Using [NH4+], O=C(O)CNC(=O)[C@@H]1CCCN1C(=O)[C@@H]1CCC(=O)N1C(=O)OCc1ccccc1 to produce NC(=O)CC[C@H](N)C(=O)N1CCC[C@H]1C(=O)NCC(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.