Using COC(=O)C1(c2ccc(N)c(Br)c2)CC1, C#C[Si](C)(C)C to produce COC(=O)C1(c2ccc(N)c(C#C[Si](C)(C)C)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.