L-Alanine, N-(hydroxymercaptophosphinyl)-, 1-methylethyl ester, 3′,5′-diester with 2-chloro-9-[(3R)-2,3-dideoxy-2-fluoro-3-(hydroxymethyl)-3-methyl-β-D-threo-pentofuranosyl]-N-(phenylmethyl)-9H-purin-6-amine

L-Alanine, N-(hydroxymercaptophosphinyl)-, 1-methylethyl ester, 5′-ester with 2-chloro-9-[(3R)-2,3-dideoxy-2-fluoro-3-(hydroxymethyl)-3-methyl-β-D-threo-pentofuranosyl]-9H-purin-6-amine

L-Alanine, N-(hydroxymercaptophosphinyl)-, 1-methylethyl ester, 3′,5′-diester with 2-chloro-9-[(3R)-2,3-dideoxy-2-fluoro-3-(hydroxymethyl)-3-methyl-β-D-threo-pentofuranosyl]-9H-purin-6-amine

L-Alanine, N-(hydroxymercaptophosphinyl)-, 1-methylethyl ester, 3′,5′-diester with 2-chloro-9-[(3R)-2,3-dideoxy-2-fluoro-3-(hydroxymethyl)-3-methyl-β-D-threo-pentofuranosyl]-6-methoxy-9H-purine

L-Alanine, N-(hydroxymercaptophosphinyl)-, 1-methylethyl ester, 3′-ester with 4-amino-1-[(3R)-2,3-dideoxy-2,2-difluoro-3-(hydroxymethyl)-3-methyl-α-D-glycero-pentofuranosyl]-2(1H)-pyrimidinone

L-Alanine, N-(hydroxymercaptophosphinyl)-, 1-methylethyl ester, 3′,5′-diester with 4-amino-1-[(3R)-2,3-dideoxy-2,2-difluoro-3-(hydroxymethyl)-3-methyl-α-D-glycero-pentofuranosyl]-2(1H)-pyrimidinone