InChI=1/C19H20N2O/c1-4-16-9-7-11-18(12-16)20-19(22)14-21(3)13-17-10-6-5-8-15(17)2/h1,5-12H,13-14H2,2-3H3,(H,20,22)/p+1/fC19H21N2O/h20-21H/q+1 54817F9F1A748882