Using CC(=CC(=O)NC(C)(C)C)c1cc(Br)cc(C(=O)[O-])c1N, NC1=NCCN1 to produce Nc1ccc(Br)cc1C(=O)NC1=NCCN1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.