Using [N-]=[N+]=[N-], Cc1cc(C)cc(C(=O)c2c(C(C)C)c(=O)[nH]c(=O)n2C/C=C/CCl)c1 to produce Cc1cc(C)cc(C(=O)c2c(C(C)C)c(=O)[nH]c(=O)n2C/C=C/CN=[N+]=[N-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.