InChI=1/C21H24N2O3/c1-22-21(25)20(24)10-6-3-7-15-26-23-16-17-11-13-19(14-12-17)18-8-4-2-5-9-18/h2,4-5,8-9,11-14,16H,3,6-7,10,15H2,1H3,(H,22,25)/b23-16-/f/h22H D38C26E44C231266