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题名: Polyhydroxylated steroidal constituents from the fresh rhizomes of Tupistra yunnanensis
作者: Yang, QX; null(张颖君); Li, HZ; Yang, CR
刊名: STEROIDS
关键词: Tupistra yunnanensis ; Liliaceae ; steroidal saponins ; tupistrosides A-F ; NMR spectroscopy ; acid hydrolysis
英文摘要: Six new polyhydroxylated steroidal saponins, tupistrosides A-F (1-6), together with nine known steroids, were isolated from the fresh rhizomes of Tupistra yunnanensis. Their structures were elucidated to be (25S)-1 beta,4 beta,5 beta-trihydroxy-spirostane-3 beta-yl-O-alpha-L-arabinopyranoside (1), 1 beta,24 beta-dihydroxy-spirost-5,25(27)-dien-3 alpha-yl-O-beta-D-glucopyranoside (2), (22S,25S)- 1 alpha,2 beta,3 alpha,5 alpha-tetrahydroxy-furo-spirostane-26-yl-O-beta-D-glucopyranoside (3), 1 beta,3 alpha,22 xi-trihydroxy-furost-5,25(27)-dien-26-yl O-beta-D-glucopyranoside (4), 26-O-beta-D-glucopyranosyl-1 beta,22-dihydroxy-furost-5-en-3 alpha-yl O-beta-D-glucopyranoside (5) and 22-methoxy-1 beta,2 beta,3 beta,4 beta,5 beta,7 alpha-hexahydroxy-furost-25(27)-en-6-one-26-yl O-beta-D-glucopyranoside (6), respectively, by means of spectroscopic analysis and the results of acid hydrolysis. (c) 2005 Elsevier Inc. All rights reserved.
出版日期: 2005-09-01
卷号: 70, 期号:10, 页码:732-737
DOI标识: 10.1016/j.steroids.2005.04.003
语种: 英语
收录类别: SCI ; IC
学科分类: Biochemistry & Molecular Biology; Endocrinology & Metabolism
ISSN号: 0039-128X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/4672
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, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources W China, Kunming 650204, Peoples R China

Recommended Citation:
Yang, QX; Zhang, YJ; Li, HZ; Yang, CR.Polyhydroxylated steroidal constituents from the fresh rhizomes of Tupistra yunnanensis,STEROIDS,2005,70(10):732-737
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