Using CCOC(=O)/C=C(\C)Oc1cccc(F)c1F, O=C1CCC(=O)N1Br to produce CCOC(=O)/C=C(\CBr)Oc1cccc(F)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.