Using CCOC(=O)C(C(=O)OCC)(c1ccccc1)c1ccc([N+](=O)[O-])cn1 to produce O=[N+]([O-])c1ccc(Cc2ccccc2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.