Using CC1(C)C(=O)NC(=O)N1CCNc1nccc(-c2sccc2Br)n1, N#C[Cu] to produce CC1(C)C(=O)NC(=O)N1CCNc1nccc(-c2sccc2C#N)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.