2-Amino-9-[(2R)-2-(2-chloroethynyl)-2,6-dideoxy-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribo-hexofuranosyl]-1,9-dihydro-6H-purine-6-thione

9-[(2R)-2-(2-Chloroethynyl)-2,6-dideoxy-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-α-L-lyxo-hexofuranosyl]-9H-purin-2-amine

2-Amino-9-[(2R)-2-(2-chloroethynyl)-2,6-dideoxy-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-α-L-lyxo-hexofuranosyl]-1,9-dihydro-6H-purine-6-thione

9-[(2R)-2-(2-Chloroethynyl)-2-deoxy-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-9H-purin-2-amine

2-Amino-7-[(2R)-2,6-dideoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribo-hexofuranosyl]-5-fluoro-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

2-Amino-7-[(2R)-2,6-dideoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribo-hexofuranosyl]-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

2-Amino-7-[(2R)-2,6-dideoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-α-L-lyxo-hexofuranosyl]-5-fluoro-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

2-Amino-7-[(2R)-2,6-dideoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-α-L-lyxo-hexofuranosyl]-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

2-Amino-7-[(2R)-2-deoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-5-fluoro-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

2-Amino-7-[(2R)-2-deoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

9-[(2R)-2,6-Dideoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribo-hexofuranosyl]-9H-purin-2-amine

2-Amino-9-[(2R)-2,6-dideoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribo-hexofuranosyl]-1,9-dihydro-6H-purine-6-thione

2-Amino-9-[(2R)-2,6-dideoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribo-hexofuranosyl]-1,9-dihydro-6H-purin-6-one

9-[(2R)-2,6-Dideoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-α-L-lyxo-hexofuranosyl]-9H-purin-2-amine

2-Amino-9-[(2R)-2,6-dideoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-α-L-lyxo-hexofuranosyl]-1,9-dihydro-6H-purine-6-thione

2-Amino-9-[(2R)-2,6-dideoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-α-L-lyxo-hexofuranosyl]-1,9-dihydro-6H-purin-6-one

9-[(2R)-2-Deoxy-2-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-9H-purin-2-amine

2-Amino-7-[6-deoxy-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