Using COC(=O)CCl, O=C1NS(=O)(=O)c2c1ccc1ccccc21 to produce COC(=O)CN1C(=O)c2ccc3ccccc3c2S1(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.