InChI=1S/C23H17FN2O4/c24-17-9-15(22-16(10-17)12-29-13-30-22)11-26-19-8-4-7-18(14-5-2-1-3-6-14)20(19)21(25-28)23(26)27/h1-10,28H,11-13H2/b25-21-