Structure-activity relationship analyses of fusidic acid derivatives highlight crucial role of the C-21 carboxylic acid moiety to its anti-mycobacterial activity
Fusidic acid (FA) is a potent congener of the fusidane triterpenoid class of antibiotics. Structure-activityrelationship (SAR) studies suggest the chemical structure of FA is optimal for its antibacterial activity. SAR studies from our group within the context of a drug repositioning approach in tuberculosis (TB) suggest that, as with its antibacterial activity, the C-21 carboxylic acid group is indispensable
Synthesis of fusidic acid bioisosteres as antiplasmodial agents and molecular docking studies in the binding site of elongation factor-G
作者:Gurminder Kaur、Kawaljit Singh、Elumalai Pavadai、Mathew Njoroge、Marlene Espinoza-Moraga、Carmen De Kock、Peter J. Smith、Sergio Wittlin、Kelly Chibale
DOI:10.1039/c5md00343a
日期:——
Structural modifications through bioisosteric approach yielded fusidic acid analogues with 2–35 folds increase in antiplasmodial activity as compared to fusidic acid.
通过生物等构替方法进行的结构修饰产生了富司酸类似物,其抗疟活性比富司酸提高了2-35倍。
Synthesis of Fusidic Acid Derivatives Yields a Potent Antibiotic with an Improved Resistance Profile
作者:Martin Garcia Chavez、Alfredo Garcia、Hyang Yeon Lee、Gee W. Lau、Erica N. Parker、Kailey E. Komnick、Paul J. Hergenrother
DOI:10.1021/acsinfecdis.0c00869
日期:2021.2.12
Fusidic acid (FA) is a potent steroidal antibiotic that has been used in Europe for more than 60 years to treat a variety of infections caused by Gram-positivepathogens. Despite its clinical success, FA requires significantly elevated dosing (3 g on the first day, 1.2 g on subsequent days) to minimize resistance, as FA displays a high resistance frequency, and a large shift in minimum inhibitory concentration
夫西地酸 (FA) 是一种强效甾体抗生素,已在欧洲使用了 60 多年,用于治疗由革兰氏阳性病原体引起的各种感染。尽管在临床上取得了成功,但 FA 需要显着增加剂量(第一天 3 g,随后几天 1.2 g)以最小化耐药性,因为 FA 显示出高耐药频率,并且观察到耐药细菌的最小抑制浓度有很大变化。尽管努力在这些方面进行改进,但所有先前构建的 FA 衍生物对革兰氏阳性菌的抗菌活性都比母体天然产物更差。在这里,我们报告了一种新型 FA 类似物的产生,该类似物对金黄色葡萄球菌( S. aureu s) 和金黄色葡萄球菌的临床分离株具有同等效力。与 FA 相比,粪肠球菌( E. faecium ) 以及改进的体外抗性谱。重要的是,这种新化合物在软组织小鼠感染模型中对金黄色葡萄球菌FA 抗性菌株显示出功效。这项工作描绘了有效抗生素活性所必需的 FA 的结构特征,并证明可以改善该支架和靶标的耐药性。