4-Amino-1-[6-deoxy-2-O-methyl-7-O-[(4-methylphenyl)sulfonyl]-3-O-(phenylmethyl)-β-D-allo-heptofuranosyl]-2(1H)-pyrimidinone

2-Amino-9-[6-deoxy-2-O-[2-(methylamino)-2-oxoethyl]-7-O-[(4-methylphenyl)sulfonyl]-3-O-(phenylmethyl)-β-D-allo-heptofuranosyl]-1,9-dihydro-6H-purin-6-one

2-Amino-9-[6-deoxy-2-O-(2-methoxyethyl)-7-O-[(4-methylphenyl)sulfonyl]-3-O-(phenylmethyl)-β-D-allo-heptofuranosyl]-1,9-dihydro-6H-purin-6-one

2-Amino-9-[6-deoxy-2-O-methyl-7-O-[(4-methylphenyl)sulfonyl]-3-O-(phenylmethyl)-β-D-allo-heptofuranosyl]-1,9-dihydro-6H-purin-6-one

1-[6-Deoxy-2-O-[2-(methylamino)-2-oxoethyl]-7-O-[(4-methylphenyl)sulfonyl]-3-O-(phenylmethyl)-β-D-allo-heptofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[6-Deoxy-2-O-(2-methoxyethyl)-7-O-[(4-methylphenyl)sulfonyl]-3-O-(phenylmethyl)-β-D-allo-heptofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[6-Deoxy-2-O-methyl-7-O-[(4-methylphenyl)sulfonyl]-3-O-(phenylmethyl)-β-D-allo-heptofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

9-[6-Deoxy-2-O-[2-(methylamino)-2-oxoethyl]-7-O-[(4-methylphenyl)sulfonyl]-3-O-(phenylmethyl)-β-D-allo-heptofuranosyl]-9H-purin-6-amine

9-[6-Deoxy-2-O-(2-methoxyethyl)-7-O-[(4-methylphenyl)sulfonyl]-3-O-(phenylmethyl)-β-D-allo-heptofuranosyl]-9H-purin-6-amine

4-Amino-1-[6-deoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-7-O-[(4-methylphenyl)sulfonyl]-3-O-(phenylmethyl)-β-D-allo-heptofuranosyl]-2(1H)-pyrimidinone

2-Amino-9-[6-deoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-7-O-[(4-methylphenyl)sulfonyl]-3-O-(phenylmethyl)-β-D-allo-heptofuranosyl]-1,9-dihydro-6H-purin-6-one

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

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-8′)-6′,7′,8′-triadeoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5′-thio-β-D-ribo-octofuranothymidine

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-8′)-5′-amino-5′,6′,7′,8′-tetradeoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-β-D-ribo-octofuranothymidine

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-8′)-6′,7′,8′-trideoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-β-D-ribo-octofuranothymidine

α-L-lyxo-Hexofuranothymidine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′2-6′)-5′,6′-dideoxy-5′-(2-hydroxyethyl)-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

β-D-ribo-Hexofuranothymidine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′2-6′)-5′,6′-dideoxy-5′-(2-hydroxyethyl)-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′2-6′)-5′,6′-dideoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5′-(2-hydroxyethyl)-α-L-lyxo-hexofuranothymidine

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′2-6′)-5′,6′-dideoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5′-(2-hydroxyethyl)-β-D-ribo-hexofuranothymidine

β-D-ribo-Heptofuranothymidine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′,6′-dideoxy-2′-fluoro-α-L-talofuranocytidylyl-(3′→5′-7′)-6′-deoxy-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]