Using CC(C)(C)OC(=O)[C@@H](N)Cc1ccccc1, OB(O)c1ccc(Br)cc1 to produce CC(C)(C)OC(=O)C(Cc1ccccc1)Nc1ccc(Br)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.