Using CC1(C)NC(=O)N(C(=O)c2cccc3ccccc23)C1=O, O=C(CBr)c1ccccc1 to produce CC1(C)C(=O)N(C(=O)c2cccc3ccccc23)C(=O)N1CC(=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.