[来自远东海星多棘海盘车的两种新甾体糖苷]
[Two new steroid glycosides from the Far East starfish Hippasteria kurilensis].
作者信息
Kicha A A, Ivanchina N V, Kalinovskiĭ A I, Dmitrenok P S, Smirnov A V
出版信息
Bioorg Khim. 2009 Jul-Aug;35(4):557-62. doi: 10.1134/s106816200904013x.
Two new steroid glycosides were isolated from the Far East starfish Hippasteria kurilensis collected in the Sea of Okhotsk. They were characterized as (22E,24R)-3-O-(2-O-methyl-beta-D-xylopyranosyl)-24-O-[2-O-methyl-beta-D-xylopyranosyl-(1-->5)-alpha-L-arabinofuranosyl]-5alpha-cholest-22-ene-3beta,4beta,6alpha,7alpha,8,15beta,24-heptaol (kurilensosid I) and (24S)-3-O-(2-O-methyl-beta-D-xylopyranosyl)-24-O-(alpha-L-arabinofuranosyl)-5alpha-cholestan-3beta,4beta,6beta,15alpha,24-pentaol (kurilensosid J). In addition, the earlier known glycosides linkosides F and L1, levisculoside G, forbeside L, desulfated echinasteroside A, and granulatoside A were isolated and identified. The structures of the new compounds were established with the help of bidimentional NMR spectroscopy and mass spectrometry.
从鄂霍次克海采集的远东海星库页海星（Hippasteria kurilensis）中分离出两种新的甾体糖苷。它们被鉴定为(22E,24R)-3-O-(2-O-甲基-β-D-吡喃木糖基)-24-O-[2-O-甲基-β-D-吡喃木糖基-(1→5)-α-L-阿拉伯呋喃糖基]-5α-胆甾-22-烯-3β,4β,6α,7α,8,15β,24-庚醇（库页海星苷I）和(24S)-3-O-(2-O-甲基-β-D-吡喃木糖基)-24-O-(α-L-阿拉伯呋喃糖基)-5α-胆甾烷-3β,4β,6β,15α,24-戊醇（库页海星苷J）。此外，还分离并鉴定了较早已知的糖苷林可苷F和L1、轻盘苷G、福布斯苷L、脱硫海盘车苷A和颗粒苷A。新化合物的结构借助二维核磁共振光谱和质谱得以确定。
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