Identification of a new series of benzothiazinone derivatives with excellent antitubercular activity and improved pharmacokinetic profiles
作者:Lu Xiong、Chao Gao、Yao-Jie Shi、Xin Tao、Juan Rong、Kun-Lin Liu、Cui-Ting Peng、Ning-Yu Wang、Qian Lei、Yi-Wen Zhang、Luo-Ting Yu、Yu-Quan Wei
DOI:10.1039/c8ra00720a
日期:——
excellent antitubercular activity and low cytotoxicity. Several of the compounds showed improved microsomal stability and lower plasma protein-binding, opening a new direction for further lead optimization. And we obtained compound 3o, which maintained good anti-tuberculosis activity (MIC = 8 nM) and presented better in vitro ADME/T and in vivo pharmacokinetic profiles than reported BTZ compound PBTZ169
硝基苯并噻嗪酮 (BTZ) 是一种很有前途的支架,通过抑制十异戊二烯基磷酰基-β- D-核糖 2′-氧化酶 (DprE1),具有有效对抗结核分枝杆菌的活性。但不利的耐久性给此类药物的进一步开发带来了挑战。在此,设计并合成了一系列在C-2位带有多种不同取代基的BTZ。筛选了化合物对结核分枝杆菌H37Ra 的抗分枝杆菌活性,并对其代谢稳定性、血浆蛋白结合能力和体内药代动力学进行了分析。总的来说,这些含有N-哌嗪、 N-哌啶或N-哌啶酮部分的新型BTZ具有优异的抗结核活性和较低的细胞毒性。其中几种化合物表现出改善的微粒体稳定性和较低的血浆蛋白结合,为进一步先导化合物优化开辟了新方向。我们获得了化合物3o ,其保持了良好的抗结核活性(MIC = 8 nM),并且比报道的 BTZ 化合物PBTZ169表现出更好的体外ADME/T 和体内药代动力学特征,可作为治疗结核病的候选药物。