Quercetin-3'-o-phosphate TEA (Quercetin 3'-phosphate TEA) is an adenosine A receptor antagonist that can be used to prevent and treat metabolic disorders.

PSB 0777 ammonium hydrate is a potent and selective adenosine A2A receptor full agonist, exhibiting K i values of 44.4 nM for rat A2A receptors and 360 nM for human A2A receptors. For rat and human A1 receptors, it shows significantly lower affinity with K i values of ≥10000 nM and 541 nM, respectively. The compound demonstrates poor brain penetration and is not orally absorbable. It is of interest in research related to inflammatory bowel disease (IBD) [1] [2] [3].

Alloxazine (Isoalloxazine) is an A2 receptor antagonist, which is approximately 10-fold more selective for the A2B receptor than for the A2A receptor.

LAS101057 is a novel orally available and potent and selective A2B receptor antagonist for the study of asthma.

MRS-1706 has Ki values of 1.39, 112, 157, and 230 nM for human A2B, A2A, A1, and A3 receptors respectively. MRS-1706 is an effective and selective adenosine A2B receptor inverse agonist.