Using CCOc1ccc(C(=O)c2ccc(CBr)c(Br)c2)cc1, CC(=O)[O-] to produce CCOc1ccc(C(=O)c2ccc(COC(C)=O)c(Br)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.