InChI=1/C15H13BrN2O3/c1-9-3-6-14(13(16)7-9)17-15(19)12-5-4-11(18(20)21)8-10(12)2/h3-8H,1-2H3,(H,17,19)/f/h17H 82508D6BD1B4B2F3