Using CC(=O)N[C@H](Cc1ccc(-c2ccccc2)cc1)C(=O)N1CCC[C@H]1C(=O)O, NCc1ccc2c(N)nccc2c1 to produce CC(=O)N[C@H](Cc1ccc(-c2ccccc2)cc1)C(=O)N1CCC[C@H]1C(=O)NCc1ccc2c(N)nccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.