11-Cyclopropyl-5,11-dihydro-4-(hydroxymethyl)-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-one, is a metabolite of Nevirapine (N391275), which is a potent (IC50=84nM) and selective non-nucleoside inhibitor of HIV-1 reverse transcriptase. It is also an antiviral.