Using O=S(=O)(Cl)c1ccc(Br)cc1, Cc1cc(N)cc(C)c1S(=O)(=O)C[N+](=O)[O-] to produce Cc1cc(NS(=O)(=O)c2ccc(Br)cc2)cc(C)c1S(=O)(=O)C[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.