2-[(2R)-2-(2-Chloroethynyl)-2-deoxy-2-fluoro-5-O-[(S)-[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethoxy]phenoxyphosphinyl]-β-D-erythro-pentofuranosyl]-1,2,4-triazine-3,5(2H,4H)-dione

1-[(2R)-2-(2-Chloroethynyl)-2-deoxy-2-fluoro-5-O-[(S)-[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethoxy]phenoxyphosphinyl]-β-D-erythro-pentofuranosyl]-1,3,5-triazine-2,4(1H,3H)-dione

2-[(2R)-2-Deoxy-2-ethynyl-2-fluoro-5-O-[(S)-[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethoxy]phenoxyphosphinyl]-β-D-erythro-pentofuranosyl]-1,2,4-triazine-3,5(2H,4H)-dione

1-[(2R)-2-Deoxy-2-ethynyl-2-fluoro-5-O-[(S)-[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethoxy]phenoxyphosphinyl]-β-D-erythro-pentofuranosyl]-1,3,5-triazine-2,4(1H,3H)-dione

2-[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-triazine-3,5(2H,4H)-dione

1-[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-triazine-2,4(1H,3H)-dione

2-[5-O-[(S)-[(1S)-1-Methyl-2-(1-methylethoxy)-2-oxoethoxy]phenoxyphosphinyl]-2-C-1-propyn-1-yl-β-D-ribofuranosyl]-1,2,4-triazine-3,5(2H,4H)-dione

1-[5-O-[(S)-[(1S)-1-Methyl-2-(1-methylethoxy)-2-oxoethoxy]phenoxyphosphinyl]-2-C-1-propyn-1-yl-β-D-ribofuranosyl]-1,3,5-triazine-2,4(1H,3H)-dione

2-[2-C-(2-Chloroethynyl)-5-O-[(S)-[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethoxy]phenoxyphosphinyl]-β-D-ribofuranosyl]-1,2,4-triazine-3,5(2H,4H)-dione

2-[2-C-Ethynyl-5-O-[(S)-[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethoxy]phenoxyphosphinyl]-β-D-ribofuranosyl]-1,2,4-triazine-3,5(2H,4H)-dione

1-[2-C-Ethynyl-5-O-[(S)-[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethoxy]phenoxyphosphinyl]-β-D-ribofuranosyl]-1,3,5-triazine-2,4(1H,3H)-dione

2-Amino-7-[2-amino-2,6-dideoxy-2-C-(3-fluoro-1-propyn-1-yl)-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-allofuranosyl]-5-fluoro-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

2-Amino-7-[2-amino-2,6-dideoxy-2-C-(3-fluoro-1-propyn-1-yl)-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-allofuranosyl]-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

9-[2-Amino-2,6-dideoxy-2-C-(3-fluoro-1-propyn-1-yl)-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-allofuranosyl]-9H-purin-2-amine

2-Amino-7-[2-amino-2,6-dideoxy-2-C-(3-fluoro-1-propyn-1-yl)-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-α-L-talofuranosyl]-5-fluoro-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

2-Amino-7-[2-amino-2,6-dideoxy-2-C-(3-fluoro-1-propyn-1-yl)-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-α-L-talofuranosyl]-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one