Using COC(=O)C(CC1(C)CCCC1)NC(=O)OCc1ccccc1 to produce COC(=O)[C@@H](CC1(C)CCCC1)NC(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.