Adenosine receptor inhibitor 1 is a highly potent and selective antagonist of adenosine receptor (AR). It exhibits exceptional affinity for A1 AR, A2A AR, A2B AR, and A3 AR, with respective Ki values of >1000, 68.5, >1000, >1000 nM. This compound demonstrates notable antinociceptive, anti-inflammatory, and peripheral analgesic properties. Therefore, Adenosine receptor inhibitor 1 holds great promise for investigating cancer and neurodegenerative diseases [1].
PSB-1901 is a potent A2B Adenosine ReceptorAntagonist with Picomolar Potency (Ki 0.0835 nM, KB 0.0598 nM, human A2BAR) with >10 000-fold selectivity versus all other AR subtypes. PSB-1901 was similarly potent and selective at the mouse A2BAR, making it a promising tool for preclinical studies.