Using C#CC(CC1=CC(=O)OC(C)(C)O1)(OC(=O)C(=O)OCC)C1CCCC1 to produce C#CC(O)(CC1=CC(=O)OC(C)(C)O1)C1CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.