InChI=1/C21H17N3O4/c1-26-18-9-16-17(10-19(18)27-2)23-11-24-21(16)28-13-6-7-14-12(8-13)4-3-5-15(14)20(22)25/h3-11H,1-2H3,(H2,22,25)/f/h22H2 69E9E9903ABC4D8F