Piperidine propionamide as a scaffold for potent sigma-1 receptor antagonists and mu opioid receptor agonists for treating neuropathic pain
作者:Jiaying Xiong、Jian Jin、Lanchang Gao、Chao Hao、Xin Liu、Bi-Feng Liu、Yin Chen、Guisen Zhang
DOI:10.1016/j.ejmech.2020.112144
日期:2020.4
synthesized a novel series of piperidine propionamide derivatives as potent sigma-1 (σ1) receptor antagonists and mu (μ) opioid receptor agonists, and measured their affinity for σ1 and μ receptors in vitro through binding assays. The basic scaffold of the new compounds contained a 4-substituted piperidine ring and N-aryl propionamide. Compound 44, N-(2-(4-(4-fluorobenzyl) piperidin-1-yl) ethyl)-N-(4-methoxy-phenyl)
我们设计并合成了一系列新颖的哌啶丙酰胺衍生物,作为有效的sigma-1(σ1)受体拮抗剂和mu(μ)阿片样物质受体激动剂,并通过结合测定体外测量了它们对σ1和μ受体的亲和力。新化合物的基本支架包含一个4-取代的哌啶环和N-芳基丙酰胺。N-(2-(4-(4-(4-氟苄基)哌啶-1-基)乙基)-N-(4-甲氧基-苯基)丙酰胺化合物44对σ1受体的亲和力最高(Kiσ1= 1.86 nM)和μ受体(Kiμ= 2.1 nM)。它在福尔马林试验中表现出有效的镇痛作用(ED50 = 15.1±1.67 mg / kg),在CCI模型中具有与S1RA(σ1拮抗剂)相同的镇痛作用。因此,具有混合的σ1/μ受体分布的化合物44可能是治疗神经性疼痛的潜在候选药物。