Using ClCc1ccc(Cl)cc1, Nc1nc2ccc(Cl)cc2[nH]1 to produce N=c1n(Cc2ccc(Cl)cc2)c2ccc(Cl)cc2n1Cc1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.