Using CI, Clc1ccc(-c2nc[nH]c2-c2ccc(Cl)cc2Cl)c(Cl)c1 to produce Cn1cnc(-c2ccc(Cl)cc2Cl)c1-c1ccc(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.