| Member | Definition | Role |
|---|
| 2-dehydrosparteine | A quinolizidine alkaloid obtained by formal dehydrogenation at the 2,3-position of sparteine. | 2,3-didehydrosparteine |
| 5,6-didehydrosparteine | A quinolizidine alkaloid obtained by formal dehydrogenation at the 5,6-position of sparteine. It is a metabolite of sparteine found in human urine and plasma. | 5,6-didehydrosparteine |
| lupanine | The delta-lactam obtained by formal oxidation at the 2-position of sparteine. The major alkaloid from the seeds of Lupinus exaltatus, L. mexicanus and L. rotundiflorus, it is among the most important of the tetracyclic quinolizidine alkaloids. | lupanine |
| lupinine | | lupinine |
| lycopodine | | lycopodine |
| N-(4-chlorophenoxy)sulfonylcarbamic acid [(1R,9aR)-2,3,4,6,7,8,9,9a-octahydro-1H-quinolizin-1-yl]methyl ester | | N-(4-chlorophenoxy)sulfonylcarbamic acid [(1R,9aR)-2,3,4,6,7,8,9,9a-octahydro-1H-quinolizin-1-yl]methyl ester |
| sparteine | | sparteine |