InChI=1/C17H26N2O2/c1-10(2)16(3)14(20)18-15(21-16)19-17-7-11-4-12(8-17)6-13(5-11)9-17/h10-13H,4-9H2,1-3H3,(H,18,19,20)/t11?,12?,13?,16-,17?/m0/s1/f/h19H 6D919AF151AC1E1D