Using COC(=O)CC1(CS[C@H](CCc2ccccc2C(C)(C)O)c2cccc(CO)c2)CC1 to produce COC(=O)CC1(CS[C@H](CCc2ccccc2C(C)(C)O)c2cccc(C=O)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.