Geiparvarin is a

coumarin Coumarin () or 2''H''-chromen-2-one is an aromatic organic chemical compound with formula . Its molecule can be described as a benzene molecule with two adjacent hydrogen atoms replaced by a lactone-like chain , forming a second six-membered h ...

derivative found in the leaves of the Australian Willow (''

Geijera parviflora ''Geijera parviflora'', commonly known as wilga, is a species of shrub or small tree in the family Rutaceae and is endemic to inland parts of eastern Australia. It has drooping branches, linear to narrow lance-shaped leaves, small white flowers ...

''). It is a

monoamine oxidase inhibitor Monoamine oxidase inhibitors (MAOIs) are a class of drugs that inhibit the activity of one or both monoamine oxidase enzymes: monoamine oxidase A (MAO-A) and monoamine oxidase B (MAO-B). They are best known as effective antidepressants, espe ...

. Several analogues of geiparvarin have been studied for antitumor properties.

References

Monoamine oxidase inhibitors Coumarins Phenol ethers Enones Alkene derivatives {{Aromatic-stub