Cytidine, 2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-Se-methyl-2′-selenocytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyuridylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-Se-methyl-2′-selenocytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyuridylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-Se-methyl-2′-seleno-

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

N-Benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-thiocytidine

Cytidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-thio-, 3′-benzoate

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

Thymidine, P-[4-(methylsulfinyl)butyl]thymidylyl-(3′→5′)-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[O-[4-(methylthio)butyl] hydrogen phosphorothioate]

3′-Thymidylic acid, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, mono[4-(methylthio)butyl] ester

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[4-(methylthio)butyl bis(1-methylethyl)phosphoramidite]

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-[4-(methylthio)butyl bis(1-methylethyl)phosphoramidite]

Cytidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-[4-(methylthio)butyl bis(1-methylethyl)phosphoramidite]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[4-(methylthio)butyl N,N-bis(1-methylethyl)phosphoramidite]

Adenosine, 2′-deoxycytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[3-[[(9,10-dihydro-9,10-dioxo-2-anthracenyl)carbonyl]amino]-1-propynyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Uridine, 2′-deoxy-5-[3-[[(9,10-dihydro-9,10-dioxo-2-anthracenyl)carbonyl]amino]-1-propynyl]-

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-5-(1-propynyl)-3′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-β-D-ribofuranosyl]-1,3-dihydro-6-methyl-2H-pyrrolo[2,3-d]pyrimidin-2-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-β-D-ribofuranosyl]-1,3-dihydro-6-methyl-2H-pyrrolo[2,3-d]pyrimidin-2-one