Guanosine, 2′-deoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxy-

Cytidine, 3′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-

N-[9-[3-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-iodo-β-D-xylofuranosyl]-9H-purin-6-yl]benzamide

N-[1-[3-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-iodo-β-D-xylofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]-2-methylpropanamide

N′-[9-[3-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-iodo-β-D-xylofuranosyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-N,N-dimethylmethanimidamide

Adenosine, 2′,3′-anhydro-N-benzoyl-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Cytidine, 2′,3′-anhydro-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-

Thymidine, P-(2-cyanoethyl)thymidylyl-(3′→5′)-P-(2-cyanoethyl)thymidylyl-(3′→5′)-P-(2-cyanoethyl)-1-[(2,2-dimethyl-1-oxopropoxy)methyl]-α-[(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)oxy]thymidylyl-(3′→5′)-P-(2-cyanoethyl)thymidylyl-(3′→5′)-P-(2-cyanoethyl)thymidylyl-(3′→5′)-

Guanosine, 2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite] 6-(diphenylcarbamate) 5′-[3-(trifluoromethyl)phenyl carbonate]

Adenosine, N-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite] 5′-[3-(trifluoromethyl)phenyl carbonate]

Adenosine, N-benzoyl-2′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite] 5′-[3-(trifluoromethyl)phenyl carbonate]

Cytidine, N-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite] 5′-[3-(trifluoromethyl)phenyl carbonate]

Cytidine, 2′-deoxy-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite] 5′-[3-(trifluoromethyl)phenyl carbonate]

Cytidine, N-benzoyl-2′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite] 5′-[3-(trifluoromethyl)phenyl carbonate]

Thymidine, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite] 5′-[3-(trifluoromethyl)phenyl carbonate]

Guanosine, 2′-deoxy-N-(2-methyl-1-oxopropyl)-, 6-(diphenylcarbamate) 5′-[3-(trifluoromethyl)phenyl carbonate]

Adenosine, N-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 5′-[3-(trifluoromethyl)phenyl carbonate]

Adenosine, N-benzoyl-2′-deoxy-, 5′-[3-(trifluoromethyl)phenyl carbonate]

Cytidine, N-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 5′-[3-(trifluoromethyl)phenyl carbonate]

Cytidine, 2′-deoxy-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, 5′-[3-(trifluoromethyl)phenyl carbonate]