InChI=1S/C25H19FN2O4/c26-20-11-18(24-19(12-20)14-31-15-32-24)13-28-21-8-4-7-17(22(21)23(27-30)25(28)29)10-9-16-5-2-1-3-6-16/h1-12,30H,13-15H2/b10-9+,27-23-