Using CCOC(=O)CC(=O)OCc1ccccc1, O=[N+]([O-])c1ccc(F)cc1F to produce CCOC(=O)C(C(=O)OCc1ccccc1)c1ccc([N+](=O)[O-])c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.