Using CC(C)[C@@H]1CC(O)OC([C@@H](C)[C@H]2CC(=O)[C@H]3[C@@H]4CCC5CC(O)CC[C@]5(C)[C@H]4CC[C@]23C)C1 to produce CC(C)[C@@H]1CC(O)OC([C@@H](C)[C@H]2CC(=O)[C@@H]3[C@@H]4CCC5CC(O)CC[C@]5(C)[C@H]4CC[C@]23C)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.