Using CC(=O)[O-], CC(=O)Nc1nc(-c2ccc(S(C)=O)cc2)cs1 to produce CC(=O)Nc1nc(-c2ccc(SCOC(C)=O)cc2)cs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.