Using O=C1OC(=O)[C@H]2C3C=CC(C3)[C@@H]12, O=C1O[C@H]([C@@H](O)CO)C(O)=C1O to produce O=C1O[C@H]([C@@H](O)COC(=O)C2C3C=CC(C3)C2C(=O)O)C(O)=C1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.