Using CCOC(=O)N1CCN(c2c(F)cc([N+](=O)[O-])c(F)c2CCl)CC1 to produce CCOC(=O)N1CCN(c2c(F)cc([N+](=O)[O-])c(F)c2C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.