Using CC(C)(C)OC(=O)N1CCN(c2ccc(N3CC(COS(C)(=O)=O)OC3=O)cc2F)CC1, [N-]=[N+]=[N-] to produce CC(C)(C)OC(=O)N1CCN(c2ccc(N3CC(CN=[N+]=[N-])OC3=O)cc2F)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.