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Diphenyl ethers and depsidones from the endophytic fungus Aspergillus unguis BCC54176

Tetrahedron, ISSN: 0040-4020, Vol: 105, Page: 132612
2022
  • 15
    Citations
  • 0
    Usage
  • 7
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    15
    • Citation Indexes
      15
  • Captures
    7
  • Mentions
    1
    • News Mentions
      1
      • News
        1

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Article Description

Four new diphenyl ethers, aspergillusethers G−J ( 1 – 4 ), and one new depsidone, emeguisin D ( 7 ), together with eighteen known compounds have been isolated and characterized from the endophytic fungus Aspergillus unguis BCC54176. The chemical structures were established based on spectroscopic evidence in conjunction with a chemical transformation. Furthermore, the chemical structure of compound 7 was verified by single-crystal X-ray diffraction data. The isolated compounds were evaluated for biological activity. Compound 7, emeguisin C ( 10 ), and nidulin ( 14 ) showed antibacterial activity against Bacillus cereus with an equal MIC value of 1.56 μg/mL, while emeguisin A ( 8 ), nornidulin ( 13 ), 2-chlorounguinol ( 16 ), and aspergillusidone C ( 21 ) displayed anti-phytopathogenic activity against Colletotrichum acutatum with the equal MIC value of 3.13 μg/mL. Compound 7 was also active against Staphylococcus aureus with an MIC value of 1.56 μg/mL. However, none of the tested compounds had cytotoxicity against cancerous (MCF-7 and NCI–H187) and non-cancerous (Vero) cells.

Bibliographic Details

Karoon Sadorn; Siriporn Saepua; Nantiya Bunbamrung; Nattawut Boonyuen; Somjit Komwijit; Pranee Rachtawee; Pattama Pittayakhajonwut

Elsevier BV

Biochemistry, Genetics and Molecular Biology; Pharmacology, Toxicology and Pharmaceutics; Chemistry

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