AR ligand-49

AR ligand-49 (Compound 4q) is a dual ligand for the adenosine A2A receptor (A2AAR) and A3 receptor (A3AR), with Ki values of 15 nM and 4.5 nM, respectively. It exhibits inverse agonist activity at hA2AAR and antagonist activity at hA3AR, making it useful for the study and development of adenosine receptor ligands.