Total synthesis/semi-synthesis of natural isopentenyl flavonoids with inhibitory activity on NLRP3 inflammasome
作者:Yingjie Hu、Mengjun Su、Yichao Kong、Caihong Jiang、Yaxia Yuan、Xiabin Chen、Lei Ma
DOI:10.1016/j.bmcl.2024.129777
日期:2024.4
efficient -isopentenylation method was also simultaneously explored that could facilitate the efficient synthesis of natural products. These compounds were evaluated for their potential anti-inflammatory activities via the NLRP3 signaling pathway. Notably, Macarangin () manifested the most potent inhibitory effect. The SAR (Structure-Activity Relationships) also showed the introduction of the isopentenyl
炎症是身体对刺激的防御反应。当体内平衡受到干扰时,可能会导致疾病。黄酮类化合物具有明显的抗炎作用,异戊烯基显着增强黄酮类化合物的药理活性。因此,异戊烯基黄酮类化合物有潜力作为抗炎药物开发的先导化合物。本研究共合成了 8 个天然化合物,包括 5,7-二羟基-4'-甲氧基-8-异戊二烯类黄酮 ()、4'-O-甲基阿兰黄酮 ()、Kushenol W () 和消旋黄酮 (),并已全合成首次。此外,三种黄酮醇:Licoflavonol ()、3,5,7,3',4'-五羟基-6-异戊二烯黄酮醇 () 和 Macarangin (),可以通过直接异戊烯化一步合成。在此过程中,还同时探索了一种经济高效的β-异戊烯基化方法,以促进天然产物的高效合成。通过 NLRP3 信号通路评估这些化合物的潜在抗炎活性。值得注意的是,Macarangin ()表现出最有效的抑制作用。 SAR(结构-活性关系)还表明异戊烯