InChI=1S/C20H20F3N3O5/c21-20(22,23)14-2-1-3-15(12-14)25-8-6-24(7-9-25)5-4-17(27)13-10-16(26(30)31)19(29)18(28)11-13/h1-3,10-12,28-29H,4-9H2