Uridine, 5'-azido-2',5'-dideoxy-5-ethyl-3'-O-ethyl-

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

Cytidine, N-benzoyl-2'-deoxy-5-ethyl-

Uridine, 5'-azido-2',5'-dideoxy-5-ethyl-3'-O-(phenylmethyl)-

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

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

Uridine, 5'-[[2-(2-bromophenyl)-1-oxopropyl]methylamino]-2',5'-dideoxy-5-ethyl-

Uridine, 2',5'-dideoxy-5'-[[(2,6-dichlorophenyl)acetyl]methylamino]-5-ethyl-

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

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

Uridine, 5'-[[2-(2-bromophenyl)-1-oxopropyl]amino]-2',5'-dideoxy-5-ethyl-