Adenosine receptor antagonist 1 is a highly selective antagonist for the A2aR adenosine receptor, exhibiting an IC50 value of 0.29 nM. It demonstrates a remarkable 14-fold selectivity towards the A2aR receptor in comparison to the A2bR receptor.
Sch412348 is a potent competitive the human adenosine A2A receptor antagonist with Ki of 0.6 nM and has >1000-fold selectivity over all other adenosine receptors.
KF21213 shows a high affinity for the adenosine A2A receptors (Ki=3.0 nM). KF21213 is a highly selective ligand for mapping CNS adenosine A2A receptors.
MRS 1523 can exert an antihyperalgesic effect through N-type Ca channel block and action potential inhibition in isolated rat dorsal root ganglion (DRG) neurons. MRS 1523 is an effective and selective adenosine A3 receptor antagonist Ki: 18.9 nM and 113 n