通过结晶诱导的二重选择性转换有效合成NK(1) 受体对手阿普雷皮坦
Karel M J Brands1, Joseph F Payack, Jonathan D Rosen
1Department of Process Research, Merck Research Laboratories, Rahway, New Jersey 07065, USA.
Journal of the American Chemical Society
|February 20, 2003
概括
这项研究提出了一种有效的立体选择合成阿普雷皮坦,NK1受体对抗剂. 这种新的方法实现了55%的总产量,为这个重要的候选药物提供了可行的途径.
科学领域:
- 有机化学 有机化学
- 药用化学 医学化学
- 过程化学 过程化学
背景情况:
- NK1受体对抗剂阿普雷皮坦对于治疗化疗引起的恶心和吐至关重要.
- 开发高效和立体选择性合成路径对于阿普雷皮坦的制药生产至关重要.
研究的目的:
- 描述阿普雷皮坦的高效和立体选择性合成.
- 优化关键反应步骤以提高产量和立体化学控制.
主要方法:
- 立体选择性合成包括凝结,三乙酸激活和易斯酸介导的合.
- 结晶诱导的不对称转换以获得单个二聚体.
- 一转换为α-化) 形态衍生物.
- 最后的步骤是添加一个三利诺侧链.
主要成果:
- 开发了一种新的结晶诱导的不对称转换.
- 观察并利用了意想不到的[1,2]-Wittig和[1,3]-sigmatropic重组.
- 在最长的线性序列中,合成实现了阿普雷皮坦的55%的总产量.
结论:
- 描述的合成途径对于阿普雷皮坦生产是高效和立体选择性的.
- 这些新的转换为复杂的有机合成提供了宝贵的见解.
- 这种方法为获得目标临床候选人提供了一个实际的途径.
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