| A New and Practical Procedure for the Preparation of the Glucohexatose Phytoalexin Elicitor |
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| 作者姓名： | 王海荣 李兆陇 宁君 孔繁祚 |
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| 作者单位： | [1]DepartmentofChemistry,TsinghuaUniversity,Beijing100084,China [2]ResearchCenterforEco-EnvironmentalSciences,ChineseAcademyofSciences,Beijing100085,China |
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| 基金项目： | Project supported by the Beijing Natural Science Foundation(No.6021004)and the Ministry of Science and Technology(No.2001AA246014). |
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| 摘 要： | The phytoalexin elicitor β-(1→3)-branched β-( 1→6)-linked glucohexatose has been regio- and stereospecifically synthesized by coupling of the 3, 6-branched gluco-trisaccharide Schmidt reagent 10 with a mixture of multiol 3,6-branched gluco-trisaccharides 13 which consists of free 5,6‘-OH trisaccharide, free 5,2‘ ,6‘-OH trisaccharide, free 5,3‘ ,6‘-OH trisaccharide and so on. The compounds 10 and 13 were prepared from 1,2:5,6-di-O-isopropylidene-α-D-glucofuranose , 2, 3, 4, 6-tetra-O-ben-zoyi-a-D-glucopyranosyl trichioroacetimldate, and 2,3,4, 6-tetra-O-acetyl-α-D-glucopyranosyl trichloreacetimidate through regio- and stereoselective manners.
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| 关 键 词： | 制备 植物抗生素 葡糖六元有机化合物 立体合成 低聚糖 生理活性 |
A New and Practical Procedure for the Preparation of the Glucohex-atose Phytoalexin Elicitor |
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| WANG,Hai-Rong LI,Zhao-Long NING,Jun
KONG,Fan-Zuo.A New and Practical Procedure for the Preparation of the Glucohexatose Phytoalexin Elicitor[J].Chinese Journal of Chemistry,2003,21(7):944-949. |
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| Authors: | WANG Hai-Rong LI Zhao-Long NING Jun
KONG Fan-Zuo |
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| Institution: | WANG,Hai-Rong LI,Zhao-Long NING,Jun
KONG,Fan-Zuo
Department of Chemistry,Tsinghua University,Beijing 100084,China
Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China |
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| Abstract: | The phytoalexin elicitor β‐(1→3)‐branched β‐(1→6)‐linked glucohexatose has been regio‐and stereospecifically synthesized by coupling of the 3, 6‐branched gluco‐trisaccharide Schmidt reagent 10 with a mixture of multiol) 3, 6‐branched gluco‐trisaccharides 13 which consists of free 5, 6′‐OH trisaccharide, free 5,2′, 6′‐OH trisaccharide, free 5,3′,6′‐OH trisaccharide and so on. The compounds 10 and 13 were prepared from 1,2:5,6‐di‐O‐isopropylidene‐α‐D‐glucofuranose, 2, 3, 4, 6‐tetra‐O‐ben‐zoyl‐α‐D‐glucopyranosyl trichloroacetimidate, and 2, 3, 4, 6‐tetra‐O‐acetyl‐α‐D‐glucopyranosyl trichloroacetimidate through regio‐and stereoselective manners. |
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| Keywords: | oligosaccharide phytoalexin-elicitor regio- and stereoselective synthesis |
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