InChI=1/C18H14F2N2O2/c19-12-3-4-14(15(20)9-12)18(24)21-13-6-10-2-1-5-22-16(23)8-11(7-13)17(10)22/h3-4,6-7,9H,1-2,5,8H2,(H,21,24)/f/h21H F306B8355327344B