Using CCOC(=O)Cc1ccc(Nc2ccc(Br)cc2[N+](=O)[O-])cc1 to produce CCOC(=O)Cc1ccc(Nc2ccc(Br)cc2N)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.