2'-CHLORO-2'-DEOXYURIDINE

5-HYDROXYMETHYL-2'-DEOXYURIDINE

2',3'-Dideoxyuridine

2',5'-DIDEOXYADENOSINE

2',3',5'-Triacetylguanosine

2',3',5'-Tri-O-acetyl-D-adenosine

N6-ISOPENTENYLADENOSINE-D6