InChI=1S/C28H34O8/c1-12(2)19(29)17-22(32)15(21(31)14-9-10-27(5,6)36-24(14)17)11-16-23(33)18(20(30)13(3)4)26(35)28(7,8)25(16)34/h9-10,12-13,31-32,34-35H,11H2,1-8H3