Using CN1C(=O)C(Cl)(Cl)c2cc(S(=O)(=O)Cl)ccc21, NCc1ccccc1 to produce CN1C(=O)C(Cl)(Cl)c2cc(S(=O)(=O)NCc3ccccc3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.