Using ClC(Cl)(Cl)C(Cl)(Cl)Cl, CCc1ncoc1-c1ccc(C(F)(F)F)cc1 to produce CCc1nc(Cl)oc1-c1ccc(C(F)(F)F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.