Using Nc1cccc(Cl)c1, Cc1cc(Nc2nc(Cl)nc3ccccc23)[nH]n1 to produce Cc1cc(Nc2nc(Nc3cccc(Cl)c3)nc3ccccc23)[nH]n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.