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

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

1-(2-Deoxy-α-D-erythro-pentofuranosyl)dihydro-6-hydroxy-5-methylene-2,4(1H,3H)-pyrimidinedione

Uridine, 2′-deoxy-5,6-dihydro-6-hydroxy-5-methylene-

Guanosine, 2′-O-methyl-, 5′-(P′,P′′,P′′-trihydrogen N-butyl-P-amidotriphosphate)

Guanosine, 2′-O-methyl-, 5′-[P′,P′′,P′′-trihydrogen [P(R)]-N-methyl-P-amidotriphosphate]

Guanosine, 2′-O-methyl-, 5′-[P′,P′′,P′′-trihydrogen [P(S)]-N-methyl-P-amidotriphosphate]

Uridine, 2′-deoxy-5-iodo-, 3′,5′-diisobutyrate

Thymidine, 2′-deoxy-5′-O-tritylcytidylyl-(3′→5′)-

Glycine, 2-phenyl-N-phosphono-, 1-methyl ester, 5′-ester with uridine 3,5-bis(dihydrogen phosphate)

Thymidine, 3′,5′-bis(chloroacetate)

Adenosine, thymidylyl-(3′→5′)-2′-deoxy-5-methyl-6-azaisocytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-

6-Azaisocytidine, thymidylyl-(3′→5′)-2′-deoxy-5-methyl-6-azaisocytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-5-methyl-

Thymidine, thymidylyl-(3′→5′)-2′-deoxy-5-methyl-6-azaisocytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-5-methyl-6-azaisocytidylyl-(3′→5′)-

N′-[2-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-2,5-dihydro-5-oxo-1,2,4-triazin-3-yl]-N,N-dimethylmethanimidamide

N′-[2-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-2,5-dihydro-6-methyl-5-oxo-1,2,4-triazin-3-yl]-N,N-dimethylmethanimidamide

N′-[2-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-2,5-dihydro-5-oxo-1,2,4-triazin-3-yl]-N,N-dimethylmethanimidamide

N′-[2-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-2,5-dihydro-6-methyl-5-oxo-1,2,4-triazin-3-yl]-N,N-dimethylmethanimidamide

N′-[2-(2-Deoxy-β-D-erythro-pentofuranosyl)-2,5-dihydro-5-oxo-1,2,4-triazin-3-yl]-N,N-dimethylmethanimidamide

N′-[2-(2-Deoxy-β-D-erythro-pentofuranosyl)-2,5-dihydro-6-methyl-5-oxo-1,2,4-triazin-3-yl]-N,N-dimethylmethanimidamide