Arylcarbamate Derivatives of 1-Piperidineethanol as Potent Ligands for 5-HT<sub>4</sub> Receptors
作者:Jean-Louis Soulier、Donglai Yang、Béatrice Brémont、Tiziano Croci、Umberto Guzzi、Michel Langlois
DOI:10.1021/jm960853v
日期:1997.5.1
agonists and antagonists of 5-HT4 receptors, were synthesized. They were evaluated using radioligand binding assays with [3H]GR 113808, a 5-HT4 receptor selective ligand, in the rat striatum and the electrically stimulated myenteric plexus longitudinal muscle of the guinea pig. In contrast to the previously described ester derivatives, a drop in the affinity for 5-HT4 receptors was observed and the compounds
合成了一系列4-氨基-5-氯-2-甲氧基苯甲酸2-(1-哌啶基)乙酯的氨基甲酸酯衍生物(7),这些衍生物被描述为5-HT4受体的强效激动剂和拮抗剂。使用放射性配体结合测定法对大鼠纹状体和豚鼠的电刺激的肌层神经丛纵向肌肉中的[3H] GR 113808(5-HT4受体选择性配体)进行了评估。与先前描述的酯衍生物相反,观察到对5-HT 4受体的亲和力下降,并且该化合物在豚鼠回肠制剂中作为激动剂是无活性的。出乎意料的是,邻位取代的氨基甲酸酯8b,c(R'= H,RO = MeO或EtO,R“ = H)对5-HT4受体具有纳摩尔浓度的亲和力(Ki = 8.9 +/- 0.5和2.6 +/- 0.4 nM如之前所报道的,顺式或反式3,哌啶(8n,o)的5-二甲基取代特别有利(两种异构体的Ki = 1.1 +/- 0.6 nM)。8c是与5-HT 4受体拮抗剂SDZ 205-557(1)等价的拮抗剂。