5-(13-Azido-10,10-dimethyl-5-oxo-6,9,11-trioxa-4-azatridec-1-yn-1-yl)-2'-deoxyuridine 5'-(tetrahydrogen triphosphate)

5-[[[2-(1H-Indol-3-yl)ethyl]amino]carbonyl]-2'-O-methyluridine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2'-O-[(2S)-2-methoxypropyl]-5-methylcytidine

3'-O-[2-[2-(1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl)ethoxy]ethyl]-5-methylcytidine

N-Benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-[(2S)-2-methoxypropyl]-5-methylcytidine

5'-O-(6-Chloro-2-oxido-4H-1,3,2-benzodioxaphosphorin-2-yl)-2',3'-dideoxyuridine

N-Benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-3'-O-[2-oxo-2-(2,2,2-trifluoroethoxy)ethyl]-5-methylcytidine

3'-O-[2-[2-(1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl)ethoxy]ethyl]-5-methyluridine

N-Benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-[2-oxo-2-(2,2,2-trifluoroethoxy)ethyl]-5-methylcytidine

3'-O-[6-[[5-[[2-(Acetylamino)-3,4,6-tri-O-benzoyl-2-deoxy-β-D-galactopyranosyl]oxy]-1-oxopentyl]amino]hexyl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-5-methyluridine

2'-O-[6-[[5-[[2-(Acetylamino)-3,4,6-tri-O-benzoyl-2-deoxy-β-D-galactopyranosyl]oxy]-1-oxopentyl]amino]hexyl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-5-methyluridine

5'-[[2-[[5-(5-Amino-1-naphthalenyl)-1,3,4-oxadiazol-2-yl]amino]-2-oxoethyl]amino]-5'-deoxy-2-methyladenosine

5'-[[2-[[5-(4-Amino-1-naphthalenyl)-1,3,4-oxadiazol-2-yl]amino]-2-oxoethyl]amino]-8-bromo-5'-deoxy-2-methyladenosine

5'-[[2-[[5-(4-Amino-1-naphthalenyl)-1,3,4-oxadiazol-2-yl]amino]-2-oxoethyl]amino]-8-chloro-5'-deoxy-2-methyladenosine

5'-[[2-[[5-(5-Amino-1-naphthalenyl)-1,3,4-oxadiazol-2-yl]amino]-2-oxoethyl]amino]-5'-deoxy-8-fluoro-2-methyladenosine

2',3'-O-(Dibutylstannylidene)-5-methylcytidine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-5-[[[3-(dimethylamino)propyl]amino]carbonyl]-2'-fluorouridine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-2'-fluoro-5-iodouridine

3'-O-[6-(1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl)hexyl]-5-methyluridine

2'-O-[6-(1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl)hexyl]-5-methylcytidine