a series of new purine nucleosides which have carbon substituents at their c-2 position were synthesized by non-aqueous diazotization/deamination of 2-amino-6-chloro-9- ( 2,3,5-tri-o-acetyl-beta-d-ribofuranosyl ) purine ( 1 ) with isoamyl nitrite in aromatic solvents and by palladium-catalyzed alkynylation of 2-iodo-adenosine ( 4 ) with terminal alkynes .
C0034136
purine nucleosides
C0001443
adenosine