InChI=1S/C29H48O4/c1-3-5-6-7-8-9-10-11-12-13-14-15-16-17-18-24-32-28(30)22-23-29(31)33-27-21-19-20-26(4-2)25-27/h19-21,25H,3-18,22-24H2,1-2H3