InChI=1/C16H26N2O3/c19-15(14-9-11-3-1-2-4-13(11)18-14)17-12-7-5-10(6-8-12)16(20)21/h10-14,18H,1-9H2,(H,17,19)(H,20,21)/t10?,11-,12?,13+,14-/m1/s1/f/h17-18H ACCFEF83C95C1AD0