InChI=1S/C25H28O8/c1-13(2)7-9-16-17(10-8-14(3)4)22(29)24(23(31-5)21(16)28)33-19-12-15(26)11-18(27)20(19)25(30)32-6/h7-8,11-12,26-27H,9-10H2,1-6H3