Using O=C(c1ccccc1)c1ccc(CBr)cc1, O=C1N=Cc2ccccc21 to produce O=C(c1ccccc1)c1ccc(CN2Cc3ccccc3C2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.