InChI=1S/C22H21O13/c1-32-13-2-7(19-11(25)6-9-10(24)4-8(23)5-12(9)33-19)3-14(15(13)26)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)