InChI=1/C15H13N3O4/c1-10-2-7-14(19)12(8-10)9-16-17-15(20)11-3-5-13(6-4-11)18(21)22/h2-9,19H,1H3,(H,17,20)/b16-9+/f/h17H 2307243C29906C2D