Using CC(=O)[O-], COC(=O)CCN1CCN(c2ccc(-c3ccc(C(=N)N)cc3)cc2SC)C1=O to produce COC(=O)CCN1CCN(c2ccc(-c3ccc(C(=N)N)cc3)cc2S(C)=O)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.