InChI=1/C17H15BrN2O3/c1-20-11-12(10-13(20)7-9-17(22)19-23)6-8-16(21)14-4-2-3-5-15(14)18/h2-11,23H,1H3,(H,19,22)/b8-6+,9-7+/f/h19H BF54FE9E4E434946