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

L-Alanine, N-(hydroxyphenoxyphosphinyl)-, 1-methylethyl ester, ester with 9-[(2R)-2-deoxy-2-fluoro-4-C-fluoro-2-methyl-3-O-[(phenylmethoxy)carbonyl]-β-D-erythro-pentofuranosyl]-6-(1-pyrrolidinyl)-9H-purin-2-amine

9-[(2R)-2-Deoxy-2-fluoro-4-C-fluoro-2-methyl-3-O-[(phenylmethoxy)carbonyl]-β-D-erythro-pentofuranosyl]-6-(1-pyrrolidinyl)-9H-purin-2-amine

9-[(2R)-2-Deoxy-2-fluoro-4-C-fluoro-2-methyl-β-D-erythro-pentofuranosyl]-6-(1-pyrrolidinyl)-9H-purin-2-amine

N-[9-[(2R)-5-O-Benzoyl-2-deoxy-2-fluoro-4-C-fluoro-2-methyl-β-D-erythro-pentofuranosyl]-6-(1-pyrrolidinyl)-9H-purin-2-yl]-2-methylpropanamide

N-[9-[(2R)-2,5-Dideoxy-2-fluoro-4-C-fluoro-5-iodo-2-methyl-β-D-erythro-pentofuranosyl]-6-(1-pyrrolidinyl)-9H-purin-2-yl]-2-methylpropanamide

9-[(2R)-2,5-Dideoxy-2-fluoro-5-iodo-2-methyl-β-D-erythro-pentofuranosyl]-6-(1-pyrrolidinyl)-9H-purin-2-amine

9-[(2R)-2-Deoxy-2-fluoro-2-methyl-β-D-erythro-pentofuranosyl]-6-(1-pyrrolidinyl)-9H-purin-2-amine