Using Oc1cccc2ccccc12, O=[N+]([O-])c1ccc(Cl)c(Cl)c1 to produce O=[N+]([O-])c1ccc(Oc2cccc3ccccc23)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.