Using COC(=O)c1sccc1NS(=O)(=O)c1ccc(C(C)(C)C)cc1OC to produce COc1cc(C(C)(C)C)ccc1S(=O)(=O)Nc1ccsc1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.