Synthesis and structure-activity relationships of a series of aminopyridazine derivatives of .gamma.-aminobutyric acid acting as selective GABA-A antagonists
作者:Camille Georges Wermuth、Jean Jacques Bourguignon、Gilbert Schlewer、Jean Pierre Gies、Angele Schoenfelder、Anita Melikian、Marie Jeanne Bouchet、Dominique Chantreux、Jean Charles Molimard
DOI:10.1021/jm00385a003
日期:1987.2
We have recently shown that an arylaminopyridazine derivative of GABA, SR 95103 [2-(3-carboxypropyl)-3-amino-4-methyl-6-phenylpyridazinium chloride], is a selective and competitive GABA-A receptor antagonist. In order to further explore the structural requirements for GABA receptor affinity, we synthesized a series of 38 compounds by attaching various pyridazinic structures to GABA or GABA-like side
我们最近发现,GABA的芳基氨基哒嗪衍生物SR 95103 [2-(3-羧丙基)-3-氨基-4-甲基-6-苯基吡啶并鎓氯化物]是一种选择性和竞争性的GABA-A受体拮抗剂。为了进一步探索对GABA受体亲和力的结构要求,我们通过将各种哒嗪结构连接到GABA或GABA样侧链上,合成了38种化合物。大多数化合物从大鼠脑膜中取代了[3H] GABA。所有活性化合物都拮抗了GABA引起的[3H]地西p结合的增强,强烈表明所有这些化合物都是GABA-A受体拮抗剂。从大鼠脑膜置换[3H] GABA的化合物均未与其他GABA识别位点(GABA-B受体,GABA吸收结合位点,谷氨酸脱羧酶,GABA转氨酶)相互作用。它们不与与GABA-A受体相关的Cl-离子载体相互作用,也不与苯并二氮杂str,士的宁和谷氨酸结合位点相互作用。因此,这些化合物似乎是特异性的GABA-A受体拮抗剂。就结构活性而言,可以得出结论,