期刊
TETRAHEDRON LETTERS
卷 60, 期 25, 页码 1649-1652出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2019.05.037
关键词
Fungi; Unexplored; Ascomycetes; Metabolites
资金
- CONACyT [CB 236564, INFRA 252226, 274048]
- UNAM-DGAPA [IA205017]
- FQ-PAIP [5000-9145]
- National Cancer Institute/National Institutes of Health, Bethesda, MD, USA [P01 CA125066]
- Posgrado en Ciencias Quimicas
- Programa de Movilidad Internacional, UNAM
During our ongoing research on fungal strains from unexplored sources, the reinvestigation of the CHCl3-MeOH extract of the marine-facultative Aspergillus sp. MEXU 27854 yielded a new N-methyl cyclic pentapeptide (1) along with known butyrolactone II and PF1233 A. In addition, from the marine-facultative Gymnoascus hyalinosporus MEXU 29901, a new alternariol glucoside, 10-O-[beta-D-(4-methoxyl-glucopyranosyl)]-4-O-methylalternariol (2) and known alternariol 4-O-methyl ether, alternariol and beauvericin, were isolated. The structures of 1 and 2 were established by detailed spectroscopic data, and their absolute configuration was ascertained by Marfey's analysis and HRESIMS-MS/MS data for 1, and by chemical degradation and optical rotation analysis for 2. (C) 2019 Elsevier Ltd. All rights reserved.
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