Using CC(=O)OCc1c(C(C)=O)[n+]([O-])c2ccccc2[n+]1[O-] to produce CC1(O)OCc2c1[n+]([O-])c1ccccc1[n+]2[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.