Using O=[N+]([O-])c1ccc(O)cc1, COc1cccc(C(=C/C=C/C(=O)O)c2cccc(OC)c2)c1 to produce COc1cccc(C(=C/C=C/C(=O)Oc2ccc([N+](=O)[O-])cc2)c2cccc(OC)c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.