3-(2-Propyn-1-yl)-1-β-D-xylofuranosyl-2,4(1H,3H)-pyrimidinedione

1-β-D-Arabinofuranosyl-3-(2-propyn-1-yl)-2,4(1H,3H)-pyrimidinedione

3-(2-Propyn-1-yl)uridine

Adenosine, 5′-(2-hydrogen (1S,2S)-1,2-cyclohexanedicarboxylate), 5′-ester with 2-β-D-ribofuranosyl-4-thiazolecarboxamide

Adenosine, 5′-(2-hydrogen (1R,2R)-1,2-cyclohexanedicarboxylate), 5′-ester with 2-β-D-ribofuranosyl-4-thiazolecarboxamide

Adenosine, 5′-(4-hydrogen butanedioate), 5′-ester with 2-β-D-ribofuranosyl-4-thiazolecarboxamide

Guanosine, 2′-deoxy-N-(2-methyl-1-oxopropyl)-5′-thio-, 5′-benzoate

Uridine, 3′-deoxy-3′-(hydroxymethyl)-, 5′-[phenylmethyl [P(S)]-phosphonate]

Uridine, 3′-deoxy-3′-(hydroxymethyl)-, 5′-[2-[(3-hydroxy-2,2-dimethyl-1-oxopropyl)thio]ethyl [P(S)]-phosphonate]

2′,3′-Dideoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-3′-(fluoromethyl)guanosine

Guanosine, 3′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-3′-(fluoromethyl)-, 2′-(O-phenyl carbonothioate)