Heteroaryl Analogues of AMPA. Synthesis and Quantitative Structure−Activity Relationships
作者:Benny Bang-Andersen、Sibylle M. Lenz、Niels Skjærbæk,、Karina K. Søby、Hans O. Hansen、Bjarke Ebert、Klaus P. Bøgesø、Povl Krogsgaard-Larsen
DOI:10.1021/jm970253b
日期:1997.8.1
A number of 3-isoxazolol bioisosteres, 7a-i, of (S)-glutamic acid (Glu), in which the methyl group of (RS)-2-amino-3-(3-hydroxy-5-methylisoxazol-4-yl)propionic acid (AMPA, 1) was replaced by different 5-membered heterocyclic rings, were synthesized. Comparative in vitro pharmacological studies on this series of AMPA analogues were performed using receptor binding assays (IC50 values) and the electrophysiological
(S)-谷氨酸(Glu)的许多3-isoxazolol生物甾体7a-i,其中(RS)-2-amino-3-(3-hydroxy-5-methylisoxazol-4-丙基)丙酸(AMPA,1)被不同的5元杂环取代,得到了合成。使用受体结合测定(IC50值)和电生理大鼠皮层切片模型(EC50值)对这一系列AMPA类似物进行了比较的体外药理研究。这些化合物均未显示出对Glu受体的N-甲基-D-天冬氨酸亚型的可检测亲和力。一些化合物是[3H]海藻酸结合的弱抑制剂。在7a-i的AMPA受体上对[3H] AMPA结合和激动剂的抑制作用严格取决于杂环5-取代基的结构,静电势和甲基取代。因此,而7a(IC50 = 0.094 microM; EC50 = 2.3 microM)与AMPA(IC50 = 0.023 microM; EC50 = 5.4 microM)大致相等,(RS)-2-氨基-3- [