InChI=1S/C18H13FN2O3/c19-11-7-13-15-12(5-6-20-17(13)22)16(21-14(15)8-11)9-1-3-10(4-2-9)18(23)24/h1-4,7-8,21H,5-6H2,(H,20,22)(H,23,24)