Using O=[N+]([O-])c1ccccc1F, CCOC(=O)c1c(N)cc(C)n1C to produce CCOC(=O)c1c(Nc2ccccc2[N+](=O)[O-])cc(C)n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.