InChI=1/C22H20O13/c1-32-11-4-7(2-3-9(11)23)19-16(27)14(25)13-10(24)5-8(6-12(13)34-19)33-22-18(29)15(26)17(28)20(35-22)21(30)31/h2-6,15,17-18,20,22-24,26-29H,1H3,(H,30,31)