Abstract
In a search for potent and selective adenosine agonists it has been
found that 2-hexynyladenosine-5'-N-ethyluronamide (HENECA) displays
high affinity at rat A2A receptor combined with a good A2A vs A1
selectivity. The finding that HENECA shows good affinity also for
A3 receptors prompted us to investigate the effect of various substituents
in different positions of this molecule.
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