Using [N-]=[N+]=[N-], Cc1cc(CCCCCOc2c(Cl)cc(C#N)cc2Cl)on1 to produce Cc1cc(CCCCCOc2c(Cl)cc(-c3nnn[nH]3)cc2Cl)on1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.