InChI=1S/C22H20O14/c1-33-18-14(28)13(27)16-10(8(24)6-9(34-16)22(32)4-2-7(23)3-5-22)17(18)35-21-15(29)11(25)12(26)19(36-21)20(30)31/h2-6,11-12,15,19,21,25-29,32H,1H3,(H,30,31)