Using COC(=O)Cc1cc(Cl)cc(Oc2ccc([N+](=O)[O-])cc2C=O)c1 to produce COC(=O)Cc1cc(Cl)cc(Oc2ccc([N+](=O)[O-])cc2CO)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.