详细信息
文献类型:期刊文献
中文题名:黄酮糖苷Parkinsonin B的全合成
英文题名:Total Synthesis of Glycosylflavone Parkinsonin B
作者:王朝霞[1];任志华[1];闫静[1];徐信[1];施小新[1];陈国荣[1]
机构:[1]华东理工大学结构可控先进功能材料及其制备教育部重点实验室精细化工研究所,上海200237
年份:2006
卷号:26
期号:9
起止页码:1254
中文期刊名:有机化学
外文期刊名:Chinese Journal of Organic Chemistry
收录:CSTPCD;;Scopus;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;
基金:国家自然科学基金(No.20576034);上海市科学技术委员会(No.044307011)资助项目.
语种:中文
中文关键词:2-羟基-4,6-二甲氧基苯乙酮;O-(2,3,4,6-四-O-苄基-α—D-葡萄糖基)三氯乙酰亚胺酯;糖基化;黄酮碳苷;合成
外文关键词:2-hydroxy-4,6-bis-methoxyacetophenone; O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl) tri-chloroacetimidate; glycosylation; C-glycosylflavone; synthesis
摘要:天然黄酮碳糖苷化合物特有的稳定性和显著的生物活性,使其化学合成成为当今糖化学领域的研究热点之一.本工作立体专一性地全合成了天然黄酮碳苷ParkinsoninB.通过控制物质的量比,首先高选择性合成了2-羟基-4,6-二甲氧基苯乙酮(3),并与糖给体O-(2,3,4,6-四-O-苄基-α-D-葡萄糖基)三氯乙酰亚胺酯(7)发生立体专一性糖基化反应得到碳糖苷化合物8,化合物8经查耳酮路线进而合成黄酮碳苷ParkinsoninB(1).经IR,MS,1HNMR及元素分析证实了产物及中间体的结构,同时讨论了全合成反应的主要影响因素,并对其1HNMR解析进行了探讨.
Owing to their special stability and prominent biological activity, C-glycosylflavones and their chemical synthesis have recently attracted considerable attention in the field of glycoscience. A total synthesis of glycosylflavone parkinsonin B with specific stereoselectivity is reported herein. 2-Hydroxy-4,6-bismethoxy acetophenone (3) was synthesized by one step in high regioselectivity under the optimal condition. The compound 3 was then glycosylated with O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl) trichloroacetimidate (7) as active glycosyl donor with specific stereoselectivity to produce compound 8. Parkinsonin B (1) was synthesized by the chalcone route from compound 8. The structures of target compound 1 and intermediates were confirmed by IR, MS, ^1H NMR spectra and element analysis.
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