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首页> 外文期刊>The Journal of Antibiotics: An International Journal >Epi-trichosetin, a new undecaprenyl pyrophosphate synthase inhibitor, produced by Fusarium oxysporum FKI-4553
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Epi-trichosetin, a new undecaprenyl pyrophosphate synthase inhibitor, produced by Fusarium oxysporum FKI-4553

机译:Epi-trichosetin,一种新的十一碳烯基焦磷酸合酶抑制剂,由尖孢镰刀菌FKI-4553生产

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摘要

A new compound, designated epi-trichosetin (1), was isolated along with the known compound trichosetin (2) from the culture broth of Fusarium oxysporum FKI-4553 by solvent extraction, silica gel column chromatography and reversed-phase HPLC. The structure of 1 was elucidated by comparing various spectral data with those of 2, revealing that 1 was a stereoisomer of 2. Compounds 1 and 2 inhibited the undecaprenyl pyrophosphate synthase activity of Staphylococcus aureus with IC 50 values of 83 and 30 μM, respectively, and showed antimicrobial activity, particularly against Gram-positive bacteria, including methicillin-sensitive and -resistant S. aureus.
机译:通过溶剂萃取,硅胶柱色谱和反相HPLC从尖孢镰刀菌FKI-4553的培养液中分离出一种新的化合物,称为表三曲汀(1)和已知的化合物曲霉毒素(2)。通过比较各种光谱数据与2的光谱数据阐明了1的结构,发现1是2的立体异构体。化合物1和2抑制金黄色葡萄球菌的十一碳烯基焦磷酸合酶活性,IC 50值分别为83和30μM。并显示出抗菌活性,特别是对革兰氏阳性细菌,包括对甲氧西林敏感和耐药的金黄色葡萄球菌。

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