Using FC(F)(Br)C(F)(F)Br, CC(Cc1cn(C(=O)OC(C)(C)C)c2ccccc12)N1CCCCC1 to produce CC(Cc1c(Br)n(C(=O)OC(C)(C)C)c2ccccc12)N1CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.