Using FC(F)(F)c1ccc(OCc2ccccc2)c(Br)c1, CCSc1ccc(C=O)cc1 to produce CCSc1ccc(C(O)c2cc(C(F)(F)F)ccc2OCc2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.