Using O=[N+]([O-])c1ccc(O)cc1, CCOC(=O)C(Br)c1ccccc1 to produce CCOC(=O)C(Oc1ccc([N+](=O)[O-])cc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.