Using Nc1ccc(O)cc1[N+](=O)[O-], Clc1cccc(Cl)c1CBr to produce Nc1ccc(OCc2c(Cl)cccc2Cl)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.