2'-Deoxy-5-fluoro-3-methylcytidine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-5-[(1E)-3-[[2-[bis[2-[[1-oxo-5-[(2Z)-2-(4-quinolinylmethylene)-3(2H)-benzothiazolyl]pentyl]amino]ethyl]amino]ethyl]amino]-3-oxo-1-propen-1-yl]-2'-deoxyuridine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2'-O-[2-[2-(dimethylamino)ethoxy]ethyl]-2-O-ethyl-5-methyluridine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-S-methyl-2-thiouridine

2'-Deoxy-5-[3-[[2-[1-[(diphenylamino)carbonyl]-1H-imidazol-4-yl]acetyl]amino]propyl]-2'-fluorouridine

5-(3-Amino-1-propyn-1-yl)-2'-deoxy-2'-fluorouridine

5-(3-Aminopropyl)-2'-deoxy-2'-fluorouridine

2'-Deoxy-5-[3-[[2-[1-[(diphenylamino)carbonyl]-1H-imidazol-4-yl]acetyl]amino]-1-propyn-1-yl]-2'-fluorouridine

5'-O-[(1,1-Dimethylethyl)dimethylsilyl]-3'-O-[(1,1-dimethylethyl)diphenylsilyl]-2'-O-methyluridine

2'-Bromo-2',5'-dideoxy-5-fluorouridine

5'-Deoxy-5-fluorouridine 4-hydrazone

5'-Deoxy-5-fluorouridine 4-oxime

2',5'-Dideoxy-5-fluoro-4-thiouridine

2'-Bromo-2',5'-dideoxy-5-fluoro-4-thiouridine

5'-Deoxy-5-fluorouridine 4-[O-[(diethoxyphosphinyl)methyl]oxime]

2',5'-Dideoxy-5-fluorouridine 4-oxime

2'-Bromo-2',5'-dideoxy-5-fluorouridine 4-oxime

5'-Deoxy-5-fluorouridine 4-[O-[(4-methylphenyl)sulfonyl]oxime]

5'-Deoxy-5-fluorouridine 4-[O-(butylsulfonyl)oxime]

5'-Deoxy-5-fluorouridine 4-[O-(propylsulfonyl)oxime]