Using ClCc1coc2cc(Oc3nc4ncccc4s3)ccc12, [N-]=[N+]=[N-] to produce [N-]=[N+]=NCc1coc2cc(Oc3nc4ncccc4s3)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.