InChI=1S/C27H26O11/c1-27(2)9-8-15-17(38-27)7-4-12-10-16(25(33)36-22(12)15)14-6-5-13(34-3)11-18(14)35-26-21(30)19(28)20(29)23(37-26)24(31)32/h4-11,19-21,23,26,28-30H,1-3H3,(H,31,32)