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Crystal and molecular structure of a new diterpenyl glycoside from Pteris cretica L.

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Abstract

The crystal and molecular structure of a new diterpenyl glycoside, Ptr-1, is presented. The crystal is triclinic, space group P1, with a = 8.2414(8) Å, b = 13.0826(9) Å, c = 6.1427(8) Å, α = 95.345(9)°, β = 111.589(8)°, γ = 96.726(7)°, V = 604.9(1) Å3, Z = 1. The structure was solved by direct methods and refined by full-matrix least-squares methods to a final R = 0.049 (Rw = 0.099) for 1872 independent reflections. The molecular structure is based on a glycopyranosyl group and a tetracyclic group. The glycopyranosyl group is β-D-allopyranosyl group. The tetracyclic group consists of 1 five-membered and 3 six-membered rings.

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Authors and Affiliations

  1. Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka, 573-0101, Japan

    Jun'ichi Katakawa & Tadahiro Tetsumi

  2. Department of Applied Chemistry, Osaka Institute of Technology, Omiya, Asahi-ku, Osaka, Japan

    Tadamasa Terai & Masaaki Katai

  3. Institute for Protein Research, Osaka University, Yamadaoka, Suita, Osaka, Japan

    Ken-ichi Sakaguchi & Masami Kusunoki

  4. Graduate School of Integrated Science, Yokohama City University, Suehiro-cho, Tsurumi-ku, Yokohama, Japan

    Mamoru Sato

Authors
  1. Jun'ichi Katakawa
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  2. Tadahiro Tetsumi
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  3. Tadamasa Terai
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  4. Masaaki Katai
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  5. Ken-ichi Sakaguchi
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  6. Masami Kusunoki
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  7. Mamoru Sato
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Katakawa, J., Tetsumi, T., Terai, T. et al. Crystal and molecular structure of a new diterpenyl glycoside from Pteris cretica L.. Journal of Chemical Crystallography 32, 39–42 (2002). https://doi.org/10.1023/A:1015644322742

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  • DOI: https://doi.org/10.1023/A:1015644322742

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