Using CCOC(=O)C1Oc2ccc(Br)cc2C1=O, O=[N+]([O-])c1ncccc1F to produce CCOC(=O)C1(c2cccnc2[N+](=O)[O-])Oc2ccc(Br)cc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.