Three new rearranged taxane diterpenoids from the bark of Taxus chinensis var. Mairei and the needles of Taxus cuspidata

Shi Qing-wen, Takayuki Oritani, Takeyoshi Sugiyama, Hiromasa Kiyota, Tohru Horiguchi

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Three new rearranged taxane diterpenoids with 5/7/6-membered ring system were isolated from the bark of Taxus chinensis var. mairei (1 and 2) and the needles of T. cuspidata (3). The structures of them were established as 2α,7β-diacetoxy-5α, 10β, 13α, 15-tetrahydroxy-4β(20)-epoxy-9α- benzoyloxy-11-(15→1)abeotax-11-ene (1), 2α,4α-diacetoxy-7β-benzoyloxy- 5β,20-epoxy-9α, 10β,13α, 15-tetrahydroxy-11(15→1)abeotax-11-ene (2), and 4α,7β-diacetoxy-2α-benzoyloxy-5β,20-epoxy-9α,10β,13α, 15-tetrahydroxy- 11 (15→1)abeotax-11-ene (3) on the basis of spectral data including 2D NMR spectroscopies.

Original languageEnglish
Pages (from-to)841-850
Number of pages10
JournalHeterocycles
Volume51
Issue number4
Publication statusPublished - Apr 1 1999
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Pharmacology
  • Organic Chemistry

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