InChI=1/C23H28N2O/c26-23(20-9-2-1-3-10-20)12-6-7-15-24-16-17-25-21(18-24)14-13-19-8-4-5-11-22(19)25/h1-5,8-11,21H,6-7,12-18H2/t21-/m1/s1 4FE4F76E8CF57086