Format:
Online-Ressource
ISSN:
1522-2675
Content:
Abstract: Four depsides, all of them new as natural products, were isolated from Cladosporium uredinicola solid‐media culture and identified as 3‐hydroxy‐2,5‐dimethylphenyl 2,4‐dihydroxy‐3,6‐dimethylbenzoate (1), 3‐hydroxy‐2,4,5‐trimethylphenyl 2,4‐dihydroxy‐3,6‐dimethylbenzoate (2), 3‐hydroxy‐2,5‐dimethylphenyl 3‐[(2,4‐dihydroxy‐3,6‐dimethylbenzoyl) oxy]‐6‐hydroxy‐2,4‐dimethylbenzoate (3), and 3‐hydroxy‐2,4,5‐trimethylphenyl 3‐[(2,4‐dihydroxy‐3,6‐dimethylbenzoyl) oxy]‐6‐hydroxy‐2,4‐dimethylbenzoate (4). The endophytic fungus was isolated from Psidium guajava fruits and cultivated over sterilized rice. The compounds 1–4 were purified by classical chromatographic procedures, and the chemical structures were identified by spectroscopic studies, mainly 1D‐ and 2D‐NMR and LC/ESI‐MS/MS. Three of the isolated depsides exhibited moderate bacteriostatic and/or bactericide effects on Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Bacillus subtillis.
In:
volume:94
In:
number:6
In:
year:2011
In:
pages:1077-1084
In:
extent:8
In:
Helvetica chimica acta, New York, NY : Wiley-VCH, 1918-, 94, Heft 6 (2011), 1077-1084 (gesamt 8), 1522-2675
Language:
English
DOI:
10.1002/hlca.201000387
URN:
urn:nbn:de:101:1-2023032112172805631733
URL:
https://doi.org/10.1002/hlca.201000387
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2023032112172805631733
URL:
https://d-nb.info/128398492X/34
URL:
https://doi.org/10.1002/hlca.201000387
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