Using O=S1(=O)CC2(CCCCC2)C2OC2(c2ccccc2)c2ccccc21 to produce O=S1(=O)CC2(CCCCC2)[C@@H](O)[C@H](c2ccccc2)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.