首页> 外文期刊>The Journal of Antibiotics: An International Journal >Polyketide glycosides phialotides A to H, new potentiators of amphotericin B activity, produced by Pseudophialophora sp. BF-0158
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Polyketide glycosides phialotides A to H, new potentiators of amphotericin B activity, produced by Pseudophialophora sp. BF-0158

机译:聚酮糖苷Phialotides A至H,通过假噬菌酚Sp产生的两性霉素B活性的新增强剂。 BF-0158.

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摘要

Eight new potentiators of antifungal amphotericin B (AmB) activity, phialotides A to H, were isolated from the fermentation broths of the rare fungus Pseudophialophora sp. BF-0158. The structures of phialotides were elucidated by spectroscopic analyses, including NMR and MS, and degradation studies. Phialotides were novel polyketide glycosides consisting of a 1,3-dimethylbut-1-ene (C-6-unit) repeating substructure and one to three hexopyranoses. None of the phialotides exhibited antifungal activity, whereas all potentiated AmB activity against several fungi. Phialotide F was the most effective potentiator of AmB activity against Candida albicans, with a decrease in the MIC from 0.50 to 0.016 mu g ml(-1) being observed in combination with phialotide F at 1.0 mu g ml(-1).
机译:从罕见的真菌假年潜水蛋白酶SP的发酵肉汤中分离出八种抗真菌霉素B(AMB)活性的抗真菌霉素B(AMB)活性剂。 BF-0158。 通过光谱分析,包括NMR和MS和降解研究,阐明了Phialotides的结构。 Phialotides是一种新的聚酮糖苷,由1,3-二甲基丁基-1-烯(C-6-单元)重复亚结构和一至三个六丙吡喃。 Phialotides没有表现出抗真菌活性,而所有具有对几种真菌的强化AMB活性。 Phialotide F是针对念珠菌蛋白酶的AMB活性的最有效的增强剂,MIC从0.50至0.016μgmml(-1)的下降,与1.0μgml(-1)的Phialotide f组合。

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    Tohoku Med &

    Pharmaceut Univ Dept Nat Prod Chem Fac Pharmaceut Sci Aoba Ku 4-4-1 Komatsushima;

    Tohoku Med &

    Pharmaceut Univ Dept Nat Prod Chem Fac Pharmaceut Sci Aoba Ku 4-4-1 Komatsushima;

    Kitasato Univ Grad Sch Pharmaceut Sci Microbial Chem &

    Med Res Labs Minato Ku 5-9-1 Shirokane;

    Kitasato Univ Grad Sch Pharmaceut Sci Microbial Chem &

    Med Res Labs Minato Ku 5-9-1 Shirokane;

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  • 正文语种 eng
  • 中图分类 药学;
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