Using BrCc1ccccc1, COC(=O)c1ccc(OCc2ccc(Cl)cc2)cc1O to produce COC(=O)c1ccc(OCc2ccc(Cl)cc2)cc1OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.