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

15 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 1 2007
Externally publishedYes

Keywords

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

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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