4-Desmethyl Istradefylline is an impurity of Istradefylline (I927000), a selective A(2A) antagonist used in the treatment of Parkinson’s disease. 4-Desmethyl Istradefylline have also been shown to exhibit inhibitory potency towards adenosine A2A receptors and is classified as its an adenosine A2A receptor antagonist.
