Pyridone Alkaloids from a Marine-Derived Fungus, Stagonosporopsis cucurbitacearum, and Their Activities against Azole-Resistant Candida albicans

Journal of Natural Products
2013.0

Abstract

Four new 4-hydroxy-2-pyridone alkaloids, didymellamides A-D (1-4), were isolated from the marine-derived fungus Stagonosporopsis cucurbitacearum. The structures of 1-4 were elucidated from spectroscopic data (NMR, MS, and IR), and the absolute configuration of 1 was determined by X-ray diffraction analysis. Didymellamide A (1) exhibited antifungal activity against azole-resistant Candida albicans.

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