Using Cn1c(=O)[nH]c(=O)c2[nH]c(Br)nc21, BrCc1ccccc1 to produce Cn1c(=O)[nH]c(=O)c2c1nc(Br)n2Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.