InChI=1/C15H18Br2N2O2/c1-2-19(7-8-20)12-5-3-11(4-6-12)18-10-13-9-14(16)15(17)21-13/h3-6,9,18,20H,2,7-8,10H2,1H3 19006F7274D7221B