Using C[C@]12CC[C@H](O)CC1=CC[C@@H]1[C@@H]2[C@@H](O)C[C@@]2(C)[C@H]1C=CC21OCCO1 to produce C[C@]12CC[C@H](O)CC1=CC[C@@H]1[C@@H]2[C@@H](O)C[C@]2(C)C(=O)C=C[C@@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.