Using COC(=O)C1Cc2ccccc2CN1S(=O)(=O)c1cc(Cl)cc(Cl)c1 to produce O=C(O)C1Cc2ccccc2CN1S(=O)(=O)c1cc(Cl)cc(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.