Using CCOC(=O)c1cc(O)c2cc(C)oc2c1, FC(F)c1ccc(Br)cc1 to produce CCOC(=O)c1cc(Oc2ccc(C(F)F)cc2)c2cc(C)oc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.