InChI=1/C18H14FN3O4/c19-11-6-5-10-8-22(15(24)12(10)7-11)9-18(16(25)20-17(26)21-18)13-3-1-2-4-14(13)23/h1-7,23H,8-9H2,(H2,20,21,25,26)/t18-/m0/s1/f/h20-21H 674CA3F81D131EB7