Studies of Active Substances in Herbs Used for Hair Treatment. IV. The Structure of the Hair Regrowth Substance, Polyporusterone A, from Polyporus umbellatus F.

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概要

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• The crystal structure of polyporusterone A, from Polyporus umbellatus F. was determined by X-ray diffraction analysis. The crystals are orthorhombic, space group P2_12_12_1,Z=4,unit-cell dimension a=17.968(2), b=26.201(5), c=6.227(1) Å. The structure, (+)-2β, 3β, 14α, (20R, 22R)-pentahydroxy-(24S)-methyl-5β-cholest-7-en-6-one, was solved from diffractometric data by direct methods and refined by least-squares calculations to R=0.053 (2345 observed independent significant reflections (I>3σ(I)). All the hydroxyl groups are involved in a hydrogen-bonding network. The NMR data indicate that the side-chain has the same conformation in both the crystalline state and solution.

• 公益社団法人日本薬学会の論文
• 1999-11-15

著者

• 辻 浩一

  Microbiological Research Institute Otsuka Pharmaceutical Co. Ltd.

• Tsuji Kiyoshi

  Medicinal Chemistry Research Laboratories Fujisawa Pharmaceutical Co. Ltd.

• ISHIDA HITOSHI

  School of Pharmaceutical Science, University of Shizuoka

• TSUJI KUNIRO

  School of Pharmaceutical Science, University of Shizuoka

• FUKUSHIMA Mitsuo

  Department of Health Informatics Center Foundation for Biomedical Research and Innovation

• Tsuji K

  School Of Pharmaceutical Science University Of Shizuoka

• 辻 京子

  Faculty Of Pharmaceutical Sciences Setsunan University

• Nozawa Akira

  Pharmaceutical R&d Laboratories Pola Chemical Industries Inc.

• Nozawa Akira

  Department Of Biological Sciences Graduate School Of Science University Of Tokyo

• Nozawa Akira

  Laboratories Pola Corporation

• INAOKA Yasunori

  Laboratories, Pola Corporation

• SHIBATANI Jun-ichi

  Laboratories, Pola Corporation

• FUKUSHIMA Makoto

  Laboratories, Pola Corporation

• Ishida Hitoshi

  Research Institute For Bioresources Okayama University:(present Office)plant Protection Station Moji

• Inaoka Y

  Laboratories Pola Corporation

• Shibatani Jun-ichi

  Laboratories Pola Corporation

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