2(1H)-Pyrimidinone, 4-amino-1-[5-O-[[2,3-bis[(1-oxohexadecyl)oxy]propoxy][cyclohexyl[(cyclohexylamino)carbonyl]amino]phosphinyl]-β-D-arabinofuranosyl]-, (R)-

N-[1-[2,3-Bis-O-(1,4-dioxopentyl)-β-D-arabinofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]-4-oxopentanamide

N-[1-[5-O-[(1,1-Dimethylethyl)dimethylsilyl]-2,3-bis-O-(1,4-dioxopentyl)-β-D-arabinofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]-4-oxopentanamide

4-(Methylsulfonyl)-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-pyrazolo[3,4-d]pyrimidine

1-β-D-Ribofuranosyl-1H-pyrazolo[3,4-d]pyrimidine-4-carboxamide

1-(2,3,5-Tri-O-acetyl-β-D-ribofuranosyl)-1H-pyrazolo[3,4-d]pyrimidine-4-carbonitrile

7-β-D-Ribofuranosyl-7H-pyrrolo[2,3-d]pyrimidine-4-carboxamide

7-(2,3,5-Tri-O-acetyl-β-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidine-4-carbonitrile

4-(Methylsulfonyl)-7-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidine

4-(Methylthio)-7-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidine

Guanosine, N-[2-(acetylamino)-9H-fluoren-3-yl]-

[P(S)]-P-Thiothymidylyl-(3′→5′)-thymidine

[P(R)]-P-Thiothymidylyl-(3′→5′)-thymidine

Thymidine, 5′→P′′-ester with [P′′(R)]-thiotriphosphoric acid ((HO)2P(O)OP(O)(OH)OP(O)(OH)(SH))

Thymidine, 5′→P′-ester with thiodiphosphoric acid ((HO)2P(O)OP(S)(OH)2), (S)-

Thymidine, 5′→P′′-ester with [P′′(S)]-thiotriphosphoric acid ((HO)2P(O)OP(O)(OH)OP(O)(OH)(SH))

Uridine, 3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-3-[(2,2,2-trichloro-1,1-dimethylethoxy)carbonyl]-, 2′-(2-phenoxyacetate)

Adenosine, 3′-[[amino(2-fluorophenyl)acetyl]amino]-3′-deoxy-N,N-dimethyl-, (R)-

3′-Thymidylic acid, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(4-chlorophenyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-P-(4-chlorophenyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-, 4-chlorophenyl 2-cyanoethyl ester

Adenosine, 3′-[[amino(3-fluorophenyl)acetyl]amino]-3′-deoxy-N,N-dimethyl-