InChI=1/C19H22N2O/c1-3-4-8-19-9-7-17(22)12(2)18(19)13-5-6-16-15(11-20-21-16)14(13)10-19/h5-6,11H,3-4,7-10H2,1-2H3,(H,20,21)/t19-/m0/s1/f/h21H ABE666C19887ADF3