InChI=1/C17H14N4O4/c22-15(18-10-5-6-11-12(7-10)20-17(24)19-11)8-21-13-3-1-2-4-14(13)25-9-16(21)23/h1-7H,8-9H2,(H,18,22)(H2,19,20,24)/f/h18-20H B5E2EDF17B3D5BE6