Using BrCc1ccccc1, CC(=O)C1NCCc2c1[nH]c1ccccc21 to produce CC(=O)C1NCCc2c1n(Cc1ccccc1)c1ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.