| Index | Ligand Name | Structure | PDB code | Compound Potency nM |
| 1 | 151 | Crystal structure of human neutrophil elastase complexed with an inhibitor (GW475151) | 1h1b | 0.16 |
| 2 | jjx | Crystal Structure of human neutrophil elastase in complex with a dihydropyrimidone inhibitor | 5a0b | 5 |
| 3 | 2hy | Structure of human neutrophil elastase in complex with a dihydropyrimidone inhibitor | 3q77 | 6 |
| 4 | iuy | Crystal Structure of human neutrophil elastase in complex with a dihydropyrimidone inhibitor | 5a8x | 6.5 |
| 5 | wqq | Neutrophil elastase inhibitors for the treatment of (cardio)pulmonary diseases | 5abw | 17 |
| 6 | iul | Crystal Structure of human neutrophil elastase in complex with a dihydropyrimidone inhibitor | 5a8z | 28 |