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Bioactive Secondary Metabolites From Some Fungal spp.

机译:一些真菌属物种的生物活性次生代谢产物。

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摘要

In the course of our search for bioactive metabolites from terrestrial fungi, the antimicrobial and chemical screening of 20 fungal strains were studied at different cultural periods. The GC-MS analysis of the most interesting fungal extracts; Fusarium equiseti, Penicillium brevicompactum, and Geotrichum candidum revealed the presence of twenty one, nineteen and twenty seven compounds, respectively, containing divers halogenated, nitrogenous, oxygenated and sulphur compounds. A large-scale fermentation of Penicillium brevicompactum afforded the two juvenile hormone biosynthesis inhibitors; 2-(5-heptenyl)-6,7,8,8 a-tetrahydro-3-methyl- 4H-pyrrolo [2,1-b] oxazin-4-one (1), brevioxime (2) along with (3R,4R) 3,4,6,8- tetrahydroxy-3-methyl-dihydroisocoumarin (3). The Structures of the isolated compounds were assigned by intensive studies of NMR and MS spectra.
机译:在我们寻找陆生真菌生物活性代谢产物的过程中,研究了在不同文化时期对20种真菌菌株的抗菌和化学筛选。最有趣的真菌提取物的GC-MS分析;枯萎病镰刀菌,短青霉菌和白色念珠菌显示分别存在二十一种,十九种和二十七种化合物,分别含有卤代,含氮,含氧和硫的化合物。短小青霉的大规模发酵提供了两种少年激素生物合成抑制剂。 2-(5-庚烯基)-6,7,8,8 a-四氢-3-甲基-4H-吡咯并[2,1-b]恶嗪-4-酮(1),溴肟(2)和(3R ,4R)3,4,6,8-四羟基-3-甲基-二氢异香豆素(3)。通过深入研究NMR和MS光谱确定分离出的化合物的结构。

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