3′-Guanylic acid, 2′-deoxy-N-[(1R)-2,3-dihydro-7-(hydroxymethyl)-1H-pyrrolizin-1-yl]-

1H-Isoindole-1,3(2H)-dione, 2,2′-[9-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-9H-purine-2,6-diyl]bis-

2-[2-Fluoro-9-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-9H-purin-6-yl]-1H-isoindole-1,3(2H)-dione

2-[6-Chloro-9-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-9H-purin-2-yl]-1H-isoindole-1,3(2H)-dione

2-[6-[2-(Methylthio)ethoxy]-9-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-9H-purin-2-yl]-1H-isoindole-1,3(2H)-dione

Guanosine, 6-O-[2-(methylsulfonyl)ethyl]-, 2′,3′,5′-triacetate

6-Chloro-9-(3,5-di-O-acetyl-2-deoxy-β-D-erythro-pentofuranosyl)-2-fluoro-9H-purine

Inosine, 2′-deoxy-2-fluoro-6-O-[2-(methylthio)ethyl]-, 3′,5′-diacetate

Guanosine, 2′-deoxy-6-O-[2-(methylthio)ethyl]-, 3′,5′-diacetate

Guanosine, 6-O-[2-(methylthio)ethyl]-, 2′,3′,5′-triacetate

Thymidine, [P(R)]-5′-O-acetyl-P-thiothymidylyl-(3′→5′)-

Thymidine, [P(R)]-P-thiothymidylyl-(3′→5′)-, 3′-acetate

Thymidine, [P(S)]-P(S)-(2-mercaptoethyl)-P-thiothymidylyl-(3′→5′)-

Thymidine, [P(R)]-P(S)-(2-mercaptoethyl)-P-thiothymidylyl-(3′→5′)-

[P(S)]-P(S)-[(Acetyloxy)methyl]-P-thiothymidylyl-(3′→5′)-thymidine

[P(R)]-P(S)-[(Acetyloxy)methyl]-P-thiothymidylyl-(3′→5′)-thymidine

[1,3,5]Triazino[1,2-a]purin-10(3H)-one, 7-butyl-3-(2-deoxy-β-D-erythro-pentofuranosyl)-5,6,7,8-tetrahydro-

[1,3,5]Triazino[1,2-a]purin-10(3H)-one, 3-(2-deoxy-β-D-erythro-pentofuranosyl)-5,6,7,8-tetrahydro-7-phenyl-

Cytidine, 2′-deoxy-N-(2-methyl-1-oxopropyl)-5′-O-phosphonoguanylyl-(3′→5′)-2′-deoxy-N-(4-methoxybenzoyl)-, 3′-acetate

Guanosine, 2′-deoxy-N-(4-methoxybenzoyl)-5′-O-phosphonocytidylyl-(3′→5′)-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-(2-methylpropanoate)