InChI=1S/C22H15NO6/c24-19-16-9-8-14(21(26)27)10-17(16)20(25)23(19)18(22(28)29)11-13-6-3-5-12-4-1-2-7-15(12)13/h1-10,18H,11H2,(H,26,27)(H,28,29)/t18-/m1/s1