Using COc1cc([N+](=O)[O-])c2nc(Cl)ccc2c1, OCc1ccc(Cl)cc1 to produce COc1cc([N+](=O)[O-])c2nc(OCc3ccc(Cl)cc3)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.