Structural Determinants of AMPA Agonist Activity in Analogues of 2-Amino-3-(3-carboxy-5-methyl-4-isoxazolyl)propionic Acid: Synthesis and Pharmacology
作者:Benny Bang-Andersen、Haleh Ahmadian、Sibylle M. Lenz、Tine B. Stensbøl、Ulf Madsen、Klaus P. Bøgesø、Povl Krogsgaard-Larsen
DOI:10.1021/jm0003586
日期:2000.12.1
We have previously shown that the 2-amino-3-(3-hydroxy-5-methyl-4-isoxazolyl)propionic acid (AMPA) receptor agonist, 2-amino-3-(3-carboxy-5-methyl-4-isoxazolyl)propionic acid (ACPA, 2), binds to AMPA receptors in a manner different from that of AMPA (1) itself and that 2, in contrast to 1, also binds to kainic acid receptor sites. To elucidate the structural requirements for selective activation of
先前我们已经证明了2-氨基-3-(3-羟基-5-甲基-4-异恶唑基)丙酸(AMPA)受体激动剂2-氨基-3-(3-羧基-5-甲基-4-异恶唑基)丙酸(ACPA,2)以与AMPA(1)本身不同的方式与AMPA受体结合,而与1,相反,与2相比,它也与海藻酸受体位点结合。为了阐明选择性激活被2识别的AMPA受体的位点/构象的结构要求,现已合成了2的许多等规类似物并对其进行了药理学表征。化合物2-氨基-3-(5-羧基-3-甲氧基-4-异恶唑基)丙酸(3a)(IC(50)= 0.11 microM; EC(50)= 1.2 microM),它是一个2的区域异构体甲氧基取代了甲基,大约等于2(IC(50)= 0.020 microM; EC(50)= 1。0 microM)作为[(3)H] AMPA结合抑制剂和AMPA激动剂,而相应的3-乙氧基类似物3b(IC(50)= 1.0 microM; EC(50)=