InChI=1S/C23H38O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-21-18-22(24)20-23(25)19-21/h5-6,18-20,24-25H,2-4,7-17H2,1H3/b6-5-