InChI=1S/C20H18F4N2O2S/c1-11-14(18(25)17-15(21)6-3-7-16(17)26-11)10-29-9-12-4-2-5-13(8-12)19(27,28)20(22,23)24/h2-8,27-28H,9-10H2,1H3,(H2,25,26)