2'-Deoxy-3'-S-phenyl-3'-thiouridine

3',5'-Di-O-acetyl-5-fluoro-O4-(2,4,6-trimethylphenyl)-2'-deoxyuridine

2,6-DiaMinopurine -9-beta-D-(2',3',5'-tri-O-benzoyl-2'-C-Methyl) riboside

5-Fluoro-1-[(2R,3S,5S)-3-fluoro-5-(hydroxymethyl)oxolan-2-yl]-1,2,3,4-tetrahydropyrimidine-2,4-dione

Tenofovir

6-Chloro-9-(2-deoxy-3-methylene-β-D-erythro-pentofuranosyl)-9H-purin-2-amine

6-Chloro-9-(3-deoxy-3-methylene-β-D-erythro-pentofuranosyl)-9H-purin-2-amine

2'-Deoxy-2'-methyleneGuanosine

Adenosine Impurity

2'-deoxy-2'-methylene-6-thioGuanosine

2-(Cyclopentylethynyl)-Adenosine

2-(3-Cyclopentyl-1-propyn-1-yl)-Adenosine

2-(3-Cyclohexyl-1-pyropyn-1-yl)-Adenosine

2-(2-Cyclohexyl-1-ethyn-1-yl)-Adenosine

2-(4-Cyclohexyl-1-butyn-1-yl)-Adenosine

2-(4-Cyclopentyl-1-butyn-1-yl)-Adenosine

2-(5-Cyclohexyl-1-pentyn-1-yl)-Adenosine

2-[(2-Phenylethyl)-1-ethyn-1-yl]-Adenosine

2-[2-(1-Hydroxycyclopentyl)-1-ethyn-1-yl]-Adenosine

2-[2-(1-Hydroxycycloheptyl)-1-ethyn-1-yl]-Adenosine