Using Fc1ccc(CBr)cc1, O=C(O)c1cc(Br)ccc1O to produce O=C(OCc1ccc(F)cc1)c1cc(Br)ccc1OCc1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.