Using CCc1ccc(C(F)P(=O)([O-])[O-])c(CC)c1Br, COC(=O)c1ccc(C=O)cc1 to produce COC(=O)c1ccc(/C=C(\F)c2cccc(Br)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.