Using C#C[Si](C)(C)C, CN(C)CC(=O)Nc1nn(C(=O)OC(C)(C)C)c2ccc(Br)cc12 to produce CN(C)CC(=O)Nc1nn(C(=O)OC(C)(C)C)c2ccc(C#C[Si](C)(C)C)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.