Cytidine, [P(R)]-P-thiothymidylyl-(3′→5′)-[P(S)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(S)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(S)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-2′-deoxy-

Cytidine, [P(S)]-P-thiothymidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(S)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-2′-deoxy-

Cytidine, [P(S)]-P-thiothymidylyl-(3′→5′)-[P(S)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-2′-deoxy-

Cytidine, [P(S)]-P-thiothymidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(S)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-2′-deoxy-

Cytidine, [P(R)]-P-thiothymidylyl-(3′→5′)-[P(S)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(S)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-2′-deoxy-

Cytidine, [P(R)]-P-thiothymidylyl-(3′→5′)-[P(S)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-2′-deoxy-

Cytidine, [P(R)]-P-thiothymidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(S)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-2′-deoxy-

Cytidine, [P(R)]-P-thiothymidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-[P(R)]-2′-deoxy-P-thiocytidylyl-(3′→5′)-2′-deoxy-

Adenosine, 5′-O-[3-[[[[4-[2-(aminooxy)ethoxy]-2-quinolinyl]amino]carbonyl]amino]propyl]-2′-O-methylcytidylyl-(3′→5′)-2′-O-methyluridylyl-(3′→5′)-2′-O-methyluridylyl-(3′→5′)-2′-O-methylcytidylyl-(3′→5′)-2′-O-methyl-

Adenosine, 5′-O-[3-[[[[4-[2-[(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)oxy]ethoxy]-2-quinolinyl]amino]carbonyl]amino]propyl]-2′-O-methylcytidylyl-(3′→5′)-2′-O-methyluridylyl-(3′→5′)-2′-O-methyluridylyl-(3′→5′)-2′-O-methylcytidylyl-(3′→5′)-2′-O-methyl-

Cytidine, [P(S)]-P-deoxy-P-methyl-2′-O-methyl-P-thiouridylyl-(3′→5′)-2′-O-methyl-N-(2-methyl-1-oxopropyl)-

Cytidine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-deoxy-P-methyl-2′-O-methyl-P-thiouridylyl-(3′→5′)-2′-O-methyl-N-(2-methyl-1-oxopropyl)-

Cytidine, 3′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-O-methyl-N-(2-methyl-1-oxopropyl)-

Cytidine, [P(R)]-P-deoxy-P-methyl-2′-O-methyl-P-thiouridylyl-(3′→5′)-2′-O-methyl-N-(2-methyl-1-oxopropyl)-

Cytidine, [P(R)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-deoxy-P-methyl-2′-O-methyl-P-thiouridylyl-(3′→5′)-2′-O-methyl-N-(2-methyl-1-oxopropyl)-

Uridine, 5-[(1E)-2-bromoethenyl]-2′-deoxy-5′-O-(2-oxido-8-phenyl-4H-1,3,2-benzodioxaphosphorin-2-yl)-

Adenosine, 2′-deoxy-5′-O-(8-methyl-2-oxido-4H-1,3,2-benzodioxaphosphorin-2-yl)-

Guanosine, 2′-deoxy-5′-O-(8-methyl-2-oxido-4H-1,3,2-benzodioxaphosphorin-2-yl)-

Thymidine, 5′-O-(8-methyl-2-oxido-4H-1,3,2-benzodioxaphosphorin-2-yl)-, 3′-(4-oxopentanoate)

Thymidine, 3′-deoxy-5′-O-(8-methyl-2-oxido-4H-1,3,2-benzodioxaphosphorin-2-yl)-