3-Acyl-4-hydroxyquinolin-2(1H)-ones. Systemically active anticonvulsants acting by antagonism at the glycine site of the N-methyl-D-aspartate receptor complex
作者:Michael Rowley、Paul D. Leeson、Graeme I. Stevenson、Angela M. Moseley、Ian Stansfield、Ian Sanderson、Lesley Robinson、Raymond Baker、John A. Kemp
DOI:10.1021/jm00074a020
日期:1993.10
receptor contain a carboxylic acid, which we believe to be detrimental to penetration of the blood-brain barrier. By consideration of a pharmacophore, novel antagonists at this site have been designed in which the anionic functionality is a vinylogous acid, in the form of a 4-hydroxyquinolin-2(1H)-one. In this series, a 3-substituent is necessary for binding, and correct manipulation of this group leads
NMDA受体的甘氨酸位点上的大多数完全拮抗剂都包含一种羧酸,我们认为这对血脑屏障的渗透是有害的。通过考虑药效基团,已经设计了该位点的新型拮抗剂,其中阴离子官能团是4-羟基喹啉-2(1H)-一形式的乙烯基次糖基酸。在该系列中,结合需要使用3个取代基,并且对该基团的正确操作会导致生成化合物,例如3-(3-羟苯基)炔丙基酯24(L-701,273),其IC50取代[3H] -L-689,560在1.39 microM的皮质切片中结合0.17 microM和Kb与NMDA结合。测试化合物在DBA / 2小鼠中预防音源性癫痫发作的能力。该系列中最有效的化合物是环丙基酮42(L-701,252),ED50为4。1 mg / kg腹腔注射。提出了与甘氨酸位点结合的模型,其中重要的相互作用是推定的受体阳离子与3-取代基的pi-系统。