New 2(3→20)Abeotaxane and 3,11-Cyclotaxane from Needles of Taxus cuspidata

Qing-Wen SHI; Zuo-Ping LI; Ding ZHAO; Ji-Shun GU; Takayuki ORITANI; Hiromasa KIYOTA

doi:10.1271/bbb.68.1584

Bioscience, Biotechnology, and Biochemistry

Online ISSN : 1347-6947
Print ISSN : 0916-8451

Organic Chemistry Notes

New 2(3→20)Abeotaxane and 3,11-Cyclotaxane from Needles of Taxus cuspidata

Qing-Wen SHI, Zuo-Ping LI, Ding ZHAO, Ji-Shun GU, Takayuki ORITANI, Hiromasa KIYOTA

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Keywords: Taxus cuspidata, Taxaceae, needles, 2(3→20)abeotaxane, 3,11-cyclotaxane

JOURNAL FREE ACCESS

2004 Volume 68 Issue 7 Pages 1584-1587

DOI https://doi.org/10.1271/bbb.68.1584

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Abstract

Two new taxoid metabolites, 2α,7β,10β-triacetoxy-5α,13α-dihydroxy-2(3→20)abeotaxa-4(20),11-dien-9-one (1) and 2α-acetoxy-5α-cinnamoyloxy-9α,10β-dihydroxy-3,11-cyclotax-4(20)-en-13-one (2), were isolated from the methanol extract of needles of the Japanese yew, Taxus cuspidata.

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