Using CC1(C)CC(=O)Nc2cc(Br)ccc21, CC1(C)CC(=O)Nc2ccc(C#C[Si](C)(C)C)cc21 to produce CC1(C)CC(=O)Nc2cc(C#C[Si](C)(C)C)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.