Using CS(=O)(=O)OCC1CCC2CN(c3ncccn3)CCN2C1, [N-]=[N+]=[N-] to produce [N-]=[N+]=NCC1CCC2CN(c3ncccn3)CCN2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.