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学科主题: 天然产物有机化学
题名: Isolation and characterization of related impurities in 24-epibrassinolide
其他题名: Isolation and characterization of related impurities in 24-epibrassinolide
作者: CHEN HONGLI ; FENG HUIJIN ; LI YUANCHAO ; Jiang B(姜标)
通讯作者: LI YUANCHAO ; 姜标
刊名: Tetrahedron
发表日期: 2009
卷: 65, 期:10, 页:2097-2101
收录类别: SCI
部门归属: 上海药物所; 上海有机所
英文摘要: Two extra hydroxylated analogs of 24-epibrassinolide (2),17-hydroxy-24-epibrassinolide (4), 25-hydroxy 24-epibrassinolide (5), and two oxo-analogs of 24-epibrassinolide 22-oxo-23S-24-epibrassinolide (6), 22R-23-oxo-24-epibrassinolide (7) as impurities were isolated and identified from the initial material [purity: 2 and its 22S, 23S-isomer (3) :-95%] by using various chromatographic methods and repeated crystallization. Among them, compound 4 and compound 6 were first reported. Their structures were established by spectrometric analysis and X-ray crystallography study. Formation of mixed crystals of 6 and 7 in the crystallization process was postulated and further confirmed. (C) 2009 Elsevier Ltd. All rights reserved.
语种: 英语
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WOS记录号: WOS:000263945800023
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/20275
Appears in Collections:中科院天然产物有机化学重点实验室_期刊论文

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Recommended Citation:
CHEN HONGLI,FENG HUIJIN,LI YUANCHAO,et al. Isolation and characterization of related impurities in 24-epibrassinolide[J]. Tetrahedron,2009,65(10):2097-2101.
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