Using CC(C)(C)OC(=O)CNC(=O)[C@H](NC(=O)OCc1ccccc1)c1ccccc1 to produce CC(C)(C)OC(=O)CNC(=O)[C@H](N)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.