Victoria C. Bailey, Jaswinder K. Sethi, Antony Galione and Barry V. L. Potter
7-Deaza-8-bromo cyclic adenosine 5′-diphosphate ribose is synthesised from 7-deazaadenosine via 7-deaza-8-bromo nicotinamide adenine dinucleotide; it is both a more potent antagonist than the 8-bromo derivative and has the advantage of chemical and enzymatic hydrolytic stability.