Using COc1ccc(SC)cc1C1=NC2=C3C=NC(C)(C)C(=O)C3CC(=O)C2=N1, O=C([O-])[O-] to produce COc1ccc(S(C)=O)cc1C1=NC2=C3C=NC(C)(C)C(=O)C3CC(=O)C2=N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.