InChI=1S/C20H17F3N2O5/c1-29-15-7-4-12(9-16-18(27)25-19(28)30-16)8-14(15)17(26)24-10-11-2-5-13(6-3-11)20(21,22)23/h2-8,16H,9-10H2,1H3,(H,24,26)(H,25,27,28)