Using CN1CC[C@]23c4c5ccc(O)c4O[C@H]2C(=O)C=C[C@@]3(O)[C@@H]1C5 to produce CN1CC[C@]23c4c5ccc(O)c4O[C@H]2C(=O)CC[C@@]3(O)[C@H]1C5, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.