hERG optimizations of IMB1603, discovery of alternative benzothiazinones as new antitubercular agents
作者:Kai Lv、Apeng Wang、Zeyu Tao、Lei Fu、Hongtao Liu、Bin Wang、Chao Ma、Hongjian Wang、Xican Ma、Bing Han、Auyu Wang、Kai Zhang、Mingliang Liu、Yu Lu
DOI:10.1016/j.ejmech.2019.06.053
日期:2019.10
IMB1603, a new benzothiazinone lead discovered by our lab, exhibited potent anti-MTB activity in vitro and in vivo, but significant hERG binding potency (IR > 90% at 10 μM). Thus, we embarked on a lead optimization program with the goal of identifying alternative leads that could reduce the hERG liability without sacrificing antimycobacterial potency. Compounds 2c and 4c were identified to maintain
IMB1603是我们实验室发现的一种新的苯并噻嗪酮铅,在体外和体内均显示出有效的抗MTB活性,但具有显着的hERG结合力(在10μM时IR> 90%)。因此,我们开始了一项潜在顾客优化计划,目的是确定可以减少hERG责任而不牺牲抗分枝杆菌效力的替代潜在顾客。鉴定出化合物2c和4c保持抗MTB活性(MICs <0.035–0.078μM),并具有较低的hERG结合亲和力(10μM时IR <50%)。还发现它们都具有可接受的安全性和药代动力学性质。确定2c体内功效的研究和4c目前正在进行中。