InChI=1S/C21H22O13/c22-9(2-1-7-3-11(24)12(25)6-10(7)23)15-13(26)4-8(5-14(15)27)33-21-18(30)16(28)17(29)19(34-21)20(31)32/h3-6,16-19,21,23-30H,1-2H2,(H,31,32)