Using CCOC(=O)C(C(=O)OCC)c1ncc(Br)cc1[N+](=O)[O-], CC(OS(C)(=O)=O)c1c(Cl)ccc(F)c1Cl to produce CC(On1ccc2ncc(Br)cc21)c1c(Cl)ccc(F)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.