3'-Deoxy-3',3'-difluorouridine

5-[2-[[6-[[(2S)-2-Amino-5-[(aminoiminomethyl)amino]-1-oxopentyl]amino]hexyl]amino]-2-oxoethyl]-2'-deoxyuridine 5'-(tetrahydrogen triphosphate)

2-(Cyclopentyloxy)-5'-deoxy-5'-fluoroadenosine

2-(Cyclobutylmethoxy)-5'-deoxy-5'-fluoroadenosine

5-Bromo-6-iodouridine

5-[3-(4-Benzoylphenoxy)-1-propyn-1-yl]-2'-deoxyuridine

Glycine, 5'-ester with 5-(2-bromoethenyl)-2'-deoxyuridine, (E)-

Glycine, N-[(1,1-dimethylethoxy)carbonyl]-, 5'-ester with 5-(2-bromoethenyl)-2'-deoxyuridine, (E)-

Glycine, N-[(1,1-dimethylethoxy)carbonyl]-, 3'-ester with 5-[(1E)-2-bromoethenyl]-2'-deoxyuridine

L-Phenylalanine, N-[(1,1-dimethylethoxy)carbonyl]-, 3'-ester with 5-[(1E)-2-bromoethenyl]-2'-deoxyuridine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-5-[(2E)-2-bromoethenyl]-2'-deoxyuridine

5-[3-[[(2E)-3-[3-[[[(1-Butyl-2-piperidinyl)carbonyl]amino]methyl]phenyl]-1-oxo-2-propen-1-yl]amino]-1-propen-1-yl]-2'-deoxyuridine 5'-(tetrahydrogen triphosphate)

5-(2-Benzothiazolyl)-2'-deoxyuridine

2'-Deoxy-2'-methylguanosine

5-[2-[[6-[(Aminoiminomethyl)amino]hexyl]amino]-2-oxoethyl]-2'-deoxyuridine

2',3',5'-Tris-O-[(1,1-dimethylethyl)dimethylsilyl]-6-O-methylguanosine

8-Bromo-1-methylguanosine

β-Alanine, 5'-ester with 2',3'-dideoxyuridine

β-Alanine, N-[4-[1-[(4-fluorophenyl)methyl]-1H-pyrrol-2-yl]-2-hydroxy-1,4-dioxo-2-butenyl]-, 5'-ester with 2',3'-dideoxyuridine

Glycine, N-[4-[1-[(4-fluorophenyl)methyl]-1H-pyrrol-2-yl]-2-hydroxy-1,4-dioxo-2-butenyl]-, 5'-ester with 2',3'-dideoxyuridine