Using [N-]=[N+]=[N-], Cc1nn(-c2ccc(CCCl)cc2)c(C)c1-c1ccccc1 to produce Cc1nn(-c2ccc(CCN=[N+]=[N-])cc2)c(C)c1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.