Using COC(=O)C(CC1CCCCCC1)c1ccc(S(C)(=O)=O)cc1 to produce CS(=O)(=O)c1ccc(C(CC2CCCCCC2)C(=O)O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.