Using COC(=O)C=Cc1ccc2c(c1)CCN2S(=O)(=O)c1ccccc1 to produce O=C(O)C=Cc1ccc2c(c1)CCN2S(=O)(=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.