Using CC(C)(C(=O)O)c1ccc([N+](=O)[O-])cc1, C[Si](C)(C)C=[N+]=[N-] to produce COC(=O)C(C)(C)c1ccc([N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.