Using CC(C)(C)OC(=O)N1CC(N2CCCCC2)C[C@H]1C(=O)Nc1cc(Br)sc1C(N)=O to produce CC(C)(C)OC(=O)N1CC(N2CCCCC2)C[C@H]1c1nc2cc(Br)sc2c(=O)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.