Novel N-Linked Aminopiperidine-Based Gyrase Inhibitors with Improved hERG and in Vivo Efficacy against <i>Mycobacterium tuberculosis</i>
作者:Shahul Hameed P、Vikas Patil、Suresh Solapure、Umender Sharma、Prashanti Madhavapeddi、Anandkumar Raichurkar、Murugan Chinnapattu、Praveena Manjrekar、Gajanan Shanbhag、Jayashree Puttur、Vikas Shinde、Sreenivasaiah Menasinakai、Suresh Rudrapatana、Vijayashree Achar、Disha Awasthy、Radha Nandishaiah、Vaishali Humnabadkar、Anirban Ghosh、Chandan Narayan、V. K. Ramya、Parvinder Kaur、Sreevalli Sharma、Jim Werngren、Sven Hoffner、Vijender Panduga、C. N. Naveen Kumar、Jitendar Reddy、Mahesh Kumar KN、Samit Ganguly、Sowmya Bharath、Ugarkar Bheemarao、Kakoli Mukherjee、Uma Arora、Sheshagiri Gaonkar、Michelle Coulson、David Waterson、Vasan K. Sambandamurthy、Sunita M. de Sousa
DOI:10.1021/jm500432n
日期:2014.6.12
value. We describe a novel class of N-linked aminopiperidinyl alkyl quinolones and naphthyridones that kills Mtb by inhibiting the DNA gyrase activity. The mechanism of inhibition of DNA gyrase was distinct from the fluoroquinolones, as shown by their ability to inhibit the growth of fluoroquinolone-resistant Mtb. Biochemical studies demonstrated this class to exert its action via single-strand cleavage
DNA促旋酶是开发抗结核分枝杆菌药物的临床验证靶标(MTB)。尽管有希望将氟喹诺酮类药物(FQs)用作抗结核药物,但先前对FQs耐药的流行很可能会限制其临床价值。我们描述了一种新型的N-连接的氨基哌啶基烷基喹诺酮类和萘啶酮类,通过抑制DNA促旋酶活性杀死Mtb。DNA促旋酶的抑制机制与氟喹诺酮类截然不同,其抑制氟喹诺酮类抗性Mtb生长的能力证明了这一点。生化研究表明,该类化合物通过单链裂解而不是双链裂解发挥作用,如氟喹诺酮类药物所见。这些化合物对细胞外和细胞内的Mtb具有高度的杀菌作用。铅的优化导致鉴定了具有改善的口服生物利用度并降低了心脏离子通道负担的有效化合物。该系列化合物在各种结核病鼠模型中均有效。