InChI=1S/C28H38O8/c1-12-13(2)28(36-22(12)31)23(32)26(5,33)21-17(34-28)11-16-14-10-20-27(35-20)19(30)7-6-18(29)25(27,4)15(14)8-9-24(16,21)3/h6-7,12-17,19-21,23,30,32-33H,8-11H2,1-5H3