Selective adenosine A2A receptor antagonist and monoamine oxidase B (MAO-B) inhibitor (Ki values are 54 and 28200 at rat A2A and A1 receptors respectively and Ki ~ 100 nM at MAO-B). Potently protects against quinolinic acid-induced (Cat. No. 0225) neuronal damage and is neuroprotective in the MPTP model of Parkinson's disease.