| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Pyrimidines | 100 | + | |
| 2 | Azoles | 95 | + | |
| 3 | Piperazines | 16 | + | |
| 4 | Pyridines | 16 | + | |
| 5 | Piperidines | 14 | + | |
| 6 | Azirines | 13 | + | |
| 7 | Oxazines | 10 | + | |
| 8 | Pyrrolidines | 7 | + | |
| 9 | Triazines | 4 | + | |
| 10 | Furans | 4 | + | |
| 11 | Dioxoles | 2 | + | |
| 12 | Pyrazines | 1 | + | |
| 13 | Pyrans | 1 | + | |
| 14 | Pyridazines | 1 | + | |
| 15 | Thiophenes | 1 | + |