4'-C-[1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]cyclopropyl]-3',5'-bis-O-(phenylmethyl)-5-methyluridine

(2'R)-2'-Chloro-2'-deoxy-2'-fluorouridine

(2'R)-2'-Chloro-2'-deoxy-3',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-2'-fluorouridine

2',2'-Dichloro-2'-deoxy-5-fluorouridine

2',2'-Dichloro-2'-deoxy-5-methyluridine

(2'S)-2'-Chloro-2'-deoxy-2'-fluoro-5-methyluridine

(2'R)-2'-Chloro-2'-deoxy-2'-fluoro-5-methyluridine

1-[2-Deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-1,3-dihydro-4-hydroxy-2H-benzimidazole-2-thione

N-Benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-3'-O-[(1,1-dimethylethyl)diphenylsilyl]-2'-O-[2-[2-(dimethylamino)ethoxy]ethyl]-5-methylcytidine

(2'S)-2'-Chloro-2'-deoxy-2'-fluoro-5-methyluridine 5'-(tetrahydrogen triphosphate)

5,6-Dichloro-1-(5-deoxy-β-D-ribofuranosyl)-1H-benzimidazole

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-3'-O-[(1,1-dimethylethyl)diphenylsilyl]-2'-O-[2-[2-(dimethylamino)ethoxy]ethyl]-5-methyluridine

3'-[[(2R)-2-(Aminomethyl)-1-oxo-3-phenylpropyl]amino]-3'-deoxy-N,N-dimethyladenosine

5-[(Methoxyamino)methyl]-2-thiouridine

5'-[(2-Aminoacetyl)amino]-5'-deoxyuridine

5',5'''-[(1,4-Dioxo-1,4-butanediyl)diimino]bis[5'-deoxyuridine]

5'-[(3-Carboxy-1-oxopropyl)amino]-5'-deoxyuridine

3'-Deoxy-3'-fluoro-4'-C-methoxyuridine

5-[2-[4-(3-Benzoyl-3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)phenyl]ethynyl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyuridine

5-[2-[3-(3-Benzoyl-3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)phenyl]ethynyl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyuridine