Using COC(=O)[C@@H](Cc1ccc2[nH]c(=O)[nH]c2c1)NC(=O)OCc1ccccc1 to produce COC(=O)[C@H](N)Cc1ccc2[nH]c(=O)[nH]c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.