Using Cc1cc(O)cc(NC(=O)c2cc(C)nn2C)c1, O=[N+]([O-])c1ccc(Br)cn1 to produce Cc1cc(NC(=O)c2cc(C)nn2C)cc(Oc2ccc([N+](=O)[O-])nc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.