Synthesis of .beta.-carboline-benzodiazepine hybrid molecules: use of the known structural requirements for benzodiazepine and .beta.-carboline binding in designing a novel, high-affinity ligand for the benzodiazepine receptor
作者:Robert H. Dodd、Catherine Ouannes、Marie Claude Potier、Lia Prado de Carvalho、Jean Rossier、Pierre Potier
DOI:10.1021/jm00390a023
日期:1987.7
3-carboxy-beta-carbolines and 1,4-benzodiazepines were synthesized, and their affinities for the benzodiazepine receptor were determined in vitro. One of these hybrids, 8,14-dioxo-13,14-dihydro-8H-indolo[3',2':4,5]pyrido[2,1-c] [1,4]benzodiazepine (13), demonstrated high affinity for the receptor, displacing both benzodiazepines (IC50 = 23 nM) and beta-carbolines (IC50 = 47 nM) from their binding sites
合成了具有3-羧基-β-咔啉和1,4-苯并二氮杂pine的药理学重要结构特征的杂合分子,并在体外确定了它们对苯并二氮杂receptor受体的亲和力。这些杂化之一是8,14-dioxo-13,14-dihydro-8H-indolo [3',2':4,5] pyrido [2,1-c] [1,4]苯并二氮杂(13)对受体具有高亲和力,可从其结合位点取代苯二氮卓类(IC50 = 23 nM)和β-咔啉(IC50 = 47 nM)。在合成的化合物中,有13种也最满足结构要求,这些要求通常确保β-咔啉和苯并二氮杂pine对受体具有高度亲和力(例如,β-咔啉的芳香性,β的C-3处羰基的存在) -咔啉和苯并二氮杂a上的pi 2区)。不满足这些要求的杂种对受体没有亲和力。由于13的代谢不稳定和/或向大脑的转运不良,因此无法证明其在体内的药理特性。根据受体上β-咔啉结合位点与苯并二氮杂类结合位点的可能重叠来讨论结果。