Using COC(=O)C(C1CCCC(=O)C1)S(=O)(=O)c1ccccc1, NNc1ccc(Cl)cc1 to produce COC(=O)C(C1CCc2c([nH]c3ccc(Cl)cc23)C1)S(=O)(=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.