Using C[C@]12CC[C@H](O)CC1=CC[C@@H]1[C@@H]2CC[C@]2(C)OCC[C@@H]12 to produce C[C@]12CCC(=O)C=C1CC[C@@H]1[C@@H]2CC[C@]2(C)OCC[C@@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.