Design and Evaluation of Affinity Labels of Functionalized Amino Acid Anticonvulsants
作者:Arnaud LeTiran、James P. Stables、Harold Kohn
DOI:10.1021/jm020225f
日期:2002.10.1
electroshock-induced seizure (MES) test in rodents. Affinity labels patterned in part after the potent antiepileptic (R)-N-benzyl-2-acetamido-3-methoxypropionamide ((R)-2) have been prepared as mechanistic probes to learn the pharmacological basis for FAA function. The chemical reactivity of the affinity labels with nucleophiles was assessed, and the labels were evaluated in in vitro radioligand assays and in
研究表明,功能化氨基酸(FAA)在啮齿动物的最大电击诱发癫痫发作(MES)测试中表现出出色的活性。已经准备了在有效的抗癫痫药(R)-N-苄基-2-乙酰氨基-3-甲氧基丙酰胺((R)-2)之后部分构图的亲和标记作为机理探针,以了解FAA功能的药理基础。评估亲和标记物与亲核试剂的化学反应性,并在体外放射性配体测定和啮齿动物的MES测试中评估标记物。亲和标记物不与已知会引起癫痫扩散的受体结合。三种亲和标记,(R,S)-N-苄基-2-乙酰氨基-6-异硫氰酸根己酰胺((R,S)-5),(R)-N-(4-异硫氰酸根合苄基)-2-乙酰氨基-3-甲氧基丙酰胺((R)-6)和(R)-N-(3-异硫氰酸根合苄基)-2-乙酰胺基-3-甲氧基丙酰胺((R-7)),具有比FAA通常观察到的优异的体内抗惊厥活性,并在较晚的时间显示最大活性。6和7的抗惊厥活性主要存在于(R)-对映体中,大鼠(po)中的(R)-6和(R