Using Cc1[nH]c2ccc(C(F)(F)F)cc2c1Oc1ccc(Cl)cc1, COC(=O)CBr to produce COC(=O)Cn1c(C)c(Oc2ccc(Cl)cc2)c2cc(C(F)(F)F)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.