Terpenoids and flavonoids from Arenaria kansuensis.

Abstract

A new steroid, 22, 23-dihydrospinasterol plamitate was isolated from the whole plants of Arenaria kansuensis (Caryophyllaceae) and its structure was determined by chemical and spectroscopic means. 22, 23-Dihydrospinasterol, 22, 23-dihydrospinasterone, ergosterol-5, 8-peroxide, 24-methylene-22, 23-dihydrolanosterol, zeorin, fernenone, β-sitosterol 3β-O-β-D-glucopyranoside, tricin, (+)-isoscoparin and (-)-isoscoparin were also isolated.