InChI=1S/C30H40O2/c31-28-16-14-24(20-26(28)22-10-4-1-5-11-22)30(18-8-3-9-19-30)25-15-17-29(32)27(21-25)23-12-6-2-7-13-23/h14-17,20-23,31-32H,1-13,18-19H2