Using Clc1nc(Cl)c2ccccc2n1, NCc1ccc(-c2ccccc2-c2nnn[nH]2)cc1 to produce Clc1nc(NCc2ccc(-c3ccccc3-c3nnn[nH]3)cc2)c2ccccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.