Using COC(=O)CCc1ccc(O)cc1, O=C(c1ccccc1)c1cccc(CBr)c1 to produce COC(=O)CCc1ccc(OCc2cccc(C(=O)c3ccccc3)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.