Using COc1ccc(OC)c(C(=O)CNC(=O)CN=[N+]=[N-])c1 to produce COc1ccc(OC)c(C(O)CNC(=O)CN=[N+]=[N-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.