Using CC(=O)O[C@@H]1C(C)=C[C@H]2[C@H](C(C)(O)CO)CC[C@H](C)[C@]23OC(C)(C)O[C@@H]13 to produce CC(=O)O[C@@H]1C(C)=C[C@H]2[C@H](C(C)=O)CC[C@H](C)[C@]23OC(C)(C)O[C@@H]13, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.