InChI=1/C19H20N2O3/c1-19(2)12-24-16-10-9-14(11-15(16)21(3)18(19)23)20-17(22)13-7-5-4-6-8-13/h4-11H,12H2,1-3H3,(H,20,22)/f/h20H 8FA7E54D39FDC8DE