InChI=1S/C23H22O11/c1-10(24)31-9-17-20(28)21(29)22(30)23(34-17)33-13-6-15(26)18-16(7-13)32-8-14(19(18)27)11-2-4-12(25)5-3-11/h2-8,17,20-23,25-26,28-30H,9H2,1H3