达罗巴A的总合成
Marko Nesic1, David B Ryffel1, Jonathan Maturano1
1Department of Chemistry and Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois61801, United States.
Journal of the American Chemical Society
|July 28, 2022
概括
研究人员实现了达洛巴A的全合成,这是一种针对格拉姆阴性细菌的新型抗生素. 这种高效的合成利用了非正规氨基酸的可扩展路径和双重循环的顺序拉洛克醇循环.
科学领域:
- 有机化学
- 医学化学
- 合成生物学
背景情况:
- 达罗巴A是一种最近发现的抗生素,具有针对格拉姆阴性细菌的选择性活性.
- 达洛巴A的复杂结构对化学合成构成重大挑战.
- 由于抗生素耐药性日益增加, 向格拉姆阴性细菌至关重要.
研究的目的:
- 为了实现达洛巴A的全合成.
- 为包括非正规氨基酸在内的关键构件开发可扩展的合成路径.
- 探索和优化用于构建双宏环核的循环化策略.
主要方法:
- 融合合成的战略.
- 为三个非正规氨基酸开发可扩展的路径.
- 连续的,选择性的拉罗克合剂,用于双大环闭合.
主要成果:
- 达洛巴A的成功综合完成.
- 由d-加纳化物和l-氨酸获得的16个步骤的最长线性序列.
- 序列循环的顺序对于正确的形体的形成至关重要.
结论:
- 使用融合方法可以完成达洛巴A的总合成.
- 开发的方法提供了一个有前途的新抗生素支架.
- 这项工作验证了序列拉洛克合在复杂分子构造中的实用性.
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