灾难选择性合成和σ1受体配体的结构亲和关系与螺旋循环支架
Tobias Winge1, Dirk Schepmann1, Judith Schmidt1
1Universität Münster, Institut für Pharmazeutische und Medizinische Chemie, Corrensstraße 48, D-48149 Münster, Germany. wuensch@uni-muenster.de.
Organic & biomolecular chemistry
|September 11, 2023
概括
新的螺旋环化合物被合成,以改善药物发现. 这些刚性结构对西格玛-1 (σ1) 受体具有很高的亲和力和有利的类似药物的特性,其中一种化合物表现出极好的脂友性联体效率.
科学领域:
- 药用化学 医学化学
- 有机合成 有机合成
- 计算化学的计算化学
背景情况:
- 螺旋循环支架通过提供严格的3D结构来增强药物发现,以实现精确的蛋白质结合.
- 在化合物中,使灵活的侧链硬化对于改善目标相互作用至关重要.
研究的目的:
- 将螺旋环中心引入化合物,以使其柔性胺乙烯侧链刚性化.
- 合成新型螺旋环氧甲基 piperidines,并评估其药理和物理化学特性.
主要方法:
- 通过α,β不和胺基与甲基烯酸盐的反应合成螺旋环化合物.
- 密度函数理论 (DFT) 计算以阐明反应机制 (迪尔斯-阿尔德或迈克尔加法).
- 分离二聚体和LiAlH4减少以产生标化合物;评估σ1和σ2受体亲和力和GluN2B-NMDA受体选择性.
主要成果:
- 合成的螺旋环氧甲基皮佩里丁具有低纳米 σ1 亲和力 (Ki < 100 nM).
- 与cis-analogs相比,转换配置的配体对σ2和GluN2B-NMDA受体表现出较高或相同的σ1亲和力和选择性.
- 迪斯皮罗化合物23a获得了高 σ1 亲和力 (Ki = 3.6 nM) 和优异的脂友性联体效率 (LLE = 6.0).
结论:
- 螺旋环化合物,特别是旋环化合物23a,表现出有利的药理学 (高 σ1 亲和力,受体选择性) 和物理化学特性 (最佳 logD7.4).
- 具有高sp3碳含量的配体为药物发现提供了有希望的配置文件,平衡了目标参与和药物相似性.
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