InChI=1/C17H16N4O4/c1-10-2-4-12(25-10)5-7-15(22)18-9-16(23)19-11-3-6-13-14(8-11)21-17(24)20-13/h2-8H,9H2,1H3,(H,18,22)(H,19,23)(H2,20,21,24)/b7-5+/f/h18-21H F140EF7280ED86C6