InChI=1/C14H9Br2N3O3/c15-8-3-6(12(20)11(16)13(8)21)5-17-7-1-2-9-10(4-7)19-14(22)18-9/h1-5,20-21H,(H2,18,19,22)/f/h18-19H 9981E82D9953C260