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总合成和确定RAKICIDIN A的绝对配置
Feng Sang1, Dongmei Li, Xiaolong Sun
1College of Pharmacy, State Key Laboratory of Elemento-Organic Chemistry, State Key Laboratory of Medicinal Chemical Biology, Nankai University , Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071 P. R. China.
Journal of the American Chemical Society
|October 7, 2014
概括
研究人员确定了rakicidin A的立体化学,rakicidin A是一种具有潜在抗癌干细胞活性的循环脱. 总合成证实了它的绝对配置,有助于未来治疗慢性骨髓性白血病的药物开发.
科学领域:
- 自然产品化学 自然产品化学
- 药用化学 医学化学
- 有机合成 有机合成
背景情况:
- 拉基西丁A是一种循环脱类,对慢性骨髓性白血病干细胞有明显的增长抑制作用.
- 该分子拥有五个性中心,导致32个潜在的立体异构体,使其结构阐明和生物评估复杂化.
研究的目的:
- 为了预测和确认rakicidin A.的立体化学分配.
- 合成rakicidin A,以验证拟议的结构和绝对配置.
- 建立一种方法来确定相关循环脱类中的性中心.
主要方法:
- 用计算方法和与已知的循环脱类的结构比较来预测立体化学.
- 完成了拟议的rakicidin A结构的总合成,采用了一种新的方法,通过转化构建一个经过硬质阻碍的结.
- 合成产品的分析数据与天然的rakicidin A.A.进行了比较.
主要成果:
- 拉基丁A的绝对配置被分配为2S,3S,14S,15S,16R.
- 合成途径成功产生了rakicidin A,分析数据与天然化合物相匹配.
- 该研究提供了一个框架,用于在其他复杂的循环脱酸中赋予立体化学.
结论:
- 拉基西丁A的绝对配置已经通过总合成和分析比较来确定.
- 这项研究有助于进一步研究rakicidin A作为抗癌干细胞应用中的潜在治疗剂.
- 开发的合成策略可用于阐明其他相关自然产品的结构.
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