Using COc1ccc(C(O)c2ccc(C#C[Si](C(C)C)(C(C)C)C(C)C)cc2)cc1Br to produce COc1ccc(Cc2ccc(C#C[Si](C(C)C)(C(C)C)C(C)C)cc2)cc1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.