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

2-Chloro-5'-O-(1,1-dicarboxy-2-phenylethyl)-3'-C-ethynyladenosine

9-[2,3-Dideoxy-5-O-(1,1-dicarboxy-2-phenylethyl)-2-fluoro-β-D-threo-pentofuranosyl]-2-methoxy-9H-purin-6-amine

9-[2-Deoxy-5-O-[1,1-dicarboxy-2-[4-(3-hydroxy-3-oxopropyl)phenyl]ethyl]-2-fluoro-β-D-arabinofuranosyl]-9H-purin-6-amine

9-[5-O-[(1S)-1-Carboxy-2-phenyl-1-(2H-tetrazol-5-yl)ethyl]-β-D-xylofuranosyl]-2-chloro-9H-purin-6-amine

9-[5-O-[(1R)-1-Carboxy-1-[2-(1,1-dimethylethyl)-2H-tetrazol-5-yl]-2-phenylethyl]-β-D-xylofuranosyl]-2-chloro-9H-purin-6-amine

1,3-Bis(1,1-dimethylethyl) 2-[2-chloro-9-[3-O-[(1,1-dimethylethoxy)carbonyl]-5-O-[(1S)-2-ethoxy-2-oxo-1-(phenylmethyl)-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-β-D-xylofuranosyl]-9H-purin-6-yl]imidodicarbonate

1,3-Bis(1,1-dimethylethyl) 2-[2-chloro-9-[3-O-[(1,1-dimethylethoxy)carbonyl]-5-O-[(1R)-2-ethoxy-2-oxo-1-(phenylmethyl)-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-β-D-xylofuranosyl]-9H-purin-6-yl]imidodicarbonate

1,3-Bis(1,1-dimethylethyl) 2-[2-chloro-9-[3-O-[(1,1-dimethylethoxy)carbonyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-5-O-[(1S)-2-ethoxy-2-oxo-1-(phenylmethyl)-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-β-D-xylofuranosyl]-9H-purin-6-yl]imidodicarbonate

1,3-Bis(1,1-dimethylethyl) 2-[2-chloro-9-[3-O-[(1,1-dimethylethoxy)carbonyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-5-O-[(1R)-2-ethoxy-2-oxo-1-(phenylmethyl)-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-β-D-xylofuranosyl]-9H-purin-6-yl]imidodicarbonate

1,3-Bis(1,1-dimethylethyl) 2-[2-chloro-9-[3-O-[(1,1-dimethylethoxy)carbonyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-5-O-[(1S)-2-ethoxy-2-oxo-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-β-D-xylofuranosyl]-9H-purin-6-yl]imidodicarbonate

1,3-Bis(1,1-dimethylethyl) 2-[2-chloro-9-[3-O-[(1,1-dimethylethoxy)carbonyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-5-O-[(1R)-2-ethoxy-2-oxo-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-β-D-xylofuranosyl]-9H-purin-6-yl]imidodicarbonate

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1R)-2-ethoxy-2-oxo-1-(phenylmethyl)-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-2′-C-methyl-, 2′,3′-bis(1,1-dimethylethyl carbonate)

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1S)-2-ethoxy-2-oxo-1-(phenylmethyl)-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-2′-C-methyl-, 2′,3′-bis(1,1-dimethylethyl carbonate)

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1S)-2-ethoxy-2-oxo-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-2′-C-methyl-, 2′,3′-bis(1,1-dimethylethyl carbonate)

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1R)-2-ethoxy-2-oxo-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-2′-C-methyl-, 2′,3′-bis(1,1-dimethylethyl carbonate)

2-Chloro-5′-O-[(1S)-2-ethoxy-1-[[2′-(methoxycarbonyl)[1,1′-biphenyl]-4-yl]methyl]-2-oxo-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]adenosine

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1S)-2-ethoxy-1-[[2′-(methoxycarbonyl)[1,1′-biphenyl]-4-yl]methyl]-2-oxo-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-, 2′,3′-bis(1,1-dimethylethyl carbonate)

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1R)-2-ethoxy-1-[[2′-(methoxycarbonyl)[1,1′-biphenyl]-4-yl]methyl]-2-oxo-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-, 2′,3′-bis(1,1-dimethylethyl carbonate)

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1S)-2-ethoxy-2-oxo-1-[2-[[2-(trimethylsilyl)ethoxy]methyl]-2H-tetrazol-5-yl]ethyl]-, 2′,3′-bis(1,1-dimethylethyl carbonate)