Diterpenes from leaves of Juniperus chinensis

Fang Jim-Min, Lee Ching-Kuo, Cheng Yu-Shia

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Sixteen diterpenes, a norditerpene and a secoditerpene were isolated from the leaves of Juniperus chinensis. The structures of new compounds abieta-8,11,13-trien-7β-ol, 13β-hydroxy-7-oxoabiet-8(14)β-en-19,6β-olide (juniperolide), 6,13β-dihydroxy-7-oxoabieta-5,8(14)-dien-19-al (juniperal), 15-oxo-16-norabieta-7,13-dien-19,6β-olide (norjuniperolide), 13β,14β-epoxy-8-oxo-7,8-secoabietan-7,19-olide (secojuniperolide) and 11β-hydroxy-14-oxochinan-19-al (chinanoxal) were determined by spectral methods and X-ray crystallography. Besides the sempervirane, abietane and totarane types having the isopropyl group, respectively, at the C-12, C-13 and C-14 positions, the remaining chinanetype diterpene having an isopropyl group at C-11 is first reported. Occurrence of all four types of diterpenes in this plant is significant.

Original languageEnglish
Pages (from-to)1169-1172
Number of pages4
JournalPhytochemistry
Volume33
Issue number5
DOIs
Publication statusPublished - Jul 23 1993
Externally publishedYes

Keywords

  • abietane-type
  • chinane-type.
  • Cupressaceae
  • diterpenes
  • Juniperus chinensis
  • leaves
  • norditerpene
  • secoditerpene
  • sempervirane-type
  • totarane-type

ASJC Scopus subject areas

  • Plant Science
  • Biochemistry
  • Molecular Biology
  • Organic Chemistry
  • Drug Discovery

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