毒性
药理学
结核分枝杆菌
体内
化学
肺结核
细胞毒性
急性毒性
药品
药代动力学
体外
医学
生物化学
生物
生物技术
病理
有机化学
作者
Apeng Wang,Ning Du,Huijuan Song,Yuehao Zhang,Xijun Zhong,Jizhou Wu,Tiezheng Xue,Mingliang Liu,Bin Wang,Kai Lv,Yu Lu
标识
DOI:10.1016/j.ejmech.2023.115545
摘要
Tuberculosis (TB), caused by Mycobacterium tuberculosis (MTB) remains a major global health problem and new therapeutic antitubercular agents are urgent needed. Among the novel antituberculosis drugs in the pipeline, Benzothiazinones (BTZs) are among the most potent antituberculosis agents against both drug-susceptible and multidrug-resistant (MDR) tuberculosis. Our group has focused on structural modifications of the side chain at C-2 position of the BTZ core and WAP-2101/2102 with excellent in vitro activity were discovered in our lab. However, the severe in vivo toxicity was observed during subsequent acute toxicity evaluation. Herein, a series of novel N-(amino)piperazinyl benzothiazinone derivatives were designed and synthesized as new anti-TB agents to reduce the in vivo toxicity. Our results show that majority of them exhibit the same potent or comparable activity against both MTB H37Rv and MDR-MTB strains (MIC: 4.00 - <1 ng/mL) as PBTZ169. Especially, compound 2c with low cardiac toxicity, low cell cytotoxicity and acceptable oral pharmacokinetic (PK) profiles have low acute toxicity in mice (LD50 > 500 mg/kg), suggesting it may serve as a promising lead compound for further antitubercular drug discovery.
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