| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Purines | 100 | + | |
| 2 | Indoles | 68 | + | |
| 3 | Benzopyrans | 62 | + | |
| 4 | Quinolines | 56 | + | |
| 5 | Isoindoles | 39 | + | |
| 6 | Benzazepines | 37 | + | |
| 7 | Pteridines | 26 | + | |
| 8 | Bicyclo Compounds, Heterocyclic | 18 | + | |
| 9 | Benzimidazoles | 18 | + | |
| 10 | Isoquinolines | 16 | + | |
| 11 | Benzofurans | 10 | + | |
| 12 | Quinazolines | 8 | + | |
| 13 | Benzothiazoles | 5 | + | |
| 14 | Thienopyridines | 5 | + | |
| 15 | Quinoxalines | 5 | + | |
| 16 | Benzothiadiazines | 3 | + | |
| 17 | Quinolizines | 3 | + | |
| 18 | Benzodioxoles | 3 | + | |
| 19 | Indazoles | 3 | + | |
| 20 | Benzoxazines | 2 | + | |
| 21 | Benzoxazoles | 2 | + | |
| 22 | Naphthyridines | 1 | + |