Using [N-]=[N+]=[N-], CS(=O)(=O)OC1CCN(C(=O)OCc2ccc([N+](=O)[O-])cc2)CC1 to produce [N-]=[N+]=NC1CCN(C(=O)OCc2ccc([N+](=O)[O-])cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.