3′-Guanylic acid, 5′-O-phosphonocytidylyl-(3′→5′)-cytidylyl-(3′→5′)-cytidylyl-(3′→5′)-cytidylyl-(3′→5′)-

3′-Adenylic acid, 5′-O-phosphonoadenylyl-(3′→5′)-adenylyl-(3′→5′)-

3′-Adenylic acid, 5′-O-phosphonoadenylyl-(3′→5′)-

3-(5-O-Phosphono-β-D-ribofuranosyl)-3H-imidazo[4,5-g]quinazolin-8-amine

6-(2,5-Di-O-phosphono-β-D-ribofuranosyl)imidazo[1,2-c]pyrimidin-5(6H)-one

3-(2,5-Di-O-phosphono-β-D-ribofuranosyl)-3H-imidazo[4,5-g]quinazolin-8-amine

2′-Cytidylic acid, 3′-O-methyl-, 5′-(dihydrogen phosphate)

3′-Cytidylic acid, 2′-O-methyl-, 5′-(dihydrogen phosphate)

3-(3,5-Di-O-phosphono-β-D-ribofuranosyl)-3H-imidazo[4,5-g]quinazolin-8-amine

3-(3,5-Di-O-phosphono-β-D-ribofuranosyl)-3H-imidazo[2,1-i]purine

3-(3,5-Di-O-phosphono-β-D-ribofuranosyl)-3,4-dihydro-9H-imidazo[1,2-a]purin-9-one

3-(3,5-Di-O-phosphono-β-D-ribofuranosyl)-7-methylpyrimido[1,2-a]purin-10(3H)-one

Cytidine, 5′-O-phosphonothymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Cytidine, 5′-O-phosphonothymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Thymidine, 2′-deoxy-5′-O-phosphonoadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-thymidylyl-(3′→5′)-

Thymidine, 2′-deoxy-5′-O-phosphonoadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-

Thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidine

Guanosine, 2′-deoxy-5′-O-phosphonocytidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-

Cytidine, thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Cytidine, 5′-O-phosphonothymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-