Using CCOC(=O)CCc1ccc(C(=O)c2ccc([N+](=O)[O-])cn2)cc1 to produce CCOC(=O)CCc1ccc(C(O)c2ccc([N+](=O)[O-])cn2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.