Synthesis of Pentasaccharide and Heptasaccharide Derivatives and Their Effects on Plant Growth

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• 作者：Hongmei Liu ; Shuihong Cheng ; Jun Liu ; Yuguang Du ; Zhihui Bai ; Yuguo Du
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2008
• 出版时间：July 23, 2008
• 年：2008
• 卷：56
• 期：14
• 页码：5634 - 5638
• 全文大小：2005K
• 年卷期：v.56,no.14(July 23, 2008)
• ISSN：1520-5118

文摘

Two oligosaccharide derivatives, β-D-Glcp-(1−6)-β-D-Glcp-(1−6)-β-D-Glcp-(1−6)-β-D-Glcp-(1−4)-α-D-ManpOMe (1) and β-D-Glcp-(1−6)-β-D-Glcp-(1−6)-β-D-Glcp-(1−6) -β-D-Glcp-(1−6)-β-D-Glcp-(1−6)-β-D-Glcp-(1−4)-α-D-ManpOMe (2), have been synthesized efficiently using a convergent glycosylation strategy of 2 + 3 and 2 + 5. 1,6-Anhydro-β-D-glucopyranose, which was prepared from cotton pyrolysis, was applied as a key synthon in the synthesis, significantly simplifying the preparation. The bioassay suggested that these two oligosaccharides can both stimulate the growth of maize cultured in liquid medium at a concentration of 3 ppm.