Using C#C[Si](C)(C)C, Brc1cnc2c(OCc3ccccc3)cccn12 to produce C[Si](C)(C)C#Cc1cnc2c(OCc3ccccc3)cccn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.