New steroid glycosides from the starfish Fromia milleporella

被引：0
|
作者：
E. V. Levina
A. I. Kalinovsky
V. S. Levin
机构：
[1] Russian Academy of Sciences,Pacific Institute of Bioorganic Chemistry, Far East Division
来源：
Russian Journal of Bioorganic Chemistry | 2006年 / 32卷
关键词：
glycosides; MALDI TOF mass spectra; NMR spectra; polyhydroxysteroids; starfish Fromia milleporella;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Two new steroid glycosides from the starfish Fromia milleporella collected in the Seychelles were isolated and characterized: milleporoside A, (20R, 24R)-29-O-[3-O-methyl-β-D-xylopyranosyl-(1→4)-3-O-methyl-β-D-xylopyranosyl]-24-ethyl-5α-cholestane-3β,4β,6α,8,15β,16β,29-heptaol, and milleporoside B, (20R, 24R)-(22E)-28-O-[3-O-methyl-β-D-xylopyranosyl-(1→4)-3-O-methyl-β-D-xylopyranosyl]-24-methyl-5α-cholest-22-ene-3β,4β,6α,8,15β,16β,28-heptaol. The structures of the glycosides were determined from their spectra and a comparison with spectral characteristics of known compounds. These compounds exhibit a moderate cytostatic activity toward the embryos of the sea urchin Strongylocentrotus intermedius.
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页码：84 / 88
页数：4
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