Using O[C@H](CNCC12CC3CC(CC(C3)C1)C2)c1ccccc1 to produce O[C@H](CNCC12CC3CC(CC(C3)C1)C2)C1CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.