Cytotoxic Dimeric Epipolythiodiketopiperazines from the Ascomycetous Fungus Preussia typharum
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Cytotoxic Dimeric Epipolythiodiketopiperazines from the Ascomycetous Fungus Preussia typharum
Two new dimeric epipolythiodiketopiperazines, preussiadins A (1) and B (2), together with two known diastereomers, leptosins C (6) and A (7), were obtained from the mycelia of a Preussia typharum isolate. The structures of the new compounds were established by spectroscopic methods, and the absolute configurations of 1 and 2 were assigned by chemical transformations and comparisons of quantum c...
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ژورنال
عنوان ژورنال: Journal of Natural Products
سال: 2014
ISSN: 0163-3864,1520-6025
DOI: 10.1021/np5002253