Guanosine, 2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-[P(S)]-P,2′-dideoxy-N-(2-methyl-1-oxopropyl)-P-(2-phenylethyl)cytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Guanosine, 2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-[P(S)]-P,2′-dideoxy-N-(2-methyl-1-oxopropyl)-P-(phenylmethyl)cytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[P-[3-(9-anthracenyl)propyl]-N,N-bis(1-methylethyl)phosphonamidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[N,N-bis(1-methylethyl)-P-[3-(1-naphthalenyl)propyl]phosphonamidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[N,N-bis(1-methylethyl)-P-(1-naphthalenylmethyl)phosphonamidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[N,N-bis(1-methylethyl)-P-(5-phenylpentyl)phosphonamidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[N,N-bis(1-methylethyl)-P-(4-phenylbutyl)phosphonamidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[N,N-bis(1-methylethyl)-P-(3-phenylpropyl)phosphonamidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[N,N-bis(1-methylethyl)-P-(2-phenylethyl)phosphonamidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[N,N-bis(1-methylethyl)-P-(phenylmethyl)phosphonamidite]

Cytidine, P-(2-cyanoethyl)thymidylyl-(3′→5′)-N-benzoyl-2′-deoxy-, 3′-(9H-fluoren-9-ylmethyl carbonate)

Thymidine, N-benzoyl-P-(2-cyanoethyl)-2′-deoxyadenylyl-(3′→5′)-, 3′-(9H-fluoren-9-ylmethyl carbonate)

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)thymidylyl-(3′→5′)-N-benzoyl-2′-deoxy-, 3′-(9H-fluoren-9-ylmethyl carbonate)

Thymidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)-2′-deoxyadenylyl-(3′→5′)-, 3′-(9H-fluoren-9-ylmethyl carbonate)

Cytidine, N-benzoyl-2′-deoxy-, 3′-(9H-fluoren-9-ylmethyl carbonate)

Cytidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-(9H-fluoren-9-ylmethyl carbonate)

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-(9H-fluoren-9-ylmethyl carbonate)

Thymidine, P-(2-cyanoethyl)-2′-deoxy-N-[[4-(1,1-dimethylethyl)phenoxy]acetyl]guanylyl-(3′→5′)-, 3′-[2-(2-nitrophenyl)propyl carbonate]

Thymidine, N-acetyl-P-(2-cyanoethyl)-2′-deoxycytidylyl-(3′→5′)-, 3′-[2-(2-nitrophenyl)propyl carbonate]

Thymidine, N-benzoyl-P-(2-cyanoethyl)-2′-deoxyadenylyl-(3′→5′)-, 3′-[2-(2-nitrophenyl)propyl carbonate]