Using Cn1c(=O)[nH]c(=O)c2[nH]cnc21, ClC(c1ccccc1)(c1ccccc1)c1ccccc1 to produce Cn1c(=O)[nH]c(=O)c2c1ncn2C(c1ccccc1)(c1ccccc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.