Synthesis of stachyose tetradecaacetate and an isomer.

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概要

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• Condensation of 1′,2,2″,3,3′,3″,4,4′,4″,6′-deca-<I>O</I>-acetylraffinose (<B>1</B>) with 2,3,4,6-tetra-<I>O</I>-benzyl-D-galactopyranosyl chloride in the presence of tetraethylammonium chloride, followed by deacetylation, debenzylation and subsequent acetylation afforded stachyose tetradecaacetate. An isomer in which a terminal D-galctopyranosyl group is attached to the 6″-<I>O</I> of raffinose in β-anomeric linkage, was prepared by condensing <B>1</B> with 2,3,4,6-tetra-<I>O</I>-acetyl-α-D-galactopyranosyl bromide in the presence of mercury(II) cyanide. <SUP>13</SUP>C NMR spectra of stachyose tetradecaacetate and the isomer were discussed.

• 公益社団法人 日本化学会の論文

著者

• Nishiyama Shigeru

  Department Of Chemistry Faculty Of Science And Technology Keio Univerisity

• NAKAMURA Katsumi

  Department of Agricultural Chemistry, The University of Tokyo:(Present office)Department of Biological and Chemical Engineering, Gunma University

• Suami Tetsuo

  Department of Applied Chemistry Faculty of Engineering Keio University

• Otake Toshiki

  Department of Applied Chemistry, Faculty of Engineering, Keio University

• Adachi Ryoichi

  Department of Applied Chemistry, Faculty of Engineering, Keio University

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