Using O=C(c1ccccc1)c1ccc(O)c(O)c1, CCOC(=O)C(Br)CBr to produce CCOC(=O)C1COc2ccc(C(=O)c3ccccc3)cc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.