InChI=1S/C17H26N2O2/c1-4-10-19-11-6-5-7-14(19)17(21)18-16-12(2)8-9-15(20)13(16)3/h8-9,14,20H,4-7,10-11H2,1-3H3,(H,18,21)/t14-/m0/s1