InChI=1/C19H20Br2N2O3/c1-19(2,3)13-4-6-14(7-5-13)26-11-18(25)23-22-10-12-8-17(24)16(21)9-15(12)20/h4-10,24H,11H2,1-3H3,(H,23,25)/b22-10+/f/h23H F52CC38FEC6123CE