InChI=1/C20H22N2O2/c23-19(20-22-13-14-24-20)9-3-1-2-6-12-21-18-11-10-16-7-4-5-8-17(16)15-18/h4-5,7-8,10-11,13-15,21H,1-3,6,9,12H2 B5520C3074CBCF66