Using COC(=O)C(Cl)CC(C)C1=CCC2C(OC(C)=O)CCCC12C to produce CC(=O)OC1CCCC2(C)C(C(C)CC(Cl)CO)=CCC12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.