InChI=1/C13H12Br2N2O3/c14-11-5-10(20-13(11)15)6-17-8-2-1-3-9(4-8)19-7-12(16)18/h1-5,17H,6-7H2,(H2,16,18)/f/h16H2 E9EE7782A74B13A0