Using Cc1ccc(-c2noc(C3CC(F)(F)C3)n2)cc1NC(=O)c1cnc2cc(Br)ccn12, C#C[Si](C)(C)C to produce Cc1ccc(-c2noc(C3CC(F)(F)C3)n2)cc1NC(=O)c1cnc2cc(C#C[Si](C)(C)C)ccn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.