Journal of Organic Chemistry p. 4355 - 4360 (1991)
Update date:2022-08-03
Topics:
Weber, Holly A.
Gloer, James B.
Preussomerins A-F (1-6), a series of new aromatic bis-ketals with antifungal and antibacterial activities, have been isolated from the coprophilous fungus Preussia isomera (CBS 415.82).Preussomerins A-F were obtained from ethyl acetate extracts of liquid cultures of P. isomera by silica gel chromatography and reversed-phase HPLC.The structures of preussomerins B-F (2-6) were proposed on the basis of extensive NMR experiments and by comparison with the data for preussomerin A (1), whose structure was confirmed by single-crystal X-ray diffraction analysis.The isolation process was guided by in vitro bioassays for antifungal antagonism toward other coprophilous fungi.
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