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