Using CC(C)(C)N1C(=O)C=C(c2ccc(CO)cc2)S1(=O)=O to produce CC(C)(C)N1C(=O)CC(c2ccc(CO)cc2)S1(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.