4-Aminoquinolone Piperidine Amides: Noncovalent Inhibitors of DprE1 with Long Residence Time and Potent Antimycobacterial Activity
作者:Maruti Naik、Vaishali Humnabadkar、Subramanyam J. Tantry、Manoranjan Panda、Ashwini Narayan、Supreeth Guptha、Vijender Panduga、Praveena Manjrekar、Lalit kumar Jena、Krishna Koushik、Gajanan Shanbhag、Sandesh Jatheendranath、M. R. Manjunatha、Gopinath Gorai、Chandramohan Bathula、Suresh Rudrapatna、Vijayashree Achar、Sreevalli Sharma、Anisha Ambady、Naina Hegde、Jyothi Mahadevaswamy、Parvinder Kaur、Vasan K. Sambandamurthy、Disha Awasthy、Chandan Narayan、Sudha Ravishankar、Prashanti Madhavapeddi、Jitendar Reddy、KR Prabhakar、Ramanatha Saralaya、Monalisa Chatterji、James Whiteaker、Bob McLaughlin、Laurent R. Chiarelli、Giovanna Riccardi、Maria Rosalia Pasca、Claudia Binda、João Neres、Neeraj Dhar、François Signorino-Gelo、John D. McKinney、Vasanthi Ramachandran、Radha Shandil、Ruben Tommasi、Pravin S. Iyer、Shridhar Narayanan、Vinayak Hosagrahara、Stefan Kavanagh、Neela Dinesh、Sandeep R. Ghorpade
DOI:10.1021/jm5005978
日期:2014.6.26
whole genome sequencing of mutants raised against AQs, identified decaprenylphosphoryl-β-d-ribose 2′-epimerase (DprE1) as the primary target responsible for the antitubercular activity. Mass spectrometry and enzyme kinetic studies indicated that AQs are noncovalent, reversible inhibitors of DprE1 with slow on rates and long residence times of ∼100 min on the enzyme. In general, AQs have excellent leadlike
从整个细胞筛选开始,将4-氨基喹诺酮哌啶酰胺(AQs)鉴定为新型支架,对结核分枝杆菌(Mtb)具有有效的杀灭作用。评估最低抑菌浓度,然后对针对AQs的突变体进行全基因组测序,确定癸二烯基磷酸基-β- d-核糖2'-表异构酶(DprE1)作为负责抗结核活性的主要靶标。质谱和酶动力学研究表明,AQs是DprE1的非共价可逆抑制剂,具有缓慢的速率和在酶上约100分钟的长停留时间。通常,AQ具有出色的铅样性质和良好的体外二级药理学特征。尽管从整个细胞筛选中开始,支架是一种具有中等效力的单一活性化合物,但该支架的结构-活性关系优化使化合物具有强大的DprE1抑制作用(IC 50 <10 nM)以及强大的细胞活性(MIC = 60)。 nM)对抗Mtb。