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 journalArticlepeer-review

    18 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 - 1999 Apr 1

    ASJC Scopus subject areas

    • Analytical Chemistry
    • Pharmacology
    • Organic Chemistry

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