Using COC(=O)[C@@H]1CC[C@H](c2ccc(OCc3ccccc3F)cc2)N1C(=O)OC(C)(C)C, BrC/C=C\CBr to produce COC(=O)[C@]1(C/C=C\CBr)CC[C@H](c2ccc(OCc3ccccc3F)cc2)N1C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.