Using NCc1ccc(CCC(N)=O)cc1, NC(=N[N+](=O)[O-])NCCC[C@@H](NC(=O)C(c1ccccc1)c1ccccc1)C(=O)O to produce NC(=O)CCc1ccc(CNC(=O)[C@@H](CCCNC(N)=N[N+](=O)[O-])NC(=O)C(c2ccccc2)c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.