Secondary metabolites from the dandelion-derived endophytic fungus Epicoccum sorghinum 1-2 / 药学学报
Acta Pharmaceutica Sinica
;
(12): 2115-2119, 2022.
Article
in Chinese
| WPRIM
| ID: wpr-936561
ABSTRACT
The secondary metabolites from the dandelion-derived Epicoccum sorghinum 1-2 were isolated by silica gel and Sephadex gel column chromatography, and semi-preparative high performance liquid chromatography (HPLC). Their structures were identified by comprehensive NMR and MS methods. Their antibacterial activities were determined by filter paper method. Finally, seven compounds were isolated and identified from the fermentation product of E. sorghinum 1-2, including (4R*,5R*,6S*)-4,5-dihydroxy-6-(6'-methylsalicyloxy)-2-methoxymethyl-2-cyclohexen-l-one (1), (4R*,5R*,6S*)-4,5-dihydroxy-6-(6′-methylsalicyloxy)-2-methyl-2-cyclohexen-1-one (2), (4R,5R,6S)-4,5-dihydroxy-6-(6'-methylsalicyloxy)-2-hydroxymethyl-2-cyclohexen-1-one (3), (-)-gabosine E (4), theobroxide (5), 3-chlorogentisyl alcohol (6), and 3-hydroxybenzyl alcohol (7), of which 1-5 are epoxydons, and 6 and 7 are phenolics. Compounds 1 and 2 are new structures reported for the first time. Compound 6 showed significant antibacterial activity against Staphylococcus aureus.
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WPRIM (Western Pacific)
Language:
Chinese
Journal:
Acta Pharmaceutica Sinica
Year:
2022
Type:
Article
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Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Acta Pharmaceutica Sinica
Year:
2022
Type:
Article