Azaphilones with endothelin receptor binding activity produced by Penicillium sclerotiorum: taxonomy, fermentation, isolation, structure elucidation and biological activity

書誌事項

タイトル別名
  • Azapbilones with Endothelin Receptor Binding Activity Produced by Penicillium sclerotiorum: Taxonomy, Fermentation, Isolation, Structure Elucidation and Biological Activity.
公開日
1995
資源種別
journal article
DOI
  • 10.7164/antibiotics.48.913
公開者
公益財団法人 日本感染症医薬品協会

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説明

A series of azaphilones produced by Penicillium sclerotiorum (Xenova culture collection number XI1853) active in assays for the detection of antagonists of the endothelin-A (ETA) and endothelin-B (ETB) receptors has been identified. The series includes two novel sclerotiorin analogues, (8S, 8a-R)-7-deacetyl-1, O8, 8, 8a-tetrahydro-7-epi-sclerotiorin, 1, and its 5-dechloro analogue, 2. It also includes 5-chloroisorotiorin, 6, previously unreported as a natural product, in addition to the major product of these fermentations, (+)-sclerotiorin, 5. Data for the inhibition of endothelin-1 (ET-1) and endothelin-3 (ET-3) binding in the ETA and ETB receptor assays respectively are reported for this series. Compounds 1 and 2 were more selective for the rabbit ETA receptor than for the rat ETB receptor. The IC50 values for 1 and 2 were 9 and 28 μM respectively in an assay based on binding of ET-1 to rabbit ETA receptors. In an assay based on the binding of ET-3 to the rat ETB receptor compounds 1 and 2 exhibited IC50's of 77 and 172 μM. Members of this series of compounds demonstrated antagonist behavior in a secondary assay based on blockade of ET-1 stimulated arachidonic acid release from rabbit renal artery smooth muscle cells, when present at concentrations of ≥30μM.

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詳細情報 詳細情報について

  • CRID
    1390282679128668416
  • NII論文ID
    130003410166
  • DOI
    10.7164/antibiotics.48.913
  • COI
    1:CAS:528:DyaK2MXotlKmt70%3D
  • ISSN
    18811469
    00218820
    https://id.crossref.org/issn/00218820
    http://id.crossref.org/issn/00218820
  • PubMed
    7592055
  • 本文言語コード
    en
  • 資料種別
    journal article
  • データソース種別
    • JaLC
    • Crossref
    • PubMed
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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