Using O=Cc1ccc(O)cc1, COc1cc(CCOS(C)(=O)=O)ccc1OS(C)(=O)=O to produce COc1cc(CCOc2ccc(C=O)cc2)ccc1OS(C)(=O)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.