(E)-8-(3-Chlorostyryl)caffeine

(E)-8-(3-Chlorostyryl)caffeine is a selective adenosine A2A receptor antagonist. (E)-8-(3-Chlorostyryl)caffeine inhibits monoamine oxidase B (MAO-B) with a Ki value of 70 nM by a pathway that is independent of its actions on the A2A receptor. (E)-8-(3-Chlorostyryl)caffeine has the potential for Parkinson's disorder research.