Using O=S(=O)([O-])c1ccc2cc(O)c(S(=O)(=O)[O-])cc2c1, [OH-] to produce O=S(=O)(O)c1ccc2cc(O)c(O)cc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.