Using Oc1ccc(S)cc1, COc1cc(OC(C)C)cc2oc(S(C)=O)cc(=O)c12 to produce COc1cc(OC(C)C)cc2oc(Sc3ccc(O)cc3)cc(=O)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.