Adenosine, 2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 3′-benzoate

1-[5-O-Acetyl-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-1H-imidazol-5-amine

5′-O-Phosphonocytidylyl-(3′→5′)-cytidylyl-(3′→5′)-cytidine

9-(1,3,4-O-Methylidyne-β-D-psicofuranosyl)-9H-purin-6-amine

Adenine, 9-β-D-psicofuranosyl-, cyclic 3′,4′-(ethyl orthoformate)

9-(5-Deoxy-α-L-lyxofuranosyl)-9H-purin-6-amine

Adenine, 9-(5-deoxy-2,3-O-isopropylidene-α-L-lyxofuranosyl)-

Adenine, 9-β-D-psicofuranosyl-, cyclic 1′,3′,4′-orthoformate 6′-p-toluenesulfonate

1,1-Dimethylethyl 18-[6-amino-9-(5-chloro-5-deoxy-β-D-ribofuranosyl)-9H-purin-2-yl]-3,6,9,12,15-pentaoxaoctadec-17-ynoate

(2′S)-2′-Bromo-2′-deoxy-2′-fluoro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-6-O-(phenylmethyl)guanosine

1,3-Bis(1,1-dimethylethyl) 2-[9-[(2S)-2-bromo-2-deoxy-3,5-bis-O-[(1,1-dimethylethyl)diphenylsilyl]-2-fluoro-α-D-erythro-pentofuranosyl]-6-(phenylmethoxy)-9H-purin-2-yl]imidodicarbonate

(2′S)-2′-Bromo-2′-deoxy-2′-fluoro-N,N-bis[(1,1-dimethylethoxy)carbonyl]adenosine

1,3-Bis(1,1-dimethylethyl) 2-[9-[(2S)-2-bromo-2-deoxy-3,5-bis-O-[(1,1-dimethylethyl)diphenylsilyl]-2-fluoro-α-D-erythro-pentofuranosyl]-9H-purin-6-yl]imidodicarbonate

(2′S)-N-Benzoyl-2′-bromo-2′-deoxy-2′-fluorocytidine