Using CC(=O)CC(C)(C)C[N+](=O)[O-], C[Si](C)(C)OCCO[Si](C)(C)C to produce CC(C)(C[N+](=O)[O-])CC1(C)OCCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.