InChI=1S/C19H26N2O3/c1-6-24-11-21-16(10-15-8-13(4)7-14(5)9-15)17(12(2)3)18(22)20-19(21)23/h7-9,12H,6,10-11H2,1-5H3,(H,20,22,23)