Using COC(=O)Cn1c(C)cc2cc(Cl)ccc21, O=Cc1sccc1S(=O)(=O)c1ccccc1 to produce COC(=O)Cn1c(C)c(Cc2sccc2S(=O)(=O)c2ccccc2)c2cc(Cl)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.