InChI=1/C22H20Br2N2O2/c1-14(2)22(15-6-4-3-5-7-15)26-25-20(27)13-28-19-11-8-16-12-17(23)9-10-18(16)21(19)24/h3-12,14H,13H2,1-2H3,(H,25,27)/b26-22+/f/h25H 6C0F0764CCDF1166