Using O=S(=O)([O-])O[O-], CC(=O)c1ccc(OCc2cccc(Sc3cncc(C(=O)O)c3)c2)c(C)c1O to produce CC(=O)c1ccc(OCc2cccc(S(=O)c3cncc(C(=O)O)c3)c2)c(C)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.