2',3',5'-Tris-O-[(1,1-dimethylethyl)dimethylsilyl]-2-(4-methoxyphenyl)-6-O-methylinosine

2',3',5'-Tris-O-[(1,1-dimethylethyl)dimethylsilyl]-2-(3,5-dimethyl-1H-pyrazol-4-yl)-6-O-methylinosine

2',5'-Dideoxy-5'-iodoguanosine

2-(Acetylamino)-N-benzoyl-2'-deoxy-2'-fluoroadenosine

3'-[[(Azidomethoxy)carbonyl]amino]-2',3'-dideoxyadenosine

(2'R)-2'-Deoxy-2'-(3,3-difluoro-1,2-propadien-1-yl)-2'-fluoroadenosine

(2'R)-2'-Deoxy-2'-(3,3-difluoro-1,2-propadien-1-yl)-2'-fluoroguanosine

(2'R)-2'-Deoxy-2'-(3,3-difluoro-1,2-propadien-1-yl)-6-O-ethyl-2'-fluoroguanosine

2',3'-Dideoxy-6-O-ethyl-3'-fluoroguanosine

7-[3-[[2-[2-[1-Azido-2-[3-[[[2-[[5-[(3aS,4S,6aR)-hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]-1-oxopentyl]amino]ethyl]amino]carbonyl]phenoxy]ethoxy]ethoxy]acetyl]amino]-1-propyn-1-yl]-2',3'-dideoxyadenosine 5'-(tetrahydrogen triphosphate)

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-ethyl-4'-C-fluorothymidine

5'-Deoxy-5'-[[3-[[[[4-(1,1-dimethylethyl)phenyl]amino]carbonyl]amino]propyl](2-methylpropyl)amino]adenosine

5'-Deoxy-5'-[[2-[[[[[4-(1,1-dimethylethyl)phenyl]methyl]amino]carbonyl]oxy]ethyl]methylamino]adenosine

Adenosine, 2'-deoxy-2'-fluoro-3',5'-bis-O-(phenylmethyl)-

Adenosine, 3',5'-bis-O-(phenylmethyl)-

2',3'-Dideoxy-2'-iodoadenosine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-5-chlorouridine

4'-C-Azido-2'-deoxy-2',2'-difluoroguanosine 5'-(tetrahydrogen triphosphate)

4'-C-Azido-2'-deoxy-2',2'-difluorouridine 5'-(tetrahydrogen triphosphate)

4'-C-Azido-2'-deoxy-6-O-ethyl-2'-fluoroguanosine