Using O=C1NC(=O)c2ccccc21, O=Cc1ccc(CBr)c2ccccc12 to produce O=Cc1ccc(CN2C(=O)c3ccccc3C2=O)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.