Discovery of a Novel Class of State-Dependent Na<sub>V</sub>1.7 Inhibitors for the Treatment of Neuropathic Pain
作者:Kyosuke Tanaka、Hiroyuki Kobayashi、Sayaka Suzuki、Satoshi Shibuya、Hiroko Kimoto、Yuki Domon、Kazufumi Kubota、Yutaka Kitano、Tomihisa Yokoyama、Akiko Shimizugawa、Ryuta Koishi、Chie Fujiwara、Daigo Asano、Tsuyoshi Shinozuka
DOI:10.1248/cpb.c20-00126
日期:2020.7.1
class of state-dependent voltage-gated sodium channel (NaV)1.7 inhibitors is described. By the modification of amide or urethane bond in NaV1.7 blocker III, structure-activity relationship studies that led to the identification of novel NaV1.7 inhibitor 2i (DS01171986) were performed. Compound 2i exhibited state-dependent inhibition of NaV1.7 without NaV1.1, NaV1.5 or human ether-a-go-go related gene (hERG)
描述了新型的状态依赖性电压门控钠通道(NaV)1.7抑制剂的发现。通过在NaV1.7阻滞剂III中修饰酰胺或氨基甲酸酯键,进行了结构活性关系研究,从而鉴定了新型NaV1.7抑制剂2i(DS01171986)。化合物2i在浓度高达100μM的条件下对NaV1.7表现出状态依赖性抑制作用,而没有NaV1.1,NaV1.5或人类以太相关基因(hERG)负性。进一步的生物学分析成功地揭示了2i在神经性疼痛的小鼠模型(ED50:3.4 mg / kg)中具有有效的镇痛特性,并具有出色的中枢神经系统(CNS)安全裕度(> 600倍)。