InChI=1/C19H18F4N2O3/c1-2-25(18(27)12-28-16-10-6-4-8-14(16)20)11-17(26)24-15-9-5-3-7-13(15)19(21,22)23/h3-10H,2,11-12H2,1H3,(H,24,26)/f/h24H 2410A27BC431D721