Using C#C[Si](C)(C)C, CCOC(=O)c1cc(NC(=O)OC(C)(C)C)c(Br)s1 to produce CCOC(=O)c1cc(NC(=O)OC(C)(C)C)c(C#C[Si](C)(C)C)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.