Using O=[N+]([O-])c1ccc(O)cc1, CCCCc1c(/C=C/C(=O)O)cc(OC)c2ccccc12 to produce CCCCc1c(/C=C/C(=O)Oc2ccc([N+](=O)[O-])cc2)cc(OC)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.