Discovery and preliminary mechanism of 1-carbamoyl β-carbolines as new antifungal candidates
作者:Tao Sheng、Mengmeng Kong、Yujie Wang、HuiJun Wu、Qin Gu、Anita Shyying Chuang、Shengkun Li、Xuewen Gao
DOI:10.1016/j.ejmech.2021.113563
日期:2021.10
Natural β-carboline alkaloids are ideal models for the discovery of pharmaceutically important entities. Various 1-substituted β-carbolines were synthesized from commercially inexpensive tryptophan and demonstrated significant in vitro antifungal activity against G. graminis. Significantly, compound 4m (EC50 = 0.45 μM) with carboxamide at 1-position displayed the best efficacy and nearly 20 folds enhancement
天然β-咔啉生物碱是发现重要药物实体的理想模型。各种 1-取代的β-咔啉是由商业上廉价的色氨酸合成的,并在体外对禾谷菌具有显着的抗真菌活性。值得注意的是, 与 Silthiopham (EC 50 = 8.95 μM)相比,在 1 位具有甲酰胺的化合物4m (EC 50 = 0.45 μM) 显示出最佳功效和近 20 倍的抗真菌潜力增强。此外,化合物6,7和4I显示出优异的体外抗真菌活性以及针对B. cinerea和F. graminearum 的体内保护和治疗活性。初步机制研究表明,化合物4m导致活性氧积累、细胞膜破坏和组蛋白乙酰化失调。这些发现表明 1-氨基甲酰基β-咔啉可以作为发现新型广谱杀菌剂候选物的有前途的模型。