InChI=1/C22H20N2O/c1-2-22-11-10-19(25)20(14-6-4-3-5-7-14)21(22)15-8-9-18-17(13-23-24-18)16(15)12-22/h3-9,13H,2,10-12H2,1H3,(H,23,24)/t22-/m0/s1/f/h23H A49DC43B51DF864C