InChI=1/C18H22N2O2/c1-2-22-18(21)20-11-9-19(10-12-20)14-15-7-8-16-5-3-4-6-17(16)13-15/h3-8,13H,2,9-12,14H2,1H3 5B2DBA9FE08C5508