Novel taxoids from the Chinese yew Taxus yunnanensis
Li, SH; Zhang, HJ; Niu, XM; Yao, P; Sun, HD; Fong, HHS
2003
发表期刊TETRAHEDRON
ISSN0040-4020
卷号59期号:1页码:37-45
摘要Six new taxoids, taxuyunnanines W (1), X (2), Y (3), Z (5), 10-deacetyl-10-(beta-glucopyranosyl)-yunnanxane (8), and 7-(beta-xylosyl)-N-methyl-taxol C (10), as well as taxuchin B (4) and yunnanxane (7), have been isolated from the bark of Taxus yunnanensis. Compounds 1 and 2 were characterized as 11 (15-->1)-abeo taxoids containing an orthoester group, which have not been reported from any Taxus plants to date; isolates 3 and 5 are the examples of taxanes having a tetrahydronfuran ring, being reported only for the second time; and 8 is the first natural 6/8/6 skeletal type taxane glucosidic form. This is also the first report of a co-occurrence of xylosidation and N-methylation in a taxane (10). Compound 4 is the only known chlorine-containing taxane found in nature thus far, and is being reported from this plant for the first time. The structures were determined by spectroscopic and chemical means including 1D and 2D NMR spectra. (C) 2002 Elsevier Science Ltd. All rights reserved.
关键词Taxus Yunnanensis Taxaceae Barks Abeotaxoids Taxane Glycosides Orthoester C-2(20) Epoxide Taxuyunnanines W-z 7-(Beta-xylosyl)-n-methyl-taxol c 10-deacetyl-10-(Beta-glucopyranosyl)-yunnanxane
学科领域Chemistry, Organic
收录类别SCI ; IC
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Organic
WOS记录号WOS:000180271500002
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/4606
专题植物化学与西部植物资源持续利用国家重点实验室
作者单位1.Univ Illinois, Program Collaborat Res Pharmaceut Sci, Dept Med Chem & Pharmacognosy, Coll Pharm, Chicago, IL 60612 USA
2.Chinese Acad Sci, Lab Phytochem, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China
推荐引用方式
GB/T 7714
Li, SH,Zhang, HJ,Niu, XM,et al. Novel taxoids from the Chinese yew Taxus yunnanensis[J]. TETRAHEDRON,2003,59(1):37-45.
APA Li, SH,Zhang, HJ,Niu, XM,Yao, P,Sun, HD,&Fong, HHS.(2003).Novel taxoids from the Chinese yew Taxus yunnanensis.TETRAHEDRON,59(1),37-45.
MLA Li, SH,et al."Novel taxoids from the Chinese yew Taxus yunnanensis".TETRAHEDRON 59.1(2003):37-45.
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