Cucurbitin is an amino acid and a carboxy

pyrrolidine Pyrrolidine, also known as tetrahydropyrrole, is an organic compound with the molecular formula (CH2)4NH. It is a cyclic secondary amine, also classified as a saturated heterocycle. It is a colourless liquid that is miscible with water and most ...

that is found in '' Cucurbita'' seeds. Cucurbitin causes degenerative changes in the reproductive organs of parasitic flatworms called

fluke Fluke may refer to: Biology * Fluke (fish), a species of marine flatfish * Fluke (tail), the lobes of the tail of a cetacean, such as dolphins or whales, ichthyosaurs, mosasaurs Mosasaurs (from Latin ''Mosa'' meaning the 'Meuse', and Greek ...

s.Annual Reports in Medicinal Chemistry
Cornelius Kennedy Cain, 1966, Academic Press,

References

Amino acids Pyrrolidines Plant toxins {{heterocyclic-stub