Using CO[P@](=O)(CN(C(=O)CCCc1ccccc1)[C@@H](CC(C)C)C(=O)[N-]c1ccccc1)[C@H](C)NC(=O)[C@H](C)NC(=O)[C@@H]1CCCN1C(C)=O to produce CC(=O)N1CCC[C@H]1C(=O)N[C@@H](C)C(=O)N[C@@H](C)P(=O)(O)CN(C(=O)CCCc1ccccc1)[C@@H](CC(C)C)C(=O)Nc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.