Using COC(=O)Cc1csc2cc(O)cc(C)c12, ClCc1ccc(Cl)cc1Cl to produce COC(=O)Cc1csc2cc(OCc3ccc(Cl)cc3Cl)cc(C)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.