Using O=C(O)c1ccc(O)cc1, O=[N+]([O-])c1ccc(Cl)cc1 to produce O=C(O)c1ccc(Oc2ccc([N+](=O)[O-])cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.