InChI=1/C15H13N3O4/c1-10(13-7-2-3-8-14(13)19)16-17-15(20)11-5-4-6-12(9-11)18(21)22/h2-9,19H,1H3,(H,17,20)/b16-10+/f/h17H F0A8F92D7758AC79