InChI=1S/C25H26O7/c1-24(2)7-4-8-25(3)18(24)11-14-13(5-6-15(27)22(14)32-25)23-21(30)20(29)19-16(28)9-12(26)10-17(19)31-23/h5-6,9-10,18,26-28,30H,4,7-8,11H2,1-3H3