Institute for Chemical Biology & Drug Discovery, Department of Chemistry, Stony Brook University, Stony Brook, NY 11794-3400, USA.
Bioorg Med Chem Lett. 2010 Nov 1;20(21):6306-9. doi: 10.1016/j.bmcl.2010.08.076. Epub 2010 Aug 21.
Menaquinone is an essential component of the electron transport chain in many pathogens and consequently enzymes in the menaquinone biosynthesis pathway are potential drug targets for the development of novel antibacterial agents. In order to identify leads that target MenB, the 1,4-dihydroxy-2-naphthoyl-CoA synthase from Mycobacterium tuberculosis, a high-throughput screen was performed. Several 1,4-benzoxazines were identified in this screen and subsequent SAR studies resulted in the discovery of compounds with excellent antibacterial activity against M. tuberculosis H37Rv with MIC values as low as 0.6μg/ml. The 1,4-benzoxazine scaffold is thus a promising foundation for the development of antitubercular agents.
甲萘醌是许多病原体电子传递链的必需组成部分,因此甲萘醌生物合成途径中的酶是开发新型抗菌药物的潜在药物靶点。为了鉴定针对 MenB 的先导化合物,即结核分枝杆菌的 1,4-二羟基-2-萘酰基辅酶 A 合酶,进行了高通量筛选。在该筛选中鉴定出了几种 1,4-苯并恶嗪,随后的 SAR 研究发现了具有优异抗结核分枝杆菌 H37Rv 活性的化合物,MIC 值低至 0.6μg/ml。因此,1,4-苯并恶嗪骨架是开发抗结核药物的有前途的基础。