Using Nc1cccc(C2CC(=O)Nc3c2ccc2ccccc32)c1, [N-]=[N+]=[N-] to produce [N-]=[N+]=Nc1cccc(C2CC(=O)Nc3c2ccc2ccccc32)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.