6-Chloro-N-cyclopentyl-1-β-D-ribofuranosyl-1H-pyrazolo[3,4-b]pyridin-4-amine

4,6-Dichloro-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-pyrazolo[3,4-b]pyridine

5-Chloro-N-cyclopentyl-3-(2-deoxy-2-fluoro-β-D-arabinofuranosyl)-3H-imidazo[4,5-b]pyridin-7-amine

5,7-Dichloro-3-(3,5-di-O-benzoyl-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-3H-imidazo[4,5-b]pyridine

6-Chloro-N-cyclopentyl-1-(2-deoxy-2-fluoro-β-D-arabinofuranosyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

6-Chloro-N-cyclopentyl-2-(2-deoxy-2-fluoro-β-D-arabinofuranosyl)-2H-pyrazolo[3,4-d]pyrimidin-4-amine

6-Chloro-N-cyclopentyl-1-β-D-ribofuranosyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine

2-Chloro-N-cyclopentyl-9-[2-deoxy-2-fluoro-5-O-[(S)-[(hydroxymethoxyphosphinyl)methyl]methoxyphosphinyl]-β-D-arabinofuranosyl]-N-methyl-9H-purin-6-amine

2-Chloro-N-cyclopentyl-9-[2-deoxy-5-O-[[(dimethoxyphosphinyl)methyl]methoxyphosphinyl]-2-fluoro-β-D-arabinofuranosyl]-N-methyl-9H-purin-6-amine

6-(Cyclopentylamino)-9-(2-deoxy-2-fluoro-β-D-arabinofuranosyl)-α-(tetrahydro-2H-pyran-4-yl)-9H-purine-2-methanol

Adenosine, 2-chloro-N-cyclopentyl-, 5′-[methyl P-[(dimethoxyphosphinyl)methyl]phosphonate]

2-Chloro-9-[(5ξ)-6-deoxy-2,3-O-(1-methylethylidene)-β-D-ribo-hexofuranosyl]-N-(phenylmethyl)-9H-purin-6-amine

2-Chloro-5′-deoxy-2′,3′-O-(1-methylethylidene)-5′-oxo-N-(phenylmethyl)adenosine

2-Chloro-2′,3′-O-(1-methylethylidene)-N-(phenylmethyl)adenosine

2-Chloro-7-(2-deoxy-2-fluoro-β-D-arabinofuranosyl)-N-(phenylmethyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

2,4-Dichloro-7-(3,5-di-O-benzoyl-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-7H-pyrrolo[2,3-d]pyrimidine

2-Chloro-9-(2-deoxy-2-fluoro-β-D-arabinofuranosyl)-6-(phenylmethoxy)-9H-purine

9-(2-Deoxy-2-fluoro-β-D-arabinofuranosyl)-2-ethynyl-N-(phenylmethyl)-9H-purin-6-amine

9-(3,5-Di-O-benzoyl-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-N-(phenylmethyl)-2-[2-(trimethylsilyl)ethynyl]-9H-purin-6-amine

9-(2-Deoxy-2-fluoro-β-D-arabinofuranosyl)-2-(2-phenylethyl)-N-(phenylmethyl)-9H-purin-6-amine