InChI=1/C15H13N5O5/c16-13(21)9-4-6-11(7-5-9)17-15(23)19-18-14(22)10-2-1-3-12(8-10)20(24)25/h1-8H,(H2,16,21)(H,18,22)(H2,17,19,23)/f/h17-19H,16H2 18BA8DA9DF44BABC