Using C#C[Si](C)(C)C, Cc1cc2c(cc1Br)C(C)(C)CCS2 to produce Cc1cc2c(cc1C#C[Si](C)(C)C)C(C)(C)CCS2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.