Using CCOC(=O)C(C(=O)OCc1ccccc1)c1ccc([N+](=O)[O-])nc1 to produce CCOC(=O)Cc1ccc([N+](=O)[O-])nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.