InChI=1/C18H20N2O/c21-12-14(19-13-9-10-13)11-20-17-7-3-1-5-15(17)16-6-2-4-8-18(16)20/h1-8,13-14,19,21H,9-12H2/p+1/t14-/m0/s1/fC18H21N2O/h19H/q+1 82E247C0763F1B25