Table 1.
Main types of Amaryllidaceae alkaloids grouped according to their ring type and biosynthetic origin.
| Number | Type Name | Ring-Type |
|---|---|---|
| I | Norbelladine | N-(3,4-Dioxybenzyl)-4-oxyphenethylamine |
| II | Cherylline | Tetrahydroisoquinoline |
| III | Galantamine | 6H-Benzof,f]-2-benzazepine |
| IV | Lycorine | Pyrrolo[d,e]phenanthridine |
| V | Homolycorine | 2-Benzopyrano-[3,4-g]indole |
| VI | Crinine | 5,10b-Ethanophenanthridine |
| VII | Narciclasine | Lycoricidine |
| VIII | Pretazettine | 2-Benzopyrano [3,4-c]indole |
| IX | Montanine | 5,11-Methanomorphanthridine |
| X | Other | Different ring types and biogenetic origin |