Using COC(=O)C(=O)c1ccc(O)cc1, ClCc1cc2ccccc2o1 to produce O=C(O)C(=O)c1ccc(OCc2cc3ccccc3o2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.