Using COC(=O)c1ccc(Oc2cccc(S(C)(=O)=O)c2)cc1 to produce CS(=O)(=O)c1cccc(Oc2ccc(C(=O)O)cc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.