Using COc1ccc(C=O)cc1-c1cc2c(cc1C)C(C)(C)CC(C)C2C to produce COc1ccc(CO)cc1-c1cc2c(cc1C)C(C)(C)CC(C)C2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.