Using O=C(CCl)Nc1ccccc1, O=C1NS(=O)(=O)c2ccccc21 to produce O=C(CN1C(=O)c2ccccc2S1(=O)=O)Nc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.