Using [N-]=[N+]=[N-], Cc1c(C#N)oc2c(c1=O)CSc1ccccc1-2 to produce Cc1c(-c2nnn[nH]2)oc2c(c1=O)CSc1ccccc1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.