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通过总合成和生物活性研究对Halisphingosine A的结构修订

Maria Sauer^1,2, Andreas M Kany^2,3, Sebastian Götze²

¹Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology, Hans-Knöll Institute (Leibniz-HKI), Beutenbergstraße 11a, 07745, Jena, Germany.

Angewandte Chemie (International ed. in English)

|October 24, 2024

概括

研究人员使用总合成和立体选择性的亨利反应修订了海洋素A的结构. 这项工作为药物发现提供了一个新的海洋形基衍生物库.

科学领域:

海洋天然产品化学化学
有机合成有机合成
脂质生物化学脂质生物化学

背景情况:

斯芬戈基是重要的生物活性脂质,构成斯芬戈脂质的骨干,对生理调节至关重要.
素A,一种来自海洋的形基,最初从海绵中分离出来,但它的结构需要澄清.
核磁共振 (NMR) 解释中的不一致性使得需要重新评估哈利斯芬戈辛A结构.

研究的目的:

进行总合成并修改哈利斯芬戈辛A的结构.
为了生成一个全面的halisphingosine A立体异构体的图书馆,用于结构-活性关系 (SAR) 研究.
提供对海洋形基衍生物的验证分析数据.

主要方法:

开发一种合成路径,具有晚期的酶选择性亨利反应.
一个包含32个完全特征的灵素A核的立体异构体库的合成.
利用先进的NMR技术进行结构阐明和确认.

主要成果:

哈利斯芬古素A的结构被最终修改为 (2R,3R,8R,Z) -2-aminooctadec-9-ene-1,3,8-triol.
一个新的海洋形基衍生物库被合成和特征化.
合成的化合物显示出抗微生物和细胞毒性活性的潜力,为SAR研究铺平了道路.

结论:

这项研究成功地纠正了哈利斯芬戈辛A的立体化学分配.
生成的化合物库和分析数据是海洋生态代谢学的宝贵资源.
这项研究有助于发现新的脂酶代谢抑制剂和脂酶受体对抗剂.

关键词:

亨利反应亨利反应海洋天然产品海洋天然产品斯芬戈脂基是指脂基.结构修订结构修订总的综合总的综合

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