InChI=1S/C23H22O13/c1-7-20(34-8(2)24)18(31)19(32)23(33-7)36-22-17(30)15-11(26)5-10(25)6-14(15)35-21(22)9-3-12(27)16(29)13(28)4-9/h3-7,18-20,23,25-29,31-32H,1-2H3