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

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

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

2-Chloro-5′-O-(1,1,2-tricarboxyethyl)adenosine

2-Chloro-5′-O-[3-ethoxy-1,1-bis(ethoxycarbonyl)-3-oxopropyl]adenosine

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[3-ethoxy-1,1-bis(ethoxycarbonyl)-3-oxopropyl]-, 2′,3′-bis(1,1-dimethylethyl carbonate)

2-Chloro-5′-O-[1,1-dicarboxy-2-(4-carboxyphenyl)ethyl]adenosine

2-Chloro-5′-O-[2-ethoxy-1-(ethoxycarbonyl)-1-[[4-(methoxycarbonyl)phenyl]methyl]-2-oxoethyl]adenosine

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[2-ethoxy-1-(ethoxycarbonyl)-1-[[4-(methoxycarbonyl)phenyl]methyl]-2-oxoethyl]-, 2′,3′-bis(1,1-dimethylethyl carbonate)

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxoethyl]-, 2′,3′-bis(1,1-dimethylethyl carbonate)

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-, 2′,3′-bis(1,1-dimethylethyl carbonate)

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 2′,3′-bis(1,1-dimethylethyl carbonate)

2-Chloro-5′-O-[(1,1-dimethylethyl)diphenylsilyl]adenosine

9-[5-O-[(1R)-1-([1,1′-Biphenyl]-4-ylmethyl)-1-carboxy-2-ethoxy-2-oxoethyl]-2-deoxy-2-fluoro-β-D-arabinofuranosyl]-2-chloro-9H-purin-6-amine

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

2-Chloro-9-[2-deoxy-5-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxo-1-[[4-(2H-tetrazol-5-yl)phenyl]methyl]ethyl]-2-fluoro-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]-5-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxo-1-[[4-(2H-tetrazol-5-yl)phenyl]methyl]ethyl]-2-fluoro-β-D-arabinofuranosyl]-9H-purin-6-yl]imidodicarbonate

3′-Azido-2-chloro-3′-deoxy-5′-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxoethyl]adenosine

3′-Amino-2-chloro-3′-deoxy-5′-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxo-1-(phenylmethyl)ethyl]adenosine

Adenosine, 2-chloro-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-O-[(4-methoxyphenyl)diphenylmethyl]-, 3-(1,1,1-trifluoromethanesulfonate)