硫类抗生素胺基素D的总合成
Rachael A Hughes1, Stewart P Thompson, Lilian Alcaraz
1School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom.
Journal of the American Chemical Society
|November 3, 2005
概括
研究人员实现了阿米西阿米辛D的总合成,这是一种硫类抗生素. 一个关键的 hetero-Diels-Alder 反应形成了胺核,使得这种复杂分子的构建具有潜在的抗微生物和抗疟疾特性.
科学领域:
- 有机化学 有机化学
- 药用化学 医学化学
- 自然产品的合成自然产品的合成
背景情况:
- 硫抗生素是含硫的循环,具有显著的生物活性.
- 胺基亚胺D对抗抗甲素耐药黄金葡萄球菌 (MRSA) 和疟疾具有潜在的有效性.
研究的目的:
- 为了描述 thiopeptide 自然产品 amythiamicin D. 的总合成.
- 探索一种新的生物合成灵感的异质-迪尔斯-阿尔德策略,用于构建胺核.
主要方法:
- 在微波辐射下利用了氨酸衍生型1-乙氧-2-阿兹烯和N-乙胺之间的异质-迪尔斯-阿尔德反应.
- 通过Hantzsch反应或二 ((II) 催化碳N-H插入,然后进行化,合成了 thiazole 构成块.
- 组装了四亚酸核,并通过碎片合并和宏循环处理进行了详细的研究.
主要成果:
- 通过使用开发的 hetero-Diels-Alder 方法成功合成了 2,3,6-trisubstituted pyridines.
- 构建了 bis-thiazole 片段和核心 tetrathiazolyl pyridine 结构.
- 通过序列断片合和宏循环化完成了氨基亚米辛D的总合成.
结论:
- 这项研究展示了阿米西阿米辛D的成功总合成,突出了新的合成途径.
- 开发的 hetero-Diels-Alder 策略是有效的,用于构建高度替代的氨酸核,相关的thio peptide 抗生素.
- 这种合成为进一步探索类类似物及其治疗潜力提供了基础.
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