Using ClC(Cl)(Cl)Cl, Nc1nc(Oc2ccc(F)c(C(F)(F)F)c2)cc(Oc2ccc(F)c(C(F)(F)F)c2)n1 to produce Fc1ccc(Oc2cc(Oc3ccc(F)c(C(F)(F)F)c3)nc(Cl)n2)cc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.