InChI=1S/C33H52O9/c1-16-7-12-33(39-15-16)17(2)24-23(42-33)14-22-20-6-5-18-13-19(8-10-31(18,3)21(20)9-11-32(22,24)4)40-30-27(36)25(34)26(35)28(41-30)29(37)38/h16-28,30,34-36H,5-15H2,1-4H3,(H,37,38)