Using O=C1CCC(=O)N1Br, COc1ccc(CO)c(F)c1-c1cccc(Cl)c1 to produce COc1ccc(CBr)c(F)c1-c1cccc(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.