N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-(1-hydroxyethyl)-2′-methyl-P-phenyl-3-O-(triethylsilyl)-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-[[[2-[[(2S)-2-[[(4-methoxyphenyl)diphenylmethyl]thio]-1-oxopropyl][(1,1-dimethylethoxy)carbonyl]amino]acetyl]oxy]methyl]-2′-methyl-P-phenyl-3′-O-(triethylslilyl)-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-[[[2-[[(2R)-2-[[(4-methoxyphenyl)diphenylmethyl]thio]-1-oxopropyl][(1,1-dimethylethoxy)carbonyl]amino]acetyl]oxy]methyl]-2′-methyl-P-phenyl-3′-O-(triethylslilyl)-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-[[[2-[[2-[[(4-methoxyphenyl)diphenylmethyl]thio]-1-oxopropyl][(1,1-dimethylethoxy)carbonyl]amino]acetyl]oxy]methyl]-2′-methyl-P-phenyl-3′-O-(triethylslilyl)-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-(hydroxymethyl)-2′-methyl-P-phenyl-3-O-(triethylsilyl)-5′-uridylyl]-L-alanine 1-methylethyl ester

N-(1-Oxopropyl)-L-cysteinyl-[P(S),2′R]-2′-deoxy-2′-fluoro-2′-methyl-P-phenyl-5′-uridylyl-L-alanine 1-methylethyl ester

Cytidine, N-(aminocarbonyl)-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

N-(2-Mercapto-1-oxopropyl)glycyl-[P(S),2′R]-2′-deoxy-2′-fluoro-3′-O-(1-hydroxypropyl)-2′-methyl-P-phenyl-5′-uridylyl-L-alanine 1-methylethyl ester

N-[(2R)-2-Mercapto-1-oxopropyl]glycyl-[P(S),2′R]-2′-deoxy-2′-fluoro-3′-O-(1-hydroxyethyl)-2′-methyl-P-phenyl-5′-uridylyl-L-alanine 1-methylethyl ester

N-[(2S)-2-Mercapto-1-oxopropyl]glycyl-[P(S),2′R]-2′-deoxy-2′-fluoro-3′-O-(1-hydroxyethyl)-2′-methyl-P-phenyl-5′-uridylyl-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-3-[[(Carboxymethyl)(2-mercapto-1-oxopropyl)amino]methyl]-2′-deoxy-2′-fluoro-2′-methyl-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-[1-[[2-[[(2R)-2-mercapto-1-oxopropyl]amino]acetyl]oxy]ethyl]-2′-methyl-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-[1-[[2-[[(2S)-2-mercapto-1-oxopropyl]amino]acetyl]oxy]ethyl]-2′-methyl-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-[6-[[2-[(2-mercapto-1-oxopropyl)amino]acetyl]oxy]hexyl]-2′-methyl-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-[5-[[2-[(2-mercapto-1-oxopropyl)amino]acetyl]oxy]pentyl]-2′-methyl-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-[4-[[2-[(2-mercapto-1-oxopropyl)amino]acetyl]oxy]butyl]-2′-methyl-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-[3-[[2-[(2-mercapto-1-oxopropyl)amino]acetyl]oxy]propyl]-2′-methyl-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Bromo-2′-deoxy-3-[2-[[2-[(2-mercapto-1-oxopropyl)amino]acetyl]oxy]acetyl]-2′-methyl-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Chloro-2′-deoxy-3-[2-[[2-[(2-mercapto-1-oxopropyl)amino]acetyl]oxy]acetyl]-2′-methyl-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-[2-[[2-[(2-mercapto-1-oxopropyl)amino]acetyl]oxy]acetyl]-2′-methyl-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester