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Solid-phase Synthesis of [4.4] Spirocyclic Oximes
Published on: February 6, 2019
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发现和描述基于螺旋异醇的强大脑连体,具有新的结合模式
Robert Shevalev1, Luca Bischof2, Alexander Sapegin1
1Institute of Chemistry, Saint Petersburg State University, Saint Petersburg, Russia.
European journal of medicinal chemistry
|March 29, 2024
概括
研究人员使用独特的螺旋环型谷物胺结构开发了新型大脑 (CRBN) 配体. 这些新化合物显示出更好的结合亲和力和有利的细胞毒性,为基于thalidomide的药物提供了一个有希望的替代品.
科学领域:
- 药用化学 医学化学
- 结构生物学 结构生物学
- 药物发现 药物发现 药物发现
背景情况:
- 目前的大脑 (CRBN) 连接体主要使用thalidomide支架,导致类似的结合方式和潜在毒性.
- 谷氨胺部分是CRBN联体结合的核心,但其固有的特性限制了治疗应用.
研究的目的:
- 设计和合成具有独特结合方式的新型CRBN配体,与thalidomide不同.
- 评估这些新化合物的结合亲和力,脂性和细胞毒性概况.
- 探索一种新型化学型的潜力,作为蛋白质溶解向金马 (PROTACs) 的基石.
主要方法:
- 合成了16种含有异素部分的螺旋环型谷物胺衍生物.
- 与thalidomide相比,对联体脂友性和结合亲和力的评估.
- 在髓瘤细胞系和人类外周血液单核细胞中评估细胞毒性.
- 确定共同晶体结构以阐明结合模式.
主要成果:
- 所有合成的配体都表现出有利的脂友性.
- 与thalidomide相比,一些化合物对CRBN表现出更高的结合亲和力.
- 所有测试的化合物都显示出有利的细胞毒性概况.
- 共同晶体结构揭示了一种新的结合模式,涉及改变的谷物胺构造和突出的小部分方向.
结论:
- 这种新型的螺旋环型谷氨胺化学型为CRBN提供了前所未有的结合模式.
- 这种新的结合模式解释了改进的特性,包括增强的亲和力和减少与新基质的直接相互作用.
- 这一类化合物代表了开发下一代PROTAC的有希望的支架,其安全性可能会得到改善.
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