Using CCOC(=O)C(O)c1ccc(-c2ccccc2S)cc1, COS(=O)(=O)OC to produce CCOC(=O)C(O)c1ccc(-c2ccccc2SC)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.