Thediarylheptanoids (also known asdiphenylheptanoids) are a class of plantsecondary metabolites. Diarylheptanoids consist of two aromatic rings (aryl groups) joined by a seven carbons chain (heptane) and having various substituents.[1] They can be classified into linear (curcuminoids) and cyclic diarylheptanoids. The best known member iscurcumin, which is isolated fromturmeric (Curcuma longa) and is known as food coloring E100. Some otherCurcuma species, such asCurcuma comosa also produce diarylheptanoids.
They have been reported from plants in 10 different families, e.g.Betulaceae andZingiberaceae.
^Hölscher, Dirk; Schneider, Bernd (1995). "A diarylheptanoid intermediate in the biosynthesis of phenylphenalenones in Anigozanthos preissii".Journal of the Chemical Society, Chemical Communications (5):525–526.doi:10.1039/C39950000525.
^Brand, S; Hölscher, D; Schierhorn, A; Svatos, A; Schröder, J; Schneider, B (2006). "A type III polyketide synthase from Wachendorfia thyrsiflora and its role in diarylheptanoid and phenylphenalenone biosynthesis".Planta.224 (2):413–428.doi:10.1007/s00425-006-0228-x.PMID16496097.S2CID38508249.
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