Using COc1c(Cl)cc(C(=O)N2CS(=O)(=O)c3ccccc32)cc1Cl to produce O=C(c1cc(Cl)c(O)c(Cl)c1)N1CS(=O)(=O)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.