Structure-activity relationship studies of central nervous system (CNS) agents. 5. Effect of the hydrocarbon chain on the affinity of 4-substituted 1-(3-chlorophenyl)piperazines for 5-HT1A receptor sites
作者:Jerzy L. Mokrosz、Marzena Pietrasiewicz、Beata Duszynska、Marek T. Cegla
DOI:10.1021/jm00091a004
日期:1992.6
contribute to their 5-HT1A affinity. The specific binding constant was defined as the receptor affinity of the protonated species of compounds under physiological conditions. The range of Ki(AH+) = 1 - 3 x 10(-11) M is a specific affinity limit of the investigated class of compounds at the 5-HT1A receptor sites.
研究了模型4-取代的1-(3-氯苯基)哌嗪12-31的烃链对其对5-HT1A受体位点的亲和力的影响。发现4-正烷基链的延长强烈增加了所研究化合物的5-HT1A亲和力。正己基衍生物20的亲和力达到最大值(Ki = 2.67nM)。已表明1-芳基哌嗪的N-4取代基的疏水相互作用显着地促进了它们的5-HT1A亲和力。特异性结合常数定义为在生理条件下化合物的质子化物质的受体亲和力。Ki(AH +)的范围为1-3 x 10(-11)M是在5-HT1A受体位点上所研究化合物类别的特定亲和力极限。