Meleagrin and its derivatives such as oxaline are bio-active

benzylisoquinoline Substitution of the heterocycle isoquinoline at the C1 position by a benzyl group provides 1‑benzylisoquinoline, the most widely examined of the numerous benzylisoquinoline structural isomers. The 1-benzylisoquinoline moiety can be identified ...

alkaloids Alkaloids are a class of basic, naturally occurring organic compounds that contain at least one nitrogen atom. This group also includes some related compounds with neutral and even weakly acidic properties. Some synthetic compounds of similar ...

made by deep ocean ''

Penicillium ''Penicillium'' () is a genus of ascomycetous fungi that is part of the mycobiome of many species and is of major importance in the natural environment, in food spoilage, and in food and drug production. Some members of the genus produce ...

''.

Notes

Alkaloids from a deep ocean sediment-derived fungus Penicillium sp. and their antitumor activities
Imidazoles Indole alkaloids Lactams Penicillium Heterocyclic compounds with 4 rings Nitrogen heterocycles {{Alkaloid-stub