Using [N-]=[N+]=[N-], CCOC(=O)[C@@H]1CC(OS(C)(=O)=O)CN1C(C)=O to produce CCOC(=O)[C@@H]1CC(N=[N+]=[N-])CN1C(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.