Synthesis and excitatory amino acid pharmacology of a series of heterocyclic-fused quinoxalinones and quinazolinones
作者:Loretta A. McQuaid、Edward C. R. Smith、Kimberly K. South、Charles H. Mitch、Darryle D. Schoepp、Rebecca A. True、David O. Calligaro、Patrick J. O'Malley、David Lodge、Paul L. Ornstein
DOI:10.1021/jm00096a002
日期:1992.9
of potent excitatory amino acid antagonists, we synthesized and evaluated a series of substituted 1,2,4-triazolo[4,3-a]quinoxalin-4(5H)-ones, 4, tetrazolo[1,5-a]quinoxalin-4(5H)-ones, 5, and pyrazolo[1,5-c]quinazolin-5(6H)-ones, 6, and an imidazo[1,2-a]quinoxalin-4(5H)-one, 7. In general, the same heterocycles which demonstrated the best affinity for the AMPA receptor also demonstrated the best affinity
作为开发强大的兴奋性氨基酸拮抗剂的计划的一部分,我们合成并评估了一系列取代的1,2,4-三唑并[4,3-a]喹喔啉-4(5H)-ones,4,4,tetrazolo [1,5-a]喹喔啉-4(5H)-5和吡唑并[1,5-c]喹唑啉-5(6H)-ones 6和咪唑并[1,2-a]喹喔啉- 4(5H)-一,7。通常,对AMPA受体表现出最佳亲和力的相同杂环也对NMDA受体复合物上的甘氨酸位点表现出最佳亲和力。发现1-丙基-7,8-二氯-1,2,4-三唑并[4,3-a]喹喔啉-4(5H)-一,4d与ICPA对AMPA受体的亲和力最大皮层切片制剂中的0.83 microM和拮抗40 microM AMPA引起的去极化,IC50为44 microM。7,8-二氯-1,2,4-三唑并[4,3-a]喹喔啉-4(5H)-one,4a和7 8-二氯咪唑并[1,2-a]喹喔啉-4(5H)-one 7具有对