Using C#C[C@]1(OC(C)=O)[C@@H]2C[C@@H]2[C@H]2[C@@H]3CCC4=CC(=O)CC[C@@H]4[C@H]3CC[C@@]21CC to produce C#C[C@]1(OC(C)=O)[C@@H]2C[C@@H]2[C@H]2[C@@H]3CCC4=C[C@@H](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.