Using Nc1ccc(NC(=O)Nc2ccccc2I)c(O)c1, [N-]=[N+]=[N-] to produce [N-]=[N+]=Nc1cccc(NC(=O)Nc2ccccc2I)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.