2,3,5-tri-O-acetyl-α-D-ribofuranosyl chloride

9-[2-deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-1-C-(2,2-dimethyl-1-oxopropoxy)-2-iodo-β-D-arabinofuranosyl]-9H-purin-6-amine

5'-(anthraquinon-2-ylmethoxycarbonyl)-2',3'-O-isopropylideneadenosine

5-Amino-N'-methoxy-1-β-D-ribofuranosyl-1H-imidazole-4-carboxamidine

1-methoxy adenosine