Using COC(=O)C1SCCN1S(=O)(=O)c1ccc(-c2ccccc2)cc1 to produce O=C(O)C1SCCN1S(=O)(=O)c1ccc(-c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.