Using COC(=O)[C@@H](N)C(C)C, O=[N+]([O-])c1ccc(-c2ccc(CBr)c(CBr)c2)cc1 to produce COC(=O)C(C(C)C)N1Cc2ccc(-c3ccc([N+](=O)[O-])cc3)cc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.