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

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

Guanosine, P(O)-(2-cyanoethyl)-P-thiothymidylyl-(3′→5′)-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-(4-oxopentanoate)

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P(O)-(2-cyanoethyl)-P-thiothymidylyl-(3′→5′)-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-(4-oxopentanoate)

Thymidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P,2′-dideoxyadenylyl-(3′→5′)-N-benzoyl-2′-deoxyadenylyl-(3′→5′)-, 3′-(4-oxopentanoate)

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-deoxythymidylyl-(3′→5′)-N-benzoyl-2′-deoxyadenylyl-(3′→5′)-N-benzoyl-2′-deoxy-, 3′-(4-oxopentanoate)

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P(O)-(2-cyanoethyl)-2′-deoxy-P-thioadenylyl-(3′→5′)-N-benzoyl-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P(O)-(2-cyanoethyl)-P-deoxo-2′-deoxyadenylyl-(3′→5′)-N-benzoyl-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Adenosine, N-benzoyl-P(O)-(2-cyanoethyl)-2′-deoxy-P-thioadenylyl-(3′→5′)-P(O)-(2-cyanoethyl)-P-thiothymidylyl-(3′→5′)-N-benzoyl-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Adenosine, P-thiothymidylyl-(3′→5′)-N-benzoyl-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P(O)-(2-cyanoethyl)-P-deoxo-2′-deoxyadenylyl-(3′→5′)-P(O)-(2-cyanoethyl)-P-deoxothymidylyl-(3′→5′)-N-benzoyl-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P(O)-(2-cyanoethyl)-P-deoxothymidylyl-(3′→5′)-P-(2-cyanoethyl)-P-deoxothymidylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Pregna-1,4-dien-21-oic acid, 11-hydroxy-17,20-[(1-methylethylidene)bis(oxy)]-3-oxo-, (11β,20R)-, 5′-ester with 3′-azido-3′-deoxythymidine

Pregna-1,4-diene-16-carboxylic acid, 11-hydroxy-21,21-dimethoxy-3,20-dioxo-, (11β,16α)-, 5′-ester with 3′-azido-3′-deoxythymidine

Pregn-4-ene-20-carboxylic acid, 3-(acetyloxy)-, (3β,20S)-, 5′-ester with 3′-azido-3′-deoxythymidine

Cytidine, 2′,3′-O-(1-phosphonoethylidene)-

1-[2-Deoxy-3,5-O-[(S)-phenylphosphonomethylene]-β-D-threo-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2-Deoxy-3,5-O-(phosphonomethylene)-β-D-threo-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

Uridine, 5-methyl-2′,3′-O-(phenylphosphonomethylene)-

Uridine, 2′,3′-O-(phenylphosphonomethylene)-