N[C@H](Cc1c[nH]c2ccccc12)C(=O)NN(Cc1ccccc1)C(=O)N[C@H](Cc1c[nH]c2ccccc12)C(=O)O
CC(C)C[C@H](NC(=O)[C@@H](Cc1c[nH]c2ccccc12)NC(=O)CN(N)Cc1ccccc1)C(=O)O
The above compounds are trypsin inhibitors. You can find more in this publication. https://www.sciencedirect.com/science/article/abs/pii/S0008622309005338