催化不对称合成一种强大的硫二醇抗生素
1Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
Journal of the American Chemical Society
|February 11, 2005
概括
研究人员首次实现了硫醇的全合成,这是具有广泛活性的强效海洋抗生素. 一个关键的催化逆电子需求Diels-Alder/allylboration序列使这种高效的合成成为可能.
科学领域:
- 海洋天然产品化学 海洋天然产品化学
- 有机合成 有机合成
- 药品化学 药品化学 是一个
背景情况:
- 硫醇是来自Alteromonas rava sp.的强效海洋抗生素. 在新的一年里.
- 这些化合物对格拉姆阳性和格拉姆阴性细菌都表现出活性.
- 硫醇的总合成在有机化学中是一个重大挑战.
研究的目的:
- 为了实现第一个 thiomarinol 化合物的全合成.
- 开发一种高效和立体选择性的合成路径.
- 探索用于复杂分子构造的新型催化方法.
主要方法:
- 总合成使用三组分反向电子需求的迪尔斯-阿尔德/艾利博拉测序.
- 采用催化酶选择性,区域选择性,E/Z-和隔离选择性反应.
- 使用3 - 甲烯烯酸松作为起始材料.
主要成果:
- 第一个 thiomarinol 的总合成完成了 22% 的全球产量.
- 开发了一种高效的催化逆电子需求迪尔斯-阿尔德/基boration序列.
- 合成证明了一种罕见的enantioselective Diels-Alder反应与非循环乙醇和有利的动力选择为Z-dienophile.
结论:
- 硫醇的成功全合成可使这些重要的海洋抗生素获得使用.
- 开发的合成策略突出了复杂分子合成中的催化不对称反应的力量.
- 这项工作为开发具有潜在治疗应用的新型硫二醇类似物开辟了道路.
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