Using O=C1C[C@@H]2[C@@H](CCC3(COc4ccccc4)OCCO3)[C@H](OC(=O)c3ccccc3)C[C@@H]2O1 to produce OC1C[C@@H]2[C@@H](CCC3(COc4ccccc4)OCCO3)[C@H](O)C[C@@H]2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.