Using C#C[C@]1(O)CC[C@H]2[C@@H]3CC(C)C4=C(CC=C(OC)C4)[C@H]3CC[C@@]21CC to produce C#C[C@]1(O)CC[C@H]2[C@@H]3C[C@H](C)C4=CC(=O)CC[C@@H]4[C@H]3CC[C@@]21CC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.