InChI=1S/C19H16FN5O2/c1-11(18-15(5-6-17(26)24-18)25-8-2-7-22-25)27-16-10-12-9-13(20)3-4-14(12)23-19(16)21/h2-11H,1H3,(H2,21,23)(H,24,26)/t11-/m0/s1