Using CCOC(=O)c1ccc(Br)cc1C(=O)c1cc(F)cc(OC)c1 to produce COc1cc(F)cc(C(=O)c2cc(Br)ccc2C(=O)O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.