6-Methyl-4-[3-(2-propyn-1-yloxy)-1-propyn-1-yl]-2-β-D-ribofuranosyl-1(2H)-isoquinolinethione

2-[5-O-[Hydroxy(phosphonooxy)phosphinyl]-β-D-ribofuranosyl]-6-methyl-4-[3-(2-propyn-1-yloxy)-1-propyn-1-yl]-1(2H)-isoquinolinethione

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-2′-methyl-5-[[2-[[2-[[1-oxo-2-[(triphenylmethyl)thio]propyl]amino]acetyl]oxy]ethoxy]methyl]-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-2′-methyl-5-[2-[[2-[[1-oxo-2-[(triphenylmethyl)thio]propyl]amino]acetyl]oxy]ethyl]-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-2′-methyl-5-[[[[2-[[1-oxo-2-[(triphenylmethyl)thio]propyl]amino]acetyl]oxy]methoxy]carbonyl]-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-2′-methyl-5-[1-[[2-[[1-oxo-2-[(triphenylmethyl)thio]propyl]amino]acetyl]oxy]ethyl]-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

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

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

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

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

Cytidine, 2′-deoxy-2′,2′-difluoro-, 5′,5′′′-[[1-(3-hydroxy-7,7-dimethyl-3-oxido-2,4-dioxa-7-azonia-3-phosphaoct-1-yl)-1,2-ethanediyl]bis[oxy(4-oxo-4,1-butanediyl)] dicarbonate]

Cytidine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-fluoro-, 3′-(hydrogen hexanoate)

2′-Deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-fluorocytidine

Cytidine, N,N′′-[[1-(3-hydroxy-7,7-dimethyl-3-oxido-2,4-dioxa-7-azonia-3-phosphaoct-1-yl)-1,2-ethanediyl]bis[oxy(1,6-dioxo-6,1-hexanediyl)]]bis[5′-deoxy-5-fluoro-, inner salt, 2′,2′′′,3′,3′′′-tetraacetate

N-(5-Carboxy-1-oxopentyl)-5′-deoxy-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5-fluorocytidine

N-(5-Carboxy-1-oxopentyl)-5′-deoxy-5-fluorocytidine

Cytidine, N-(5-carboxy-1-oxopentyl)-5′-deoxy-5-fluoro-, 2′,3′-diacetate