New Synthesis of Tic-Hydantoins Sigma-1 Ligands and Pharmacological Evaluation on Cocaine-Induced Stimulant Effects
作者:M. Toussaint、M.-A. Debreu-Fontaine、T. Maurice、P. Melnyk
DOI:10.2174/157340610793563956
日期:2010.11.1
Activation of the newly identified σ1 chaperone protein is involved in several aspects of the psychostimulant and addictive effects of cocaine. The development of ligands that selectively target the σ1 protein may lead to putative potent anti-cocaine agents. We report here a new and more convergent synthetic pathway to amino side chain substituted hydantoins. Twenty new analogs of our lead compound were synthesized. None of them showed better in vitro affinity for σ1 receptor than our lead compound. Nevertheless, three of them, obtained as racemates, showed high in vitro affinity and selectivity for σ1 receptor. A preliminary in vivo evaluation of their pharmacological activity identified compound 22 as one that increases cocaine-induced locomotor stimulation and therefore acts as a potential efficient σ1 agonist.
新发现的伴侣蛋白σ1的激活涉及可卡因的精神刺激和成瘾效应的多个方面。开发选择性靶向σ1蛋白的配体可能会导致潜在强效抗可卡因药物的诞生。本文报道了一种新的、更趋同的合成途径,用于氨基酸侧链取代的乙内酰脲。合成了20种新的先导化合物类似物。其中没有一种在体外对σ1受体的亲和力超过先导化合物。然而,作为消旋体制备的三种化合物显示出对σ1受体的高体外亲和力和选择性。对它们药理活性的初步体内评价确定化合物22为一种能增强可卡因诱导的运动刺激作用的化合物,因此可作为潜在的高效σ1激动剂。