InChI=1/C18H24N2O3/c1-12-5-6-13(2)16(7-12)23-11-17(22)20-19-14-8-15(21)10-18(3,4)9-14/h5-8,19H,9-11H2,1-4H3,(H,20,22)/f/h20H 22612D75A228F83E