Using ClCc1ccccc1, c1cc(-c2n[nH]c(-c3ccncc3)n2)ccn1 to produce c1ccc(Cn2nc(-c3ccncc3)nc2-c2ccncc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.