Using O=Cc1ccc(CBr)cc1, CC(C)C[C@H](N)C(=O)OC1CCCC1 to produce CC(C)C[C@H](NCc1ccc(CBr)cc1)C(=O)OC1CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.