Synthesis and evaluation of hermitamides A and B as human voltage-gated sodium channel blockers
作者:Eliseu O. De Oliveira、Kristin M. Graf、Manoj K. Patel、Aparna Baheti、Hye-Sik Kong、Linda H. MacArthur、Sivanesan Dakshanamurthy、Kan Wang、Milton L. Brown、Mikell Paige
DOI:10.1016/j.bmc.2011.05.043
日期:2011.7
hermitamides are ligands for the human voltage-gated sodium channel (hNaV) based on their structural similarity to the jamaicamides. Herein, we describe the nonracemic total synthesis of hermitamides A and B and their epimers. We report the ability of the hermitamides to displace [3H]-BTX at 10 μM more potently than phenytoin, a clinically used sodium channel blocker. We also present a potential binding mode
Hermitamides A 和 B 是从巴布亚新几内亚海洋蓝藻Lyngbya majuscula 的集合中分离出来的脂肽。我们假设 Hermitamides 是人类电压门控钠通道 (hNa V ) 的配体,这是基于它们与牙买加酰胺的结构相似性。在此,我们描述了hermitamides A 和B 及其差向异构体的非外消旋全合成。我们报告了 Hermitamides比苯妥英(一种临床使用的钠通道阻滞剂)更有效地置换 10 μM 的[ 3 H]-BTX的能力。我们还在BTX 结合位点和电生理学中展示了 ( S )-hermitamide B的潜在结合模式,表明这些化合物是 hNav1.2 电压门控钠通道的有效阻滞剂。