Taxanes from the bark of Taxus brevifolia

Examination of the extracts of the bark of Taxus brevifolia showed the presence of two new crystalline taxanes: 10β-benzoyloxy-2α,4α-diacetoxy-5β,20-epoxy-1β,7β,9α,13α-tetrahydroxy-11(15 → 1)-abeotaxane and 7,9-deacetyl baccatin IV, along with ponasterone A and three other crystalline taxanes: bacca...

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Bibliographic Details
Published in:Phytochemistry (Oxford) 1996-02, Vol.41 (3), p.863-866
Main Authors: Rao, Koppaka V., Bhakuni, Rajendra S., Hanuman, Jampani B., Davies, Richard, Johnson, James
Format: Article
Language:English
Subjects:
Biological and medical sciences
Chemical constitution
Fundamental and applied biological sciences. Psychology
Plant physiology and development
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Summary:Examination of the extracts of the bark of Taxus brevifolia showed the presence of two new crystalline taxanes: 10β-benzoyloxy-2α,4α-diacetoxy-5β,20-epoxy-1β,7β,9α,13α-tetrahydroxy-11(15 → 1)-abeotaxane and 7,9-deacetyl baccatin IV, along with ponasterone A and three other crystalline taxanes: baccatin IV, 9-dihydro-13-acetyl baccatin III and 1β,7β-dihydroxy-4β,20-epoxy-2α,5α,9α,10β,13α-penta-acetoxy-tax-11-ene,isolated earlier from other species of Taxus.
ISSN:0031-9422
1873-3700
DOI:10.1016/0031-9422(95)00672-9