1, 8‐naphthyridine‐3‐carboxylic acid analogs were synthesized and found to possess potential 5‐HT3 receptor antagonism as well as antidepressant‐like activity. Initially, 5‐HT3 receptor antagonism of all the compounds was determined in the form of pA2 value against agonist 2‐methyl 5‐HT in longitudinal muscle–myenteric plexus preparation from guinea‐pig ileum. Among all the compounds tested, compound
合成了1个8-
萘啶-3-
羧酸类似物,发现它们具有潜在的5-HT 3受体拮抗作用和抗抑郁样活性。最初,所有化合物的5-HT 3受体拮抗作用都以豚鼠回肠纵向肌肉-肠系膜神经丛制剂对激动剂2-甲基5-HT的p A 2值的形式确定。在所有测试的化合物中,化合物7a的最有希望的pA 2值为7.6。随后,使用强迫游泳试验和尾巴悬吊试验在小鼠中评估所有化合物的抗抑郁活性。化合物7a,7d,7f,7h,和7i表现出显着(p <0.05)的抗抑郁药样活性,与赋形剂处理组比较。重要的是,在测试的剂量
水平下,没有一种测试的化合物影响小鼠的运动能力。