5'-chloro-5'-deoxyadenosine-3'-d

3'-deuterioadenosine

3,5-di-O-benzoyl-1,2-O-isopropylidene-α-D-ribofuranose-3-d

1,2-di-O-acetyl-3,5-di-O-benzoyl-β-D-ribose-3-d