Structure–Activity Relationship Study of 3-Amino-2-indolyllactam Derivatives: Development of Inhibitors of Oxidative Stress-Induced Necrosis
作者:Kosuke Dodo、Kenji Hayamizu、Tadashi Shimizu、Mikiko Sodeoka
DOI:10.1248/cpb.c16-00259
日期:——
Modification of our previously reported selective inhibitor of oxidative stress-induced necrosis, 2-(1H-indol-3-yl)-3-pentylamino-maleimide (IM-54) by regioselective reduction of the C-4 carbonyl group afforded a 3-amino-2-indolyllactam (IL-1) with more potent activity. To examine the structure–activity relationship of IL derivatives, we developed new synthetic routes with flexibility to incorporate a range of substituents at a late stage. The synthesized IL derivatives were evaluated for activity to inhibit necrotic cell death induced by hydrogen peroxide. Among them, IL-12 showed the most potent activity (IC50=49 nM) among the IL and indolylmaleimide (IM) derivatives examined.
我们之前报道的选择性氧化应激诱导坏死抑制剂2-(1H-吲哚-3-基)-3-戊胺基马来酰亚胺(IM-54)的C-4羰基区域选择性还原,得到了活性更强的3-氨基-2-吲哚基内酰胺(IL-1)。为了研究IL衍生物的构效关系,我们开发了新的合成路线,可以在后期灵活引入多种取代基。合成的IL衍生物进行了抑制过氧化氢诱导细胞坏死活性的评估。其中,IL-12在所检测的IL和吲哚基马来酰亚胺(IM)衍生物中显示出最强的活性(IC50=49 nM)。