Using COC(=O)Cc1cccn1C, O=[N+]([O-])c1ccc(Cl)cc1 to produce COC(=O)C(c1ccc([N+](=O)[O-])cc1)c1cccn1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.