InChI=1/C15H11N5O3/c21-15(11-6-2-4-8-13(11)20(22)23)19-18-14-10-5-1-3-7-12(10)16-9-17-14/h1-9H,(H,19,21)(H,16,17,18)/f/h18-19H D990DCB8D6D8245C