Guanosine, thymidylyl-(3′→5′)-N-benzoyl-2′-deoxy-2-[(2-methyl-1-oxopropyl)amino]adenylyl-(3′→5′)-thymidylyl-(3′→5′)-N-benzoyl-2′-deoxy-2-[(2-methyl-1-oxopropyl)amino]adenylyl-(3′→5′)-N-benzoyl-2′-deoxycytidylyl-(3′→5′)-6-O-(2-cyanoethyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)-

Guanosine, thymidylyl-(3′→5′)-N-benzoyl-2′-deoxy-2-[(2-methyl-1-oxopropyl)amino]adenylyl-(3′→5′)-N-benzoyl-2′-deoxycytidylyl-(3′→5′)-6-O-(2-cyanoethyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)-

Guanosine, N-benzoyl-2′-deoxycytidylyl-(3′→5′)-6-O-(2-cyanoethyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)-

3′-Adenylic acid, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxyuridylyl-(3′→5′)-N-benzoyl-2′-deoxy-2-[(2-methyl-1-oxopropyl)amino]-

3′-Guanylic acid, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-N-(2-methyl-1-oxopropyl)-6-O-[2-(4-nitrophenyl)ethyl]-

3′-Guanylic acid, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxycytidylyl-(3′→5′)-6-O-(2-cyanoethyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)-

3′-Adenylic acid, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′)-N-benzoyl-2′-deoxy-2-[(2-methyl-1-oxopropyl)amino]-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxyuridylyl-(3′→5′)-N-benzoyl-2′-deoxy-2-[(2-methyl-1-oxopropyl)amino]-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′)-N-benzoyl-2′-deoxy-2-[(2-methyl-1-oxopropyl)amino]-

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-N-(2-methyl-1-oxopropyl)-6-O-[2-(4-nitrophenyl)ethyl]-

Guanosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxycytidylyl-(3′→5′)-6-O-(2-cyanoethyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)-

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-uridylic acid

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

Adenosine, N-benzoyl-2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-2-[(2-methyl-1-oxopropyl)amino]-, 3′-(4-oxopentanoate)

Adenosine, N-benzoyl-2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-2-[(2-methyl-1-oxopropyl)amino]-

Adenosine, N-benzoyl-2′-deoxy-2-[(2-methyl-1-oxopropyl)amino]-, 3′,5′-bis(2-methylpropanoate)

Adenosine, 2′-deoxy-2-[(2-methyl-1-oxopropyl)amino]-, 3′,5′-bis(2-methylpropanoate)

Guanosine, 2′-deoxy-N-(2-methyl-1-oxopropyl)-6-O-[2-(4-nitrophenyl)ethyl]-, 3′-(4-oxopentanoate)

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-6-O-[2-(4-nitrophenyl)ethyl]-

Guanosine, 6-O-(2-cyanoethyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-(4-oxopentanoate)