Using On1c(C(F)(F)F)cc(-c2ccc(Cl)cc2)c1C(F)(F)F to produce FC(F)(F)c1cc(-c2ccc(Cl)cc2)c(C(F)(F)F)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.