Using CC(C)(C)[Si](C)(C)OCCCBr, N#Cc1ccc(-c2ccccc2)c(S)c1 to produce CC(C)(C)[Si](C)(C)OCCCSc1cc(C#N)ccc1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.