ABSTRACT
One way to speed up the TB drug discovery process is to search for antitubercular activity among compound series that already possess some of the key properties needed in anti-infective drug discovery, such as whole-cell activity and oral absorption. Here, we present MGIs, a new series of
Mycobacterium tuberculosis
gyrase inhibitors, which stem from the long-term efforts GSK has dedicated to the discovery and development of novel bacterial topoisomerase inhibitors (NBTIs). The compounds identified were found to be devoid of fluoroquinolone (FQ) cross-resistance and seem to operate through a mechanism similar to that of the previously described NBTI GSK antibacterial drug candidate. The remarkable
in vitro
and
in vivo
antitubercular profiles showed by the hits has prompted us to further advance the MGI project to full lead optimization.
摘要
加快结核病药物发现过程的一种方法是在已经具备抗感染药物发现所需的一些关键特性(如全细胞活性和口服吸收)的化合物系列中寻找抗结核活性。在此,我们介绍 MGIs,这是一种新的结核分枝杆菌药物系列。
结核分枝杆菌
回旋酶
抑制剂,这是
葛兰素史克长期致力于发现和开发新型细菌拓扑异构酶
抑制剂 (
NBTI) 的成果。经鉴定,这些化合物没有
氟喹诺酮(FQ)交叉抗药性,其作用机制似乎与
葛兰素史克公司之前描述的
NBTI 候选抗菌药物相似。其显著的
体外
和
体内
的抗结核特性促使我们进一步推进 MGI 项目,以全面优化先导药物。