Using Cc1ccc(Cl)cc1[Pb+3], CC1(C)OC(C)(C)C(=O)CC1=O to produce Cc1ccc(Cl)cc1C1C(=O)C(C)(C)OC(C)(C)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.