InChI=1/C16H13Br2NO3/c1-10-2-4-14(13(18)6-10)19-16(21)9-22-15-5-3-12(17)7-11(15)8-20/h2-8H,9H2,1H3,(H,19,21)/f/h19H 2B1AB94140EB7DD9