Using FC(F)(F)c1ccc(CBr)cc1Cl, Oc1cc(F)c(Br)cc1F to produce Fc1cc(OCc2ccc(C(F)(F)F)c(Cl)c2)c(F)cc1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.