Using CC(C)(C)OC(=O)N1CC[C@@H](O)[C@H](F)C1, O=[N+]([O-])c1ccc(F)c(C(F)(F)F)c1 to produce CC(C)(C)OC(=O)N1CC[C@@H](Oc2ccc([N+](=O)[O-])cc2C(F)(F)F)[C@H](F)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.