InChI=1S/C22H20O13/c23-9-1-7(33-21-17(26)15(24)16(25)18(35-21)20(27)28)2-13-14(9)19-22(29,5-30-13)8-3-11-12(32-6-31-11)4-10(8)34-19/h1-4,15-19,21,23-26,29H,5-6H2,(H,27,28)