Affiliation:
1. 1H. E. J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Karachi-75270, Pakistan
Abstract
A new metabolite, 6-(4’-hydroxy-2’-methyl phenoxy)-(-)-(3R)-mellein (1) was isolated from the ethyl acetate extract of Aspergillus terreus culture medium along with three known isocoumarin derivatives, (-)-(3R)-6-methoxymellein (2), (-)-(3R)-6,7-dimethoxymellein (Kigelin) (3) and (3R, 4R)-6,7-dimethoxy-4-hydroxymellein (4). Metabolites 1 and 4 showed significant activity against human pathogenic dermatophytes, Microsporum canis and Trichophyton longifusus. Metabolite 1 also exhibited potent antioxidant activity. The structures of metabolites were characterized on the basis of spectroscopic techniques. 13C NMR data of metabolites 2 - 4 are also being reported for the first time
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33 articles.
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