Using CCOC(=O)c1[nH]c(=O)c(CC(C)C)[n+]([O-])c1OC to produce COc1c(C(=O)O)[nH]c(=O)c(CC(C)C)[n+]1[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.