70 ガガイモ科植物成分の研究 : 光学異性の一対の糖(D-cymarose及びL-cymarose)を構成糖とするCynanchum wilfordi並びにC. africanumの配糖体について

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概要

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• Six glycosides were isolated from Cynanchum wilfordi Hemsley (Asclepiadaceae) and their structures were deduced on the basis of spectral and chemical evidence. It is unusual that four of the glycosides include both D-and L-cymaroses in each sugar chain. L-Diginose is a constituent of their sugar chains, and the ^<13>C-NMR chemical shifts of methyl α- and β-glycosides were assigned by the selective proton decoupling (SEL) experiments. Two glycosides were isolated from C. africanum R. Br. and also contain both D- and L-cymaroses. They have the same aglycone, in which two ester groups are located at C-11 and C-12. Each linked position of the esters was deduced by the long-range selective proton decoupling (LSPD) experiments as shown in Chart 3.

• 天然有機化合物討論会の論文
• 1985-09-07

著者

• 三橋 博

  Research Institute For Biology & Chemistry Tsumura & Co.

• 三橋 博

  Tsumura Institute For Biology And Chemistry

• 林 紘司

  Tsumura Central Research Laboratories Tsumura & Co.

• 三橋 博

  北海道大学薬学部

• 金子 光

  Faculty of Pharmaceutical Sciences, Hokkaido University

• 金子 光

  北大・薬

• 三橋 博

  北大・薬

• 塚本 佐知子

  Faculty of Pharmaceutical Sciences, Hokkaido University

• SNYCKERS FRIEDRICH

  Noristan Ltd.,

• 塚本 佐知子

  北大・薬

• 林 紘司

  北大・薬

• Snykers F.

  Noristan Ltd.

• Fourie T.

  Noristan Ltd.

• Fourie T

  Noristan Ltd. Pretoria

• 金子 光

  Faculty Of Pharmaceutical Sciences Hokkaido University

• 塚本 佐知子

  Faculty Of Pharmaceutical Sciences Hokkaido University

• Snyckers Friedrich

  Noristan Ltd.

• 金子 光

  北海道大学 薬

• 林 紘司

  北海道大学薬学部

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