Whole cell screen based identification of spiropiperidines with potent antitubercular properties
作者:Subramanyam J. Tantry、Giulia Degiacomi、Sreevalli Sharma、Lalit kumar Jena、Ashwini Narayan、Supreeth Guptha、Gajanan Shanbhag、Sreenivasaiah Menasinakai、Meenakshi Mallya、Disha Awasthy、Gayathri Balakrishnan、Parvinder Kaur、Deepa Bhattacharjee、Chandan Narayan、Jitendar Reddy、C.N. Naveen Kumar、Radha Shandil、Francesca Boldrin、Marcello Ventura、Riccardo Manganelli、Ruben C. Hartkoorn、Stewart T. Cole、Manoranjan Panda、Shankar D. Markad、Vasanthi Ramachandran、Sandeep R. Ghorpade、Neela Dinesh
DOI:10.1016/j.bmcl.2015.05.087
日期:2015.8
non-replicating (NRP) conditions, resulted in the identification of multiple, novel but structurally related spiropiperidines with potent antitubercular properties. These compounds could be further classified into three classes namely 3-(3-aryl-1,2,4-oxadiazol-5-yl)-1′-alkylspiro[indene-1,4′-piperidine] (abbr. spiroindenes), 4-(3-aryl-1,2,4-oxadiazol-5-yl)-1′-alkylspiro[chromene-2,4′-piperidine] (abbr. spirochromenes)
在复制和非复制(NRP)条件下进行的基于全细胞的筛选,以鉴定抗结核分枝杆菌(Mtb)的命中物,从而鉴定出具有有效抗结核特性的多种新颖但与结构相关的螺哌啶。这些化合物可进一步分为三类,即3-(3-芳基-1,2,4-恶二唑-5-基)-1'-烷基螺[茚-1,4'-哌啶](螺环茚), 4-(3-芳基-1,2,4-恶二唑-5-基)-1'-烷基螺[色烯-2,4'-哌啶](螺螺铬烯)和1'-苄基螺[吲哚-1,4 ′-哌啶] -2(1 H)-1 (螺旋螺吲哚)。螺茚显示⩾4log 10在复制的Mtb上杀死(2–12μM),但在非复制条件下具有中等活性。螺环茚抗性突变体的全基因组测序工作导致鉴定了MmpL3(大分枝杆菌膜蛋白)中的I292L突变,这是将霉菌酸组装到Mtb的细胞壁核心中所必需的。MIC调制研究表明,该突变体对螺环色酮具有交叉抗性,但对螺线吲哚酮不具有交叉抗性。该信函描述了铅鉴定工作,旨在提高效