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Chinoketides A and B, Two New Antimicrobial Polyketides from the Endophytes of Distylium chinense with the “Black-Box” Co-culture Method
Natural Product Sciences ; : 159-163, 2018.
Article in En | WPRIM | ID: wpr-741623
Responsible library: WPRO
ABSTRACT
Two new polyketides, chinoketides A and B (1 – 2) with a known compound xylarphthalide A (3), were isolated from the solid medium of the endophytes from the leaves of the relic plant Distylium chinense with the “black-box” co-culture method, and the structures of two new compounds were elucidated by NMR, MS and CD spectra. And the absolute configurations of chinoketides A (1) and B (2) were determined as 2R,3R,8S and 5R,6S by calculating their ECD spectra to compare with the experimental CD spectra. Finally, the antimicrobial activities were evaluated to Erwinia carotovora sub sp. Carotovora (Jones) Bersey et al, and the results showed that compounds 1 – 3 displayed the antimicrobial activities with MIC value at 20.5, 30.4 and 10.2 µg/mL.
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Full text: 1 Index: WPRIM Main subject: Plants / Pectobacterium carotovorum / Coculture Techniques / Endophytes / Polyketides / Methods Language: En Journal: Natural Product Sciences Year: 2018 Type: Article
Full text: 1 Index: WPRIM Main subject: Plants / Pectobacterium carotovorum / Coculture Techniques / Endophytes / Polyketides / Methods Language: En Journal: Natural Product Sciences Year: 2018 Type: Article