InChI=1S/C29H58O4/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-29(32)33-27-28(31)26-30/h28,30-31H,2-27H2,1H3/t28-/m1/s1