Using CCOC(=O)Cn1cc(Cc2cccc([N+](=O)[O-])c2)c2ccccc21 to produce O=C(O)Cn1cc(Cc2cccc([N+](=O)[O-])c2)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.