Solanocapsine is a toxic

steroidal alkaloid Steroidal alkaloids have the basic steroidal skeleton with nitrogen-based functional groups attached to the skeleton. More specifically, they are distinguished by their tetracyclic cyclopentanoperhydrophenanthrene skeleton that marks their clos ...

from

Jerusalem cherry ''Solanum pseudocapsicum'' is a Solanum, nightshade species with mildly poisonous fruit. It is commonly known as the Jerusalem cherry, Madeira winter cherry, or, ambiguously, "winter cherry (disambiguation), winter cherry". These Perennial plan ...

(''Solanum pseudocapsicum'').

References

Steroidal alkaloids Steroidal alkaloids found in Solanaceae {{alkaloid-stub