N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-3-[[[[2-(methoxycarbonyl)-2-azabicyclo[2.2.1]hept-3-yl]carbonyl]oxy]methyl]-2′-methyl-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-(Methoxycarbonyl)-2-phenylglycyl-(2′R)-2′-deoxy-2′-fluoro-5-(hydroxymethyl)-2′-methyl-P-phenyl-5′-uridylylalanine 1-methylethyl ester

O3-[N-(1-Methylethylidene)glycyl]-[P(S),2′R]-2′-deoxy-2′-fluoro-3-(hydroxymethyl)-2′-methyl-P-phenyl-3′-O-(triethylsilyl)-5′-uridylyl-L-alanine 1-methylethyl ester

O3-[(2R)-N-[(Cyclohexyloxy)carbonyl]-2-phenylglycyl]-[P(S),2′R]-2′-deoxy-2′-fluoroo-3-(hydroxymethyl)-2′-methyl-P-phenyl-3′-O-(triethylsilyl)-5′-uridylyl-L-alanine 1-methylethyl ester

O3-(N-Acetylglycyl)-[P(S),2′R]-2′-deoxy-2′-fluoro-3-(hydroxymethyl)-2′-methyl-P-phenyl-3′-O-(triethylsilyl)-5′-uridylyl-L-alanine 1-methylethyl ester

O3-[(2R)-2-Phenyl-N-[(5-thiazolylmethoxy)carbonyl]glycyl]-[P(S),2′R]-2′-deoxy-2′-fluoro-3-(hydroxymethyl)-2′-methyl-P-phenyl-3′-O-(triethylsilyl)-5′-uridylyl-L-alanine 1-methylethyl ester

O3-[N-[(Cyclopentyloxy)carbonyl]-L-valyl]-[P(S),2′R]-2′-deoxy-2′-fluoroo-3-(hydroxymethyl)-2′-methyl-P-phenyl-3′-O-(triethylsilyl)-5′-uridylyl-L-alanine 1-methylethyl ester

O3-[N-(Phenoxycarbonyl)glycyl]-[P(S),2′R]-2′-deoxy-2′-fluoroo-3-(hydroxymethyl)-2′-methyl-P-phenyl-3′-O-(triethylsilyl)-5′-uridylyl-L-alanine 1-methylethyl ester

O3-[N-(Phenoxycarbonyl)-L-valyl]-[P(S),2′R]-2′-deoxy-2′-fluoroo-3-(hydroxymethyl)-2′-methyl-P-phenyl-3′-O-(triethylsilyl)-5′-uridylyl-L-alanine 1-methylethyl ester

O3-[(2S)-2-Cyclohexyl-N-(methoxycarbonyl)glycyl]-[P(S),2′R]-2′-deoxy-2′-fluoroo-3-(hydroxymethyl)-2′-methyl-P-phenyl-3′-O-(triethylsilyl)-5′-uridylyl-L-alanine 1-methylethyl ester

O3-[N-(Ethoxycarbonyl)-L-valyl]-[P(S),2′R]-2′-deoxy-2′-fluoroo-3-(hydroxymethyl)-2′-methyl-P-phenyl-3′-O-(triethylsilyl)-5′-uridylyl-L-alanine 1-methylethyl ester

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

O3-[(2S)-N-(Methoxycarbonyl)-2-phenylglycyl]-[P(S),2′R]-2′-deoxy-2′-fluoroo-3-(hydroxymethyl)-2′-methyl-P-phenyl-3′-O-(triethylsilyl)-5′-uridylyl-L-alanine 1-methylethyl ester

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

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

O3-[N-(Methoxycarbonyl)-L-valyl]-[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-[[P(S),2′R]-2′-Deoxy-5-[[1,4-dioxo-4-[(1-oxobutoxy)methoxy]butoxy]methyl]-2′-fluoro-2′-methyl-P-phenyl-3′-O-(triethylsilyl)-5′-uridylyl]-L-alanine 1-methylethyl ester

O3-[N-(Methoxycarbonyl)-L-phenylalanyl]-[P(S),2′R]-2′-deoxy-2′-fluoroo-3-(hydroxymethyl)-2′-methyl-P-phenyl-3′-O-(triethylsilyl)-5′-uridylyl-L-alanine 1-methylethyl ester

O3-[N-[(1,1-Dimethylethoxy)carbonyl]glycyl]-[P(S),2′R]-2′-deoxy-2′-fluoro-3-(hydroxymethyl)-2′-methyl-P-phenyl-5′-uridylyl-L-alanine 1-methylethyl ester