Using Oc1ccc(Oc2cccc(F)c2)cc1Cl, OCc1ccc(Cl)cc1 to produce Fc1cccc(Oc2ccc(OCc3ccc(Cl)cc3)c(Cl)c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.