Horsfiline is an oxindole

alkaloid Alkaloids are a broad class of natural product, naturally occurring organic compounds that contain at least one nitrogen atom. Some synthetic compounds of similar structure may also be termed alkaloids. Alkaloids are produced by a large varie ...

found in the plant '' Horsfieldia superba'', which is used in traditional

herbal medicine Herbal medicine (also called herbalism, phytomedicine or phytotherapy) is the study of pharmacognosy and the use of medicinal plants, which are a basis of traditional medicine. Scientific evidence for the effectiveness of many herbal treatments ...

. It has

analgesic An analgesic drug, also called simply an analgesic, antalgic, pain reliever, or painkiller, is any member of the group of drugs used for pain management. Analgesics are conceptually distinct from anesthetics, which temporarily reduce, and in s ...

effects and has been the subject of research both to produce it synthetically by convenient routes and to develop analogues and derivatives which may have improved analgesic effects.Alf Claesson, Britt-Marie Swahn, Odd-Geir Berge. Spirooxindole derivatives that act as analgesics. US Patent 6774132
/ref> It is a member of the

spiroindolone The spiroindolones are a class of compounds in which an indolone ring is substituted with another ring in a spiro arrangement. Alkaloids in this class include horsfiline, rhynchophylline, gelsemine, carapanaubine, and maremycin E. Spiroind ...

class. Elacomine has a similar chemical structure.

References

{{reflist Phenol ethers Lactams Oxindoles Pyrrolidine alkaloids Spiro compounds