Using O=C(O)CC(O)(CC(=O)O)C(=O)O, O=C(Nc1ccccc1)c1ccc(F)c([N+](=O)[O-])c1 to produce CCOc1ccc(C(=O)Nc2ccccc2)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.