1-[2-Deoxy-2-fluoro-5-O-[(S)-[[(1S)-1-methyl-2-oxo-2-(2-propyn-1-yloxy)ethyl]amino]phenoxyphosphinyl]-β-L-arabinofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

N-[[P(S)]-2′-Deoxy-P-phenyl-5′-adenylyl]-L-alanine 2-propyn-1-yl ester

N-[[P(S)]-2′-Deoxy-P-phenyl-5′-cytidylyl]-L-alanine (1S)-1-methyl-2-(1-methylethyl)-2-oxoethyl ester

N-[[P(S)]-2′-Deoxy-2′,2′-difluoro-P-phenyl-5′-uridylyl]-L-alanine 2-propen-1-yl ester

N-[[P(S)]-2′-Deoxy-P-phenyl-5′-uridylyl]-L-alanine (1S)-1-methyl-2-(1-methylethoxy)-2-oxoethyl ester

N-[[P(R),2′R]-2′-Deoxy-2′-fluoro-2′-methyl-P-phenyl-5′-uridylyl]-L-alanine (1S)-1-methyl-2-(1-methoxyethoxy)-2-oxoethyl ester

Uridine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-fluoro-2′-methyl-, 3′-(1,1-dimethylethyl carbonate), (2′R)-

1-[2-Deoxy-3-O-[(1,1-dimethylethoxy)carbonyl]-5-O-[(1,1-dimethylethyl)dimethylsilyl]-2-fluoro-β-L-arabinofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2-Deoxy-3-O-[(1,1-dimethylethoxy)carbonyl]-2-fluoro-β-L-arabinofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

9-[2-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-O-[(phenylmethoxy)carbonyl]-β-L-erythro-pentofuranosyl]-9H-purin-6-amine

Adenosine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-(phenylmethyl carbonate)

Uridine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-(phenylmethyl carbonate)

Uridine, 2′-deoxy-2′-fluoro-2′-methyl-, 3′-(1,1-dimethylethyl carbonate), (2′R)-

9-[2-Deoxy-5-O-[(S)-[[(1S)-2-(2-methoxyethoxy)-1-methyl-2-oxoethyl]amino]phenoxyphosphinyl]-3-O-[(phenylmethoxy)carbonyl]-β-L-erythro-pentofuranosyl]-9H-purin-6-amine

9-[2-Deoxy-5-O-[(S)-[[(1S)-1-methyl-2-[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethoxy]-2-oxoethyl]amino]phenoxyphosphinyl]-3-O-[(phenylmethoxy)carbonyl]-β-L-erythro-pentofuranosyl]-9H-purin-6-amine

N-[[P(S)]-2′-Deoxy-P-phenyl-3′-O-[(phenylmethoxy)carbonyl]-5′-adenylyl]-L-alanine 2-methoxyethyl ester

N-[[P(S)]-2′-Deoxy-2′,2′-difluoro-P-phenyl-3′-O-[(phenylmethoxy)carbonyl]-5′-cytidylyl]-L-alanine 2-propyn-1-yl ester