Using COc1cc(C(=O)O)ccc1O, O=C[C@@](O)(Cc1ccccc1)[C@](O)(Cc1ccccc1)[C@@](O)(Cc1ccccc1)[C@H](O)C(O)Cc1ccccc1 to produce COc1cc(CC(=O)[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO)ccc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.