Using CC(C)(CCO[Si](C)(C)C(C)(C)C)CC(C[N+](=O)[O-])C1C(=O)Nc2cc(Cl)ccc21 to produce CC(C)(CCO[Si](C)(C)C(C)(C)C)CC(CN)C1C(=O)Nc2cc(Cl)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.