InChI=1S/C22H15N3O4/c26-21(27)19-17(13-9-23-15-7-3-1-5-11(13)15)18(20(25-19)22(28)29)14-10-24-16-8-4-2-6-12(14)16/h1-10,23-25H,(H,26,27)(H,28,29)