Using COc1cc([N+](=O)[O-])ccc1F, Oc1ccc(Cl)c(Cl)c1 to produce COc1cc([N+](=O)[O-])ccc1Oc1ccc(Cl)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.