Using O=C1NC(=O)c2ccccc21, COc1ccc2c(c1)C(CCCBr)=CCC2 to produce COc1ccc2c(c1)C(CCCN1C(=O)c3ccccc3C1=O)=CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.