Solanocapsine is a toxic

steroidal alkaloid Steroidal alkaloids have organic ring backbones which feature nitrogen-based functional groups. More specifically, they are distinguished by their tetracyclic cyclopentanophenanthrene backbone that marks their close relationship with sterols. They ...

from ''Solanum pseudocapsicum'' ( Jerusalem cherry).

References

{{Reflist Steroidal alkaloids Steroidal alkaloids found in Solanaceae