InChI=1/C21H24Br2N2O3/c1-5-27-16-8-6-15(7-9-16)11-24-25-19(26)12-28-21-17(13(2)3)10-18(22)14(4)20(21)23/h6-11,13H,5,12H2,1-4H3,(H,25,26)/b24-11+/f/h25H AD4142968188302B