InChI=1/C20H22N2O2/c21-11-17-5-1-2-6-18(17)14-24-19-7-3-4-15(10-19)12-22-13-20(23)16-8-9-16/h1-7,10,16,20,22-23H,8-9,12-14H2/p+1/t20-/m0/s1/fC20H23N2O2/h22H/q+1 E7B39640993ACE9C