The Crystal and Molecular Structure of Miyaconitine Hydrobromide Dihydrate
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概要
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The structure of an <I>Aconitum</I> alkaloid, miyaconitine, C<SUB>23</SUB>H<SUB>29</SUB>O<SUB>6</SUB>N, has been determined by the X-ray analysis of crystals of the hydrobromide dihydrate, which are monoclinic with four formula units in a unit cell of the dimensions; <I>a</I>=10.41, <I>b</I>=13.85, <I>c</I>=9.63 Å and β=113.8°; space group, <I>P</I>2<SUB>1</SUB> The structure was solved by the heavy-atom method and was refined by the least-squares method. The final <I>R</I> index was 0.151. The absolute configuration was determined using the anomalous dispersion effect of the bromine atom. It was thus established that miyaconitine is a novel type of <I>Aconitum</I> alkaloid.
- 公益社団法人 日本化学会の論文
著者
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Sasada Yoshio
Laboratory of Chemistry for Natural Products, Faculty of Science, Tokyo Institute of Technology
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Shimanouchi Hirotaka
Laboratory of Chemistry for Natural Products, Tokyo Institute of Technology
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Takeda Tatsumichi
Laboratory of Chemistry for Natural Products, Tokyo Institute of Technology
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