Uridine, 2',5'-dideoxy-5-ethyl-5'-[(2-pyridinylcarbonyl)amino]-

Uridine, 3-(phenylmethyl)-3',5'-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Uridine, 3-(2-methylbenzoyl)-3',5'-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

2-[2-Deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-4-methylpyrimido[1,6-a]benzimidazol-1(2H)-one

3'-Adenylic acid, 2'-deoxycytidylyl-(3'→5')-2'-deoxyguanylyl-(3'→5')-thymidylyl-(3'→5')-2'-deoxycytidylyl-(3'→5')-2'-deoxyguanylyl-(3'→5')-2'-deoxy-

3'-O-[3-[[(3S,5R)-3-(Benzoyloxy)-5-[3,4-dihydro-5-methyl-2,4-dioxo-3-[(phenylmethoxy)methyl]-1(2H)-pyrimidinyl]tetrahydro-2-furanyl]thio]propyl]-5'-O-[(1,1-dimethylethyl)diphenylsilyl]thymidine

Adenosine, 3'-deoxy-N,N-dimethyl-3'-phthalimido-, diacetate

2,4(1H,3H)-Pyrimidinedione, 1-[5-(3-azidopropyl)tetrahydro-4-hydroxy-2-furanyl]-5-ethyl-, [2R-(2α,4β,5α)]-

1-(5-Azido-2,5-dideoxy-2-fluoro-β-D-arabinofuranosyl)-5-ethyl-2,4(1H,3H)-pyrimidinedione

1-(5-Amino-2,5-dideoxy-2-fluoro-β-D-arabinofuranosyl)-5-ethyl-2,4(1H,3H)-pyrimidinedione

Uridine, 5'-azido-5-(2-chloroethyl)-2',5'-dideoxy-

Uridine, 2',5'-dideoxy-5-ethyl-5'-(methylamino)-

Uridine, 2',5'-dideoxy-5'-[[[2,6-dimethyl-4-(phenylmethoxy)phenyl]acetyl]amino]-, 3'-acetate

Uridine, 2',5'-dideoxy-5-ethyl-5'-[(9H-fluoren-9-ylcarbonyl)amino]-, 3'-hexadecanoate

Cytidine, 5'-[[(2-bromophenyl)acetyl]amino]-2',5'-dideoxy-5-ethyl-

Thymidine, 5'-deoxy-5'-[[(2,6-dichlorophenyl)acetyl]amino]-

Uridine, 2',5'-dideoxy-5'-[[(2,6-dichlorophenyl)acetyl]amino]-5-propyl-

Uridine, 2',5'-dideoxy-5-ethyl-5'-[(9H-fluoren-9-ylcarbonyl)amino]-, 3'-butanoate

Uridine, 5'-[([1,1'-biphenyl]-2-ylcarbonyl)amino]-2',5'-dideoxy-5-ethyl-

Uridine, 5'-[[[2-(acetylamino)phenyl]acetyl]amino]-2',5'-dideoxy-5-ethyl-, 3'-acetate

Uridine, 2',5'-dideoxy-5'-[[(2,6-dichlorophenyl)acetyl]amino]-5-ethyl-, 3'-(3,3-dimethylbutanoate)