Using CC(O)[C@@H]1C[C@@H]2OC(C)(C)O[C@@H]2O1, O=C(Cl)c1ccccc1 to produce CC(OC(=O)c1ccccc1)[C@@H]1C[C@@H]2OC(C)(C)O[C@@H]2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.