Using CCCOC(=O)C1CCC(C(CO)NC(=O)OC(C)(C)C)CC1 to produce CCCOC(=O)[C@H]1CC[C@H](C(CO)NC(=O)OC(C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.