InChI=1/C18H24N2O2/c1-6-14-9-16(18(21)20-13(14)4)19-10-15-7-11(2)12(3)8-17(15)22-5/h7-9,19H,6,10H2,1-5H3,(H,20,21)/f/h20H 4FD0A19AA900E775