InChI=1S/C25H38N2O/c1-4-7-10-13-20-28-24-17-16-23(21-14-11-12-15-22(21)24)25(26)27(18-8-5-2)19-9-6-3/h11-12,14-17,26H,4-10,13,18-20H2,1-3H3