InChI=1/C18H22N2O/c21-13-10-8-12(9-11-13)19-18-14-4-1-2-6-16(14)20-17-7-3-5-15(17)18/h1-2,4,6,12-13,21H,3,5,7-11H2,(H,19,20)/p+1/fC18H23N2O/h19-20H/q+1 DAA17C937BEAF693