Using COc1cc2c(cc1-c1ccc(C(F)(F)F)c(F)c1)CCC(=O)N2Cc1ccc(F)cc1F, CC(C)(C)OC(=O)CBr to produce COc1cc2c(cc1-c1ccc(C(F)(F)F)c(F)c1)CC(CC(=O)OC(C)(C)C)C(=O)N2Cc1ccc(F)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.