Using O=C(O)c1cc(Br)ccc1O, Fc1cccc(CBr)c1 to produce O=C(OCc1cccc(F)c1)c1cc(Br)ccc1OCc1cccc(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.