Using BrCc1ccccc1, CCOC(=O)C1CCc2cc(OC)c(O)cc2O1 to produce CCOC(=O)C1CCc2cc(OC)c(OCc3ccccc3)cc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.