Using COC(=O)/C(=C/c1cc(Br)ccc1F)NC(=O)OC(C)(C)C to produce COC(=O)[C@H](Cc1cc(Br)ccc1F)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.