Using CC(=O)OC(C)=O, O=C1C=C(O)CC(c2ccc(F)cc2Br)C1 to produce CC(O)=C1C(=O)CC(c2ccc(F)cc2Br)CC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.