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