4′-C-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-N-cyclopropyl-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-fluoro-N-methyl-2-[(2-methyl-1-oxopropyl)amino]adenosine

4′-C-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-N-cyclopropyl-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-fluoro-N-methyl-2-[(2-methyl-1-oxopropyl)amino]adenosine

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 2-chloro-9-(2-deoxy-2-fluoro-4-C-methyl-β-D-arabinofuranosyl)-N-methyl-9H-purin-6-amine

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 9-[4-C-(chloromethyl)-2-deoxy-2-fluoro-β-D-arabinofuranosyl]-2-fluoro-N-methyl-9H-purine-6-amine

9-[4-C-(Chloromethyl)-2-deoxy-2-fluoro-β-D-arabinofuranosyl]-2-fluoro-N-methyl-9H-purin-6-amine

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 9-(2-deoxy-2-fluoro-4-C-methyl-β-D-arabinofuranosyl)-2-fluoro-N-methyl-9H-purin-6-amine