Using C#CCO, CC(C)(C)[Si](OCc1cc(Br)cc(Br)c1)(c1ccccc1)c1ccccc1 to produce CC(C)(C)[Si](OCc1cc(C#CCO)cc(C#CCO)c1)(c1ccccc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.