Discovery of a New Class of Sortase A Transpeptidase Inhibitors to Tackle Gram-Positive Pathogens: 2-(2-Phenylhydrazinylidene)alkanoic Acids and Related Derivatives
作者:Benedetta Maggio、Demetrio Raffa、Maria Raimondi、Stella Cascioferro、Fabiana Plescia、Domenico Schillaci、Maria Cusimano、Ainars Leonchiks、Dmitrijs Zhulenkovs、Livia Basile、Giuseppe Daidone
DOI:10.3390/molecules21020241
日期:——
as an example of a new class of sortase A inhibitors. Other analogues were generated by changing the ethoxycarbonyl function for a carboxy, cyano or amide group, or introducing substituents in the phenyl ring of the ester and acid derivatives. The most active derivative found was 3-oxo-2-(2-(3,4dichlorophenyl)hydrazinylidene)butanoic acid (2b), showing an IC50 value of 50 µM. For a preliminary assessment
使用基于 FRET 的随机筛选试验来生成作为分选酶 A 抑制剂的命中化合物,这使我们能够将 3-氧代-2-(2-苯肼亚基) 丁酸乙酯鉴定为一类新的分选酶 A 抑制剂。其他类似物是通过改变羧基、氰基或酰胺基团的乙氧羰基官能团,或在酯和酸衍生物的苯环中引入取代基而产生的。发现的活性最强的衍生物是 3-oxo-2-(2-(3,4dichlorophenyl)hydrazinylidene)butanoic acid (2b),IC50 值为 50 µM。为了初步评估它们的抗毒特性,测试了新衍生物的抗生物膜活性。活性最强的化合物是 2a,其对金黄色葡萄球菌 ATCC 29213、金黄色葡萄球菌 ATCC 25923、金黄色葡萄球菌 ATCC 6538 和金黄色葡萄球菌 ATCC 6538 的抑制作用约为 60%。