L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 2-amino-5-fluoro-7-[2-C-(3-fluoro-1-propyn-1-yl)-β-D-ribofuranosyl]-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 2-amino-7-[2-C-(3-fluoro-1-propyn-1-yl)-β-D-ribofuranosyl]-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 9-[2-C-(3-fluoro-1-propyn-1-yl)-β-D-ribofuranosyl]-9H-purin-2-amine

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 2-amino-5-fluoro-3,7-dihydro-7-(2-C-1-propyn-1-yl-β-D-ribofuranosyl)-4H-pyrrolo[2,3-d]pyrimidin-4-one

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 2-amino-3,7-dihydro-7-(2-C-1-propyn-1-yl-β-D-ribofuranosyl)-4H-pyrrolo[2,3-d]pyrimidin-4-one

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 9-(2-C-1-propyn-1-yl-β-D-ribofuranosyl)-9H-purin-2-amine

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 2-amino-7-[2-C-(2-chloroethynyl)-β-D-ribofuranosyl]-5-fluoro-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 2-amino-7-[2-C-(2-chloroethynyl)-β-D-ribofuranosyl]-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 9-[2-C-(2-chloroethynyl)-β-D-ribofuranosyl]-9H-purin-2-amine

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 2-amino-7-(2-C-ethynyl-β-D-ribofuranosyl)-3,7-dihydro-5-fluoro-4H-pyrrolo[2,3-d]pyrimidin-4-one

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 2-amino-7-(2-C-ethynyl-β-D-ribofuranosyl)-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 9-(2-C-ethynyl-β-D-ribofuranosyl)-9H-purin-2-amine

5-Amino-2-[2-amino-2-deoxy-2-C-(3-fluoro-1-propyn-1-yl)-5-O-[(S)-[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethoxy]phenoxyphosphinyl]-β-D-ribofuranosyl]-1,2,4-triazin-3(2H)-one

4-Amino-1-[2-amino-2-deoxy-2-C-(3-fluoro-1-propyn-1-yl)-5-O-[(S)-[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethoxy]phenoxyphosphinyl]-β-D-ribofuranosyl]-1,3,5-triazin-2(1H)-one

5-Amino-2-[2-amino-2-deoxy-5-O-[(S)-[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethoxy]phenoxyphosphinyl]-2-C-1-propyn-1-yl-β-D-ribofuranosyl]-1,2,4-triazin-3(2H)-one