InChI=1/C17H11FN2O3/c18-13-4-6-14(7-5-13)20-17(21)12(9-19)8-11-2-1-3-15-16(11)23-10-22-15/h1-8H,10H2,(H,20,21)/b12-8+/f/h20H 8CFFE0C985E4D29C