InChI=1/C21H25Br2N3O4/c1-29-16-5-3-14(4-6-16)7-9-25-21(27)19(26-28)13-15-11-17(22)20(18(23)12-15)30-10-2-8-24/h3-6,11-12,28H,2,7-10,13,24H2,1H3,(H,25,27)/p+1/b26-19-/fC21H26Br2N3O4/h24-25H/q+1 DB442C15D807640D