Using Nc1c(Cl)cccc1Cl, CN(Cc1ccccc1)C(=O)Cc1ccccc1Br to produce CN(Cc1ccccc1)C(=O)Cc1ccccc1Nc1c(Cl)cccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.