Using O=[N+]([O-])c1ccccc1F, CC(C)(C)OC(=O)N[C@H](CO)C(=O)O to produce CC(C)(C)OC(=O)N[C@H](COc1ccccc1[N+](=O)[O-])C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.