| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Indoles | 100 | + | |
| 2 | Benzopyrans | 89 | + | |
| 3 | Quinolines | 48 | + | |
| 4 | Pteridines | 39 | + | |
| 5 | Purines | 38 | + | |
| 6 | Quinazolines | 16 | + | |
| 7 | Isoquinolines | 10 | + | |
| 8 | Quinoxalines | 8 | + | |
| 9 | Benzazepines | 7 | + | |
| 10 | Bicyclo Compounds, Heterocyclic | 6 | + | |
| 11 | Isoindoles | 4 | + | |
| 12 | Benzimidazoles | 4 | + | |
| 13 | Indazoles | 3 | + | |
| 14 | Benzofurans | 2 | + | |
| 15 | Benzodioxoles | 2 | + | |
| 16 | Benzothiazoles | 1 | + | |
| 17 | Naphthyridines | 1 | + | |
| 18 | Quinolizines | 1 | + |