Using CC(C)C[C@@H](C(=O)OC(C)(C)C)N1C(=O)N[C@@](C)(c2ccc(Br)cc2)C1=O, BrCc1ccccc1 to produce CC(C)C[C@@H](C(=O)OC(C)(C)C)N1C(=O)N(Cc2ccccc2)[C@@](C)(c2ccc(Br)cc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.