2-Amino-4-chloro-7-[2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile

2-Amino-4,7-dihydro-7-(2-O-methyl-β-D-ribofuranosyl)-4-oxo-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile

4-Chloro-5-methyl-7-β-D-ribofuranosyl-7H-pyrrolo[2,3-d]pyrimidin-2-amine

4-Chloro-7-[5-O-[(1,1-dimethylethyl)dimethylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-5-methyl-7H-pyrrolo[2,3-d]pyrimidin-2-amine

4-Chloro-7-(2-O-methyl-β-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidin-2-amine

7-(2,3-Anhydro-β-D-ribofuranosyl)-4-methoxy-7H-pyrrolo[2,3-d]pyrimidin-2-amine

2-Amino-7-(3-deoxy-β-D-erythro-pentofuranosyl)-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

4-Chloro-5-ethyl-7-β-D-ribofuranosyl-7H-pyrrolo[2,3-d]pyrimidin-2-amine

4-Chloro-7-[5-O-[(1,1-dimethylethyl)dimethylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-5-ethyl-7H-pyrrolo[2,3-d]pyrimidin-2-amine

2-Amino-5-ethyl-3,7-dihydro-7-β-D-ribofuranosyl-4H-pyrrolo[2,3-d]pyrimidin-4-one

3′-Deoxy-3′-(fluoromethyl)guanosine

Cytidine, 2′-deoxy-1,2-dihydro-7-iodo-2-oxo-8-aza-7-deazaadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-1,2-dihydro-7-iodo-2-oxo-8-aza-7-deazadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-1,2-dihydro-7-iodo-2-oxo-8-aza-7-deazaadenylyl-(3′→5′)-2′-deoxy-

Guanosine, 7-(4-amino-1-butynyl)-2′-deoxy-7-deazaguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Guanosine, 2-amino-7-bromo-2′-deoxy-8-aza-7-deazaadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Guanosine, 2-chloro-2′-deoxy-7-deazaadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

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

Guanosine, 2′-deoxy-2-methoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Guanosine, 2′-deoxy-7-deazaxanthylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

6H-Pyrazolo[3,4-d]pyrimidin-6-one, 4-amino-1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,5-dihydro-3-iodo-

Guanosine, 2′-deoxycytidylyl-(3′→5′)-2′-deoxyinosinylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-