Using C[C@@H]1CCN(CCc2ccc(F)cc2)C[C@H]1CN=[N+]=[N-] to produce C[C@@H]1CCN(CCc2ccc(F)cc2)C[C@H]1CN, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.