InChI=1S/C23H18F2N2O2/c1-28-17-8-3-14(4-9-17)21-22(15-5-10-18(29-2)11-6-15)27-23(26-21)19-12-7-16(24)13-20(19)25/h3-13H,1-2H3,(H,26,27)