New 11(15→1)abeotaxane, 11(15→1),11(10→9)bisabeotaxane and 3,11-cyclotaxanes from Taxus yunnanensis

Hiromasa Kiyota, Qing Wen Shi, Takayuki Oritani, Ligeng Li

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    Chemical examination of the seeds of Chinese yew, Taxus yunnanensis Cheng et L. K. Fu resulted in the isolation of an 11(15→1)abeotaxane, an 11(15→1), 11(10→9)bisabeotaxane and two 3,11-cyclotaxanes. The structures of these new taxoids were established as 13α-acetoxy-5α-cinnamoyloxy-11(15→1)abeotaxa-4(20),11-diene- 9α,10β,15-triol (1), 20-acetoxy-2α-benzoyloxy-4α, 5α, 7β, 9β, 13β - pentahydroxy-11(15→1), 11(10→9) bisabeotax-11-eno-10,15-lactone (2), 2α,10β-diacetoxy-5α-cinnamoyloxy-9α-hydroxy-3,11- cyclotax-4(20)-en-13-one (3) and 10β-acetoxy-2α,5α,9α-trihydroxy-3,11-cyclotax-4(20)-en- 13-one (4) on the basis of spectral analyses.

    Original languageEnglish
    Pages (from-to)35-40
    Number of pages6
    JournalBioscience, Biotechnology and Biochemistry
    Volume65
    Issue number1
    DOIs
    Publication statusPublished - 2001 Jan 1

    Keywords

    • 11(15→1), 11(10→9)bisabeotaxane
    • 11(15→1)abeotaxane
    • 3,11-cyclotaxane
    • Taxanes
    • Taxus yunnanensis Cheng et L. K. Fu

    ASJC Scopus subject areas

    • Biotechnology
    • Analytical Chemistry
    • Biochemistry
    • Applied Microbiology and Biotechnology
    • Molecular Biology
    • Organic Chemistry

    Fingerprint

    Dive into the research topics of 'New 11(15→1)abeotaxane, 11(15→1),11(10→9)bisabeotaxane and 3,11-cyclotaxanes from Taxus yunnanensis'. Together they form a unique fingerprint.

    Cite this