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J Nat Prod. 1991 May-Jun;54(3):785-95.

Biologically active metabolites from Xenorhabdus spp., Part 2. Benzopyran-1-one derivatives with gastroprotective activity.

Author information

1
Biotech Australia Pty, Ltd., Roseville, NSW, Australia.

Abstract

Two novel antibiotic compounds, named xenocoumacins 1 [2] and 2 [3], with potent antiulcer activity were isolated from cultures of Xenorhabdus spp. Both compounds exhibit antibacterial activity and potent antiulcer activity against stress-induced ulcers when dosed orally. In addition, 2 has antifungal activity. Their chemical structures were determined by extensive 1H-nmr, 13C-nmr, and mass spectral studies to be 3,4-dihydro-8-hydroxy-1H-2-benzopyran-1-one derivatives.

PMID:
1955881
DOI:
10.1021/np50075a006
[Indexed for MEDLINE]

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