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题名: Three new apo-tirucallols with six-membered hemiacetal from Meliaceae
作者: null(罗晓东); Wu, SH; Wu, DG; Ma, YB; Qi, SH
刊名: TETRAHEDRON
关键词: Azadirachta indica ; Dysoxylum hainanensis ; Meliaceae ; apo-tirucallols ; X-ray analysis
英文摘要: Three new apo-tirucallols, 1alpha,7alpha-diacetoxyl-17alpha-20S-21,24-epoxy-apotirucall-14-ene-3alpha,23R,24S,25-tetraol (1), 7alpha-acetoxyl-17alpha-20S-21,24-epoxy-apotirucall-14-ene-3a,23R,24S,25-tetraol (2), 7alpha-acetoxyl-17alpha-20S-21,24-epoxy-apotirucall-14-en-3-one-23R,24S,25-triol (3) were obtained from the plants of the family Meliaceae. Their configurations were elucidated on the basis of extensive 1D and 2D NMR techniques in CD3OD solution. The equilibrium of the six-membered ring hemiacetal at side chain is also discussed. Finally, the stereochemistry of compound 1 was demonstrated by X-ray crystallography. (C) 2002 Elsevier Science Ltd. All rights reserved.
出版日期: 2002-08-12
卷号: 58, 期号:33, 页码:6691-6695
语种: 英语
收录类别: IC ; SCI
学科分类: Chemistry, Organic
ISSN号: 0040-4020
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/4568
Appears in Collections:植物化学与西部植物资源持续利用国家重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Phytochem & Plant Resources W China, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China

Recommended Citation:
Luo, XD; Wu, SH; Wu, DG; Ma, YB; Qi, SH.Three new apo-tirucallols with six-membered hemiacetal from Meliaceae,TETRAHEDRON,2002,58(33):6691-6695
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