Using Nc1c(Cl)cccc1Cl, CCc1nc(S(=O)(=O)Cl)nn1-c1ccccc1 to produce CCc1nc(S(=O)(=O)Nc2c(Cl)cccc2Cl)nn1-c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.