InChI=1S/C10H12FN3O4/c11-6-4(3-15)8(16)9(17)7(6)14-2-1-5(12)13-10(14)18/h1-2,7-9,15-17H,3H2,(H2,12,13,18)/t7-,8-,9+/m1/s1