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