Structure elucidation and complete NMR spectral assignments of three new lanostanoid triterpenes with unprecedented Δ16,17 double bond from Ganoderma lucidum

Shu Hong Guan, Min Yang, Xiao-Ming Wang, Jia Meng Xia, Zhi Ming Zhang, Xuan Liu, De An Guo

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Three new lanostanoid triterpenes named 3β,7β-dihydroxy-11,15,23- trioxo-lanost-8,16-dien-26-oic acid (1), 3β,7β-dlhydroxy-11,15,23- trioxo-lanost-8,16-dien-26-oic acid methyl ester (2), and 12β-acetoxy- 3β7β-dihydroxy11,15,23-trioxo-lanost-8,16-dien-26-oic acid (3) were isolated from the fruit bodies of Ganoderma lucidum. They all show a Δ16,17 double bond unprecedented in such types of lanostanoid triterpenes possessing the side chain at C-17. The complete NMR assignments for these compounds were carried out using 1H, 13C, DEPT, COSY, HSQC, HMBC, and ROESY NMR experiments.

Original languageEnglish (US)
Pages (from-to)789-791
Number of pages3
JournalMagnetic Resonance in Chemistry
Volume45
Issue number9
DOIs
StatePublished - Sep 2007
Externally publishedYes

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Keywords

  • C
  • H
  • Ganoderma lucidum
  • Lanostanoid triterpenes
  • NMR

ASJC Scopus subject areas

  • Chemistry(all)
  • Physical and Theoretical Chemistry
  • Spectroscopy

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