InChI=1/C15H13N3O4/c1-10-4-2-3-5-13(10)15(20)17-16-9-11-8-12(19)6-7-14(11)18(21)22/h2-9,19H,1H3,(H,17,20)/b16-9+/f/h17H 3457BD16F4BE9BF4