Using Cc1cc(CO[Si](C)(C)C(C)(C)C)c(C#N)c(=O)[nH]1 to produce Cc1cc(CO[Si](C)(C)C(C)(C)C)c(CN)c(=O)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.