Using CCOC(=O)c1cc([N+](=O)[O-])c(N)cc1F, OCC(F)F to produce CCOC(=O)c1cc([N+](=O)[O-])c(N)cc1OCC(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.