Design, Synthesis, and Biological Evaluation of 1,4-Diaryl-1,4-dihydropyrazines as Novel 11β-HSD1 Inhibitors
作者:Xiaowei Duan、Hongxing Xin、Hong Yan
DOI:10.1248/bpb.b14-00070
日期:——
The inhibition of 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) has demonstrated potential for the treatment of various components of metabolic syndrome. In this study, a series of 1,4-diaryl-1,4-dihydropyrazines were designed as inhibitors of 11β-HSD1 based on the structure–activity relationship of known 11β-HSD1 inhibitors through docking simulations. The docking simulation results supported the initial pharmacophore hypothesis: the docking results of the known inhibitors with 11β-HSD1 suggested a similar interaction of 1,4-diaryl-1,4-dihydropyrazines with the catalytic site of 11β-HSD1. Twelve of these compounds were synthesized through the cyclization of N,N-dialkylanilines with anilines, and their structures were determined by 1H-NMR, 13C-NMR, high resolution (HR)-MS, and single-crystal X-ray diffraction. The inhibitory activities of these compounds against human 11β-HSD1 were investigated in vitro through a scintillation proximity assay using microsomes containing 11β-HSD1.
11β-羟基类固醇脱氢酶1型(11β-HSD1)的抑制作用显示出治疗代谢综合征各组分的潜力。本研究基于已知11β-HSD1抑制剂的构效关系,通过对接模拟设计了一系列1,4-二芳基-1,4-二氢吡嗪作为11β-HSD1的抑制剂。对接模拟结果支持了初始的药效团假设:已知抑制剂与11β-HSD1的对接结果表明,1,4-二芳基-1,4-二氢吡嗪与11β-HSD1的催化位点具有相似的相互作用。通过N,N-二烷基苯胺与苯胺的环化合成了其中12个化合物,并通过1H-NMR、13C-NMR、高分辨率(HR)-MS和单晶X射线衍射确定了它们的结构。在体外通过使用含有11β-HSD1的微粒体的闪烁接近分析法研究了这些化合物对人类11β-HSD1的抑制活性。