Using CCC/C(=C\S(=O)(=O)c1ccc(C(=O)c2ccncc2)cc1)C(=O)O to produce CCCC(CS(=O)(=O)c1ccc(C(=O)c2ccncc2)cc1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.