Using O=[N+]([O-])c1ccccc1-c1nc2cccc(CO)c2[nH]1 to produce O=Cc1cccc2nc(-c3ccccc3[N+](=O)[O-])[nH]c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.