Using O=C(O)c1cc(O)c2ccccc2c1O, O=C(CBr)c1ccccc1 to produce O=C(COc1cc(C(=O)O)c(O)c2ccccc12)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.