Using O=[N+]([O-])c1ccc(O)cc1, COc1ccc(-c2c(/C=C/C(=O)O)ccc3cc(OC)ccc23)cc1 to produce COc1ccc(-c2c(/C=C/C(=O)Oc3ccc([N+](=O)[O-])cc3)ccc3cc(OC)ccc23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.