Using NS(=O)(=O)c1ccccc1Cl, Cc1cc2nc(Cl)c(Cl)nc2cc1C to produce Cc1cc2nc(Cl)c(NS(=O)(=O)c3ccccc3Cl)nc2cc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.