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