Using BrC(Br)(Br)Br, CC(C)N(CCCCO)c1cnc(-c2ccccc2)c(-c2ccccc2)n1 to produce CC(C)N(CCCCBr)c1cnc(-c2ccccc2)c(-c2ccccc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.