Iridoid glycosides and phenolic glycosides from Holmskioldia sanguinea

被引:30
作者
Helfrich, E [1 ]
Rimpler, H [1 ]
机构
[1] Univ Freiburg, Inst Pharmazeut Biol, D-79104 Freiburg, Germany
关键词
Holmskioldia sanguinea; Labiatae; Verbenaceae; iridoids; monoesters of rhamnopyranosylcatalpol; phenolic glycosides; centrifugal partition chromatography; CPC;
D O I
10.1016/S0031-9422(98)00559-7
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Four new iridoids, 6-O-alpha-L-(2 "-O-trans-cinnamoyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(3 "-O-trans-cinnamoyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(4 "-O-trans-cinnamoyl)rhamnopyranosylcatalpol and 6-O-alpha-L-(4 "-O-cis-feruloyl)rhamnopyranosylcatalpol, along with three known monoacyl rhamnopyranosylcatalpol derivatives have been isolated from the aerial parts of Holmskioldia sanguinea. Catalpol was identified by GC and GC-MS analysis. Three known phenolic glycosides, isolated in small amounts, were identified as methyl salicylate glucoside, osmanthuside H, and icariside F-2. The structures were established by spectroscopic methods. The taxonomic significance of our results is discussed. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:619 / 627
页数:9
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