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

5-Iodo-3',5'-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]uridine

Adenosine, 2',3'-O-isopropylidene-, 5'-phosphate, benzyl 4-hydroxy-2,3-dimethyl-1-naphthyl ester

Adenosine, N,N-dimethyl-2-(methylthio)-5'-O-trityl-

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

Cytidine, 5'-azido-5-bromo-2',5'-dideoxy-

Cytidine, 5-bromo-2'-deoxy-, 5'-(4-methylbenzenesulfonate)

Cytidine, 5'-amino-5-bromo-2',5'-dideoxy-

1-[2,5-Dideoxy-5-[[2-(2,4-dichlorophenoxy)-1-oxopropyl]amino]-2-fluoro-β-D-arabinofuranosyl]-5-ethyl-2,4(1H,3H)-pyrimidinedione

Uridine, 5'-amino-2',5'-dideoxy-5-propyl-

Uridine, 2',5'-dideoxy-5-ethyl-5'-[[(4-hydroxy-2,6-dimethylphenyl)acetyl]amino]-, 3'-acetate

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

2'-Oxo-3',5'-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]thymidine

Thymidine, 2'-ethylidene-

1-(2-Deoxy-2-methyl-β-D-arabinofuranosyl)-4-ethoxy-5-methyl-2(1H)-pyrimidinone

Uridine, 4-O-ethyl-5-methyl-2'-C-methyl-3',5'-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Thymidine, 4-O-ethyl-2'-oxo-3',5'-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Uridine, 4-O-ethyl-5-methyl-

Guanosine, 5'-O-[(4-methoxyphenyl)diphenylmethyl]-N-(2-methyl-1-oxopropyl)-, 3'-acetate 2'-(hydrogen butanedioate)

Guanosine, 5'-O-[(4-methoxyphenyl)diphenylmethyl]-N-(2-methyl-1-oxopropyl)-, 2'-acetate 3'-(hydrogen butanedioate)