Using O=Cc1ccc2c(c1)OCO2, COC(=O)[C@@H]1C[C@@H](N(C(=O)CC(C)(C)C)c2cccc(OC)c2)CN1 to produce COC(=O)[C@@H]1C[C@@H](N(Cc2cccc(OC)c2)C(=O)CC(C)(C)C)CN1Cc1ccc2c(c1)OCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.