Using CCC(C)(C)C(=O)OCc1cccc(C)c1C#CCOc1ccc(C(=O)C(=O)OC)cc1 to produce CCC(C)(C)C(=O)OCc1cccc(C)c1C#CCOc1ccc(C(=O)C(=O)O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.