Novel α-Amino-3-hydroxy-5-methylisoxazole-4-propionate Receptor Antagonists: Synthesis and Structure−Activity Relationships of 6-(1<i>H</i>-Imidazol-1-yl)- 7-nitro-2,3(1<i>H</i>,4<i>H</i>)-pyrido[2,3-<i>b</i>]pyrazinedione and Related Compounds
for quinoxalinedione in AMPA receptor binding. The detailed structure-activityrelationships of 6- and/or 7-substituted 2,3(1H,4H)-pyrido[2,3-b]pyrazinedione derivatives 4, 7-1-, 13, 15 and 16 showed some differences in comparison with those of the corresponding substituted quinoxalinediones, including 6-(1H-imidazol-1-yl)-7-nitro-2,3-(1H,4H)-quinoxalinedione (1) (YM90K). The X-ray study exhibited that
A series of 5-azaquinoxaline-2,3-dione derivatives were synthesized and evaluated on d-amino acid oxidase (DAAO) inhibition as potential α-hydroxylactam-based inhibitors. The potent inhibitory activities in vitro suggested that 5-nitrogen could significantly enhance the binding affinity by strengthening relevant hydrogen bond interactions. The analgesic effects of intrathecal and systemic injection
合成了一系列5-氮杂喹喔啉-2,3-二酮衍生物,并评估了其作为潜在的基于α-羟基内酰胺的抑制剂对d-氨基酸氧化酶(DAAO)的抑制作用。体外的强抑制活性表明5-氮可以通过增强相关的氢键相互作用来显着增强结合亲和力。研究了鞘内和全身注射8-氯-1,4-二氢吡啶并[2,3- b ]吡嗪-2,3-二酮(5-氮杂喹喔啉-2,3-二酮的代表分子)的镇痛作用。啮齿动物。这项研究不仅证实了DAAO抑制剂的镇痛作用,而且还提供了一类具有口服应用潜力的新型化学实体,可用于治疗慢性疼痛和吗啡镇痛耐受性。
Synthesis and biological evaluation of pyrido[2,3-b]pyrazine and pyrido[2,3-b]pyrazine-n-oxide as selective glycine antagonists
Pyrido[2,3-b]pyrazines and pyrido[2,3-b]pyrazines-N-oxides have been synthesized and evaluated for in vitro/in vivo antagonistic activity at the glycine site on the NMDA receptor. Copyright (C) 1996 Elsevier Science Ltd