InChI=1S/C20H34N2O/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-18-16-20(23)19(21)17-22-18/h5-8,12-15,18-20,22-23H,2-4,9-11,16-17,21H2,1H3