Using CC1(C)O[C@H](CCl)C[C@H](CC(=O)O)O1, CC(C)(C)Cl to produce CC(=O)OC[C@@H]1C[C@H](CC(=O)OC(C)(C)C)OC(C)(C)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.