Using O=[N+]([O-])c1ccc(Cl)nc1, Cc1cc(Br)cc(Cl)c1O to produce Cc1cc(Br)cc(Cl)c1Oc1ccc([N+](=O)[O-])cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.