2',3',5'-Tris-O-[(1,1-dimethylethyl)dimethylsilyl]-6-S-(1-oxido-2-pyridinyl)-6-thioguanosine

2'-Deoxy-3',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-6-S-(1-oxido-2-pyridinyl)-6-thioguanosine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-6-S-(1-oxido-2-pyridinyl)-N-(2-phenoxyacetyl)-6-thioguanosine

2'-Deoxy-6-S-(1-oxido-2-pyridinyl)-N-(2-phenoxyacetyl)-6-thioguanosine

2'-Deoxy-3',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-6-S-(1-oxido-2-pyridinyl)-N-(2-phenoxyacetyl)-6-thioguanosine

2'-Deoxy-6-S-2-pyridinyl-6-thioguanosine

2'-Deoxy-3',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-6-S-2-pyridinyl-6-thioguanosine

2',3',5'-Tris-O-[(1,1-dimethylethyl)dimethylsilyl]-6-S-2-pyridinyl-6-thioguanosine

Thymidylyl-(3'→5')-2'-O-methylcytidylyl-(3'→5')-2'-O-methyladenylyl-(3'→5')-2'-O-methyladenylyl-(3'→5')-2'-O-methyladenylyl-(3'→5')-2'-O-methyladenosine

N-Benzoyl-2',3'-dideoxy-5'-O-[(1,1-dimethylethyl)diphenylsilyl]-4'-C-ethynylcytidine

2',3'-O-[(1R)-2-Carboxyethylidene]-5-methyluridine

5-Chloro-4-thiouridine

3'-Deoxy-3'-[(2E)-3-(diethoxyphosphinyl)-2-propen-1-yl]-2',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyluridine

3'-Deoxy-3'-(2,3-dihydroxypropyl)-2',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyluridine

3',5'-O-[Bis(1,1-dimethylethyl)silylene]-5-methyluridine

3',5'-O-[Bis(1,1-dimethylethyl)silylene]-2'-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyluridine

2'-Deoxy-2'-[(2E)-3-(diethoxyphosphinyl)-2-propen-1-yl]-5-methyluridine

1-(2-Deoxy-β-D-erythro-pentofuranosyl)-2,3-dihydro-7-methyl-1H-benzotriazole

2'-Deoxy-2'-methylcytidine 5'-(tetrahydrogen triphosphate)

1-[2-Deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-4-nitro-1H-benzimidazole