InChI=1S/C17H26N2O2/c1-4-8-19-9-6-5-7-15(19)17(21)18-16-12(2)10-14(20)11-13(16)3/h10-11,15,20H,4-9H2,1-3H3,(H,18,21)/t15-/m0/s1