Using CCCCC[C@H]1OC(=O)[C@@H]1CCCC, O=C(Cl)OCc1ccccc1 to produce CCCCC[C@@H]1OC(=O)[C@]1(CCCC)C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.