Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[(1-naphthalenylamino)carbonyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[(phenylamino)carbonyl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[(5-quinolinylamino)carbonyl]-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[(1-naphthalenylamino)carbonyl]-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[(phenylamino)carbonyl]-

Cytidine, 2′-deoxy-N-[(5-quinolinylamino)carbonyl]-

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-N-[(5-quinolinylamino)carbonyl]cytidine

3′,5′-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-deoxy-N-(phenoxycarbonyl)cytidine

2′-Deoxy-N-[(1-naphthalenylamino)carbonyl]cytidine

3′-Thymidylic acid, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(4-chlorophenyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-P-(4-chlorophenyl)thymidylyl-(3′→5′)-, 4-chlorophenyl 2-cyanoethyl ester

3′-Adenylic acid, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(4-chlorophenyl)-2′-deoxycytidylyl-(3′→5′)-P-(4-chlorophenyl)thymidylyl-(3′→5′)-N-benzoyl-2′-deoxy-, 4-chlorophenyl 2-cyanoethyl ester

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[1-(2-cyanoethoxy)ethyl]uridylyl-(3′→5′)-, 2′,3′-bis(phenoxyacetate)

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[1-(2-cyanoethoxy)ethyl]-N-(2-phenoxyacetyl)guanylyl-(3′→5′)-, 2′,3′-bis(2-phenoxyacetate)

Uridine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[1-(2-cyanoethoxy)ethyl]cytidylyl-(3′→5′)-, 2′,3′-bis(phenoxyacetate)

Uridine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[1-(2-cyanoethoxy)ethyl]adenylyl-(3′→5′)-, 2′,3′-bis(phenoxyacetate)

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[1-(2-cyanoethoxy)ethyl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[1-(2-cyanoethoxy)ethyl]-N-(2-phenoxyacetyl)-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Cytidine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[1-(2-cyanoethoxy)ethyl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Adenosine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[1-(2-cyanoethoxy)ethyl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-O-[1-(2-cyanoethoxy)ethyl]uridine