InChI=1S/C24H36O4/c1-2-3-4-5-6-7-11-17-27-23(25)21-15-12-16-22(18-21)24(26)28-19-20-13-9-8-10-14-20/h12,15-16,18,20H,2-11,13-14,17,19H2,1H3