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