Using O=[Mn](=O)(=O)[O-], COC(=O)CCCOc1cc([N+](=O)[O-])c(C=O)cc1OC to produce COC(=O)CCCOc1cc([N+](=O)[O-])c(C(=O)O)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.