[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′-7′)-6′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-α-L-lyxo-heptofuranothymidine

[P(R)]-N-Benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxyadenylyl-(3′→5′-7′)-6′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-β-D-ribo-heptofuranothymidine

[P(R)]-N-Benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxycytidylyl-(3′→5′-7′)-6′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-β-D-ribo-heptofuranothymidine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′-7′)-6′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-β-D-ribo-heptofuranothymidine

[P(S)]-N-Benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxyadenylyl-(3′→5′-7′)-6′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-β-D-ribo-heptofuranothymidine

[P(S)]-N-Benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxycytidylyl-(3′→5′-7′)-6′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-β-D-ribo-heptofuranothymidine

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′-7′)-6′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-β-D-ribo-heptofuranothymidine

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

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

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

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

[P(R)]-Thymidylyl-(3′→5′-7′)-6′-deoxy-β-D-ribo-heptofuranothymidine

[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