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A new Erythrina alkaloid from Erythrina herbacea

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Abstract

A new Erythrina alkaloid, 10-hydroxy-11-oxoerysotrine (1), has been isolated from the flowers of Erythrina herbacea together with five known compounds: erytharbine (2), 10,11-dioxoerysotrine (3), erythrartine (4), erysotramidine (5) and erysotrine-N-oxide (6). The structure of the new compound was elucidated on the basis of its spectral data, including 2-D NMR and mass (MS) spectra. The new compound is a rare C-10 oxygenated Erythrina alkaloid. The antioxidant activities of the isolated compounds 1–6 were evaluated by scavenging with peroxynitrite.

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Authors and Affiliations

  1. Faculty of Pharmacy, Meijo University, Yagoto, Tempaku-ku, Nagoya, 468-8503, Japan

    Hitoshi Tanaka & Hisanori Hattori

  2. Gifu Pharmaceutical University, Mitahora-higashi, Gifu, 502-8585, Japan

    Toshihiro Tanaka & Eiji Sakai

  3. The Kochi Prefectural Makino Botanical Garden, Godaisan, Kochi, 781-8125, Japan

    Nobuyuki Tanaka

  4. Faculty of Agriculture, Shizuoka University, Shizuoka, 422-8529, Japan

    Aditya Kulkarni & Hideo Etoh

Authors
  1. Hitoshi Tanaka
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  2. Hisanori Hattori
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  3. Toshihiro Tanaka
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  4. Eiji Sakai
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  5. Nobuyuki Tanaka
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  6. Aditya Kulkarni
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  7. Hideo Etoh
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Correspondence to Hitoshi Tanaka.

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Tanaka, H., Hattori, H., Tanaka, T. et al. A new Erythrina alkaloid from Erythrina herbacea . J Nat Med 62, 228–231 (2008). https://doi.org/10.1007/s11418-007-0222-z

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  • DOI: https://doi.org/10.1007/s11418-007-0222-z

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