Using O=Cc1ccc(O)c(C(=O)O)c1, Fc1ccc(CBr)cc1F to produce O=Cc1ccc(OCc2ccc(F)c(F)c2)c(C(=O)OCc2ccc(F)c(F)c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.