Using CC12CC(=O)Nc3cccc(c31)NC2=O, CC(C)(C)OC(=O)CBr to produce CC(C)(C)OC(=O)CN1C(=O)C2(C)CC(=O)Nc3cccc1c32, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.