Chemical Examination of Anacardium occidentale

Abstract

A new biflavonoid-C-glycoside named occidentoside, also the known (-)salipurposide and beta-sitosterol, have been isolated from the nut shells of Anacardium occidentale L. (Anacardiaceae). The structure of occidentoside has been established as tetrahydroninokiflavone-C-glucoside (III) from spectral and chemical evidence. This is the first biflavonoid to occur with one flavanone and one chalcone unit and also the first C-glycoside in the biflavonoid series. Identification of (-)salipurposide is also reported since it has been isolated for the first time from cashew nut shells.

Anacardium Plants: Chemical,Nutritional Composition and Biotechnological Applications

“…This is the first biflavonoid, consisting of one flavanone and one chalcone unit, and also the first C-glycoside in the biflavonoid series. The presence of (-)-salipurposide was also reported in cashew nut shells [60].…”

Preparation of a Series of Novel Bichalcones Linked with a 1,4-Dimethylenepiperazine Moiety and Examination of Their Cytotoxicity

“…[14][15][16][17][18][19] The bichalcones are well represented in the Anacardiacea family. 20) In general, naturally occurring bichalcones carry either C-O-C or C-C linkage between the two chalcone units. The Rhus genus is also a rich source for bisflavonoids and bichalcones.…”