2-Chloro-9-[2-deoxy-5-O-[1,1-dicarboxy-2-(2,3,4-trifluorophenyl)ethyl]-2-fluoro-β-D-arabinofuranosyl]-9H-purin-6-amine

9-[5-O-[1-Carboxy-2-[2-(4-morpholinyl)ethoxy]-2-oxo-1-[[3-(trifluoromethoxy)phenyl]methyl]ethyl]-2-deoxy-2-fluoro-β-D-arabinofuranosyl]-2-chloro-9H-purin-6-amine

2-Chloro-9-[2-deoxy-2-fluoro-5-O-[1-[[2-(4-morpholinyl)ethoxy]carbonyl]-2-oxo-2-(phenylmethoxy)-1-[[3-(trifluoromethoxy)phenyl]methyl]ethyl]-β-D-arabinofuranosyl]-9H-purin-6-amine

1,3-Bis(1,1-dimethylethyl) 2-[2-chloro-9-[2-deoxy-3-O-[(1,1-dimethylethoxy)carbonyl]-2-fluoro-5-O-[1-[[2-(4-morpholinyl)ethoxy]carbonyl]-2-oxo-2-(phenylmethoxy)-1-[[3-(trifluoromethoxy)phenyl]methyl]ethyl]-β-D-arabinofuranosyl]-9H-purin-6-yl]imidodicarbonate

1,3-Bis(1,1-dimethylethyl) 2-[2-chloro-9-[2-deoxy-3-O-[(1,1-dimethylethoxy)carbonyl]-2-fluoro-5-O-[(1S)-1-[[2-(4-morpholinyl)ethoxy]carbonyl]-2-oxo-2-(phenylmethoxy)ethyl]-β-D-arabinofuranosyl]-9H-purin-6-yl]imidodicarbonate

2-Chloro-9-[2-deoxy-5-O-[1,1-dicarboxy-2-(3,4-dichlorophenyl)ethyl]-2-fluoro-β-D-arabinofuranosyl]-9H-purin-6-amine

2-Chloro-9-[2-deoxy-5-O-[1,1-dicarboxy-2-(2-fluorophenyl)ethyl]-2-fluoro-β-D-arabinofuranosyl]-9H-purin-6-amine

2-Chloro-9-[2-deoxy-5-O-[1,1-dicarboxy-2-(4-chloro-2,6-difluorophenyl)ethyl]-2-fluoro-β-D-arabinofuranosyl]-9H-purin-6-amine

2-Chloro-9-[5-O-[1,1-dicarboxy-2-[4-chloro-3-(trifluoromethoxy)phenyl]ethyl]-2-deoxy-2-fluoro-β-D-arabinofuranosyl]-9H-purin-6-amine

5′-O-[(1S)-1-Carboxy-2-phenyl-1-(2H-tetrazol-5-yl)ethyl]-2-methoxyadenosine

5′-O-[(1R)-1-Carboxy-2-phenyl-1-(2H-tetrazol-5-yl)ethyl]-2-methoxyadenosine

2-Chloro-5′-O-[(1S)-2-ethoxy-2-oxo-1-(phenylmethyl)-1-(2H-tetrazol-5-yl)ethyl]adenosine

2-Chloro-5′-O-[(1R)-2-ethoxy-2-oxo-1-(phenylmethyl)-1-(2H-tetrazol-5-yl)ethyl]adenosine

2-Chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1S)-2-ethoxy-2-oxo-1-(phenylmethyl)-1-(2H-tetrazol-5-yl)ethyl]-2′,3′-O-(1-methylethylidene)adenosine

2-Chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1R)-2-ethoxy-2-oxo-1-(phenylmethyl)-1-(2H-tetrazol-5-yl)ethyl]-2′,3′-O-(1-methylethylidene)adenosine

2-Chloro-5′-O-[(1S)-1-cyano-2-ethoxy-2-oxo-1-(phenylmethyl)ethyl]-N,N-bis[(1,1-dimethylethoxy)carbonyl]-2′,3′-O-(1-methylethylidene)adenosine

2-Chloro-5′-O-[(1R)-1-cyano-2-ethoxy-2-oxo-1-(phenylmethyl)ethyl]-N,N-bis[(1,1-dimethylethoxy)carbonyl]-2′,3′-O-(1-methylethylidene)adenosine

5′-O-[(S)-Carboxy-2H-tetrazol-5-ylmethyl]-2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-2′,3′-O-(1-methylethylidene)adenosine

5′-O-[(R)-Carboxy-2H-tetrazol-5-ylmethyl]-2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-2′,3′-O-(1-methylethylidene)adenosine

2-Chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1S)-2-ethoxy-2-oxo-1-(2H-tetrazol-5-yl)ethyl]-2′,3′-O-(1-methylethylidene)adenosine