InChI=1/C21H21NO2/c23-21(24)18-12-7-11-17-16-10-5-2-6-13-19(16)22(20(17)18)14-15-8-3-1-4-9-15/h1,3-4,7-9,11-12H,2,5-6,10,13-14H2,(H,23,24)/p-1/fC21H20NO2/q-1 4DE3C6B0E713FDD4