Using Cc1cc(O)c(Br)c(=O)n1CC1CC1, Fc1ccc(CBr)c(F)c1 to produce Cc1cc(OCc2ccc(F)cc2F)c(Br)c(=O)n1CC1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.