Using COC(=O)c1cccc(O)c1C(=O)OC, ClCc1ccc(Cl)s1 to produce COC(=O)c1cccc(OCc2ccc(Cl)s2)c1C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.