Using O=S(=O)(O)O, COc1ccc(C(=O)c2cc(CCO)on2)cc1 to produce COc1ccc(C(=O)c2cc(CC(=O)O)on2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.