Using OCc1cccc(Oc2ccc(C(F)(F)F)cc2Cl)c1, COC(=O)CBr to produce COC(=O)COCc1cccc(Oc2ccc(C(F)(F)F)cc2Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.