InChI=1S/C23H30N2O2/c1-2-9-23(27)25(20-12-7-4-8-13-20)21-14-16-24(17-15-21)18-22(26)19-10-5-3-6-11-19/h3-8,10-13,21-22,26H,2,9,14-18H2,1H3