InChI=1S/C22H15FN2O8/c23-14-7-2-1-6-12(14)21-24-20(25-33-21)10-4-3-5-11(8-10)22(31)32-19-13(9-26)15(27)16(28)17(29)18(19)30/h1-8,26-30H,9H2