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。
[EN] BLANCHED POLYAMINE STEROID DERIVATIVES<br/>[FR] DERIVES DE POLYAMINES STEROIDES RAMIFIEES
申请人:LEO PHARMA AS
公开号:WO2003087121A1
公开(公告)日:2003-10-23
Novel compounds comprising a steroid backbone coupled to a branched polyamine according to formula (I); are provided. The compounds show antimicrobial activity and may be used in the treatment and prevention of infections, in particular bacterial infections.
Fusidic Acid Derivatives. I. Relationship between Structure and Antibacterial Activity
作者:W. O. Godtfredsen、W. von Daehne、L. Tybring、S. Vangedal
DOI:10.1021/jm00319a004
日期:1966.1
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
Semisynthetic Antimycobacterial C-3 Silicate and C-3/C-21 Ester Derivatives of Fusidic Acid: Pharmacological Evaluation and Stability Studies in Liver Microsomes, Rat Plasma, and <i>Mycobacterium tuberculosis</i> culture
and aryl esters functioned as classic prodrugs of FA, being hydrolyzed to FA in microsomes, plasma, and Mycobacterium tuberculosis culture. In contrast, C-3 silicate esters and C-21 esters were inert to hydrolysis and so did not act as prodrugs. The antimycobacterial activity of the C-3 silicate esters was comparable to that of FA, and these compounds were stable in microsomes and plasma, identifying