InChI=1/C20H15N3O5/c24-16-10-8-14(9-11-16)21-20(26)17-6-1-2-7-18(17)22-19(25)13-4-3-5-15(12-13)23(27)28/h1-12,24H,(H,21,26)(H,22,25)/f/h21-22H 3C53BC5D08C5AC2A