InChI=1S/C20H19F3N4O/c1-26-5-7-27(8-6-26)18-12-24-17-11-14(20(21,22)23)10-16(19(17)25-18)13-3-2-4-15(28)9-13/h2-4,9-12,28H,5-8H2,1H3