Using CC(C)(C)C(=O)Nc1ccc(Br)nn1, CC(C)(C)OC(=O)C[Zn+] to produce CC(C)(C)OC(=O)Cc1ccc(NC(=O)C(C)(C)C)nn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.