Using CCC[C@H]1CC[C@H](c2ccc(-c3cnc(-c4ccc(Br)cc4)nc3)cc2)CC1, N#C[Cu] to produce CCC[C@H]1CC[C@H](c2ccc(-c3cnc(-c4ccc(C#N)cc4)nc3)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.