Antifungal and Cytotoxic β-Resorcylic Acid Lactones from a Paecilomyces Species

Liangxiong Xu, Ping Wu, Jinghua Xue, Istvan Molnar, Xiaoyi Wei

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


Eight new β-resorcylic acid lactones (RALs), including the hypothemycin-type compounds paecilomycins N-P (1-3) and the radicicol-type metabolites dechloropochonin I (4), monocillins VI (5) and VII (6), 4′-hydroxymonocillin IV (7), and 4′-methoxymonocillin IV (8), along with nine known RALs (9-17), were isolated from the cultures of Paecilomyces sp. SC0924. Compounds 1 and 2 feature a novel 6/11/5 ring system, and 3 is the first 5′-keto RAL. The structures of 1-8 were elucidated on the basis of extensive spectroscopic analysis, X-ray diffraction analysis, and theoretical calculations of ECD spectra. Compounds 3, 5, and 6 exhibit cytotoxicity against MCF-7, A549, and HeLa cells, and compounds 5 and 7 display antifungal activity against Peronophythora litchii.

Original languageEnglish (US)
Pages (from-to)2215-2253
Number of pages39
JournalJournal Of Natural Products
Issue number8
StatePublished - Aug 25 2017

ASJC Scopus subject areas

  • Analytical Chemistry
  • Molecular Medicine
  • Pharmacology
  • Pharmaceutical Science
  • Drug Discovery
  • Complementary and alternative medicine
  • Organic Chemistry


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