InChI=1/C14H11Br2N3O2/c15-7-1-2-8(16)10(3-7)18-11-5-12-13(4-9(11)17)21-6-14(20)19-12/h1-5,18H,6,17H2,(H,19,20)/f/h19H F732819ECD851CC4