发现了基于类固醇的新型基因组胺 H3受体对抗剂/逆对抗剂
István Ledneczki1, Pál Tapolcsányi1, Eszter Gábor1
1Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary.
Journal of medicinal chemistry
|February 23, 2024
概括
开发了基于类固醇的新型组胺H3受体对抗剂. 有前途的化合物显示出高亲和力,体内对抗性和认知益处,没有hERG或肌肉活性.
科学领域:
- 药用化学 医学化学
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 组胺H3受体 (H3R) 是神经递质释放的关键调节者.
- 开发选择性H3R抗剂对于治疗神经和精神疾病至关重要.
- 类固醇支架为H3R抗剂设计提供了独特的结构基础.
研究的目的:
- 设计和合成基于类固醇的新型H3R抗剂 (d-homoazasteroids).
- 为了优化化合物高亲和力,选择性和体内疗效.
- 为了评估安全性,特别是hERG和肌肉蛋白受体相互作用.
主要方法:
- HTS的组合击中了分子碎片,以创建d-homoazasteroids.
- 在体外鉴定受体亲和力和功能活性 (对抗剂/反抗剂).
- 在体内研究包括dipsogenia,认知范式 (识别记忆) 和代谢稳定性评估.
- 基于干的SAR和分子对接用于结构-活性关系分析.
主要成果:
- 几种d-homoazasteroids对H3受体具有很高的亲和力.
- 17a-aza-d-homolactam化学型在体外和体内显示出强大的H3R对抗性.
- 优化的化合物 (XXI,XXVIII,XX) 显示了可以忽略不计的hERG和肌肉蛋白亲和力.
- 化合物在认知测试中显示了代谢稳定性和显著的体内疗效.
结论:
- 基于类固醇的d-homoazasteroids代表了一个有前途的H3R抗剂类.
- 优化的化合物提供了有利的安全性和治疗潜在的认知障碍.
- 这些化合物的进一步开发可能会导致中枢神经系统疾病的新疗法.
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