Using CC1=NC2(N=C1N)c1cc(Br)ccc1CC21CCC1, C#CC(C)(C)C to produce CC1=NC2(N=C1N)c1cc(C#CC(C)(C)C)ccc1CC21CCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.