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

3′-Adenylic acid, 2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 4-nitrophenyl phenyl ester

3′-Uridylic acid, 2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3-methyl-, diethyl ester

3′-Adenylic acid, 2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, diethyl ester

3′-Uridylic acid, 2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3-methyl-, bis(2-chlorophenyl) ester

3′-Thymidylic acid, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, bis(2-chlorophenyl) ester

Uridine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3-methyl-

8-Ethyl-3,7-dihydro-7-oxo-3-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)pyrido[2,1-i]purine-10-carbonitrile

Guanosine, 2′-deoxy-5′-O-[[(6-hydrazino-6-oxohexyl)oxy]hydroxyphosphinyl]cytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-

2′,3′-Secoguanosine, 2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′,3′-dideoxy-2′,3′-dioxo-

Guanosine, 2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyloxy(2-oxo-1,2-ethanediyl)-1-hydrazinyl-2-ylidenemethylidyne-1,4-phenylenecarbonylimino-1,3-propanediyloxyphosphinico-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-

Guanosine, 2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyloxy(2-oxo-1,2-ethanediyl)-1-hydrazinyl-2-ylidenemethylidyne-1,4-phenylenemethyleneoxyphosphinico-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-

Guanosine, 2′-deoxy-5′-O-[[3-[(4-formylbenzoyl)amino]propoxy]hydroxyphosphinyl]cytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-

Guanosine, 2′-deoxy-5′-O-[[(4-formylphenyl)methoxy]hydroxyphosphinyl]cytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-

3′-Guanylic acid, 2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-, 3′-(2-hydrazino-2-oxoethyl) ester

Thymidine, P-deoxythymidylyl-(5′→5′)-2′,3′-didehydro-3′-deoxy-

5′-Thymidylic acid, 2′,3′-didehydro-3′-deoxy-, 5′-ester with 3′-deoxythymidine

5′-Thymidylic acid, 3′-azido-2′,3′-didehydro-3′-deoxy-, 5′-ester with 3′-deoxythymidine

Thymidine, P,3′-dideoxythymidylyl-(5′→5′)-3′-azido-3′-deoxy-

Adenosine 5′-(trihydrogen diphosphate), 3′-C-methyl-, P′→5′-ester with 2-[2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-4-thiazolecarboxamide