InChI=1S/C22H22BrNO2/c1-3-12-24(2)13-4-5-14-25-19-10-11-20-21(16-26-22(20)15-19)17-6-8-18(23)9-7-17/h3-11,15-16H,1,12-14H2,2H3/b5-4+