N-[9-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-4-C-ethenyl-2-fluoro-β-D-arabinofuranosyl]-6-(dimethylamino)-9H-purin-2-yl]-2-methylpropanamide

L-Alanine, N-(hydroxyphenoxyphosphinyl)-, 1-methylethyl ester, 5′-ester with 9-(2-deoxy-2-fluoro-4-C-methyl-β-D-arabinofuranosyl)-N6,N6-dimethyl-9H-purine-2,6-diamine

9-(2-Deoxy-2-fluoro-4-C-methyl-β-D-arabinofuranosyl)-N6,N6-dimethyl-9H-purine-2,6-diamine

N-[9-(2-Deoxy-2-fluoro-4-C-methyl-β-D-arabinofuranosyl)-6-(dimethylamino)-9H-purin-2-yl]-2-methylpropanamide

N-[9-[2-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-4-C-(iodomethyl)-β-D-arabinofuranosyl]-6-(dimethylamino)-9H-purin-2-yl]-2-methylpropanamide

N-[9-[2-Deoxy-2-fluoro-4-C-(iodomethyl)-β-D-arabinofuranosyl]-6-(dimethylamino)-9H-purin-2-yl]-2-methylpropanamide

N-[9-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-4-C-[[[(trifluoromethyl)sulfonyl]oxy]methyl]-β-D-arabinofuranosyl]-6-(dimethylamino)-9H-purin-2-yl]-2-methylpropanamide

N-[9-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-4-C-(iodomethyl)-β-D-arabinofuranosyl]-6-(dimethylamino)-9H-purin-2-yl]-2-methylpropanamide

N-[9-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-4-C-(hydroxymethyl)-β-D-arabinofuranosyl]-6-(dimethylamino)-9H-purin-2-yl]-2-methylpropanamide

N-[9-[2-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-4-C-(hydroxymethyl)-β-D-threo-pentofuranosyl]-6-(dimethylamino)-9H-purin-2-yl]-2-methylpropanamide

N-[9-[2-Deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-β-D-arabinofuranosyl]-6-(dimethylamino)-9H-purin-2-yl]-2-methylpropanamide

N-[9-[2-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-β-D-arabinofuranosyl]-6-(dimethylamino)-9H-purin-2-yl]-2-methylpropanamide

9-[2-Deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-β-D-arabinofuranosyl]-N6,N6-dimethyl-9H-purine-2,6-diamine