Using Cc1ccc(Oc2cc(Br)ccc2C(C)(C)C)cc1, C#C[Si](C)(C)C to produce Cc1ccc(Oc2cc(C#C[Si](C)(C)C)ccc2C(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.