InChI=1/C20H15BrN2O4/c21-15-4-1-13(2-5-15)17-8-6-16(27-17)12-22-23-20(24)14-3-7-18-19(11-14)26-10-9-25-18/h1-8,11-12H,9-10H2,(H,23,24)/b22-12+/f/h23H	6D6DE55ABD9B863F