New Esters of 4-Amino-5-chloro-2-methoxybenzoic Acid as Potent Agonists and Antagonists for 5-HT<sub>4</sub> Receptors
作者:Donglai Yang、Jean-Louis Soulier、Sames Sicsic、Monique Mathé-Allainmat、Béatrice Brémont、Tiziano Croci、Rosanna Cardamone、Giulio Aureggi、Michel Langlois
DOI:10.1021/jm960320m
日期:1997.2.1
hoxybenzoic acid and substituted 1-piperidineethanol were synthesized and found to be potent 5-HT4 receptor agonists in the electrically-stimulated myenteric plexus and longitudinal muscle of the guinea pig ileum and the rat esophagus muscle. Monosubstitution of the piperidine ring with Me, OH, NH-Ac, or CONH2 groups gave compounds equipotent to 7a (ML 10302), a 5-HT4 receptor agonist previously reported
合成了许多衍生自4-氨基-5-氯-2-甲氧基苯甲酸和取代的1-哌啶乙醇的苯甲酸酯,它们在豚鼠回肠的电刺激的肠神经丛和纵肌中是有效的5-HT4受体激动剂。和大鼠食道肌肉。哌啶环被Me,OH,NH-Ac或CONH2基团单取代后,化合物等效于7a(ML 10302),这是先前报道的具有纳摩尔摩尔亲和力的5-HT4受体激动剂。7a,k与5-羟色胺(5-HT)一样有效,但最大响应仅为5-HT的60-80%,表明这些化合物具有部分激动剂特性。在大鼠纹状体中用[3H] GR 113808进行结合测定,发现其中一些化合物对5-HT4受体具有纳摩尔摩尔亲和力(7a,Ki = 1.07 +/- 0.5 nM; 7k,Ki = 1。0 +/- 0.3 nM)。在哌啶环上引入两个甲基导致2-[((顺式和反式-3,5-二甲基哌啶基)乙基] -4-氨基-5-氯-2-甲氧基苯甲酸酯)的药理学特性发生了显着变化, 7克,小时