Using O=C(CCCl)c1ccccc1, O=C1NS(=O)(=O)Cc2ccccc21 to produce O=C(CCN1C(=O)c2ccccc2CS1(=O)=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.