InChI=1/C19H22N2O3/c1-19(2,13-12-14-6-4-3-5-7-14)18(23)20-16-10-8-15(9-11-16)17(22)21-24/h3-11,24H,12-13H2,1-2H3,(H,20,23)(H,21,22)/f/h20-21H 8C06F3E6400DDF43