4.8 Article

Cytosporolides A-C, Antimicrobial Meroterpenoids with a Unique Peroxylactone Skeleton from Cytospora sp.

Journal

ORGANIC LETTERS
Volume 12, Issue 14, Pages 3144-3147

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol101062f

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Funding

  1. National Natural Science Foundation of China [30925039]
  2. Ministry of Science and Technolgy of China [2009CB522302, 2008ZX09401-05, 2009ZX09302-004]

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Cytosporolides A-C (1-3), three caryophyllene-derived meroterpenoids with a unique peroxylactone skeleton, were isolated from cultures of the fungus Cytospora sp. Their structures were elucidated by NMR spectroscopy, and the absolute configuration of the 5,6-diol moiety in 1 was assigned using Snatzke's method. Compounds 1-3 showed significant antimicrobial activity against the Gram-positive bacteria Staphylococcus aureus and Streptococcus pneumoniae.

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