Phytoecdysteroids and glycoceramides from Eriophyton wallchii

Two new compounds, 28-epi-cyasterone and eriophytonoide, along with I I known compounds, cyasterone, ajuforrestins A and 13, 20-hydroxyecdysone, polypodin 13, ajugalactone, 8-O-acetylharpagid, apigenin, N-[2hydroxy-(nonadecanoyl-tricosanoyl)1-4-hydroxy-trans-8-sphingenine, beta-sitosterol, and daucosterol, were isolated from the aqueous ethanolic extract of the whole herb of Eriophyton wallchii Benth. The structures of 28-epi-cyasterone and eriophytonoide were elucidated as (22R,24S,25S,28S)-5beta-stigmast-7-en-26-oic acid, 2beta,3beta,14,20,22,28-hexahydroxy-6-oxo-gamma-lactone, and 1-O-beta-D-glucopyranosyl -(2S,3S,4R,8E)-2- [(2R)-2-hydroxyhexadecanoylamino]-1,3,4-octadecanetriol-8-ene, respectively, on the basis of spectral and chemical evidence. (C) 2004 Elsevier Inc. All rights reserved