Using COc1ccc2c(c1)C[C@@H](C)[C@H]1C3=CC[C@H](O)[C@@]3(C)CC[C@H]21 to produce COc1ccc2c(c1)C[C@@H](C)[C@@H]1[C@@H]2CC[C@@]2(C)[C@@H]1CC[C@@H]2O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.