dideoxy-3-O-[(1,1-dimethylethyl)diphenylsilyl]-β-D-ribo-heptofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

5-[1,2-Bis(acetyloxy)-2-(3,4,5-trimethoxyphenyl)ethyl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyuridine

5-[1,2-Bis(acetyloxy)-2-(3,4,5-trimethoxyphenyl)ethyl]-2'-deoxyuridine

5-[1,2-Bis(acetyloxy)-2-(3,4,5-trimethoxyphenyl)ethyl]-2′-deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]uridine

2′-Deoxy-5-[1,2-dihydroxy-2-(3,4,5-trimethoxyphenyl)ethyl]-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]uridine

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5-[2-(3,4,5-trimethoxyphenyl)ethenyl]uridine

2′-Deoxy-5-[2-(3,4,5-trimethoxyphenyl)ethenyl]uridine

2′-Deoxy-5-[1,2-dihydroxy-2-(3,4,5-trimethoxyphenyl)ethyl]uridine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-4′-C-[[[4-[3-(trifluoromethyl)-3H-diazirin-3-yl]phenyl]methoxy]methyl]thymidine

4′-C-[[[4-[3-(Trifluoromethyl)-3H-diazirin-3-yl]phenyl]methoxy]methyl]thymidine

3′-O-[(1,1-Dimethylethyl)dimethylsilyl]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-4′-C-[[[4-[3-(trifluoromethyl)-3H-diazirin-3-yl]phenyl]methoxy]methyl]thymidine

5′-Deoxy-5′-[(4-ethenylbenzoyl)amino]-3′-uridylic acid

5′-Deoxy-5′-[(4-ethenylbenzoyl)amino]-2′-uridylic acid

5′-Deoxy-5′-[(4-ethenylbenzoyl)amino]uridine