Crystal and Molecular Structure of ω-Amino Acids, ω-Aminosulfonic Acids and Their Derivatives. VI. The Crystal and Molecular Structure of DL-γ-Amino-β-hydroxybiityric Acid (GABOB), A Nervous Inhibitory Chemical Transmitter

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概要

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• DL-γ-Amino-β-hydroxybutyric acid (GABOB), C<SUB>4</SUB>H<SUB>9</SUB>O<SUB>3</SUB>N, forms monoclinic plate crystals of space group P2<SUB>1</SUB>/c, with <I>a</I>=7.43, <I>b</I>=8.29, <I>c</I>=9.34 Å, β=110.9°, and four molecules in the unit cell. Intensity data were collected by a film method. The structure was solved by the direct method with the symbolic addition procedure, and refined by least-squares methods to <I>R</I>=0.096. GABOB molecule having the zwitterionic structure, NH<SUB>3</SUB><SUP>+</SUP>–CH<SUB>2</SUB>–CH(OH)–CH<SUB>2</SUB>–COO^-, forms <I>trans-zigzag</I> skeletal conformation with an intramolecular OH···O hydrogen bond of 2.773 Å, and contacts with each other by three dimensional network of NH···O and OH···O hydrogen bonds.

• 公益社団法人 日本化学会の論文

著者

• Fujiwara Takaji

  Faculty Of Pharmaceutical Sciences Of Osaka University

• TOMITA Ken-ichi

  Faculty of Pharmaceutical Sciences of Osaka University

• Harada Masahiro

  Faculty of Pharmaceutical Sciences, Osaka University

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