Using O=C(Oc1ccccc1[C@@H]1O[C@@]2(COCc3ccccc3)CO[C@@H]1[C@@]2(O)Cc1ccccc1)c1ccccc1 to produce O=C(Oc1ccccc1[C@@H]1O[C@@]2(CO)CO[C@@H]1[C@@H]2O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.