Arylpiperazinylalkylpyridazinones and Analogues as Potent and Orally Active Antinociceptive Agents: Synthesis and Studies on Mechanism of Action
作者:Nicoletta Cesari、Claudio Biancalani、Claudia Vergelli、Vittorio Dal Piaz、Alessia Graziano、Pierfrancesco Biagini、Carla Ghelardini、Nicoletta Galeotti、Maria Paola Giovannoni
DOI:10.1021/jm060743g
日期:2006.12.1
arylpiperazinylalkylpyridazinones structurally related to the previously described lead A (5-[4-(3-chlorophenyl)piperazin-1-yl]-propyl}-3-methyl-7-phenylisossazolo[4,5-d] pyridazin-4-(5H)-one) were synthesized and tested for their analgesic activity. Many of the tested molecules, at the dose of 20 mg kg-1 p.o., showed high antinociceptive activity, in particular, compounds 5a, 11c, 15a, 21 and 22, which were
在结构上与先前描述的铅A(5-[4-(3-氯苯基)哌嗪-1-基]-丙基} -3-甲基-7-苯基异s唑并[4,5-d]哒嗪-合成4-(5H)-一)并测试其镇痛活性。许多受试分子的剂量为20 mg kg-1 po,表现出很高的抗伤害感受活性,尤其是化合物5a,11c,15a,21和22,能够将腹部收缩的数量减少50多种%在扭体测试中。铅A的药理研究使我们阐明了该化合物的作用机理,表明它通过抑制去甲肾上腺素的再摄取而发挥了镇痛作用。用α2-拮抗剂育亨宾预处理可以完全防止某些最有趣的新分子的抗伤害感受,