InChI=1/C21H24N2O/c22-17-20-10-12-23(13-11-20)14-15-24-21-8-6-19(7-9-21)16-18-4-2-1-3-5-18/h1-9,20H,10-16H2/p+1/fC21H25N2O/h23H/q+1 862A73C933A47E79