Design, synthesis and the structure-activity relationship of agonists targeting on the ALDH2 catalytic tunnel
作者:Ming-Che Cheng、Wei-Chi Lo、Yu-Wen Chang、Shoei-Sheng Lee、Chia-Chuan Chang
DOI:10.1016/j.bioorg.2020.104166
日期:2020.11
molecular aldehydes, which induce severe organ damages. The development of novel Alda-1 type ALDH2 activators was mostly relied on HTS but not rational design so far. To clarify the structure–activity relationship (SAR) of the skeleton of Alda-1 analogs by synthesis of the least number of analogs, we prepared 31 Alda-1 analogs and 3 isoflavone derivatives and evaluated for their ALDH2-activating activity. Among
ALDH2是酒精代谢过程中的关键酶,可对几种有毒的小分子醛进行解毒,从而导致严重的器官损伤。迄今为止,新型Alda-1型ALDH2激活剂的开发主要依赖于HTS,而不是合理的设计。为了通过最少数量的类似物的合成来阐明Alda-1类似物的骨架的结构活性关系(SAR),我们制备了31个Alda-1类似物和3个异黄酮衍生物,并评估了其对ALDH2的激活活性。在这些中,的ALDH2激活活性单卤素取代的(Cl和Br)ñ -piperonylbenzamides 3B和3 K,和非芳族酰胺8A-8C在20μM时比Alda-1高1.5-2.1倍。阐明了计算机辅助分子对接模型中结合亲和力与ALDH2激活活性测定之间的关系:对于Alda-1类似物,随着卤素键的形成,发现酶激活活性遵循特定的回归曲线。范围在-5 kcal / mol和-4 kcal / mol之间。对于异黄酮衍生物,B环上的碱性部分可增强活化活