InChI=1S/C22H21O13/c1-32-13-4-7(19-10(24)5-8-12(33-19)6-9(23)15(26)14(8)25)2-3-11(13)34-22-18(29)16(27)17(28)20(35-22)21(30)31/h2-6,16-18,20,22-29H,1H3,(H,30,31)