InChI=1/C20H17FN2O4/c1-26-13-7-14-17(22-8-13)18(24)16-15(19(14)27-2)10-23(20(16)25)9-11-3-5-12(21)6-4-11/h3-8,24H,9-10H2,1-2H3/p-1/fC20H16FN2O4/h24h/q-1 E25FE5D2760D0E3E