Using COc1cc([N+](=O)[O-])ccc1S(=O)(=O)N1C(=O)C(N)(c2ccccc2Cl)c2cc(Cl)ccc21 to produce COc1cc(N)ccc1S(=O)(=O)N1C(=O)C(N)(c2ccccc2Cl)c2cc(Cl)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.