InChI=1/C18H13F3N2O3/c1-10-13-4-2-3-5-14(13)25-15(10)17(24)26-23-16(22)11-6-8-12(9-7-11)18(19,20)21/h2-9H,1H3,(H2,22,23)/f/h22H2/b23-16+ E5DFEDCCFAB56B21