Using COc1cc([N+](=O)[O-])c(C(=O)OCc2ccccc2)cc1OCc1ccccc1 to produce COc1cc([N+](=O)[O-])c(C(=O)O)cc1OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.