InChI=1/C20H15F2NO5/c1-2-28-13-5-3-4-11(6-13)12-7-16(21)18(17(22)8-12)23-19(24)14-9-27-10-15(14)20(25)26/h3-10H,2H2,1H3,(H,23,24)(H,25,26)/p-1/fC20H14F2NO5/h23H/q-1 440E05B7B915A12A